1 /*
2  * Copyright (C) 2006 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.provider;
18 
19 
20 import android.annotation.SdkConstant;
21 import android.annotation.SdkConstant.SdkConstantType;
22 import android.app.Activity;
23 import android.app.AlarmManager;
24 import android.app.PendingIntent;
25 import android.content.ContentProviderClient;
26 import android.content.ContentResolver;
27 import android.content.ContentUris;
28 import android.content.ContentValues;
29 import android.content.Context;
30 import android.content.CursorEntityIterator;
31 import android.content.Entity;
32 import android.content.EntityIterator;
33 import android.content.Intent;
34 import android.database.Cursor;
35 import android.database.DatabaseUtils;
36 import android.net.Uri;
37 import android.os.RemoteException;
38 import android.text.format.DateUtils;
39 import android.text.format.Time;
40 import android.util.Log;
41 
42 /**
43  * <p>
44  * The contract between the calendar provider and applications. Contains
45  * definitions for the supported URIs and data columns.
46  * </p>
47  * <h3>Overview</h3>
48  * <p>
49  * CalendarContract defines the data model of calendar and event related
50  * information. This data is stored in a number of tables:
51  * </p>
52  * <ul>
53  * <li>The {@link Calendars} table holds the calendar specific information. Each
54  * row in this table contains the details for a single calendar, such as the
55  * name, color, sync info, etc.</li>
56  * <li>The {@link Events} table holds the event specific information. Each row
57  * in this table has the info for a single event. It contains information such
58  * as event title, location, start time, end time, etc. The event can occur
59  * one-time or can recur multiple times. Attendees, reminders, and extended
60  * properties are stored on separate tables and reference the {@link Events#_ID}
61  * to link them with the event.</li>
62  * <li>The {@link Instances} table holds the start and end time for occurrences
63  * of an event. Each row in this table represents a single occurrence. For
64  * one-time events there will be a 1:1 mapping of instances to events. For
65  * recurring events, multiple rows will automatically be generated which
66  * correspond to multiple occurrences of that event.</li>
67  * <li>The {@link Attendees} table holds the event attendee or guest
68  * information. Each row represents a single guest of an event. It specifies the
69  * type of guest they are and their attendance response for the event.</li>
70  * <li>The {@link Reminders} table holds the alert/notification data. Each row
71  * represents a single alert for an event. An event can have multiple reminders.
72  * The number of reminders per event is specified in
73  * {@link Calendars#MAX_REMINDERS} which is set by the Sync Adapter that owns
74  * the given calendar. Reminders are specified in minutes before the event and
75  * have a type.</li>
76  * <li>The {@link ExtendedProperties} table holds opaque data fields used by the
77  * sync adapter. The provider takes no action with items in this table except to
78  * delete them when their related events are deleted.</li>
79  * </ul>
80  * <p>
81  * Other tables include:
82  * </p>
83  * <ul>
84  * <li>
85  * {@link SyncState}, which contains free-form data maintained by the sync
86  * adapters</li>
87  * </ul>
88  *
89  */
90 public final class CalendarContract {
91     private static final String TAG = "Calendar";
92 
93     /**
94      * Broadcast Action: This is the intent that gets fired when an alarm
95      * notification needs to be posted for a reminder.
96      *
97      */
98     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
99     public static final String ACTION_EVENT_REMINDER = "android.intent.action.EVENT_REMINDER";
100 
101     /**
102      * Activity Action: Display the event to the user in the custom app as
103      * specified in {@link EventsColumns#CUSTOM_APP_PACKAGE}. The custom app
104      * will be started via {@link Activity#startActivityForResult(Intent, int)}
105      * and it should call {@link Activity#setResult(int)} with
106      * {@link Activity#RESULT_OK} or {@link Activity#RESULT_CANCELED} to
107      * acknowledge whether the action was handled or not.
108      *
109      * The custom app should have an intent filter like the following:
110      * <pre>
111      * &lt;intent-filter&gt;
112      *    &lt;action android:name="android.provider.calendar.action.HANDLE_CUSTOM_EVENT" /&gt;
113      *    &lt;category android:name="android.intent.category.DEFAULT" /&gt;
114      *    &lt;data android:mimeType="vnd.android.cursor.item/event" /&gt;
115      * &lt;/intent-filter&gt;</pre>
116      * <p>
117      * Input: {@link Intent#getData} has the event URI. The extra
118      * {@link #EXTRA_EVENT_BEGIN_TIME} has the start time of the instance. The
119      * extra {@link #EXTRA_CUSTOM_APP_URI} will have the
120      * {@link EventsColumns#CUSTOM_APP_URI}.
121      * <p>
122      * Output: {@link Activity#RESULT_OK} if this was handled; otherwise
123      * {@link Activity#RESULT_CANCELED}.
124      */
125     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
126     public static final String ACTION_HANDLE_CUSTOM_EVENT =
127         "android.provider.calendar.action.HANDLE_CUSTOM_EVENT";
128 
129     /**
130      * Intent Extras key: {@link EventsColumns#CUSTOM_APP_URI} for the event in
131      * the {@link #ACTION_HANDLE_CUSTOM_EVENT} intent
132      */
133     public static final String EXTRA_CUSTOM_APP_URI = "customAppUri";
134 
135     /**
136      * Intent Extras key: The start time of an event or an instance of a
137      * recurring event. (milliseconds since epoch)
138      */
139     public static final String EXTRA_EVENT_BEGIN_TIME = "beginTime";
140 
141     /**
142      * Intent Extras key: The end time of an event or an instance of a recurring
143      * event. (milliseconds since epoch)
144      */
145     public static final String EXTRA_EVENT_END_TIME = "endTime";
146 
147     /**
148      * Intent Extras key: When creating an event, set this to true to create an
149      * all-day event by default
150      */
151     public static final String EXTRA_EVENT_ALL_DAY = "allDay";
152 
153     /**
154      * This authority is used for writing to or querying from the calendar
155      * provider. Note: This is set at first run and cannot be changed without
156      * breaking apps that access the provider.
157      */
158     public static final String AUTHORITY = "com.android.calendar";
159 
160     /**
161      * The content:// style URL for the top-level calendar authority
162      */
163     public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY);
164 
165     /**
166      * An optional insert, update or delete URI parameter that allows the caller
167      * to specify that it is a sync adapter. The default value is false. If set
168      * to true, the modified row is not marked as "dirty" (needs to be synced)
169      * and when the provider calls
170      * {@link ContentResolver#notifyChange(android.net.Uri, android.database.ContentObserver, boolean)}
171      * , the third parameter "syncToNetwork" is set to false. Furthermore, if
172      * set to true, the caller must also include
173      * {@link Calendars#ACCOUNT_NAME} and {@link Calendars#ACCOUNT_TYPE} as
174      * query parameters.
175      *
176      * @see Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)
177      */
178     public static final String CALLER_IS_SYNCADAPTER = "caller_is_syncadapter";
179 
180     /**
181      * A special account type for calendars not associated with any account.
182      * Normally calendars that do not match an account on the device will be
183      * removed. Setting the account_type on a calendar to this will prevent it
184      * from being wiped if it does not match an existing account.
185      *
186      * @see SyncColumns#ACCOUNT_TYPE
187      */
188     public static final String ACCOUNT_TYPE_LOCAL = "LOCAL";
189 
190     /**
191      * This utility class cannot be instantiated
192      */
CalendarContract()193     private CalendarContract() {}
194 
195     /**
196      * Generic columns for use by sync adapters. The specific functions of these
197      * columns are private to the sync adapter. Other clients of the API should
198      * not attempt to either read or write this column. These columns are
199      * editable as part of the Calendars Uri, but can only be read if accessed
200      * through any other Uri.
201      */
202     protected interface CalendarSyncColumns {
203 
204 
205         /**
206          * Generic column for use by sync adapters. Column name.
207          * <P>Type: TEXT</P>
208          */
209         public static final String CAL_SYNC1 = "cal_sync1";
210 
211         /**
212          * Generic column for use by sync adapters. Column name.
213          * <P>Type: TEXT</P>
214          */
215         public static final String CAL_SYNC2 = "cal_sync2";
216 
217         /**
218          * Generic column for use by sync adapters. Column name.
219          * <P>Type: TEXT</P>
220          */
221         public static final String CAL_SYNC3 = "cal_sync3";
222 
223         /**
224          * Generic column for use by sync adapters. Column name.
225          * <P>Type: TEXT</P>
226          */
227         public static final String CAL_SYNC4 = "cal_sync4";
228 
229         /**
230          * Generic column for use by sync adapters. Column name.
231          * <P>Type: TEXT</P>
232          */
233         public static final String CAL_SYNC5 = "cal_sync5";
234 
235         /**
236          * Generic column for use by sync adapters. Column name.
237          * <P>Type: TEXT</P>
238          */
239         public static final String CAL_SYNC6 = "cal_sync6";
240 
241         /**
242          * Generic column for use by sync adapters. Column name.
243          * <P>Type: TEXT</P>
244          */
245         public static final String CAL_SYNC7 = "cal_sync7";
246 
247         /**
248          * Generic column for use by sync adapters. Column name.
249          * <P>Type: TEXT</P>
250          */
251         public static final String CAL_SYNC8 = "cal_sync8";
252 
253         /**
254          * Generic column for use by sync adapters. Column name.
255          * <P>Type: TEXT</P>
256          */
257         public static final String CAL_SYNC9 = "cal_sync9";
258 
259         /**
260          * Generic column for use by sync adapters. Column name.
261          * <P>Type: TEXT</P>
262          */
263         public static final String CAL_SYNC10 = "cal_sync10";
264     }
265 
266     /**
267      * Columns for Sync information used by Calendars and Events tables. These
268      * have specific uses which are expected to be consistent by the app and
269      * sync adapter.
270      *
271      */
272     protected interface SyncColumns extends CalendarSyncColumns {
273         /**
274          * The account that was used to sync the entry to the device. If the
275          * account_type is not {@link #ACCOUNT_TYPE_LOCAL} then the name and
276          * type must match an account on the device or the calendar will be
277          * deleted.
278          * <P>Type: TEXT</P>
279          */
280         public static final String ACCOUNT_NAME = "account_name";
281 
282         /**
283          * The type of the account that was used to sync the entry to the
284          * device. A type of {@link #ACCOUNT_TYPE_LOCAL} will keep this event
285          * form being deleted if there are no matching accounts on the device.
286          * <P>Type: TEXT</P>
287          */
288         public static final String ACCOUNT_TYPE = "account_type";
289 
290         /**
291          * The unique ID for a row assigned by the sync source. NULL if the row
292          * has never been synced. This is used as a reference id for exceptions
293          * along with {@link BaseColumns#_ID}.
294          * <P>Type: TEXT</P>
295          */
296         public static final String _SYNC_ID = "_sync_id";
297 
298         /**
299          * Used to indicate that local, unsynced, changes are present.
300          * <P>Type: INTEGER (long)</P>
301          */
302 
303         public static final String DIRTY = "dirty";
304 
305         /**
306          * Used in conjunction with {@link #DIRTY} to indicate what packages wrote local changes.
307          * <P>Type: TEXT</P>
308          */
309         public static final String MUTATORS = "mutators";
310 
311         /**
312          * Whether the row has been deleted but not synced to the server. A
313          * deleted row should be ignored.
314          * <P>
315          * Type: INTEGER (boolean)
316          * </P>
317          */
318         public static final String DELETED = "deleted";
319 
320         /**
321          * If set to 1 this causes events on this calendar to be duplicated with
322          * {@link Events#LAST_SYNCED} set to 1 whenever the event
323          * transitions from non-dirty to dirty. The duplicated event will not be
324          * expanded in the instances table and will only show up in sync adapter
325          * queries of the events table. It will also be deleted when the
326          * originating event has its dirty flag cleared by the sync adapter.
327          * <P>Type: INTEGER (boolean)</P>
328          */
329         public static final String CAN_PARTIALLY_UPDATE = "canPartiallyUpdate";
330     }
331 
332     /**
333      * Columns specific to the Calendars Uri that other Uris can query.
334      */
335     protected interface CalendarColumns {
336         /**
337          * The color of the calendar. This should only be updated by the sync
338          * adapter, not other apps, as changing a calendar's color can adversely
339          * affect its display.
340          * <P>Type: INTEGER (color value)</P>
341          */
342         public static final String CALENDAR_COLOR = "calendar_color";
343 
344         /**
345          * A key for looking up a color from the {@link Colors} table. NULL or
346          * an empty string are reserved for indicating that the calendar does
347          * not use a key for looking up the color. The provider will update
348          * {@link #CALENDAR_COLOR} automatically when a valid key is written to
349          * this column. The key must reference an existing row of the
350          * {@link Colors} table. @see Colors
351          * <P>
352          * Type: TEXT
353          * </P>
354          */
355         public static final String CALENDAR_COLOR_KEY = "calendar_color_index";
356 
357         /**
358          * The display name of the calendar. Column name.
