* Note that apps may not have filesystem permissions to directly access
* this path. Instead of trying to open this path directly, apps should use
* {@link ContentResolver#openFileDescriptor(Uri, String)} to gain access.
*
* @deprecated apps should transition to using
* {@link ContentResolver#openFileDescriptor(Uri, String)}
* instead.
*/
@Deprecated
public final static String COLUMN_LOCAL_FILENAME = "local_filename";
/**
* Current status of the download, as one of the STATUS_* constants.
*/
public final static String COLUMN_STATUS = Downloads.Impl.COLUMN_STATUS;
/**
* Provides more detail on the status of the download. Its meaning depends on the value of
* {@link #COLUMN_STATUS}.
*
* When {@link #COLUMN_STATUS} is {@link #STATUS_FAILED}, this indicates the type of error that
* occurred. If an HTTP error occurred, this will hold the HTTP status code as defined in RFC
* 2616. Otherwise, it will hold one of the ERROR_* constants.
*
* When {@link #COLUMN_STATUS} is {@link #STATUS_PAUSED}, this indicates why the download is
* paused. It will hold one of the PAUSED_* constants.
*
* If {@link #COLUMN_STATUS} is neither {@link #STATUS_FAILED} nor {@link #STATUS_PAUSED}, this
* column's value is undefined.
*
* @see RFC 2616
* status codes
*/
public final static String COLUMN_REASON = "reason";
/**
* Number of bytes download so far.
*/
public final static String COLUMN_BYTES_DOWNLOADED_SO_FAR = "bytes_so_far";
/**
* Timestamp when the download was last modified, in {@link System#currentTimeMillis
* System.currentTimeMillis()} (wall clock time in UTC).
*/
public final static String COLUMN_LAST_MODIFIED_TIMESTAMP = "last_modified_timestamp";
/**
* The URI to the corresponding entry in MediaProvider for this downloaded entry. It is
* used to delete the entries from MediaProvider database when it is deleted from the
* downloaded list.
*/
public static final String COLUMN_MEDIAPROVIDER_URI = Downloads.Impl.COLUMN_MEDIAPROVIDER_URI;
/**
* @hide
*/
public final static String COLUMN_ALLOW_WRITE = Downloads.Impl.COLUMN_ALLOW_WRITE;
/**
* Value of {@link #COLUMN_STATUS} when the download is waiting to start.
*/
public final static int STATUS_PENDING = 1 << 0;
/**
* Value of {@link #COLUMN_STATUS} when the download is currently running.
*/
public final static int STATUS_RUNNING = 1 << 1;
/**
* Value of {@link #COLUMN_STATUS} when the download is waiting to retry or resume.
*/
public final static int STATUS_PAUSED = 1 << 2;
/**
* Value of {@link #COLUMN_STATUS} when the download has successfully completed.
*/
public final static int STATUS_SUCCESSFUL = 1 << 3;
/**
* Value of {@link #COLUMN_STATUS} when the download has failed (and will not be retried).
*/
public final static int STATUS_FAILED = 1 << 4;
/**
* Value of COLUMN_ERROR_CODE when the download has completed with an error that doesn't fit
* under any other error code.
*/
public final static int ERROR_UNKNOWN = 1000;
/**
* Value of {@link #COLUMN_REASON} when a storage issue arises which doesn't fit under any
* other error code. Use the more specific {@link #ERROR_INSUFFICIENT_SPACE} and
* {@link #ERROR_DEVICE_NOT_FOUND} when appropriate.
*/
public final static int ERROR_FILE_ERROR = 1001;
/**
* Value of {@link #COLUMN_REASON} when an HTTP code was received that download manager
* can't handle.
*/
public final static int ERROR_UNHANDLED_HTTP_CODE = 1002;
/**
* Value of {@link #COLUMN_REASON} when an error receiving or processing data occurred at
* the HTTP level.
*/
public final static int ERROR_HTTP_DATA_ERROR = 1004;
/**
* Value of {@link #COLUMN_REASON} when there were too many redirects.
*/
public final static int ERROR_TOO_MANY_REDIRECTS = 1005;
/**
* Value of {@link #COLUMN_REASON} when there was insufficient storage space. Typically,
* this is because the SD card is full.
