The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 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 | |
Neal Nguyen | 1a44d5d | 2010-01-13 10:42:43 -0800 | [diff] [blame] | 17 | package android.app.activity; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 18 | |
| 19 | import android.content.UriMatcher; |
| 20 | import android.content.*; |
| 21 | import android.database.Cursor; |
| 22 | import android.database.sqlite.SQLiteDatabase; |
| 23 | import android.database.sqlite.SQLiteOpenHelper; |
| 24 | import android.database.sqlite.SQLiteQueryBuilder; |
| 25 | import android.net.Uri; |
| 26 | import android.util.Config; |
| 27 | import android.util.Log; |
| 28 | |
| 29 | /** Simple test provider that runs in the local process. */ |
| 30 | public class LocalProvider extends ContentProvider { |
| 31 | private static final String TAG = "LocalProvider"; |
| 32 | |
| 33 | private SQLiteOpenHelper mOpenHelper; |
| 34 | |
| 35 | private static final int DATA = 1; |
| 36 | private static final int DATA_ID = 2; |
| 37 | private static final UriMatcher sURLMatcher = new UriMatcher( |
| 38 | UriMatcher.NO_MATCH); |
| 39 | |
| 40 | static { |
| 41 | sURLMatcher.addURI("*", "data", DATA); |
| 42 | sURLMatcher.addURI("*", "data/#", DATA_ID); |
| 43 | } |
| 44 | |
| 45 | private static class DatabaseHelper extends SQLiteOpenHelper { |
| 46 | private static final String DATABASE_NAME = "local.db"; |
| 47 | private static final int DATABASE_VERSION = 1; |
| 48 | |
| 49 | public DatabaseHelper(Context context) { |
| 50 | super(context, DATABASE_NAME, null, DATABASE_VERSION); |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public void onCreate(SQLiteDatabase db) { |
| 55 | db.execSQL("CREATE TABLE data (" + |
| 56 | "_id INTEGER PRIMARY KEY," + |
| 57 | "text TEXT, " + |
| 58 | "integer INTEGER);"); |
| 59 | |
| 60 | // insert alarms |
| 61 | db.execSQL("INSERT INTO data (text, integer) VALUES ('first data', 100);"); |
| 62 | } |
| 63 | |
| 64 | @Override |
| 65 | public void onUpgrade(SQLiteDatabase db, int oldVersion, int currentVersion) { |
| 66 | Log.w(TAG, "Upgrading test database from version " + |
| 67 | oldVersion + " to " + currentVersion + |
| 68 | ", which will destroy all old data"); |
| 69 | db.execSQL("DROP TABLE IF EXISTS data"); |
| 70 | onCreate(db); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | |
| 75 | public LocalProvider() { |
| 76 | } |
| 77 | |
| 78 | @Override |
| 79 | public boolean onCreate() { |
| 80 | mOpenHelper = new DatabaseHelper(getContext()); |
| 81 | return true; |
| 82 | } |
| 83 | |
| 84 | @Override |
| 85 | public Cursor query(Uri url, String[] projectionIn, String selection, |
| 86 | String[] selectionArgs, String sort) { |
| 87 | SQLiteQueryBuilder qb = new SQLiteQueryBuilder(); |
| 88 | |
| 89 | // Generate the body of the query |
| 90 | int match = sURLMatcher.match(url); |
| 91 | switch (match) { |
| 92 | case DATA: |
| 93 | qb.setTables("data"); |
| 94 | break; |
| 95 | case DATA_ID: |
| 96 | qb.setTables("data"); |
| 97 | qb.appendWhere("_id="); |
| 98 | qb.appendWhere(url.getPathSegments().get(1)); |
| 99 | break; |
| 100 | default: |
| 101 | throw new IllegalArgumentException("Unknown URL " + url); |
| 102 | } |
| 103 | |
| 104 | SQLiteDatabase db = mOpenHelper.getReadableDatabase(); |
| 105 | Cursor ret = qb.query(db, projectionIn, selection, selectionArgs, |
| 106 | null, null, sort); |
| 107 | |
| 108 | if (ret == null) { |
| 109 | if (Config.LOGD) Log.d(TAG, "Alarms.query: failed"); |
| 110 | } else { |
| 111 | ret.setNotificationUri(getContext().getContentResolver(), url); |
| 112 | } |
| 113 | |
| 114 | return ret; |
| 115 | } |
| 116 | |
| 117 | @Override |
| 118 | public String getType(Uri url) { |
| 119 | int match = sURLMatcher.match(url); |
| 120 | switch (match) { |
| 121 | case DATA: |
| 122 | return "vnd.android.cursor.dir/vnd.google.unit_tests.local"; |
| 123 | case DATA_ID: |
| 124 | return "vnd.android.cursor.item/vnd.google.unit_tests.local"; |
| 125 | default: |
| 126 | throw new IllegalArgumentException("Unknown URL"); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | @Override |
| 131 | public int update(Uri url, ContentValues values, String where, String[] whereArgs) { |
| 132 | int count; |
| 133 | long rowId = 0; |
| 134 | int match = sURLMatcher.match(url); |
| 135 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 136 | switch (match) { |
| 137 | case DATA_ID: { |
| 138 | String segment = url.getPathSegments().get(1); |
| 139 | rowId = Long.parseLong(segment); |
| 140 | count = db.update("data", values, "_id=" + rowId, null); |
| 141 | break; |
| 142 | } |
| 143 | default: { |
| 144 | throw new UnsupportedOperationException( |
| 145 | "Cannot update URL: " + url); |
| 146 | } |
| 147 | } |
| 148 | if (Config.LOGD) Log.d(TAG, "*** notifyChange() rowId: " + rowId); |
| 149 | getContext().getContentResolver().notifyChange(url, null); |
| 150 | return count; |
| 151 | } |
| 152 | |
| 153 | |
| 154 | @Override |
| 155 | public Uri insert(Uri url, ContentValues initialValues) { |
| 156 | return null; |
| 157 | } |
| 158 | |
| 159 | @Override |
| 160 | public int delete(Uri url, String where, String[] whereArgs) { |
| 161 | throw new UnsupportedOperationException("delete not supported"); |
| 162 | } |
| 163 | } |