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[android-x86/packages-apps-DeskClock.git] / src / com / android / deskclock / AlarmProvider.java
diff --git a/src/com/android/deskclock/AlarmProvider.java b/src/com/android/deskclock/AlarmProvider.java
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+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.deskclock;
+
+import android.content.ContentProvider;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.database.SQLException;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.database.sqlite.SQLiteQueryBuilder;
+import android.net.Uri;
+import android.text.TextUtils;
+
+public class AlarmProvider extends ContentProvider {
+    private SQLiteOpenHelper mOpenHelper;
+
+    private static final int ALARMS = 1;
+    private static final int ALARMS_ID = 2;
+    private static final UriMatcher sURLMatcher = new UriMatcher(
+            UriMatcher.NO_MATCH);
+
+    static {
+        sURLMatcher.addURI("com.android.deskclock", "alarm", ALARMS);
+        sURLMatcher.addURI("com.android.deskclock", "alarm/#", ALARMS_ID);
+    }
+
+    private static class DatabaseHelper extends SQLiteOpenHelper {
+        private static final String DATABASE_NAME = "alarms.db";
+        private static final int DATABASE_VERSION = 5;
+
+        public DatabaseHelper(Context context) {
+            super(context, DATABASE_NAME, null, DATABASE_VERSION);
+        }
+
+        @Override
+        public void onCreate(SQLiteDatabase db) {
+            db.execSQL("CREATE TABLE alarms (" +
+                       "_id INTEGER PRIMARY KEY," +
+                       "hour INTEGER, " +
+                       "minutes INTEGER, " +
+                       "daysofweek INTEGER, " +
+                       "alarmtime INTEGER, " +
+                       "enabled INTEGER, " +
+                       "vibrate INTEGER, " +
+                       "message TEXT, " +
+                       "alert TEXT);");
+
+            // insert default alarms
+            String insertMe = "INSERT INTO alarms " +
+                    "(hour, minutes, daysofweek, alarmtime, enabled, vibrate, message, alert) " +
+                    "VALUES ";
+            db.execSQL(insertMe + "(8, 30, 31, 0, 0, 1, '', '');");
+            db.execSQL(insertMe + "(9, 00, 96, 0, 0, 1, '', '');");
+        }
+
+        @Override
+        public void onUpgrade(SQLiteDatabase db, int oldVersion, int currentVersion) {
+            if (Log.LOGV) Log.v(
+                    "Upgrading alarms database from version " +
+                    oldVersion + " to " + currentVersion +
+                    ", which will destroy all old data");
+            db.execSQL("DROP TABLE IF EXISTS alarms");
+            onCreate(db);
+        }
+    }
+
+    public AlarmProvider() {
+    }
+
+    @Override
+    public boolean onCreate() {
+        mOpenHelper = new DatabaseHelper(getContext());
+        return true;
+    }
+
+    @Override
+    public Cursor query(Uri url, String[] projectionIn, String selection,
+            String[] selectionArgs, String sort) {
+        SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
+
+        // Generate the body of the query
+        int match = sURLMatcher.match(url);
+        switch (match) {
+            case ALARMS:
+                qb.setTables("alarms");
+                break;
+            case ALARMS_ID:
+                qb.setTables("alarms");
+                qb.appendWhere("_id=");
+                qb.appendWhere(url.getPathSegments().get(1));
+                break;
+            default:
+                throw new IllegalArgumentException("Unknown URL " + url);
+        }
+
+        SQLiteDatabase db = mOpenHelper.getReadableDatabase();
+        Cursor ret = qb.query(db, projectionIn, selection, selectionArgs,
+                              null, null, sort);
+
+        if (ret == null) {
+            if (Log.LOGV) Log.v("Alarms.query: failed");
+        } else {
+            ret.setNotificationUri(getContext().getContentResolver(), url);
+        }
+
+        return ret;
+    }
+