*/
public final static int ERROR_INSUFFICIENT_SPACE = 1006;
/**
* Value of {@link #COLUMN_REASON} when no external storage device was found. Typically,
* this is because the SD card is not mounted.
*/
public final static int ERROR_DEVICE_NOT_FOUND = 1007;
/**
* Value of {@link #COLUMN_REASON} when some possibly transient error occurred but we can't
* resume the download.
*/
public final static int ERROR_CANNOT_RESUME = 1008;
/**
* Value of {@link #COLUMN_REASON} when the requested destination file already exists (the
* download manager will not overwrite an existing file).
*/
public final static int ERROR_FILE_ALREADY_EXISTS = 1009;
/**
* Value of {@link #COLUMN_REASON} when the download has failed because of
* {@link NetworkPolicyManager} controls on the requesting application.
*
* @hide
*/
public final static int ERROR_BLOCKED = 1010;
/**
* Value of {@link #COLUMN_REASON} when the download is paused because some network error
* occurred and the download manager is waiting before retrying the request.
*/
public final static int PAUSED_WAITING_TO_RETRY = 1;
/**
* Value of {@link #COLUMN_REASON} when the download is waiting for network connectivity to
* proceed.
*/
public final static int PAUSED_WAITING_FOR_NETWORK = 2;
/**
* Value of {@link #COLUMN_REASON} when the download exceeds a size limit for downloads over
* the mobile network and the download manager is waiting for a Wi-Fi connection to proceed.
*/
public final static int PAUSED_QUEUED_FOR_WIFI = 3;
/**
* Value of {@link #COLUMN_REASON} when the download is paused for some other reason.
*/
public final static int PAUSED_UNKNOWN = 4;
/**
* Broadcast intent action sent by the download manager when a download completes.
*/
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public final static String ACTION_DOWNLOAD_COMPLETE = "android.intent.action.DOWNLOAD_COMPLETE";
/**
* Broadcast intent action sent by the download manager when the user clicks on a running
* download, either from a system notification or from the downloads UI.
*/
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public final static String ACTION_NOTIFICATION_CLICKED =
"android.intent.action.DOWNLOAD_NOTIFICATION_CLICKED";
/**
* Intent action to launch an activity to display all downloads.
*/
@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
public final static String ACTION_VIEW_DOWNLOADS = "android.intent.action.VIEW_DOWNLOADS";
/**
* Intent extra included with {@link #ACTION_VIEW_DOWNLOADS} to start DownloadApp in
* sort-by-size mode.
*/
public final static String INTENT_EXTRAS_SORT_BY_SIZE =
"android.app.DownloadManager.extra_sortBySize";
/**
* Intent extra included with {@link #ACTION_DOWNLOAD_COMPLETE} intents, indicating the ID (as a
* long) of the download that just completed.
*/
public static final String EXTRA_DOWNLOAD_ID = "extra_download_id";
/**
* When clicks on multiple notifications are received, the following
* provides an array of download ids corresponding to the download notification that was
* clicked. It can be retrieved by the receiver of this
* Intent using {@link android.content.Intent#getLongArrayExtra(String)}.
*/
public static final String EXTRA_NOTIFICATION_CLICK_DOWNLOAD_IDS = "extra_click_download_ids";
/**
* columns to request from DownloadProvider.
* @hide
*/
public static final String[] UNDERLYING_COLUMNS = new String[] {
Downloads.Impl._ID,
Downloads.Impl._DATA + " AS " + COLUMN_LOCAL_FILENAME,
Downloads.Impl.COLUMN_MEDIAPROVIDER_URI,
Downloads.Impl.COLUMN_DESTINATION,
Downloads.Impl.COLUMN_TITLE,
Downloads.Impl.COLUMN_DESCRIPTION,
Downloads.Impl.COLUMN_URI,
Downloads.Impl.COLUMN_STATUS,
Downloads.Impl.COLUMN_FILE_NAME_HINT,
Downloads.Impl.COLUMN_MIME_TYPE + " AS " + COLUMN_MEDIA_TYPE,
Downloads.Impl.COLUMN_TOTAL_BYTES + " AS " + COLUMN_TOTAL_SIZE_BYTES,
Downloads.Impl.COLUMN_LAST_MODIFICATION + " AS " + COLUMN_LAST_MODIFIED_TIMESTAMP,
Downloads.Impl.COLUMN_CURRENT_BYTES + " AS " + COLUMN_BYTES_DOWNLOADED_SO_FAR,
Downloads.Impl.COLUMN_ALLOW_WRITE,
/* add the following 'computed' columns to the cursor.