359          * <P>
360          * Type: TEXT
361          * </P>
362          */
363         public static final String CALENDAR_DISPLAY_NAME = "calendar_displayName";
364 
365         /**
366          * The level of access that the user has for the calendar
367          * <P>Type: INTEGER (one of the values below)</P>
368          */
369         public static final String CALENDAR_ACCESS_LEVEL = "calendar_access_level";
370 
371         /** Cannot access the calendar */
372         public static final int CAL_ACCESS_NONE = 0;
373         /** Can only see free/busy information about the calendar */
374         public static final int CAL_ACCESS_FREEBUSY = 100;
375         /** Can read all event details */
376         public static final int CAL_ACCESS_READ = 200;
377         /** Can reply yes/no/maybe to an event */
378         public static final int CAL_ACCESS_RESPOND = 300;
379         /** not used */
380         public static final int CAL_ACCESS_OVERRIDE = 400;
381         /** Full access to modify the calendar, but not the access control
382          * settings
383          */
384         public static final int CAL_ACCESS_CONTRIBUTOR = 500;
385         /** Full access to modify the calendar, but not the access control
386          * settings
387          */
388         public static final int CAL_ACCESS_EDITOR = 600;
389         /** Full access to the calendar */
390         public static final int CAL_ACCESS_OWNER = 700;
391         /** Domain admin */
392         public static final int CAL_ACCESS_ROOT = 800;
393 
394         /**
395          * Is the calendar selected to be displayed?
396          * 0 - do not show events associated with this calendar.
397          * 1 - show events associated with this calendar
398          * <P>Type: INTEGER (boolean)</P>
399          */
400         public static final String VISIBLE = "visible";
401 
402         /**
403          * The time zone the calendar is associated with.
404          * <P>Type: TEXT</P>
405          */
406         public static final String CALENDAR_TIME_ZONE = "calendar_timezone";
407 
408         /**
409          * Is this calendar synced and are its events stored on the device?
410          * 0 - Do not sync this calendar or store events for this calendar.
411          * 1 - Sync down events for this calendar.
412          * <p>Type: INTEGER (boolean)</p>
413          */
414         public static final String SYNC_EVENTS = "sync_events";
415 
416         /**
417          * The owner account for this calendar, based on the calendar feed.
418          * This will be different from the _SYNC_ACCOUNT for delegated calendars.
419          * Column name.
420          * <P>Type: String</P>
421          */
422         public static final String OWNER_ACCOUNT = "ownerAccount";
423 
424         /**
425          * Can the organizer respond to the event?  If no, the status of the
426          * organizer should not be shown by the UI.  Defaults to 1. Column name.
427          * <P>Type: INTEGER (boolean)</P>
428          */
429         public static final String CAN_ORGANIZER_RESPOND = "canOrganizerRespond";
430 
431         /**
432          * Can the organizer modify the time zone of the event? Column name.
433          * <P>Type: INTEGER (boolean)</P>
434         */
435         public static final String CAN_MODIFY_TIME_ZONE = "canModifyTimeZone";
436 
437         /**
438          * The maximum number of reminders allowed for an event. Column name.
439          * <P>Type: INTEGER</P>
440          */
441         public static final String MAX_REMINDERS = "maxReminders";
442 
443         /**
444          * A comma separated list of reminder methods supported for this
445          * calendar in the format "#,#,#". Valid types are
446          * {@link Reminders#METHOD_DEFAULT}, {@link Reminders#METHOD_ALERT},
447          * {@link Reminders#METHOD_EMAIL}, {@link Reminders#METHOD_SMS},
448          * {@link Reminders#METHOD_ALARM}. Column name.
449          * <P>Type: TEXT</P>
450          */
451         public static final String ALLOWED_REMINDERS = "allowedReminders";
452 
453         /**
454          * A comma separated list of availability types supported for this
455          * calendar in the format "#,#,#". Valid types are
456          * {@link Events#AVAILABILITY_BUSY}, {@link Events#AVAILABILITY_FREE},
457          * {@link Events#AVAILABILITY_TENTATIVE}. Setting this field to only
458          * {@link Events#AVAILABILITY_BUSY} should be used to indicate that
459          * changing the availability is not supported.
460          *
461          */
462         public static final String ALLOWED_AVAILABILITY = "allowedAvailability";
463 
464         /**
465          * A comma separated list of attendee types supported for this calendar
466          * in the format "#,#,#". Valid types are {@link Attendees#TYPE_NONE},
467          * {@link Attendees#TYPE_OPTIONAL}, {@link Attendees#TYPE_REQUIRED},
468          * {@link Attendees#TYPE_RESOURCE}. Setting this field to only
469          * {@link Attendees#TYPE_NONE} should be used to indicate that changing
470          * the attendee type is not supported.
471          *
472          */
473         public static final String ALLOWED_ATTENDEE_TYPES = "allowedAttendeeTypes";
474 
475         /**
476          * Is this the primary calendar for this account. If this column is not explicitly set, the
477          * provider will return 1 if {@link Calendars#ACCOUNT_NAME} is equal to
478          * {@link Calendars#OWNER_ACCOUNT}.
479          */
480         public static final String IS_PRIMARY = "isPrimary";
481     }
482 
483     /**
484      * Class that represents a Calendar Entity. There is one entry per calendar.
485      * This is a helper class to make batch operations easier.
486      */
487     public static final class CalendarEntity implements BaseColumns, SyncColumns, CalendarColumns {
488 
489         /**
490          * The default Uri used when creating a new calendar EntityIterator.
491          */
492         @SuppressWarnings("hiding")
493         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
494                 "/calendar_entities");
495 
496         /**
497          * This utility class cannot be instantiated
498          */
CalendarEntity()499         private CalendarEntity() {}
500 
501         /**
502          * Creates an entity iterator for the given cursor. It assumes the
503          * cursor contains a calendars query.
504          *
505          * @param cursor query on {@link #CONTENT_URI}
506          * @return an EntityIterator of calendars
507          */
newEntityIterator(Cursor cursor)508         public static EntityIterator newEntityIterator(Cursor cursor) {
509             return new EntityIteratorImpl(cursor);
510         }
511 
512         private static class EntityIteratorImpl extends CursorEntityIterator {
513 
EntityIteratorImpl(Cursor cursor)514             public EntityIteratorImpl(Cursor cursor) {
515                 super(cursor);
516             }
517 
518             @Override
getEntityAndIncrementCursor(Cursor cursor)519             public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
520                 // we expect the cursor is already at the row we need to read from
521                 final long calendarId = cursor.getLong(cursor.getColumnIndexOrThrow(_ID));
522 
523                 // Create the content value
524                 ContentValues cv = new ContentValues();
525                 cv.put(_ID, calendarId);
526 
527                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_NAME);
528                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ACCOUNT_TYPE);
529 
530                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
531                 DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
532                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, MUTATORS);
533 
534                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
535                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
536                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
537                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
538                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
539                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
540                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
541                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
542                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
543                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
544 
545                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, Calendars.NAME);
546                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
547                         Calendars.CALENDAR_DISPLAY_NAME);
548                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
549                         Calendars.CALENDAR_COLOR);
550                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
551                         Calendars.CALENDAR_COLOR_KEY);
552                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ACCESS_LEVEL);
553                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, VISIBLE);
554                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SYNC_EVENTS);
555                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
556                         Calendars.CALENDAR_LOCATION);
557                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CALENDAR_TIME_ZONE);
558                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
559                         Calendars.OWNER_ACCOUNT);
560                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
561                         Calendars.CAN_ORGANIZER_RESPOND);
562                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
563                         Calendars.CAN_MODIFY_TIME_ZONE);
564                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
565                         Calendars.MAX_REMINDERS);
566                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
567                         Calendars.CAN_PARTIALLY_UPDATE);
568                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
569                         Calendars.ALLOWED_REMINDERS);
570 
571                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
572 
573                 // Create the Entity from the ContentValue
574                 Entity entity = new Entity(cv);
575 
576                 // Set cursor to next row
577                 cursor.moveToNext();
578 
579                 // Return the created Entity
580                 return entity;
581             }
582         }
583      }
584 
585     /**
586      * Constants and helpers for the Calendars table, which contains details for
587      * individual calendars. <h3>Operations</h3> All operations can be done
588      * either as an app or as a sync adapter. To perform an operation as a sync
589      * adapter {@link #CALLER_IS_SYNCADAPTER} should be set to true and
590      * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
591      * parameters. See
592      * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
593      * for details on adding parameters. Sync adapters have write access to more
594      * columns but are restricted to a single account at a time. Calendars are
595      * designed to be primarily managed by a sync adapter and inserting new
596      * calendars should be done as a sync adapter. For the most part, apps
597      * should only update calendars (such as changing the color or display
598      * name). If a local calendar is required an app can do so by inserting as a
599      * sync adapter and using an {@link #ACCOUNT_TYPE} of
600      * {@link #ACCOUNT_TYPE_LOCAL} .
601      * <dl>
602      * <dt><b>Insert</b></dt>
603      * <dd>When inserting a new calendar the following fields must be included:
604      * <ul>
605      * <li>{@link #ACCOUNT_NAME}</li>
606      * <li>{@link #ACCOUNT_TYPE}</li>
607      * <li>{@link #NAME}</li>
608      * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
609      * <li>{@link #CALENDAR_COLOR}</li>
610      * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
611      * <li>{@link #OWNER_ACCOUNT}</li>
612      * </ul>
613      * The following fields are not required when inserting a Calendar but are
614      * generally a good idea to include:
615      * <ul>
616      * <li>{@link #SYNC_EVENTS} set to 1</li>
617      * <li>{@link #CALENDAR_TIME_ZONE}</li>
618      * <li>{@link #ALLOWED_REMINDERS}</li>
619      * <li>{@link #ALLOWED_AVAILABILITY}</li>
620      * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
621      * </ul>
622      * <dt><b>Update</b></dt>
623      * <dd>To perform an update on a calendar the {@link #_ID} of the calendar
624      * should be provided either as an appended id to the Uri (
625      * {@link ContentUris#withAppendedId}) or as the first selection item--the
626      * selection should start with "_id=?" and the first selectionArg should be
627      * the _id of the calendar. Calendars may also be updated using a selection
628      * without the id. In general, the {@link #ACCOUNT_NAME} and
629      * {@link #ACCOUNT_TYPE} should not be changed after a calendar is created
630      * as this can cause issues for sync adapters.
631      * <dt><b>Delete</b></dt>
632      * <dd>Calendars can be deleted either by the {@link #_ID} as an appended id
633      * on the Uri or using any standard selection. Deleting a calendar should
634      * generally be handled by a sync adapter as it will remove the calendar
635      * from the database and all associated data (aka events).</dd>
636      * <dt><b>Query</b></dt>
637      * <dd>Querying the Calendars table will get you all information about a set
638      * of calendars. There will be one row returned for each calendar that
639      * matches the query selection, or at most a single row if the {@link #_ID}
640      * is appended to the Uri.</dd>
641      * </dl>
642      * <h3>Calendar Columns</h3> The following Calendar columns are writable by
643      * both an app and a sync adapter.
644      * <ul>
645      * <li>{@link #NAME}</li>
646      * <li>{@link #CALENDAR_DISPLAY_NAME}</li>
647      * <li>{@link #VISIBLE}</li>
648      * <li>{@link #SYNC_EVENTS}</li>
649      * </ul>
650      * The following Calendars columns are writable only by a sync adapter
651      * <ul>
652      * <li>{@link #ACCOUNT_NAME}</li>
653      * <li>{@link #ACCOUNT_TYPE}</li>
654      * <li>{@link #CALENDAR_COLOR}</li>
655      * <li>{@link #_SYNC_ID}</li>
656      * <li>{@link #DIRTY}</li>
657      * <li>{@link #MUTATORS}</li>
658      * <li>{@link #OWNER_ACCOUNT}</li>
659      * <li>{@link #MAX_REMINDERS}</li>
660      * <li>{@link #ALLOWED_REMINDERS}</li>
661      * <li>{@link #ALLOWED_AVAILABILITY}</li>
662      * <li>{@link #ALLOWED_ATTENDEE_TYPES}</li>
663      * <li>{@link #CAN_MODIFY_TIME_ZONE}</li>
664      * <li>{@link #CAN_ORGANIZER_RESPOND}</li>
665      * <li>{@link #CAN_PARTIALLY_UPDATE}</li>
666      * <li>{@link #CALENDAR_LOCATION}</li>
667      * <li>{@link #CALENDAR_TIME_ZONE}</li>
668      * <li>{@link #CALENDAR_ACCESS_LEVEL}</li>
669      * <li>{@link #DELETED}</li>
670      * <li>{@link #CAL_SYNC1}</li>
671      * <li>{@link #CAL_SYNC2}</li>
672      * <li>{@link #CAL_SYNC3}</li>
673      * <li>{@link #CAL_SYNC4}</li>
674      * <li>{@link #CAL_SYNC5}</li>
675      * <li>{@link #CAL_SYNC6}</li>
676      * <li>{@link #CAL_SYNC7}</li>
677      * <li>{@link #CAL_SYNC8}</li>
678      * <li>{@link #CAL_SYNC9}</li>
679      * <li>{@link #CAL_SYNC10}</li>
680      * </ul>
681      */
682     public static final class Calendars implements BaseColumns, SyncColumns, CalendarColumns {
683 
684         /**
685          * This utility class cannot be instantiated
686          */
Calendars()687         private Calendars() {}
688 
689         /**
690          * The content:// style URL for accessing Calendars
691          */
692         @SuppressWarnings("hiding")
693         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/calendars");
694 
695         /**
696          * The default sort order for this table
697          */
698         public static final String DEFAULT_SORT_ORDER = CALENDAR_DISPLAY_NAME;
699 
700         /**
701          * The name of the calendar. Column name.