+    @Override
+    public String getType(Uri url) {
+        int match = sURLMatcher.match(url);
+        switch (match) {
+            case ALARMS:
+                return "vnd.android.cursor.dir/alarms";
+            case ALARMS_ID:
+                return "vnd.android.cursor.item/alarms";
+            default:
+                throw new IllegalArgumentException("Unknown URL");
+        }
+    }
+
+    @Override
+    public int update(Uri url, ContentValues values, String where, String[] whereArgs) {
+        int count;
+        long rowId = 0;
+        int match = sURLMatcher.match(url);
+        SQLiteDatabase db = mOpenHelper.getWritableDatabase();
+        switch (match) {
+            case ALARMS_ID: {
+                String segment = url.getPathSegments().get(1);
+                rowId = Long.parseLong(segment);
+                count = db.update("alarms", values, "_id=" + rowId, null);
+                break;
+            }
+            default: {
+                throw new UnsupportedOperationException(
+                        "Cannot update URL: " + url);
+            }
+        }
+        if (Log.LOGV) Log.v("*** notifyChange() rowId: " + rowId + " url " + url);
+        getContext().getContentResolver().notifyChange(url, null);
+        return count;
+    }
+
+    @Override
+    public Uri insert(Uri url, ContentValues initialValues) {
+        if (sURLMatcher.match(url) != ALARMS) {
+            throw new IllegalArgumentException("Cannot insert into URL: " + url);
+        }
+
+        ContentValues values;
+        if (initialValues != null)
+            values = new ContentValues(initialValues);
+        else
+            values = new ContentValues();
+
+        if (!values.containsKey(Alarm.Columns.HOUR))
+            values.put(Alarm.Columns.HOUR, 0);
+
+        if (!values.containsKey(Alarm.Columns.MINUTES))
+            values.put(Alarm.Columns.MINUTES, 0);
+
+        if (!values.containsKey(Alarm.Columns.DAYS_OF_WEEK))
+            values.put(Alarm.Columns.DAYS_OF_WEEK, 0);
+
+        if (!values.containsKey(Alarm.Columns.ALARM_TIME))
+            values.put(Alarm.Columns.ALARM_TIME, 0);
+
+        if (!values.containsKey(Alarm.Columns.ENABLED))
+            values.put(Alarm.Columns.ENABLED, 0);
+
+        if (!values.containsKey(Alarm.Columns.VIBRATE))
+            values.put(Alarm.Columns.VIBRATE, 1);
+
+        if (!values.containsKey(Alarm.Columns.MESSAGE))
+            values.put(Alarm.Columns.MESSAGE, "");
+
+        if (!values.containsKey(Alarm.Columns.ALERT))
+            values.put(Alarm.Columns.ALERT, "");
+
+        SQLiteDatabase db = mOpenHelper.getWritableDatabase();
+        long rowId = db.insert("alarms", Alarm.Columns.MESSAGE, values);
+        if (rowId < 0) {
+            throw new SQLException("Failed to insert row into " + url);
+        }
+        if (Log.LOGV) Log.v("Added alarm rowId = " + rowId);
+
+        Uri newUrl = ContentUris.withAppendedId(Alarm.Columns.CONTENT_URI, rowId);
+        getContext().getContentResolver().notifyChange(newUrl, null);
+        return newUrl;
+    }
+
+    public int delete(Uri url, String where, String[] whereArgs) {
+        SQLiteDatabase db = mOpenHelper.getWritableDatabase();
+        int count;
+        long rowId = 0;
+        switch (sURLMatcher.match(url)) {
+            case ALARMS:
+                count = db.delete("alarms", where, whereArgs);
+                break;
+            case ALARMS_ID:
+                String segment = url.getPathSegments().get(1);
+                rowId = Long.parseLong(segment);
+                if (TextUtils.isEmpty(where)) {
+                    where = "_id=" + segment;
+                } else {
+                    where = "_id=" + segment + " AND (" + where + ")";
+                }
+                count = db.delete("alarms", where, whereArgs);
+                break;
+            default:
+                throw new IllegalArgumentException("Cannot delete from URL: " + url);
+        }
+
+        getContext().getContentResolver().notifyChange(url, null);
+        return count;
+    }
+}