* they are not 'returned' by the database, but their inclusion
* eliminates need to have lot of methods in CursorTranslator
*/
"'placeholder' AS " + COLUMN_LOCAL_URI,
"'placeholder' AS " + COLUMN_REASON
};
/**
* This class contains all the information necessary to request a new download. The URI is the
* only required parameter.
*
* Note that the default download destination is a shared volume where the system might delete
* your file if it needs to reclaim space for system use. If this is a problem, use a location
* on external storage (see {@link #setDestinationUri(Uri)}.
*/
public static class Request {
/**
* Bit flag for {@link #setAllowedNetworkTypes} corresponding to
* {@link ConnectivityManager#TYPE_MOBILE}.
*/
public static final int NETWORK_MOBILE = 1 << 0;
/**
* Bit flag for {@link #setAllowedNetworkTypes} corresponding to
* {@link ConnectivityManager#TYPE_WIFI}.
*/
public static final int NETWORK_WIFI = 1 << 1;
/**
* Bit flag for {@link #setAllowedNetworkTypes} corresponding to
* {@link ConnectivityManager#TYPE_BLUETOOTH}.
* @hide
*/
@Deprecated
public static final int NETWORK_BLUETOOTH = 1 << 2;
private Uri mUri;
private Uri mDestinationUri;
private List
* The downloaded file is not scanned by MediaScanner.
* But it can be made scannable by calling {@link #allowScanningByMediaScanner()}.
*
* By default, downloads are saved to a generated filename in the shared download cache and
* may be deleted by the system at any time to reclaim space.
*
* @return this object
*/
public Request setDestinationUri(Uri uri) {
mDestinationUri = uri;
return this;
}
/**
* Set the local destination for the downloaded file to the system cache dir (/cache).
* This is only available to System apps with the permission
* {@link android.Manifest.permission#ACCESS_CACHE_FILESYSTEM}.
*
* The downloaded file is not scanned by MediaScanner.
* But it can be made scannable by calling {@link #allowScanningByMediaScanner()}.
*
* Files downloaded to /cache may be deleted by the system at any time to reclaim space.
*
* @return this object
* @hide
*/
public Request setDestinationToSystemCache() {
mUseSystemCache = true;
return this;
}
/**
* Set the local destination for the downloaded file to a path within
* the application's external files directory (as returned by
* {@link Context#getExternalFilesDir(String)}.
*
* The downloaded file is not scanned by MediaScanner. But it can be
* made scannable by calling {@link #allowScanningByMediaScanner()}.
*
* @param context the {@link Context} to use in determining the external
* files directory
* @param dirType the directory type to pass to
* {@link Context#getExternalFilesDir(String)}
* @param subPath the path within the external directory, including the
* destination filename
* @return this object
* @throws IllegalStateException If the external storage directory
* cannot be found or created.
*/
public Request setDestinationInExternalFilesDir(Context context, String dirType,
String subPath) {
final File file = context.getExternalFilesDir(dirType);
if (file == null) {
throw new IllegalStateException("Failed to get external storage files directory");
} else if (file.exists()) {
if (!file.isDirectory()) {
throw new IllegalStateException(file.getAbsolutePath() +
" already exists and is not a directory");
}
} else {
if (!file.mkdirs()) {
throw new IllegalStateException("Unable to create directory: "+
file.getAbsolutePath());
}
}
setDestinationFromBase(file, subPath);
return this;
}
/**
* Set the local destination for the downloaded file to a path within
* the public external storage directory (as returned by
* {@link Environment#getExternalStoragePublicDirectory(String)}).
*
* The downloaded file is not scanned by MediaScanner. But it can be
* made scannable by calling {@link #allowScanningByMediaScanner()}.