702          * <P>Type: TEXT</P>
703          */
704         public static final String NAME = "name";
705 
706         /**
707          * The default location for the calendar. Column name.
708          * <P>Type: TEXT</P>
709          */
710         public static final String CALENDAR_LOCATION = "calendar_location";
711 
712         /**
713          * These fields are only writable by a sync adapter. To modify them the
714          * caller must include {@link #CALLER_IS_SYNCADAPTER},
715          * {@link #ACCOUNT_NAME}, and {@link #ACCOUNT_TYPE} in the Uri's query
716          * parameters. TODO move to provider
717          *
718          * @hide
719          */
720         public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
721             ACCOUNT_NAME,
722             ACCOUNT_TYPE,
723             _SYNC_ID,
724             DIRTY,
725             MUTATORS,
726             OWNER_ACCOUNT,
727             MAX_REMINDERS,
728             ALLOWED_REMINDERS,
729             CAN_MODIFY_TIME_ZONE,
730             CAN_ORGANIZER_RESPOND,
731             CAN_PARTIALLY_UPDATE,
732             CALENDAR_LOCATION,
733             CALENDAR_TIME_ZONE,
734             CALENDAR_ACCESS_LEVEL,
735             DELETED,
736             CAL_SYNC1,
737             CAL_SYNC2,
738             CAL_SYNC3,
739             CAL_SYNC4,
740             CAL_SYNC5,
741             CAL_SYNC6,
742             CAL_SYNC7,
743             CAL_SYNC8,
744             CAL_SYNC9,
745             CAL_SYNC10,
746         };
747     }
748 
749     /**
750      * Columns from the Attendees table that other tables join into themselves.
751      */
752     protected interface AttendeesColumns {
753 
754         /**
755          * The id of the event. Column name.
756          * <P>Type: INTEGER</P>
757          */
758         public static final String EVENT_ID = "event_id";
759 
760         /**
761          * The name of the attendee. Column name.
762          * <P>Type: STRING</P>
763          */
764         public static final String ATTENDEE_NAME = "attendeeName";
765 
766         /**
767          * The email address of the attendee. Column name.
768          * <P>Type: STRING</P>
769          */
770         public static final String ATTENDEE_EMAIL = "attendeeEmail";
771 
772         /**
773          * The relationship of the attendee to the user. Column name.
774          * <P>Type: INTEGER (one of {@link #RELATIONSHIP_ATTENDEE}, ...}.</P>
775          */
776         public static final String ATTENDEE_RELATIONSHIP = "attendeeRelationship";
777 
778         public static final int RELATIONSHIP_NONE = 0;
779         public static final int RELATIONSHIP_ATTENDEE = 1;
780         public static final int RELATIONSHIP_ORGANIZER = 2;
781         public static final int RELATIONSHIP_PERFORMER = 3;
782         public static final int RELATIONSHIP_SPEAKER = 4;
783 
784         /**
785          * The type of attendee. Column name.
786          * <P>
787          * Type: Integer (one of {@link #TYPE_NONE}, {@link #TYPE_REQUIRED},
788          * {@link #TYPE_OPTIONAL}, {@link #TYPE_RESOURCE})
789          * </P>
790          */
791         public static final String ATTENDEE_TYPE = "attendeeType";
792 
793         public static final int TYPE_NONE = 0;
794         public static final int TYPE_REQUIRED = 1;
795         public static final int TYPE_OPTIONAL = 2;
796         /**
797          * This specifies that an attendee is a resource, like a room, a
798          * cabbage, or something and not an actual person.
799          */
800         public static final int TYPE_RESOURCE = 3;
801 
802         /**
803          * The attendance status of the attendee. Column name.
804          * <P>Type: Integer (one of {@link #ATTENDEE_STATUS_ACCEPTED}, ...).</P>
805          */
806         public static final String ATTENDEE_STATUS = "attendeeStatus";
807 
808         public static final int ATTENDEE_STATUS_NONE = 0;
809         public static final int ATTENDEE_STATUS_ACCEPTED = 1;
810         public static final int ATTENDEE_STATUS_DECLINED = 2;
811         public static final int ATTENDEE_STATUS_INVITED = 3;
812         public static final int ATTENDEE_STATUS_TENTATIVE = 4;
813 
814         /**
815          * The identity of the attendee as referenced in
816          * {@link ContactsContract.CommonDataKinds.Identity#IDENTITY}.
817          * This is required only if {@link #ATTENDEE_ID_NAMESPACE} is present. Column name.
818          * <P>Type: STRING</P>
819          */
820         public static final String ATTENDEE_IDENTITY = "attendeeIdentity";
821 
822         /**
823          * The identity name space of the attendee as referenced in
824          * {@link ContactsContract.CommonDataKinds.Identity#NAMESPACE}.
825          * This is required only if {@link #ATTENDEE_IDENTITY} is present. Column name.
826          * <P>Type: STRING</P>
827          */
828         public static final String ATTENDEE_ID_NAMESPACE = "attendeeIdNamespace";
829     }
830 
831     /**
832      * Fields and helpers for interacting with Attendees. Each row of this table
833      * represents a single attendee or guest of an event. Calling
834      * {@link #query(ContentResolver, long, String[])} will return a list of attendees for
835      * the event with the given eventId. Both apps and sync adapters may write
836      * to this table. There are six writable fields and all of them except
837      * {@link #ATTENDEE_NAME} must be included when inserting a new attendee.
838      * They are:
839      * <ul>
840      * <li>{@link #EVENT_ID}</li>
841      * <li>{@link #ATTENDEE_NAME}</li>
842      * <li>{@link #ATTENDEE_EMAIL}</li>
843      * <li>{@link #ATTENDEE_RELATIONSHIP}</li>
844      * <li>{@link #ATTENDEE_TYPE}</li>
845      * <li>{@link #ATTENDEE_STATUS}</li>
846      * <li>{@link #ATTENDEE_IDENTITY}</li>
847      * <li>{@link #ATTENDEE_ID_NAMESPACE}</li>
848      * </ul>
849      */
850     public static final class Attendees implements BaseColumns, AttendeesColumns, EventsColumns {
851 
852         /**
853          * The content:// style URL for accessing Attendees data
854          */
855         @SuppressWarnings("hiding")
856         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/attendees");
857         private static final String ATTENDEES_WHERE = Attendees.EVENT_ID + "=?";
858 
859         /**
860          * This utility class cannot be instantiated
861          */
Attendees()862         private Attendees() {}
863 
864         /**
865          * Queries all attendees associated with the given event. This is a
866          * blocking call and should not be done on the UI thread.
867          *
868          * @param cr The content resolver to use for the query
869          * @param eventId The id of the event to retrieve attendees for
870          * @param projection the columns to return in the cursor
871          * @return A Cursor containing all attendees for the event
872          */
query(ContentResolver cr, long eventId, String[] projection)873         public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
874             String[] attArgs = {Long.toString(eventId)};
875             return cr.query(CONTENT_URI, projection, ATTENDEES_WHERE, attArgs /* selection args */,
876                     null /* sort order */);
877         }
878     }
879 
880     /**
881      * Columns from the Events table that other tables join into themselves.
882      */
883     protected interface EventsColumns {
884 
885         /**
886          * The {@link Calendars#_ID} of the calendar the event belongs to.
887          * Column name.
888          * <P>Type: INTEGER</P>
889          */
890         public static final String CALENDAR_ID = "calendar_id";
891 
892         /**
893          * The title of the event. Column name.
894          * <P>Type: TEXT</P>
895          */
896         public static final String TITLE = "title";
897 
898         /**
899          * The description of the event. Column name.
900          * <P>Type: TEXT</P>
901          */
902         public static final String DESCRIPTION = "description";
903 
904         /**
905          * Where the event takes place. Column name.
906          * <P>Type: TEXT</P>
907          */
908         public static final String EVENT_LOCATION = "eventLocation";
909 
910         /**
911          * A secondary color for the individual event. This should only be
912          * updated by the sync adapter for a given account.
913          * <P>Type: INTEGER</P>
914          */
915         public static final String EVENT_COLOR = "eventColor";
916 
917         /**
918          * A secondary color key for the individual event. NULL or an empty
919          * string are reserved for indicating that the event does not use a key
920          * for looking up the color. The provider will update
921          * {@link #EVENT_COLOR} automatically when a valid key is written to
922          * this column. The key must reference an existing row of the
923          * {@link Colors} table. @see Colors
924          * <P>
925          * Type: TEXT
926          * </P>
927          */
928         public static final String EVENT_COLOR_KEY = "eventColor_index";
929 
930         /**
931          * This will be {@link #EVENT_COLOR} if it is not null; otherwise, this will be
932          * {@link Calendars#CALENDAR_COLOR}.
933          * Read-only value. To modify, write to {@link #EVENT_COLOR} or
934          * {@link Calendars#CALENDAR_COLOR} directly.
935          *<P>
936          *     Type: INTEGER
937          *</P>
938          */
939         public static final String DISPLAY_COLOR = "displayColor";
940 
941         /**
942          * The event status. Column name.
943          * <P>Type: INTEGER (one of {@link #STATUS_TENTATIVE}...)</P>
944          */
945         public static final String STATUS = "eventStatus";
946 
947         public static final int STATUS_TENTATIVE = 0;
948         public static final int STATUS_CONFIRMED = 1;
949         public static final int STATUS_CANCELED = 2;
950 
951         /**
952          * This is a copy of the attendee status for the owner of this event.
953          * This field is copied here so that we can efficiently filter out
954          * events that are declined without having to look in the Attendees
955          * table. Column name.
956          *
957          * <P>Type: INTEGER (int)</P>
958          */
959         public static final String SELF_ATTENDEE_STATUS = "selfAttendeeStatus";
960 
961         /**
962          * This column is available for use by sync adapters. Column name.
963          * <P>Type: TEXT</P>
964          */
965         public static final String SYNC_DATA1 = "sync_data1";
966 
967         /**
968          * This column is available for use by sync adapters. Column name.
969          * <P>Type: TEXT</P>
970          */
971         public static final String SYNC_DATA2 = "sync_data2";
972 
973         /**
974          * This column is available for use by sync adapters. Column name.
975          * <P>Type: TEXT</P>
976          */
977         public static final String SYNC_DATA3 = "sync_data3";
978 
979         /**
980          * This column is available for use by sync adapters. Column name.
981          * <P>Type: TEXT</P>
982          */
983         public static final String SYNC_DATA4 = "sync_data4";
984 
985         /**
986          * This column is available for use by sync adapters. Column name.
987          * <P>Type: TEXT</P>
988          */
989         public static final String SYNC_DATA5 = "sync_data5";
990 
991         /**
992          * This column is available for use by sync adapters. Column name.
993          * <P>Type: TEXT</P>
994          */
995         public static final String SYNC_DATA6 = "sync_data6";
996 
997         /**
998          * This column is available for use by sync adapters. Column name.
999          * <P>Type: TEXT</P>
1000          */
1001         public static final String SYNC_DATA7 = "sync_data7";
1002 
1003         /**
1004          * This column is available for use by sync adapters. Column name.
1005          * <P>Type: TEXT</P>
1006          */
1007         public static final String SYNC_DATA8 = "sync_data8";
1008 
1009         /**
1010          * This column is available for use by sync adapters. Column name.
1011          * <P>Type: TEXT</P>
1012          */
1013         public static final String SYNC_DATA9 = "sync_data9";
1014 
1015         /**
1016          * This column is available for use by sync adapters. Column name.
1017          * <P>Type: TEXT</P>
1018          */
1019         public static final String SYNC_DATA10 = "sync_data10";
1020 
1021         /**
1022          * Used to indicate that a row is not a real event but an original copy of a locally
1023          * modified event. A copy is made when an event changes from non-dirty to dirty and the
1024          * event is on a calendar with {@link Calendars#CAN_PARTIALLY_UPDATE} set to 1. This copy
1025          * does not get expanded in the instances table and is only visible in queries made by a
1026          * sync adapter. The copy gets removed when the event is changed back to non-dirty by a
1027          * sync adapter.
