1 /*
2  * Copyright (C) 2020 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5  * use this file except in compliance with the License. You may obtain a copy of
6  * 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, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13  * License for the specific language governing permissions and limitations under
14  * the License.
15  */
16 
17 package android.os;
18 
19 import android.content.ContentProvider;
20 import android.content.ContentValues;
21 import android.content.Intent;
22 import android.database.Cursor;
23 import android.database.MatrixCursor;
24 import android.net.Uri;
25 
26 import java.util.Arrays;
27 
28 public class SomeProvider extends ContentProvider {
29     private Cursor mCursor;
30 
31     @Override
onCreate()32     public boolean onCreate() {
33         return true;
34     }
35 
36     @Override
query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder)37     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
38             String sortOrder) {
39         return mCursor;
40     }
41 
42     @Override
getType(Uri uri)43     public String getType(Uri uri) {
44         throw new UnsupportedOperationException();
45     }
46 
47     @Override
insert(Uri uri, ContentValues values)48     public Uri insert(Uri uri, ContentValues values) {
49         throw new UnsupportedOperationException();
50     }
51 
52     @Override
delete(Uri uri, String selection, String[] selectionArgs)53     public int delete(Uri uri, String selection, String[] selectionArgs) {
54         throw new UnsupportedOperationException();
55     }
56 
57     @Override
update(Uri uri, ContentValues values, String selection, String[] selectionArgs)58     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
59         final char[] valueRaw = new char[512];
60         Arrays.fill(valueRaw, '!');
61         final String value = new String(valueRaw);
62 
63         final int count = values.getAsInteger(Intent.EXTRA_INDEX);
64         final MatrixCursor cursor = new MatrixCursor(new String[] { "_id", "value" });
65         for (int i = 0; i < count; i++) {
66             MatrixCursor.RowBuilder row = cursor.newRow();
67             row.add(0, i);
68             row.add(1, value);
69         }
70         mCursor = cursor;
71         return 1;
72     }
73 }
74