*
* @param dirType the directory type to pass to {@link Environment#getExternalStoragePublicDirectory(String)}
* @param subPath the path within the external directory, including the
* destination filename
* @return this object
* @throws IllegalStateException If the external storage directory
* cannot be found or created.
*/
public Request setDestinationInExternalPublicDir(String dirType, String subPath) {
File file = Environment.getExternalStoragePublicDirectory(dirType);
if (file == null) {
throw new IllegalStateException("Failed to get external storage public directory");
} else if (file.exists()) {
if (!file.isDirectory()) {
throw new IllegalStateException(file.getAbsolutePath() +
" already exists and is not a directory");
}
} else {
if (!file.mkdirs()) {
throw new IllegalStateException("Unable to create directory: "+
file.getAbsolutePath());
}
}
setDestinationFromBase(file, subPath);
return this;
}
private void setDestinationFromBase(File base, String subPath) {
if (subPath == null) {
throw new NullPointerException("subPath cannot be null");
}
mDestinationUri = Uri.withAppendedPath(Uri.fromFile(base), subPath);
}
/**
* If the file to be downloaded is to be scanned by MediaScanner, this method
* should be called before {@link DownloadManager#enqueue(Request)} is called.
*/
public void allowScanningByMediaScanner() {
mScannable = true;
}
/**
* Add an HTTP header to be included with the download request. The header will be added to
* the end of the list.
* @param header HTTP header name
* @param value header value
* @return this object
* @see HTTP/1.1
* Message Headers
*/
public Request addRequestHeader(String header, String value) {
if (header == null) {
throw new NullPointerException("header cannot be null");
}
if (header.contains(":")) {
throw new IllegalArgumentException("header may not contain ':'");
}
if (value == null) {
value = "";
}
mRequestHeaders.add(Pair.create(header, value));
return this;
}
/**
* Set the title of this download, to be displayed in notifications (if enabled). If no
* title is given, a default one will be assigned based on the download filename, once the
* download starts.
* @return this object
*/
public Request setTitle(CharSequence title) {
mTitle = title;
return this;
}
/**
* Set a description of this download, to be displayed in notifications (if enabled)
* @return this object
*/
public Request setDescription(CharSequence description) {
mDescription = description;
return this;
}
/**
* Set the MIME content type of this download. This will override the content type declared
* in the server's response.
* @see HTTP/1.1
* Media Types
* @return this object
*/
public Request setMimeType(String mimeType) {
mMimeType = mimeType;
return this;
}
/**
* Control whether a system notification is posted by the download manager while this
* download is running. If enabled, the download manager posts notifications about downloads
* through the system {@link android.app.NotificationManager}. By default, a notification is
* shown.
*
* If set to false, this requires the permission
* android.permission.DOWNLOAD_WITHOUT_NOTIFICATION.
*
* @param show whether the download manager should show a notification for this download.
* @return this object
* @deprecated use {@link #setNotificationVisibility(int)}
*/
@Deprecated
public Request setShowRunningNotification(boolean show) {
return (show) ? setNotificationVisibility(VISIBILITY_VISIBLE) :
setNotificationVisibility(VISIBILITY_HIDDEN);
}
/**
* Control whether a system notification is posted by the download manager while this
* download is running or when it is completed.
* If enabled, the download manager posts notifications about downloads
* through the system {@link android.app.NotificationManager}.
* By default, a notification is shown only when the download is in progress.
*
* It can take the following values: {@link #VISIBILITY_HIDDEN},
* {@link #VISIBILITY_VISIBLE},
* {@link #VISIBILITY_VISIBLE_NOTIFY_COMPLETED}.
*
* If set to {@link #VISIBILITY_HIDDEN}, this requires the permission
* android.permission.DOWNLOAD_WITHOUT_NOTIFICATION.
*
* @param visibility the visibility setting value
* @return this object
*/
public Request setNotificationVisibility(int visibility) {
mNotificationVisibility = visibility;
return this;
}
/**
* Restrict the types of networks over which this download may proceed.
* By default, all network types are allowed. Consider using
* {@link #setAllowedOverMetered(boolean)} instead, since it's more
* flexible.