1028          * <P>Type: INTEGER (boolean)</P>
1029          */
1030         public static final String LAST_SYNCED = "lastSynced";
1031 
1032         /**
1033          * The time the event starts in UTC millis since epoch. Column name.
1034          * <P>Type: INTEGER (long; millis since epoch)</P>
1035          */
1036         public static final String DTSTART = "dtstart";
1037 
1038         /**
1039          * The time the event ends in UTC millis since epoch. Column name.
1040          * <P>Type: INTEGER (long; millis since epoch)</P>
1041          */
1042         public static final String DTEND = "dtend";
1043 
1044         /**
1045          * The duration of the event in RFC2445 format. Column name.
1046          * <P>Type: TEXT (duration in RFC2445 format)</P>
1047          */
1048         public static final String DURATION = "duration";
1049 
1050         /**
1051          * The timezone for the event. Column name.
1052          * <P>Type: TEXT</P>
1053          */
1054         public static final String EVENT_TIMEZONE = "eventTimezone";
1055 
1056         /**
1057          * The timezone for the end time of the event. Column name.
1058          * <P>Type: TEXT</P>
1059          */
1060         public static final String EVENT_END_TIMEZONE = "eventEndTimezone";
1061 
1062         /**
1063          * Is the event all day (time zone independent). Column name.
1064          * <P>Type: INTEGER (boolean)</P>
1065          */
1066         public static final String ALL_DAY = "allDay";
1067 
1068         /**
1069          * Defines how the event shows up for others when the calendar is
1070          * shared. Column name.
1071          * <P>Type: INTEGER (One of {@link #ACCESS_DEFAULT}, ...)</P>
1072          */
1073         public static final String ACCESS_LEVEL = "accessLevel";
1074 
1075         /**
1076          * Default access is controlled by the server and will be treated as
1077          * public on the device.
1078          */
1079         public static final int ACCESS_DEFAULT = 0;
1080         /**
1081          * Confidential is not used by the app.
1082          */
1083         public static final int ACCESS_CONFIDENTIAL = 1;
1084         /**
1085          * Private shares the event as a free/busy slot with no details.
1086          */
1087         public static final int ACCESS_PRIVATE = 2;
1088         /**
1089          * Public makes the contents visible to anyone with access to the
1090          * calendar.
1091          */
1092         public static final int ACCESS_PUBLIC = 3;
1093 
1094         /**
1095          * If this event counts as busy time or is still free time that can be
1096          * scheduled over. Column name.
1097          * <P>
1098          * Type: INTEGER (One of {@link #AVAILABILITY_BUSY},
1099          * {@link #AVAILABILITY_FREE}, {@link #AVAILABILITY_TENTATIVE})
1100          * </P>
1101          */
1102         public static final String AVAILABILITY = "availability";
1103 
1104         /**
1105          * Indicates that this event takes up time and will conflict with other
1106          * events.
1107          */
1108         public static final int AVAILABILITY_BUSY = 0;
1109         /**
1110          * Indicates that this event is free time and will not conflict with
1111          * other events.
1112          */
1113         public static final int AVAILABILITY_FREE = 1;
1114         /**
1115          * Indicates that the owner's availability may change, but should be
1116          * considered busy time that will conflict.
1117          */
1118         public static final int AVAILABILITY_TENTATIVE = 2;
1119 
1120         /**
1121          * Whether the event has an alarm or not. Column name.
1122          * <P>Type: INTEGER (boolean)</P>
1123          */
1124         public static final String HAS_ALARM = "hasAlarm";
1125 
1126         /**
1127          * Whether the event has extended properties or not. Column name.
1128          * <P>Type: INTEGER (boolean)</P>
1129          */
1130         public static final String HAS_EXTENDED_PROPERTIES = "hasExtendedProperties";
1131 
1132         /**
1133          * The recurrence rule for the event. Column name.
1134          * <P>Type: TEXT</P>
1135          */
1136         public static final String RRULE = "rrule";
1137 
1138         /**
1139          * The recurrence dates for the event. Column name.
1140          * <P>Type: TEXT</P>
1141          */
1142         public static final String RDATE = "rdate";
1143 
1144         /**
1145          * The recurrence exception rule for the event. Column name.
1146          * <P>Type: TEXT</P>
1147          */
1148         public static final String EXRULE = "exrule";
1149 
1150         /**
1151          * The recurrence exception dates for the event. Column name.
1152          * <P>Type: TEXT</P>
1153          */
1154         public static final String EXDATE = "exdate";
1155 
1156         /**
1157          * The {@link Events#_ID} of the original recurring event for which this
1158          * event is an exception. Column name.
1159          * <P>Type: TEXT</P>
1160          */
1161         public static final String ORIGINAL_ID = "original_id";
1162 
1163         /**
1164          * The _sync_id of the original recurring event for which this event is
1165          * an exception. The provider should keep the original_id in sync when
1166          * this is updated. Column name.
1167          * <P>Type: TEXT</P>
1168          */
1169         public static final String ORIGINAL_SYNC_ID = "original_sync_id";
1170 
1171         /**
1172          * The original instance time of the recurring event for which this
1173          * event is an exception. Column name.
1174          * <P>Type: INTEGER (long; millis since epoch)</P>
1175          */
1176         public static final String ORIGINAL_INSTANCE_TIME = "originalInstanceTime";
1177 
1178         /**
1179          * The allDay status (true or false) of the original recurring event
1180          * for which this event is an exception. Column name.
1181          * <P>Type: INTEGER (boolean)</P>
1182          */
1183         public static final String ORIGINAL_ALL_DAY = "originalAllDay";
1184 
1185         /**
1186          * The last date this event repeats on, or NULL if it never ends. Column
1187          * name.
1188          * <P>Type: INTEGER (long; millis since epoch)</P>
1189          */
1190         public static final String LAST_DATE = "lastDate";
1191 
1192         /**
1193          * Whether the event has attendee information.  True if the event
1194          * has full attendee data, false if the event has information about
1195          * self only. Column name.
1196          * <P>Type: INTEGER (boolean)</P>
1197          */
1198         public static final String HAS_ATTENDEE_DATA = "hasAttendeeData";
1199 
1200         /**
1201          * Whether guests can modify the event. Column name.
1202          * <P>Type: INTEGER (boolean)</P>
1203          */
1204         public static final String GUESTS_CAN_MODIFY = "guestsCanModify";
1205 
1206         /**
1207          * Whether guests can invite other guests. Column name.
1208          * <P>Type: INTEGER (boolean)</P>
1209          */
1210         public static final String GUESTS_CAN_INVITE_OTHERS = "guestsCanInviteOthers";
1211 
1212         /**
1213          * Whether guests can see the list of attendees. Column name.
1214          * <P>Type: INTEGER (boolean)</P>
1215          */
1216         public static final String GUESTS_CAN_SEE_GUESTS = "guestsCanSeeGuests";
1217 
1218         /**
1219          * Email of the organizer (owner) of the event. Column name.
1220          * <P>Type: STRING</P>
1221          */
1222         public static final String ORGANIZER = "organizer";
1223 
1224         /**
1225          * Are we the organizer of this event. If this column is not explicitly set, the provider
1226          * will return 1 if {@link #ORGANIZER} is equal to {@link Calendars#OWNER_ACCOUNT}.
1227          * Column name.
1228          * <P>Type: STRING</P>
1229          */
1230         public static final String IS_ORGANIZER = "isOrganizer";
1231 
1232         /**
1233          * Whether the user can invite others to the event. The
1234          * GUESTS_CAN_INVITE_OTHERS is a setting that applies to an arbitrary
1235          * guest, while CAN_INVITE_OTHERS indicates if the user can invite
1236          * others (either through GUESTS_CAN_INVITE_OTHERS or because the user
1237          * has modify access to the event). Column name.
1238          * <P>Type: INTEGER (boolean, readonly)</P>
1239          */
1240         public static final String CAN_INVITE_OTHERS = "canInviteOthers";
1241 
1242         /**
1243          * The package name of the custom app that can provide a richer
1244          * experience for the event. See the ACTION TYPE
1245          * {@link CalendarContract#ACTION_HANDLE_CUSTOM_EVENT} for details.
1246          * Column name.
1247          * <P> Type: TEXT </P>
1248          */
1249         public static final String CUSTOM_APP_PACKAGE = "customAppPackage";
1250 
1251         /**
1252          * The URI used by the custom app for the event. Column name.
1253          * <P>Type: TEXT</P>
1254          */
1255         public static final String CUSTOM_APP_URI = "customAppUri";
1256 
1257         /**
1258          * The UID for events added from the RFC 2445 iCalendar format.
1259          * Column name.
1260          * <P>Type: TEXT</P>
1261          */
1262         public static final String UID_2445 = "uid2445";
1263     }
1264 
1265     /**
1266      * Class that represents an Event Entity. There is one entry per event.
1267      * Recurring events show up as a single entry. This is a helper class to
1268      * make batch operations easier. A {@link ContentResolver} or
1269      * {@link ContentProviderClient} is required as the helper does additional
1270      * queries to add reminders and attendees to each entry.