*
* As of {@link android.os.Build.VERSION_CODES#N}, setting only the
* {@link #NETWORK_WIFI} flag here is equivalent to calling
* {@link #setAllowedOverMetered(boolean)} with {@code false}.
*
* @param flags any combination of the NETWORK_* bit flags.
* @return this object
*/
public Request setAllowedNetworkTypes(int flags) {
mAllowedNetworkTypes = flags;
return this;
}
/**
* Set whether this download may proceed over a roaming connection. By default, roaming is
* allowed.
* @param allowed whether to allow a roaming connection to be used
* @return this object
*/
public Request setAllowedOverRoaming(boolean allowed) {
mRoamingAllowed = allowed;
return this;
}
/**
* Set whether this download may proceed over a metered network
* connection. By default, metered networks are allowed.
*
* @see ConnectivityManager#isActiveNetworkMetered()
*/
public Request setAllowedOverMetered(boolean allow) {
mMeteredAllowed = allow;
return this;
}
/**
* Specify that to run this download, the device needs to be plugged in.
* This defaults to false.
*
* @param requiresCharging Whether or not the device is plugged in.
* @see android.app.job.JobInfo.Builder#setRequiresCharging(boolean)
*/
public Request setRequiresCharging(boolean requiresCharging) {
if (requiresCharging) {
mFlags |= Downloads.Impl.FLAG_REQUIRES_CHARGING;
} else {
mFlags &= ~Downloads.Impl.FLAG_REQUIRES_CHARGING;
}
return this;
}
/**
* Specify that to run, the download needs the device to be in idle
* mode. This defaults to false.
*
* Idle mode is a loose definition provided by the system, which means
* that the device is not in use, and has not been in use for some time.
*
* @param requiresDeviceIdle Whether or not the device need be within an
* idle maintenance window.
* @see android.app.job.JobInfo.Builder#setRequiresDeviceIdle(boolean)
*/
public Request setRequiresDeviceIdle(boolean requiresDeviceIdle) {
if (requiresDeviceIdle) {
mFlags |= Downloads.Impl.FLAG_REQUIRES_DEVICE_IDLE;
} else {
mFlags &= ~Downloads.Impl.FLAG_REQUIRES_DEVICE_IDLE;
}
return this;
}
/**
* Set whether this download should be displayed in the system's Downloads UI. True by
* default.
* @param isVisible whether to display this download in the Downloads UI
* @return this object
*/
public Request setVisibleInDownloadsUi(boolean isVisible) {
mIsVisibleInDownloadsUi = isVisible;
return this;
}
/**
* @return ContentValues to be passed to DownloadProvider.insert()
*/
ContentValues toContentValues(String packageName) {
ContentValues values = new ContentValues();
assert mUri != null;
values.put(Downloads.Impl.COLUMN_URI, mUri.toString());
values.put(Downloads.Impl.COLUMN_IS_PUBLIC_API, true);
values.put(Downloads.Impl.COLUMN_NOTIFICATION_PACKAGE, packageName);
if (mDestinationUri != null) {
values.put(Downloads.Impl.COLUMN_DESTINATION, Downloads.Impl.DESTINATION_FILE_URI);
values.put(Downloads.Impl.COLUMN_FILE_NAME_HINT, mDestinationUri.toString());
} else {
values.put(Downloads.Impl.COLUMN_DESTINATION,
(this.mUseSystemCache) ?
Downloads.Impl.DESTINATION_SYSTEMCACHE_PARTITION :
Downloads.Impl.DESTINATION_CACHE_PARTITION_PURGEABLE);
}
// is the file supposed to be media-scannable?