1271      */
1272     public static final class EventsEntity implements BaseColumns, SyncColumns, EventsColumns {
1273         /**
1274          * The content:// style URL for this table
1275          */
1276         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1277                 "/event_entities");
1278 
1279         /**
1280          * This utility class cannot be instantiated
1281          */
EventsEntity()1282         private EventsEntity() {}
1283 
1284         /**
1285          * Creates a new iterator for events
1286          *
1287          * @param cursor An event query
1288          * @param resolver For performing additional queries
1289          * @return an EntityIterator containing one entity per event in the
1290          *         cursor
1291          */
newEntityIterator(Cursor cursor, ContentResolver resolver)1292         public static EntityIterator newEntityIterator(Cursor cursor, ContentResolver resolver) {
1293             return new EntityIteratorImpl(cursor, resolver);
1294         }
1295 
1296         /**
1297          * Creates a new iterator for events
1298          *
1299          * @param cursor An event query
1300          * @param provider For performing additional queries
1301          * @return an EntityIterator containing one entity per event in the
1302          *         cursor
1303          */
newEntityIterator(Cursor cursor, ContentProviderClient provider)1304         public static EntityIterator newEntityIterator(Cursor cursor,
1305                 ContentProviderClient provider) {
1306             return new EntityIteratorImpl(cursor, provider);
1307         }
1308 
1309         private static class EntityIteratorImpl extends CursorEntityIterator {
1310             private final ContentResolver mResolver;
1311             private final ContentProviderClient mProvider;
1312 
1313             private static final String[] REMINDERS_PROJECTION = new String[] {
1314                     Reminders.MINUTES,
1315                     Reminders.METHOD,
1316             };
1317             private static final int COLUMN_MINUTES = 0;
1318             private static final int COLUMN_METHOD = 1;
1319 
1320             private static final String[] ATTENDEES_PROJECTION = new String[] {
1321                     Attendees.ATTENDEE_NAME,
1322                     Attendees.ATTENDEE_EMAIL,
1323                     Attendees.ATTENDEE_RELATIONSHIP,
1324                     Attendees.ATTENDEE_TYPE,
1325                     Attendees.ATTENDEE_STATUS,
1326                     Attendees.ATTENDEE_IDENTITY,
1327                     Attendees.ATTENDEE_ID_NAMESPACE
1328             };
1329             private static final int COLUMN_ATTENDEE_NAME = 0;
1330             private static final int COLUMN_ATTENDEE_EMAIL = 1;
1331             private static final int COLUMN_ATTENDEE_RELATIONSHIP = 2;
1332             private static final int COLUMN_ATTENDEE_TYPE = 3;
1333             private static final int COLUMN_ATTENDEE_STATUS = 4;
1334             private static final int COLUMN_ATTENDEE_IDENTITY = 5;
1335             private static final int COLUMN_ATTENDEE_ID_NAMESPACE = 6;
1336 
1337             private static final String[] EXTENDED_PROJECTION = new String[] {
1338                     ExtendedProperties._ID,
1339                     ExtendedProperties.NAME,
1340                     ExtendedProperties.VALUE
1341             };
1342             private static final int COLUMN_ID = 0;
1343             private static final int COLUMN_NAME = 1;
1344             private static final int COLUMN_VALUE = 2;
1345 
1346             private static final String WHERE_EVENT_ID = "event_id=?";
1347 
EntityIteratorImpl(Cursor cursor, ContentResolver resolver)1348             public EntityIteratorImpl(Cursor cursor, ContentResolver resolver) {
1349                 super(cursor);
1350                 mResolver = resolver;
1351                 mProvider = null;
1352             }
1353 
EntityIteratorImpl(Cursor cursor, ContentProviderClient provider)1354             public EntityIteratorImpl(Cursor cursor, ContentProviderClient provider) {
1355                 super(cursor);
1356                 mResolver = null;
1357                 mProvider = provider;
1358             }
1359 
1360             @Override
getEntityAndIncrementCursor(Cursor cursor)1361             public Entity getEntityAndIncrementCursor(Cursor cursor) throws RemoteException {
1362                 // we expect the cursor is already at the row we need to read from
1363                 final long eventId = cursor.getLong(cursor.getColumnIndexOrThrow(Events._ID));
1364                 ContentValues cv = new ContentValues();
1365                 cv.put(Events._ID, eventId);
1366                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, CALENDAR_ID);
1367                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, TITLE);
1368                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DESCRIPTION);
1369                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_LOCATION);
1370                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, STATUS);
1371                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, SELF_ATTENDEE_STATUS);
1372                 DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTSTART);
1373                 DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DTEND);
1374                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, DURATION);
1375                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_TIMEZONE);
1376                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_END_TIMEZONE);
1377                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ALL_DAY);
1378                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ACCESS_LEVEL);
1379                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, AVAILABILITY);
1380                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, EVENT_COLOR);
1381                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EVENT_COLOR_KEY);
1382                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, HAS_ALARM);
1383                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv,
1384                         HAS_EXTENDED_PROPERTIES);
1385                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RRULE);
1386                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, RDATE);
1387                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXRULE);
1388                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, EXDATE);
1389                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_SYNC_ID);
1390                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORIGINAL_ID);
1391                 DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv,
1392                         ORIGINAL_INSTANCE_TIME);
1393                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, ORIGINAL_ALL_DAY);
1394                 DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_DATE);
1395                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, HAS_ATTENDEE_DATA);
1396                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv,
1397                         GUESTS_CAN_INVITE_OTHERS);
1398                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_MODIFY);
1399                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, GUESTS_CAN_SEE_GUESTS);
1400                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CUSTOM_APP_PACKAGE);
1401                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CUSTOM_APP_URI);
1402                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, UID_2445);
1403                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, ORGANIZER);
1404                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, IS_ORGANIZER);
1405                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, _SYNC_ID);
1406                 DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, DIRTY);
1407                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, MUTATORS);
1408                 DatabaseUtils.cursorLongToContentValuesIfPresent(cursor, cv, LAST_SYNCED);
1409                 DatabaseUtils.cursorIntToContentValuesIfPresent(cursor, cv, DELETED);
1410                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA1);
1411                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA2);
1412                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA3);
1413                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA4);
1414                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA5);
1415                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA6);
1416                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA7);
1417                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA8);
1418                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA9);
1419                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, SYNC_DATA10);
1420                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC1);
1421                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC2);
1422                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC3);
1423                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC4);
1424                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC5);
1425                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC6);
1426                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC7);
1427                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC8);
1428                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC9);
1429                 DatabaseUtils.cursorStringToContentValuesIfPresent(cursor, cv, CAL_SYNC10);
1430 
1431                 Entity entity = new Entity(cv);
1432                 Cursor subCursor;
1433                 if (mResolver != null) {
1434                     subCursor = mResolver.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1435                             WHERE_EVENT_ID,
1436                             new String[] { Long.toString(eventId) }  /* selectionArgs */,
1437                             null /* sortOrder */);
1438                 } else {
1439                     subCursor = mProvider.query(Reminders.CONTENT_URI, REMINDERS_PROJECTION,
1440                             WHERE_EVENT_ID,
1441                             new String[] { Long.toString(eventId) }  /* selectionArgs */,
1442                             null /* sortOrder */);
1443                 }
1444                 try {
1445                     while (subCursor.moveToNext()) {
1446                         ContentValues reminderValues = new ContentValues();
1447                         reminderValues.put(Reminders.MINUTES, subCursor.getInt(COLUMN_MINUTES));
1448                         reminderValues.put(Reminders.METHOD, subCursor.getInt(COLUMN_METHOD));
1449                         entity.addSubValue(Reminders.CONTENT_URI, reminderValues);
1450                     }
1451                 } finally {
1452                     subCursor.close();
1453                 }
1454 
1455                 if (mResolver != null) {
1456                     subCursor = mResolver.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1457                             WHERE_EVENT_ID,
1458                             new String[] { Long.toString(eventId) } /* selectionArgs */,
1459                             null /* sortOrder */);
1460                 } else {
1461                     subCursor = mProvider.query(Attendees.CONTENT_URI, ATTENDEES_PROJECTION,
1462                             WHERE_EVENT_ID,
1463                             new String[] { Long.toString(eventId) } /* selectionArgs */,
1464                             null /* sortOrder */);
1465                 }
1466                 try {
1467                     while (subCursor.moveToNext()) {
1468                         ContentValues attendeeValues = new ContentValues();
1469                         attendeeValues.put(Attendees.ATTENDEE_NAME,
1470                                 subCursor.getString(COLUMN_ATTENDEE_NAME));
1471                         attendeeValues.put(Attendees.ATTENDEE_EMAIL,
1472                                 subCursor.getString(COLUMN_ATTENDEE_EMAIL));
1473                         attendeeValues.put(Attendees.ATTENDEE_RELATIONSHIP,
1474                                 subCursor.getInt(COLUMN_ATTENDEE_RELATIONSHIP));
1475                         attendeeValues.put(Attendees.ATTENDEE_TYPE,
1476                                 subCursor.getInt(COLUMN_ATTENDEE_TYPE));
1477                         attendeeValues.put(Attendees.ATTENDEE_STATUS,
1478                                 subCursor.getInt(COLUMN_ATTENDEE_STATUS));
1479                         attendeeValues.put(Attendees.ATTENDEE_IDENTITY,
1480                                 subCursor.getString(COLUMN_ATTENDEE_IDENTITY));
1481                         attendeeValues.put(Attendees.ATTENDEE_ID_NAMESPACE,
1482                                 subCursor.getString(COLUMN_ATTENDEE_ID_NAMESPACE));
1483                         entity.addSubValue(Attendees.CONTENT_URI, attendeeValues);
1484                     }
1485                 } finally {
1486                     subCursor.close();
1487                 }
1488 
1489                 if (mResolver != null) {
1490                     subCursor = mResolver.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1491                             WHERE_EVENT_ID,
1492                             new String[] { Long.toString(eventId) } /* selectionArgs */,
1493                             null /* sortOrder */);
1494                 } else {
1495                     subCursor = mProvider.query(ExtendedProperties.CONTENT_URI, EXTENDED_PROJECTION,
1496                             WHERE_EVENT_ID,
1497                             new String[] { Long.toString(eventId) } /* selectionArgs */,
1498                             null /* sortOrder */);
1499                 }
1500                 try {
1501                     while (subCursor.moveToNext()) {
1502                         ContentValues extendedValues = new ContentValues();
1503                         extendedValues.put(ExtendedProperties._ID,
1504                                 subCursor.getString(COLUMN_ID));
1505                         extendedValues.put(ExtendedProperties.NAME,
1506                                 subCursor.getString(COLUMN_NAME));
1507                         extendedValues.put(ExtendedProperties.VALUE,
1508                                 subCursor.getString(COLUMN_VALUE));
1509                         entity.addSubValue(ExtendedProperties.CONTENT_URI, extendedValues);
1510                     }
1511                 } finally {
1512                     subCursor.close();
1513                 }
1514 
1515                 cursor.moveToNext();
1516                 return entity;
1517             }
1518         }
1519     }
1520 
1521     /**
1522      * Constants and helpers for the Events table, which contains details for
1523      * individual events. <h3>Operations</h3> All operations can be done either
1524      * as an app or as a sync adapter. To perform an operation as a sync adapter
1525      * {@link #CALLER_IS_SYNCADAPTER} should be set to true and
1526      * {@link #ACCOUNT_NAME} and {@link #ACCOUNT_TYPE} must be set in the Uri
1527      * parameters. See
1528      * {@link Uri.Builder#appendQueryParameter(java.lang.String, java.lang.String)}
1529      * for details on adding parameters. Sync adapters have write access to more
1530      * columns but are restricted to a single account at a time.
1531      * <dl>
1532      * <dt><b>Insert</b></dt>
1533      * <dd>When inserting a new event the following fields must be included:
1534      * <ul>
1535      * <li>dtstart</li>
1536      * <li>dtend if the event is non-recurring</li>
1537      * <li>duration if the event is recurring</li>
1538      * <li>rrule or rdate if the event is recurring</li>
1539      * <li>eventTimezone</li>
1540      * <li>a calendar_id</li>
1541      * </ul>
1542      * There are also further requirements when inserting or updating an event.
1543      * See the section on Writing to Events.</dd>
1544      * <dt><b>Update</b></dt>
1545      * <dd>To perform an update of an Event the {@link Events#_ID} of the event
1546      * should be provided either as an appended id to the Uri (
1547      * {@link ContentUris#withAppendedId}) or as the first selection item--the
1548      * selection should start with "_id=?" and the first selectionArg should be
1549      * the _id of the event. Updates may also be done using a selection and no
1550      * id. Updating an event must respect the same rules as inserting and is
1551      * further restricted in the fields that can be written. See the section on
1552      * Writing to Events.</dd>
1553      * <dt><b>Delete</b></dt>
1554      * <dd>Events can be deleted either by the {@link Events#_ID} as an appended
1555      * id on the Uri or using any standard selection. If an appended id is used
1556      * a selection is not allowed. There are two versions of delete: as an app
1557      * and as a sync adapter. An app delete will set the deleted column on an
1558      * event and remove all instances of that event. A sync adapter delete will
1559      * remove the event from the database and all associated data.</dd>
1560      * <dt><b>Query</b></dt>
1561      * <dd>Querying the Events table will get you all information about a set of
1562      * events except their reminders, attendees, and extended properties. There
1563      * will be one row returned for each event that matches the query selection,
1564      * or at most a single row if the {@link Events#_ID} is appended to the Uri.
1565      * Recurring events will only return a single row regardless of the number
1566      * of times that event repeats.</dd>
1567      * </dl>
1568      * <h3>Writing to Events</h3> There are further restrictions on all Updates
1569      * and Inserts in the Events table:
1570      * <ul>
1571      * <li>If allDay is set to 1 eventTimezone must be {@link Time#TIMEZONE_UTC}
1572      * and the time must correspond to a midnight boundary.</li>
1573      * <li>Exceptions are not allowed to recur. If rrule or rdate is not empty,
1574      * original_id and original_sync_id must be empty.</li>
1575      * <li>In general a calendar_id should not be modified after insertion. This
1576      * is not explicitly forbidden but many sync adapters will not behave in an
1577      * expected way if the calendar_id is modified.</li>
1578      * </ul>
1579      * The following Events columns are writable by both an app and a sync
1580      * adapter.
1581      * <ul>
1582      * <li>{@link #CALENDAR_ID}</li>
1583      * <li>{@link #ORGANIZER}</li>
1584      * <li>{@link #TITLE}</li>
1585      * <li>{@link #EVENT_LOCATION}</li>
1586      * <li>{@link #DESCRIPTION}</li>
1587      * <li>{@link #EVENT_COLOR}</li>
1588      * <li>{@link #DTSTART}</li>
1589      * <li>{@link #DTEND}</li>
1590      * <li>{@link #EVENT_TIMEZONE}</li>
1591      * <li>{@link #EVENT_END_TIMEZONE}</li>
1592      * <li>{@link #DURATION}</li>
1593      * <li>{@link #ALL_DAY}</li>
1594      * <li>{@link #RRULE}</li>
1595      * <li>{@link #RDATE}</li>
1596      * <li>{@link #EXRULE}</li>
1597      * <li>{@link #EXDATE}</li>
1598      * <li>{@link #ORIGINAL_ID}</li>
1599      * <li>{@link #ORIGINAL_SYNC_ID}</li>
1600      * <li>{@link #ORIGINAL_INSTANCE_TIME}</li>
1601      * <li>{@link #ORIGINAL_ALL_DAY}</li>
1602      * <li>{@link #ACCESS_LEVEL}</li>
1603      * <li>{@link #AVAILABILITY}</li>
1604      * <li>{@link #GUESTS_CAN_MODIFY}</li>
1605      * <li>{@link #GUESTS_CAN_INVITE_OTHERS}</li>
1606      * <li>{@link #GUESTS_CAN_SEE_GUESTS}</li>
1607      * <li>{@link #CUSTOM_APP_PACKAGE}</li>
1608      * <li>{@link #CUSTOM_APP_URI}</li>
1609      * <li>{@link #UID_2445}</li>
1610      * </ul>
1611      * The following Events columns are writable only by a sync adapter
1612      * <ul>
1613      * <li>{@link #DIRTY}</li>
1614      * <li>{@link #MUTATORS}</li>
1615      * <li>{@link #_SYNC_ID}</li>
1616      * <li>{@link #SYNC_DATA1}</li>
1617      * <li>{@link #SYNC_DATA2}</li>
1618      * <li>{@link #SYNC_DATA3}</li>
1619      * <li>{@link #SYNC_DATA4}</li>
1620      * <li>{@link #SYNC_DATA5}</li>
1621      * <li>{@link #SYNC_DATA6}</li>
1622      * <li>{@link #SYNC_DATA7}</li>
1623      * <li>{@link #SYNC_DATA8}</li>
1624      * <li>{@link #SYNC_DATA9}</li>
1625      * <li>{@link #SYNC_DATA10}</li>
1626      * </ul>
1627      * The remaining columns are either updated by the provider only or are
1628      * views into other tables and cannot be changed through the Events table.
1629      */
1630     public static final class Events implements BaseColumns, SyncColumns, EventsColumns,
1631             CalendarColumns {
1632 
1633         /**
1634          * The content:// style URL for interacting with events. Appending an
1635          * event id using {@link ContentUris#withAppendedId(Uri, long)} will
1636          * specify a single event.
1637          */
1638         @SuppressWarnings("hiding")
1639         public static final Uri CONTENT_URI =
1640                 Uri.parse("content://" + AUTHORITY + "/events");
1641 
1642         /**
1643          * The content:// style URI for recurring event exceptions.  Insertions require an
1644          * appended event ID.  Deletion of exceptions requires both the original event ID and
1645          * the exception event ID (see {@link Uri.Builder#appendPath}).
1646          */
1647         public static final Uri CONTENT_EXCEPTION_URI =
1648                 Uri.parse("content://" + AUTHORITY + "/exception");
1649 
1650         /**
1651          * This utility class cannot be instantiated
1652          */
Events()1653         private Events() {}
1654 
1655         /**
1656          * The default sort order for this table
1657          */
1658         private static final String DEFAULT_SORT_ORDER = "";
1659 
1660         /**
1661          * These are columns that should only ever be updated by the provider,
1662          * either because they are views mapped to another table or because they
1663          * are used for provider only functionality. TODO move to provider
1664          *
1665          * @hide
1666          */
1667         public static String[] PROVIDER_WRITABLE_COLUMNS = new String[] {
1668                 ACCOUNT_NAME,
1669                 ACCOUNT_TYPE,
1670                 CAL_SYNC1,
1671                 CAL_SYNC2,
1672                 CAL_SYNC3,
1673                 CAL_SYNC4,
1674                 CAL_SYNC5,
1675                 CAL_SYNC6,
1676                 CAL_SYNC7,
1677                 CAL_SYNC8,
1678                 CAL_SYNC9,
1679                 CAL_SYNC10,
1680                 ALLOWED_REMINDERS,
1681                 ALLOWED_ATTENDEE_TYPES,
1682                 ALLOWED_AVAILABILITY,
1683                 CALENDAR_ACCESS_LEVEL,
1684                 CALENDAR_COLOR,
1685                 CALENDAR_TIME_ZONE,
1686                 CAN_MODIFY_TIME_ZONE,
1687                 CAN_ORGANIZER_RESPOND,
1688                 CALENDAR_DISPLAY_NAME,
1689                 CAN_PARTIALLY_UPDATE,
1690                 SYNC_EVENTS,
1691                 VISIBLE,
1692         };
1693 
1694         /**
1695          * These fields are only writable by a sync adapter. To modify them the
1696          * caller must include CALLER_IS_SYNCADAPTER, _SYNC_ACCOUNT, and
1697          * _SYNC_ACCOUNT_TYPE in the query parameters. TODO move to provider.
1698          *
1699          * @hide
1700          */
1701         public static final String[] SYNC_WRITABLE_COLUMNS = new String[] {
1702             _SYNC_ID,
1703             DIRTY,
1704             MUTATORS,
1705             SYNC_DATA1,
1706             SYNC_DATA2,
1707             SYNC_DATA3,
1708             SYNC_DATA4,
1709             SYNC_DATA5,
1710             SYNC_DATA6,
1711             SYNC_DATA7,
1712             SYNC_DATA8,
1713             SYNC_DATA9,
1714             SYNC_DATA10,
1715         };
1716     }
1717 
1718     /**
1719      * Fields and helpers for interacting with Instances. An instance is a
1720      * single occurrence of an event including time zone specific start and end
1721      * days and minutes. The instances table is not writable and only provides a
1722      * way to query event occurrences.
1723      */
1724     public static final class Instances implements BaseColumns, EventsColumns, CalendarColumns {
1725 
1726         private static final String WHERE_CALENDARS_SELECTED = Calendars.VISIBLE + "=?";
1727         private static final String[] WHERE_CALENDARS_ARGS = {
1728             "1"
1729         };
1730 
1731         /**
1732          * This utility class cannot be instantiated
1733          */
Instances()1734         private Instances() {}
1735 
1736         /**
1737          * Performs a query to return all visible instances in the given range.
1738          * This is a blocking function and should not be done on the UI thread.
1739          * This will cause an expansion of recurring events to fill this time
1740          * range if they are not already expanded and will slow down for larger
1741          * time ranges with many recurring events.
1742          *
1743          * @param cr The ContentResolver to use for the query
1744          * @param projection The columns to return
1745          * @param begin The start of the time range to query in UTC millis since
1746          *            epoch
1747          * @param end The end of the time range to query in UTC millis since
1748          *            epoch
1749          * @return A Cursor containing all instances in the given range
1750          */
query(ContentResolver cr, String[] projection, long begin, long end)1751         public static final Cursor query(ContentResolver cr, String[] projection,
1752                                          long begin, long end) {
1753             Uri.Builder builder = CONTENT_URI.buildUpon();
1754             ContentUris.appendId(builder, begin);
1755             ContentUris.appendId(builder, end);
1756             return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1757                     WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1758         }
1759 
1760         /**
1761          * Performs a query to return all visible instances in the given range
1762          * that match the given query. This is a blocking function and should
1763          * not be done on the UI thread. This will cause an expansion of
1764          * recurring events to fill this time range if they are not already
1765          * expanded and will slow down for larger time ranges with many
1766          * recurring events.
1767          *
1768          * @param cr The ContentResolver to use for the query
1769          * @param projection The columns to return
1770          * @param begin The start of the time range to query in UTC millis since
1771          *            epoch
1772          * @param end The end of the time range to query in UTC millis since
1773          *            epoch
1774          * @param searchQuery A string of space separated search terms. Segments
1775          *            enclosed by double quotes will be treated as a single
1776          *            term.
1777          * @return A Cursor of instances matching the search terms in the given
1778          *         time range
1779          */
query(ContentResolver cr, String[] projection, long begin, long end, String searchQuery)1780         public static final Cursor query(ContentResolver cr, String[] projection,
1781                                          long begin, long end, String searchQuery) {
1782             Uri.Builder builder = CONTENT_SEARCH_URI.buildUpon();
1783             ContentUris.appendId(builder, begin);
1784             ContentUris.appendId(builder, end);
1785             builder = builder.appendPath(searchQuery);
1786             return cr.query(builder.build(), projection, WHERE_CALENDARS_SELECTED,
1787                     WHERE_CALENDARS_ARGS, DEFAULT_SORT_ORDER);
1788         }
1789 
1790         /**
1791          * The content:// style URL for querying an instance range. The begin
1792          * and end of the range to query should be added as path segments if
1793          * this is used directly.
1794          */
1795         @SuppressWarnings("hiding")
1796         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
1797                 "/instances/when");
1798         /**
1799          * The content:// style URL for querying an instance range by Julian
1800          * Day. The start and end day should be added as path segments if this
1801          * is used directly.
1802          */
1803         public static final Uri CONTENT_BY_DAY_URI =
1804             Uri.parse("content://" + AUTHORITY + "/instances/whenbyday");
1805         /**
1806          * The content:// style URL for querying an instance range with a search
1807          * term. The begin, end, and search string should be appended as path
1808          * segments if this is used directly.
1809          */
1810         public static final Uri CONTENT_SEARCH_URI = Uri.parse("content://" + AUTHORITY +
1811                 "/instances/search");
1812         /**
1813          * The content:// style URL for querying an instance range with a search
1814          * term. The start day, end day, and search string should be appended as
1815          * path segments if this is used directly.
1816          */
1817         public static final Uri CONTENT_SEARCH_BY_DAY_URI =
1818             Uri.parse("content://" + AUTHORITY + "/instances/searchbyday");
1819 
1820         /**
1821          * The default sort order for this table.
1822          */
1823         private static final String DEFAULT_SORT_ORDER = "begin ASC";
1824 
1825         /**
1826          * The beginning time of the instance, in UTC milliseconds. Column name.
1827          * <P>Type: INTEGER (long; millis since epoch)</P>
1828          */
1829         public static final String BEGIN = "begin";
1830 
1831         /**
1832          * The ending time of the instance, in UTC milliseconds. Column name.
1833          * <P>Type: INTEGER (long; millis since epoch)</P>
1834          */
1835         public static final String END = "end";
1836 
1837         /**
1838          * The _id of the event for this instance. Column name.
1839          * <P>Type: INTEGER (long, foreign key to the Events table)</P>
1840          */
1841         public static final String EVENT_ID = "event_id";
1842 
1843         /**
1844          * The Julian start day of the instance, relative to the local time
1845          * zone. Column name.
1846          * <P>Type: INTEGER (int)</P>
1847          */
1848         public static final String START_DAY = "startDay";
1849 
1850         /**
1851          * The Julian end day of the instance, relative to the local time
1852          * zone. Column name.
1853          * <P>Type: INTEGER (int)</P>
1854          */
1855         public static final String END_DAY = "endDay";
1856 
1857         /**
1858          * The start minute of the instance measured from midnight in the
1859          * local time zone. Column name.
1860          * <P>Type: INTEGER (int)</P>
1861          */
1862         public static final String START_MINUTE = "startMinute";
1863 
1864         /**
1865          * The end minute of the instance measured from midnight in the
1866          * local time zone. Column name.
1867          * <P>Type: INTEGER (int)</P>
1868          */
1869         public static final String END_MINUTE = "endMinute";
1870     }
1871 
1872     protected interface CalendarCacheColumns {
1873         /**
1874          * The key for the setting. Keys are defined in {@link CalendarCache}.
1875          */
1876         public static final String KEY = "key";
1877 
1878         /**
1879          * The value of the given setting.
1880          */
1881         public static final String VALUE = "value";
1882     }
1883 
1884     /**
1885      * CalendarCache stores some settings for calendar including the current
1886      * time zone for the instances. These settings are stored using a key/value
1887      * scheme. A {@link #KEY} must be specified when updating these values.
1888      */
1889     public static final class CalendarCache implements CalendarCacheColumns {
1890         /**
1891          * The URI to use for retrieving the properties from the Calendar db.
1892          */
1893         public static final Uri URI =
1894                 Uri.parse("content://" + AUTHORITY + "/properties");
1895 
1896         /**
1897          * This utility class cannot be instantiated
1898          */
CalendarCache()1899         private CalendarCache() {}
1900 
1901         /**
1902          * They key for updating the use of auto/home time zones in Calendar.
1903          * Valid values are {@link #TIMEZONE_TYPE_AUTO} or
1904          * {@link #TIMEZONE_TYPE_HOME}.
1905          */
1906         public static final String KEY_TIMEZONE_TYPE = "timezoneType";
1907 
1908         /**
1909          * The key for updating the time zone used by the provider when it
1910          * generates the instances table. This should only be written if the
1911          * type is set to {@link #TIMEZONE_TYPE_HOME}. A valid time zone id
1912          * should be written to this field.
1913          */
1914         public static final String KEY_TIMEZONE_INSTANCES = "timezoneInstances";
1915 
1916         /**
1917          * The key for reading the last time zone set by the user. This should
1918          * only be read by apps and it will be automatically updated whenever
1919          * {@link #KEY_TIMEZONE_INSTANCES} is updated with
1920          * {@link #TIMEZONE_TYPE_HOME} set.
1921          */
1922         public static final String KEY_TIMEZONE_INSTANCES_PREVIOUS = "timezoneInstancesPrevious";
1923 
1924         /**
1925          * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1926          * should stay in sync with the device's time zone.
1927          */
1928         public static final String TIMEZONE_TYPE_AUTO = "auto";
1929 
1930         /**
1931          * The value to write to {@link #KEY_TIMEZONE_TYPE} if the provider
1932          * should use a fixed time zone set by the user.
1933          */
1934         public static final String TIMEZONE_TYPE_HOME = "home";
1935     }
1936 
1937     /**
1938      * A few Calendar globals are needed in the CalendarProvider for expanding
1939      * the Instances table and these are all stored in the first (and only) row
1940      * of the CalendarMetaData table.
1941      *
1942      * @hide
1943      */
1944     protected interface CalendarMetaDataColumns {
1945         /**
1946          * The local timezone that was used for precomputing the fields
1947          * in the Instances table.