values.put(Downloads.Impl.COLUMN_MEDIA_SCANNED, (mScannable) ? SCANNABLE_VALUE_YES :
SCANNABLE_VALUE_NO);
if (!mRequestHeaders.isEmpty()) {
encodeHttpHeaders(values);
}
putIfNonNull(values, Downloads.Impl.COLUMN_TITLE, mTitle);
putIfNonNull(values, Downloads.Impl.COLUMN_DESCRIPTION, mDescription);
putIfNonNull(values, Downloads.Impl.COLUMN_MIME_TYPE, mMimeType);
values.put(Downloads.Impl.COLUMN_VISIBILITY, mNotificationVisibility);
values.put(Downloads.Impl.COLUMN_ALLOWED_NETWORK_TYPES, mAllowedNetworkTypes);
values.put(Downloads.Impl.COLUMN_ALLOW_ROAMING, mRoamingAllowed);
values.put(Downloads.Impl.COLUMN_ALLOW_METERED, mMeteredAllowed);
values.put(Downloads.Impl.COLUMN_FLAGS, mFlags);
values.put(Downloads.Impl.COLUMN_IS_VISIBLE_IN_DOWNLOADS_UI, mIsVisibleInDownloadsUi);
return values;
}
private void encodeHttpHeaders(ContentValues values) {
int index = 0;
for (Pair
* It is helpful to make the file scannable by MediaScanner by setting the param
* isMediaScannerScannable to true. It makes the file visible in media managing
* applications such as Gallery App, which could be a useful purpose of using this API.
*
* @param title the title that would appear for this file in Downloads App.
* @param description the description that would appear for this file in Downloads App.
* @param isMediaScannerScannable true if the file is to be scanned by MediaScanner. Files
* scanned by MediaScanner appear in the applications used to view media (for example,
* Gallery app).
* @param mimeType mimetype of the file.
* @param path absolute pathname to the file. The file should be world-readable, so that it can
* be managed by the Downloads App and any other app that is used to read it (for example,
* Gallery app to display the file, if the file contents represent a video/image).
* @param length length of the downloaded file
* @param showNotification true if a notification is to be sent, false otherwise
* @return an ID for the download entry added to the downloads app, unique across the system
* This ID is used to make future calls related to this download.
*/
public long addCompletedDownload(String title, String description,
boolean isMediaScannerScannable, String mimeType, String path, long length,
boolean showNotification) {
return addCompletedDownload(title, description, isMediaScannerScannable, mimeType, path,
length, showNotification, false, null, null);
}
/**
* Adds a file to the downloads database system, so it could appear in Downloads App
* (and thus become eligible for management by the Downloads App).
*
* It is helpful to make the file scannable by MediaScanner by setting the param
* isMediaScannerScannable to true. It makes the file visible in media managing
* applications such as Gallery App, which could be a useful purpose of using this API.
*
* @param title the title that would appear for this file in Downloads App.
* @param description the description that would appear for this file in Downloads App.
* @param isMediaScannerScannable true if the file is to be scanned by MediaScanner. Files
* scanned by MediaScanner appear in the applications used to view media (for example,
* Gallery app).
* @param mimeType mimetype of the file.
* @param path absolute pathname to the file. The file should be world-readable, so that it can
* be managed by the Downloads App and any other app that is used to read it (for example,
* Gallery app to display the file, if the file contents represent a video/image).
* @param length length of the downloaded file
* @param showNotification true if a notification is to be sent, false otherwise
* @param uri the original HTTP URI of the download
* @param referer the HTTP Referer for the download
* @return an ID for the download entry added to the downloads app, unique across the system
* This ID is used to make future calls related to this download.