1948          */
1949         public static final String LOCAL_TIMEZONE = "localTimezone";
1950 
1951         /**
1952          * The minimum time used in expanding the Instances table,
1953          * in UTC milliseconds.
1954          * <P>Type: INTEGER</P>
1955          */
1956         public static final String MIN_INSTANCE = "minInstance";
1957 
1958         /**
1959          * The maximum time used in expanding the Instances table,
1960          * in UTC milliseconds.
1961          * <P>Type: INTEGER</P>
1962          */
1963         public static final String MAX_INSTANCE = "maxInstance";
1964 
1965         /**
1966          * The minimum Julian day in the EventDays table.
1967          * <P>Type: INTEGER</P>
1968          */
1969         public static final String MIN_EVENTDAYS = "minEventDays";
1970 
1971         /**
1972          * The maximum Julian day in the EventDays table.
1973          * <P>Type: INTEGER</P>
1974          */
1975         public static final String MAX_EVENTDAYS = "maxEventDays";
1976     }
1977 
1978     /**
1979      * @hide
1980      */
1981     public static final class CalendarMetaData implements CalendarMetaDataColumns, BaseColumns {
1982 
1983         /**
1984          * This utility class cannot be instantiated
1985          */
CalendarMetaData()1986         private CalendarMetaData() {}
1987     }
1988 
1989     protected interface EventDaysColumns {
1990         /**
1991          * The Julian starting day number. Column name.
1992          * <P>Type: INTEGER (int)</P>
1993          */
1994         public static final String STARTDAY = "startDay";
1995         /**
1996          * The Julian ending day number. Column name.
1997          * <P>Type: INTEGER (int)</P>
1998          */
1999         public static final String ENDDAY = "endDay";
2000 
2001     }
2002 
2003     /**
2004      * Fields and helpers for querying for a list of days that contain events.
2005      */
2006     public static final class EventDays implements EventDaysColumns {
2007         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY
2008                 + "/instances/groupbyday");
2009         private static final String SELECTION = "selected=1";
2010 
2011         /**
2012          * This utility class cannot be instantiated
2013          */
EventDays()2014         private EventDays() {}
2015 
2016         /**
2017          * Retrieves the days with events for the Julian days starting at
2018          * "startDay" for "numDays". It returns a cursor containing startday and
2019          * endday representing the max range of days for all events beginning on
2020          * each startday.This is a blocking function and should not be done on
2021          * the UI thread.
2022          *
2023          * @param cr the ContentResolver
2024          * @param startDay the first Julian day in the range
2025          * @param numDays the number of days to load (must be at least 1)
2026          * @param projection the columns to return in the cursor
2027          * @return a database cursor containing a list of start and end days for
2028          *         events
2029          */
query(ContentResolver cr, int startDay, int numDays, String[] projection)2030         public static final Cursor query(ContentResolver cr, int startDay, int numDays,
2031                 String[] projection) {
2032             if (numDays < 1) {
2033                 return null;
2034             }
2035             int endDay = startDay + numDays - 1;
2036             Uri.Builder builder = CONTENT_URI.buildUpon();
2037             ContentUris.appendId(builder, startDay);
2038             ContentUris.appendId(builder, endDay);
2039             return cr.query(builder.build(), projection, SELECTION,
2040                     null /* selection args */, STARTDAY);
2041         }
2042     }
2043 
2044     protected interface RemindersColumns {
2045         /**
2046          * The event the reminder belongs to. Column name.
2047          * <P>Type: INTEGER (foreign key to the Events table)</P>
2048          */
2049         public static final String EVENT_ID = "event_id";
2050 
2051         /**
2052          * The minutes prior to the event that the alarm should ring.  -1
2053          * specifies that we should use the default value for the system.
2054          * Column name.
2055          * <P>Type: INTEGER</P>
2056          */
2057         public static final String MINUTES = "minutes";
2058 
2059         /**
2060          * Passing this as a minutes value will use the default reminder
2061          * minutes.
2062          */
2063         public static final int MINUTES_DEFAULT = -1;
2064 
2065         /**
2066          * The alarm method, as set on the server. {@link #METHOD_DEFAULT},
2067          * {@link #METHOD_ALERT}, {@link #METHOD_EMAIL}, {@link #METHOD_SMS} and
2068          * {@link #METHOD_ALARM} are possible values; the device will only
2069          * process {@link #METHOD_DEFAULT} and {@link #METHOD_ALERT} reminders
2070          * (the other types are simply stored so we can send the same reminder
2071          * info back to the server when we make changes).
2072          */
2073         public static final String METHOD = "method";
2074 
2075         public static final int METHOD_DEFAULT = 0;
2076         public static final int METHOD_ALERT = 1;
2077         public static final int METHOD_EMAIL = 2;
2078         public static final int METHOD_SMS = 3;
2079         public static final int METHOD_ALARM = 4;
2080     }
2081 
2082     /**
2083      * Fields and helpers for accessing reminders for an event. Each row of this
2084      * table represents a single reminder for an event. Calling
2085      * {@link #query(ContentResolver, long, String[])} will return a list of reminders for
2086      * the event with the given eventId. Both apps and sync adapters may write
2087      * to this table. There are three writable fields and all of them must be
2088      * included when inserting a new reminder. They are:
2089      * <ul>
2090      * <li>{@link #EVENT_ID}</li>
2091      * <li>{@link #MINUTES}</li>
2092      * <li>{@link #METHOD}</li>
2093      * </ul>
2094      */
2095     public static final class Reminders implements BaseColumns, RemindersColumns, EventsColumns {
2096         private static final String REMINDERS_WHERE = CalendarContract.Reminders.EVENT_ID + "=?";
2097         @SuppressWarnings("hiding")
2098         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/reminders");
2099 
2100         /**
2101          * This utility class cannot be instantiated
2102          */
Reminders()2103         private Reminders() {}
2104 
2105         /**
2106          * Queries all reminders associated with the given event. This is a
2107          * blocking call and should not be done on the UI thread.
2108          *
2109          * @param cr The content resolver to use for the query
2110          * @param eventId The id of the event to retrieve reminders for
2111          * @param projection the columns to return in the cursor
2112          * @return A Cursor containing all reminders for the event
2113          */
query(ContentResolver cr, long eventId, String[] projection)2114         public static final Cursor query(ContentResolver cr, long eventId, String[] projection) {
2115             String[] remArgs = {Long.toString(eventId)};
2116             return cr.query(CONTENT_URI, projection, REMINDERS_WHERE, remArgs /*selection args*/,
2117                     null /* sort order */);
2118         }
2119     }
2120 
2121     protected interface CalendarAlertsColumns {
2122         /**
2123          * The event that the alert belongs to. Column name.
2124          * <P>Type: INTEGER (foreign key to the Events table)</P>
2125          */
2126         public static final String EVENT_ID = "event_id";
2127 
2128         /**
2129          * The start time of the event, in UTC. Column name.
2130          * <P>Type: INTEGER (long; millis since epoch)</P>
2131          */
2132         public static final String BEGIN = "begin";
2133 
2134         /**
2135          * The end time of the event, in UTC. Column name.
2136          * <P>Type: INTEGER (long; millis since epoch)</P>
2137          */
2138         public static final String END = "end";
2139 
2140         /**
2141          * The alarm time of the event, in UTC. Column name.
2142          * <P>Type: INTEGER (long; millis since epoch)</P>
2143          */
2144         public static final String ALARM_TIME = "alarmTime";
2145 
2146         /**
2147          * The creation time of this database entry, in UTC.
2148          * Useful for debugging missed reminders. Column name.
2149          * <P>Type: INTEGER (long; millis since epoch)</P>
2150          */
2151         public static final String CREATION_TIME = "creationTime";
2152 
2153         /**
2154          * The time that the alarm broadcast was received by the Calendar app,
2155          * in UTC. Useful for debugging missed reminders. Column name.
2156          * <P>Type: INTEGER (long; millis since epoch)</P>
2157          */
2158         public static final String RECEIVED_TIME = "receivedTime";
2159 
2160         /**
2161          * The time that the notification was created by the Calendar app,
2162          * in UTC. Useful for debugging missed reminders. Column name.
2163          * <P>Type: INTEGER (long; millis since epoch)</P>
2164          */
2165         public static final String NOTIFY_TIME = "notifyTime";
2166 
2167         /**
2168          * The state of this alert. It starts out as {@link #STATE_SCHEDULED}, then
2169          * when the alarm goes off, it changes to {@link #STATE_FIRED}, and then when
2170          * the user dismisses the alarm it changes to {@link #STATE_DISMISSED}. Column
2171          * name.
2172          * <P>Type: INTEGER</P>
2173          */
2174         public static final String STATE = "state";
2175 
2176         /**
2177          * An alert begins in this state when it is first created.
2178          */
2179         public static final int STATE_SCHEDULED = 0;
2180         /**
2181          * After a notification for an alert has been created it should be
2182          * updated to fired.
2183          */
2184         public static final int STATE_FIRED = 1;
2185         /**
2186          * Once the user has dismissed the notification the alert's state should
2187          * be set to dismissed so it is not fired again.
2188          */
2189         public static final int STATE_DISMISSED = 2;
2190 
2191         /**
2192          * The number of minutes that this alarm precedes the start time. Column
2193          * name.
2194          * <P>Type: INTEGER</P>
2195          */
2196         public static final String MINUTES = "minutes";
2197 
2198         /**
2199          * The default sort order for this alerts queries
2200          */
2201         public static final String DEFAULT_SORT_ORDER = "begin ASC,title ASC";
2202     }
2203 
2204     /**
2205      * Fields and helpers for accessing calendar alerts information. These
2206      * fields are for tracking which alerts have been fired. Scheduled alarms
2207      * will generate an intent using {@link #ACTION_EVENT_REMINDER}. Apps that
2208      * receive this action may update the {@link #STATE} for the reminder when
2209      * they have finished handling it. Apps that have their notifications
2210      * disabled should not modify the table to ensure that they do not conflict
2211      * with another app that is generating a notification. In general, apps
2212      * should not need to write to this table directly except to update the
2213      * state of a reminder.
2214      */
2215     public static final class CalendarAlerts implements BaseColumns,
2216             CalendarAlertsColumns, EventsColumns, CalendarColumns {
2217 
2218         /**
2219          * @hide
2220          */
2221         public static final String TABLE_NAME = "CalendarAlerts";
2222         /**
2223          * The Uri for querying calendar alert information
2224          */
2225         @SuppressWarnings("hiding")
2226         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +
2227                 "/calendar_alerts");
2228 
2229         /**
2230          * This utility class cannot be instantiated
2231          */
CalendarAlerts()2232         private CalendarAlerts() {}
2233 
2234         private static final String WHERE_ALARM_EXISTS = EVENT_ID + "=?"
2235                 + " AND " + BEGIN + "=?"
2236                 + " AND " + ALARM_TIME + "=?";
2237 
2238         private static final String WHERE_FINDNEXTALARMTIME = ALARM_TIME + ">=?";
2239         private static final String SORT_ORDER_ALARMTIME_ASC = ALARM_TIME + " ASC";
2240 
2241         private static final String WHERE_RESCHEDULE_MISSED_ALARMS = STATE + "=" + STATE_SCHEDULED
2242                 + " AND " + ALARM_TIME + "<?"
2243                 + " AND " + ALARM_TIME + ">?"
2244                 + " AND " + END + ">=?";
2245 
2246         /**
2247          * This URI is for grouping the query results by event_id and begin
2248          * time.  This will return one result per instance of an event.  So
2249          * events with multiple alarms will appear just once, but multiple
2250          * instances of a repeating event will show up multiple times.
2251          */
2252         public static final Uri CONTENT_URI_BY_INSTANCE =
2253             Uri.parse("content://" + AUTHORITY + "/calendar_alerts/by_instance");
2254 
2255         private static final boolean DEBUG = false;
2256 
2257         /**
2258          * Helper for inserting an alarm time associated with an event TODO move
2259          * to Provider
2260          *
2261          * @hide
2262          */
insert(ContentResolver cr, long eventId, long begin, long end, long alarmTime, int minutes)2263         public static final Uri insert(ContentResolver cr, long eventId,
2264                 long begin, long end, long alarmTime, int minutes) {
2265             ContentValues values = new ContentValues();
2266             values.put(CalendarAlerts.EVENT_ID, eventId);
2267             values.put(CalendarAlerts.BEGIN, begin);
2268             values.put(CalendarAlerts.END, end);
2269             values.put(CalendarAlerts.ALARM_TIME, alarmTime);
2270             long currentTime = System.currentTimeMillis();
2271             values.put(CalendarAlerts.CREATION_TIME, currentTime);
2272             values.put(CalendarAlerts.RECEIVED_TIME, 0);
2273             values.put(CalendarAlerts.NOTIFY_TIME, 0);
2274             values.put(CalendarAlerts.STATE, STATE_SCHEDULED);
2275             values.put(CalendarAlerts.MINUTES, minutes);
2276             return cr.insert(CONTENT_URI, values);
2277         }
2278 
2279         /**
2280          * Finds the next alarm after (or equal to) the given time and returns
2281          * the time of that alarm or -1 if no such alarm exists. This is a
2282          * blocking call and should not be done on the UI thread. TODO move to
2283          * provider
2284          *
2285          * @param cr the ContentResolver
2286          * @param millis the time in UTC milliseconds
2287          * @return the next alarm time greater than or equal to "millis", or -1
2288          *         if no such alarm exists.
2289          * @hide
2290          */
findNextAlarmTime(ContentResolver cr, long millis)2291         public static final long findNextAlarmTime(ContentResolver cr, long millis) {
2292             String selection = ALARM_TIME + ">=" + millis;
2293             // TODO: construct an explicit SQL query so that we can add
2294             // "LIMIT 1" to the end and get just one result.
2295             String[] projection = new String[] { ALARM_TIME };
2296             Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_FINDNEXTALARMTIME,
2297                     (new String[] {
2298                         Long.toString(millis)
2299                     }), SORT_ORDER_ALARMTIME_ASC);
2300             long alarmTime = -1;
2301             try {
2302                 if (cursor != null && cursor.moveToFirst()) {
2303                     alarmTime = cursor.getLong(0);
2304                 }
2305             } finally {
2306                 if (cursor != null) {
2307                     cursor.close();
2308                 }
2309             }
2310             return alarmTime;
2311         }
2312 
2313         /**
2314          * Searches the CalendarAlerts table for alarms that should have fired
2315          * but have not and then reschedules them. This method can be called at
2316          * boot time to restore alarms that may have been lost due to a phone
2317          * reboot. TODO move to provider
2318          *
2319          * @param cr the ContentResolver
2320          * @param context the Context
2321          * @param manager the AlarmManager
2322          * @hide
2323          */
rescheduleMissedAlarms(ContentResolver cr, Context context, AlarmManager manager)2324         public static final void rescheduleMissedAlarms(ContentResolver cr,
2325                 Context context, AlarmManager manager) {
2326             // Get all the alerts that have been scheduled but have not fired
2327             // and should have fired by now and are not too old.
2328             long now = System.currentTimeMillis();
2329             long ancient = now - DateUtils.DAY_IN_MILLIS;
2330             String[] projection = new String[] {
2331                     ALARM_TIME,
2332             };
2333 
2334             // TODO: construct an explicit SQL query so that we can add
2335             // "GROUPBY" instead of doing a sort and de-dup
2336             Cursor cursor = cr.query(CalendarAlerts.CONTENT_URI, projection,
2337                     WHERE_RESCHEDULE_MISSED_ALARMS, (new String[] {
2338                             Long.toString(now), Long.toString(ancient), Long.toString(now)
2339                     }), SORT_ORDER_ALARMTIME_ASC);
2340             if (cursor == null) {
2341                 return;
2342             }
2343 
2344             if (DEBUG) {
2345                 Log.d(TAG, "missed alarms found: " + cursor.getCount());
2346             }
2347 
2348             try {
2349                 long alarmTime = -1;
2350 
2351                 while (cursor.moveToNext()) {
2352                     long newAlarmTime = cursor.getLong(0);
2353                     if (alarmTime != newAlarmTime) {
2354                         if (DEBUG) {
2355                             Log.w(TAG, "rescheduling missed alarm. alarmTime: " + newAlarmTime);
2356                         }
2357                         scheduleAlarm(context, manager, newAlarmTime);
2358                         alarmTime = newAlarmTime;
2359                     }
2360                 }
2361             } finally {
2362                 cursor.close();
2363             }
2364         }
2365 
2366         /**
2367          * Schedules an alarm intent with the system AlarmManager that will
2368          * notify listeners when a reminder should be fired. The provider will
2369          * keep scheduled reminders up to date but apps may use this to
2370          * implement snooze functionality without modifying the reminders table.
2371          * Scheduled alarms will generate an intent using
2372          * {@link #ACTION_EVENT_REMINDER}. TODO Move to provider
2373          *
2374          * @param context A context for referencing system resources
2375          * @param manager The AlarmManager to use or null
2376          * @param alarmTime The time to fire the intent in UTC millis since
2377          *            epoch
2378          * @hide
2379          */
scheduleAlarm(Context context, AlarmManager manager, long alarmTime)2380         public static void scheduleAlarm(Context context, AlarmManager manager, long alarmTime) {
2381             if (DEBUG) {
2382                 Time time = new Time();
2383                 time.set(alarmTime);
2384                 String schedTime = time.format(" %a, %b %d, %Y %I:%M%P");
2385                 Log.d(TAG, "Schedule alarm at " + alarmTime + " " + schedTime);
2386             }
2387 
2388             if (manager == null) {
2389                 manager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
2390             }
2391 
2392             Intent intent = new Intent(ACTION_EVENT_REMINDER);
2393             intent.setData(ContentUris.withAppendedId(CalendarContract.CONTENT_URI, alarmTime));
2394             intent.putExtra(ALARM_TIME, alarmTime);
2395             PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
2396             manager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, alarmTime, pi);
2397         }
2398 
2399         /**
2400          * Searches for an entry in the CalendarAlerts table that matches the
2401          * given event id, begin time and alarm time. If one is found then this
2402          * alarm already exists and this method returns true. TODO Move to
2403          * provider
2404          *
2405          * @param cr the ContentResolver
2406          * @param eventId the event id to match
2407          * @param begin the start time of the event in UTC millis
2408          * @param alarmTime the alarm time of the event in UTC millis
2409          * @return true if there is already an alarm for the given event with
2410          *         the same start time and alarm time.
2411          * @hide
2412          */
alarmExists(ContentResolver cr, long eventId, long begin, long alarmTime)2413         public static final boolean alarmExists(ContentResolver cr, long eventId,
2414                 long begin, long alarmTime) {
2415             // TODO: construct an explicit SQL query so that we can add
2416             // "LIMIT 1" to the end and get just one result.
2417             String[] projection = new String[] { ALARM_TIME };
2418             Cursor cursor = cr.query(CONTENT_URI, projection, WHERE_ALARM_EXISTS,
2419                     (new String[] {
2420                             Long.toString(eventId), Long.toString(begin), Long.toString(alarmTime)
2421                     }), null);
2422             boolean found = false;
2423             try {
2424                 if (cursor != null && cursor.getCount() > 0) {
2425                     found = true;
2426                 }
2427             } finally {
2428                 if (cursor != null) {
2429                     cursor.close();
2430                 }
2431             }
2432             return found;
2433         }
2434     }
2435 
2436     protected interface ColorsColumns extends SyncStateContract.Columns {
2437 
2438         /**
2439          * The type of color, which describes how it should be used. Valid types
2440          * are {@link #TYPE_CALENDAR} and {@link #TYPE_EVENT}. Column name.
2441          * <P>
2442          * Type: INTEGER (NOT NULL)
2443          * </P>
2444          */
2445         public static final String COLOR_TYPE = "color_type";
2446 
2447         /**
2448          * This indicateds a color that can be used for calendars.
2449          */
2450         public static final int TYPE_CALENDAR = 0;
2451         /**
2452          * This indicates a color that can be used for events.
2453          */
2454         public static final int TYPE_EVENT = 1;
2455 
2456         /**
2457          * The key used to reference this color. This can be any non-empty
2458          * string, but must be unique for a given {@link #ACCOUNT_TYPE} and
2459          * {@link #ACCOUNT_NAME}. Column name.
2460          * <P>
2461          * Type: TEXT
2462          * </P>
2463          */
2464         public static final String COLOR_KEY = "color_index";
2465 
2466         /**
2467          * The color as an 8-bit ARGB integer value. Colors should specify alpha
2468          * as fully opaque (eg 0xFF993322) as the alpha may be ignored or
2469          * modified for display. It is reccomended that colors be usable with
2470          * light (near white) text. Apps should not depend on that assumption,
2471          * however. Column name.
2472          * <P>
2473          * Type: INTEGER (NOT NULL)
2474          * </P>
2475          */
2476         public static final String COLOR = "color";
2477 
2478     }
2479 
2480     /**
2481      * Fields for accessing colors available for a given account. Colors are
2482      * referenced by {@link #COLOR_KEY} which must be unique for a given
2483      * account name/type. These values can only be updated by the sync
2484      * adapter. Only {@link #COLOR} may be updated after the initial insert. In
2485      * addition, a row can only be deleted once all references to that color
2486      * have been removed from the {@link Calendars} or {@link Events} tables.
2487      */
2488     public static final class Colors implements ColorsColumns {
2489         /**
2490          * @hide
2491          */
2492         public static final String TABLE_NAME = "Colors";
2493         /**
2494          * The Uri for querying color information
2495          */
2496         @SuppressWarnings("hiding")
2497         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/colors");
2498 
2499         /**
2500          * This utility class cannot be instantiated
2501          */
Colors()2502         private Colors() {
2503         }
2504     }
2505 
2506     protected interface ExtendedPropertiesColumns {
2507         /**
2508          * The event the extended property belongs to. Column name.
2509          * <P>Type: INTEGER (foreign key to the Events table)</P>
2510          */
2511         public static final String EVENT_ID = "event_id";
2512 
2513         /**
2514          * The name of the extended property.  This is a uri of the form
2515          * {scheme}#{local-name} convention. Column name.
2516          * <P>Type: TEXT</P>
2517          */
2518         public static final String NAME = "name";
2519 
2520         /**
2521          * The value of the extended property. Column name.
2522          * <P>Type: TEXT</P>
2523          */
2524         public static final String VALUE = "value";
2525     }
2526 
2527     /**
2528      * Fields for accessing the Extended Properties. This is a generic set of
2529      * name/value pairs for use by sync adapters to add extra
2530      * information to events. There are three writable columns and all three
2531      * must be present when inserting a new value. They are:
2532      * <ul>
2533      * <li>{@link #EVENT_ID}</li>
2534      * <li>{@link #NAME}</li>
2535      * <li>{@link #VALUE}</li>
2536      * </ul>
2537      */
2538    public static final class ExtendedProperties implements BaseColumns,
2539             ExtendedPropertiesColumns, EventsColumns {
2540         public static final Uri CONTENT_URI =
2541                 Uri.parse("content://" + AUTHORITY + "/extendedproperties");
2542 
2543         /**
2544          * This utility class cannot be instantiated
2545          */
ExtendedProperties()2546         private ExtendedProperties() {}
2547 
2548         // TODO: fill out this class when we actually start utilizing extendedproperties
2549         // in the calendar application.
2550    }
2551 
2552     /**
2553      * A table provided for sync adapters to use for storing private sync state data.
2554      *
2555      * @see SyncStateContract
2556      */
2557     public static final class SyncState implements SyncStateContract.Columns {
2558         /**
2559          * This utility class cannot be instantiated
2560          */
SyncState()2561         private SyncState() {}
2562 
2563         private static final String CONTENT_DIRECTORY =
2564                 SyncStateContract.Constants.CONTENT_DIRECTORY;
2565 
2566         /**
2567          * The content:// style URI for this table
2568          */
2569         public static final Uri CONTENT_URI =
2570                 Uri.withAppendedPath(CalendarContract.CONTENT_URI, CONTENT_DIRECTORY);
2571     }
2572 
2573     /**
2574      * Columns from the EventsRawTimes table
2575      *
2576      * @hide
2577      */
2578     protected interface EventsRawTimesColumns {
2579         /**
2580          * The corresponding event id. Column name.
2581          * <P>Type: INTEGER (long)</P>
2582          */
2583         public static final String EVENT_ID = "event_id";
2584 
2585         /**
2586          * The RFC2445 compliant time the event starts. Column name.
2587          * <P>Type: TEXT</P>
2588          */
2589         public static final String DTSTART_2445 = "dtstart2445";
2590 
2591         /**
2592          * The RFC2445 compliant time the event ends. Column name.
2593          * <P>Type: TEXT</P>
2594          */
2595         public static final String DTEND_2445 = "dtend2445";
2596 
2597         /**
2598          * The RFC2445 compliant original instance time of the recurring event
2599          * for which this event is an exception. Column name.
2600          * <P>Type: TEXT</P>
2601          */
2602         public static final String ORIGINAL_INSTANCE_TIME_2445 = "originalInstanceTime2445";
2603 
2604         /**
2605          * The RFC2445 compliant last date this event repeats on, or NULL if it
2606          * never ends. Column name.
2607          * <P>Type: TEXT</P>
2608          */
2609         public static final String LAST_DATE_2445 = "lastDate2445";
2610     }
2611 
2612     /**
2613      * @hide
2614      */
2615     public static final class EventsRawTimes implements BaseColumns, EventsRawTimesColumns {
2616 
2617         /**
2618          * This utility class cannot be instantiated
2619          */
EventsRawTimes()2620         private EventsRawTimes() {}
2621     }
2622 }
2623