*/
public long addCompletedDownload(String title, String description,
boolean isMediaScannerScannable, String mimeType, String path, long length,
boolean showNotification, Uri uri, Uri referer) {
return addCompletedDownload(title, description, isMediaScannerScannable, mimeType, path,
length, showNotification, false, uri, referer);
}
/** {@hide} */
public long addCompletedDownload(String title, String description,
boolean isMediaScannerScannable, String mimeType, String path, long length,
boolean showNotification, boolean allowWrite) {
return addCompletedDownload(title, description, isMediaScannerScannable, mimeType, path,
length, showNotification, allowWrite, null, null);
}
/** {@hide} */
public long addCompletedDownload(String title, String description,
boolean isMediaScannerScannable, String mimeType, String path, long length,
boolean showNotification, boolean allowWrite, Uri uri, Uri referer) {
// make sure the input args are non-null/non-zero
validateArgumentIsNonEmpty("title", title);
validateArgumentIsNonEmpty("description", description);
validateArgumentIsNonEmpty("path", path);
validateArgumentIsNonEmpty("mimeType", mimeType);
if (length < 0) {
throw new IllegalArgumentException(" invalid value for param: totalBytes");
}
// if there is already an entry with the given path name in downloads.db, return its id
Request request;
if (uri != null) {
request = new Request(uri);
} else {
request = new Request(NON_DOWNLOADMANAGER_DOWNLOAD);
}
request.setTitle(title)
.setDescription(description)
.setMimeType(mimeType);
if (referer != null) {
request.addRequestHeader("Referer", referer.toString());
}
ContentValues values = request.toContentValues(null);
values.put(Downloads.Impl.COLUMN_DESTINATION,
Downloads.Impl.DESTINATION_NON_DOWNLOADMANAGER_DOWNLOAD);
values.put(Downloads.Impl._DATA, path);
values.put(Downloads.Impl.COLUMN_STATUS, Downloads.Impl.STATUS_SUCCESS);
values.put(Downloads.Impl.COLUMN_TOTAL_BYTES, length);
values.put(Downloads.Impl.COLUMN_MEDIA_SCANNED,
(isMediaScannerScannable) ? Request.SCANNABLE_VALUE_YES :
Request.SCANNABLE_VALUE_NO);
values.put(Downloads.Impl.COLUMN_VISIBILITY, (showNotification) ?
Request.VISIBILITY_VISIBLE_NOTIFY_ONLY_COMPLETION : Request.VISIBILITY_HIDDEN);
values.put(Downloads.Impl.COLUMN_ALLOW_WRITE, allowWrite ? 1 : 0);
Uri downloadUri = mResolver.insert(Downloads.Impl.CONTENT_URI, values);
if (downloadUri == null) {
return -1;
}
return Long.parseLong(downloadUri.getLastPathSegment());
}
private static final String NON_DOWNLOADMANAGER_DOWNLOAD =
"non-dwnldmngr-download-dont-retry2download";
private static void validateArgumentIsNonEmpty(String paramName, String val) {
if (TextUtils.isEmpty(val)) {
throw new IllegalArgumentException(paramName + " can't be null");
}
}
/**
* Get the DownloadProvider URI for the download with the given ID.
*
* @hide
*/
public Uri getDownloadUri(long id) {
return ContentUris.withAppendedId(mBaseUri, id);
}
/**
* Get a parameterized SQL WHERE clause to select a bunch of IDs.
*/
static String getWhereClauseForIds(long[] ids) {
StringBuilder whereClause = new StringBuilder();
whereClause.append("(");
for (int i = 0; i < ids.length; i++) {
if (i > 0) {
whereClause.append("OR ");
}
whereClause.append(Downloads.Impl._ID);
whereClause.append(" = ? ");
}
whereClause.append(")");
return whereClause.toString();
}
/**
* Get the selection args for a clause returned by {@link #getWhereClauseForIds(long[])}.
*/
static String[] getWhereArgsForIds(long[] ids) {
String[] whereArgs = new String[ids.length];
for (int i = 0; i < ids.length; i++) {
whereArgs[i] = Long.toString(ids[i]);
}
return whereArgs;
}
/**
* This class wraps a cursor returned by DownloadProvider -- the "underlying cursor" -- and
* presents a different set of columns, those defined in the DownloadManager.COLUMN_* constants.
* Some columns correspond directly to underlying values while others are computed from
* underlying data.
*/
private static class CursorTranslator extends CursorWrapper {
private final Uri mBaseUri;
private final boolean mAccessFilename;
public CursorTranslator(Cursor cursor, Uri baseUri, boolean accessFilename) {
super(cursor);
mBaseUri = baseUri;
mAccessFilename = accessFilename;
}
@Override
public int getInt(int columnIndex) {
return (int) getLong(columnIndex);
}
@Override
public long getLong(int columnIndex) {
if (getColumnName(columnIndex).equals(COLUMN_REASON)) {
return getReason(super.getInt(getColumnIndex(Downloads.Impl.COLUMN_STATUS)));
} else if (getColumnName(columnIndex).equals(COLUMN_STATUS)) {
return translateStatus(super.getInt(getColumnIndex(Downloads.Impl.COLUMN_STATUS)));
} else {
return super.getLong(columnIndex);
}
}
@Override
public String getString(int columnIndex) {
final String columnName = getColumnName(columnIndex);
switch (columnName) {
case COLUMN_LOCAL_URI:
return getLocalUri();
case COLUMN_LOCAL_FILENAME:
if (!mAccessFilename) {
throw new SecurityException(
"COLUMN_LOCAL_FILENAME is deprecated;"
+ " use ContentResolver.openFileDescriptor() instead");
}
default:
return super.getString(columnIndex);
}
}
private String getLocalUri() {
long destinationType = getLong(getColumnIndex(Downloads.Impl.COLUMN_DESTINATION));
if (destinationType == Downloads.Impl.DESTINATION_FILE_URI ||
destinationType == Downloads.Impl.DESTINATION_EXTERNAL ||
destinationType == Downloads.Impl.DESTINATION_NON_DOWNLOADMANAGER_DOWNLOAD) {
String localPath = super.getString(getColumnIndex(COLUMN_LOCAL_FILENAME));
if (localPath == null) {
return null;
}
return Uri.fromFile(new File(localPath)).toString();
}
// return content URI for cache download
long downloadId = getLong(getColumnIndex(Downloads.Impl._ID));
return ContentUris.withAppendedId(mBaseUri, downloadId).toString();
}
private long getReason(int status) {
switch (translateStatus(status)) {
case STATUS_FAILED:
return getErrorCode(status);
case STATUS_PAUSED:
return getPausedReason(status);
default:
return 0; // arbitrary value when status is not an error
}
}
private long getPausedReason(int status) {
switch (status) {
case Downloads.Impl.STATUS_WAITING_TO_RETRY:
return PAUSED_WAITING_TO_RETRY;
case Downloads.Impl.STATUS_WAITING_FOR_NETWORK:
return PAUSED_WAITING_FOR_NETWORK;
case Downloads.Impl.STATUS_QUEUED_FOR_WIFI:
return PAUSED_QUEUED_FOR_WIFI;
default:
return PAUSED_UNKNOWN;
}
}
private long getErrorCode(int status) {
if ((400 <= status && status < Downloads.Impl.MIN_ARTIFICIAL_ERROR_STATUS)
|| (500 <= status && status < 600)) {
// HTTP status code
return status;
}
switch (status) {
case Downloads.Impl.STATUS_FILE_ERROR:
return ERROR_FILE_ERROR;
case Downloads.Impl.STATUS_UNHANDLED_HTTP_CODE:
case Downloads.Impl.STATUS_UNHANDLED_REDIRECT:
return ERROR_UNHANDLED_HTTP_CODE;
case Downloads.Impl.STATUS_HTTP_DATA_ERROR:
return ERROR_HTTP_DATA_ERROR;
case Downloads.Impl.STATUS_TOO_MANY_REDIRECTS:
return ERROR_TOO_MANY_REDIRECTS;
case Downloads.Impl.STATUS_INSUFFICIENT_SPACE_ERROR:
return ERROR_INSUFFICIENT_SPACE;
case Downloads.Impl.STATUS_DEVICE_NOT_FOUND_ERROR:
return ERROR_DEVICE_NOT_FOUND;
case Downloads.Impl.STATUS_CANNOT_RESUME:
return ERROR_CANNOT_RESUME;
case Downloads.Impl.STATUS_FILE_ALREADY_EXISTS_ERROR:
return ERROR_FILE_ALREADY_EXISTS;
default:
return ERROR_UNKNOWN;
}
}
private int translateStatus(int status) {
switch (status) {
case Downloads.Impl.STATUS_PENDING:
return STATUS_PENDING;
case Downloads.Impl.STATUS_RUNNING:
return STATUS_RUNNING;
case Downloads.Impl.STATUS_PAUSED_BY_APP:
case Downloads.Impl.STATUS_WAITING_TO_RETRY:
case Downloads.Impl.STATUS_WAITING_FOR_NETWORK:
case Downloads.Impl.STATUS_QUEUED_FOR_WIFI:
return STATUS_PAUSED;
case Downloads.Impl.STATUS_SUCCESS:
return STATUS_SUCCESSFUL;
default:
assert Downloads.Impl.isStatusError(status);
return STATUS_FAILED;
}
}
}
}