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/*
* Copyright (C) 2013 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.provider;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.net.Uri;
import android.text.TextUtils;
import com.android.deskclock.LogUtils;
import com.android.deskclock.data.Weekdays;
import java.util.Calendar;
/**
* Helper class for opening the database from multiple providers. Also provides
* some common functionality.
*/
class ClockDatabaseHelper extends SQLiteOpenHelper {
/**
* Original Clock Database.
**/
private static final int VERSION_5 = 5;
/**
* Added alarm_instances table
* Added selected_cities table
* Added DELETE_AFTER_USE column to alarms table
*/
private static final int VERSION_6 = 6;
/**
* Added alarm settings to instance table.
*/
private static final int VERSION_7 = 7;
/**
* Removed selected_cities table.
*/
private static final int VERSION_8 = 8;
// This creates a default alarm at 8:30 for every Mon,Tue,Wed,Thu,Fri
private static final String DEFAULT_ALARM_1 = "(8, 30, 31, 0, 1, '', NULL, 0);";
// This creates a default alarm at 9:30 for every Sat,Sun
private static final String DEFAULT_ALARM_2 = "(9, 00, 96, 0, 1, '', NULL, 0);";
// Database and table names
static final String DATABASE_NAME = "alarms.db";
static final String OLD_ALARMS_TABLE_NAME = "alarms";
static final String ALARMS_TABLE_NAME = "alarm_templates";
static final String INSTANCES_TABLE_NAME = "alarm_instances";
private static final String SELECTED_CITIES_TABLE_NAME = "selected_cities";
private static void createAlarmsTable(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + ALARMS_TABLE_NAME + " (" +
ClockContract.AlarmsColumns._ID + " INTEGER PRIMARY KEY," +
ClockContract.AlarmsColumns.HOUR + " INTEGER NOT NULL, " +
ClockContract.AlarmsColumns.MINUTES + " INTEGER NOT NULL, " +
ClockContract.AlarmsColumns.DAYS_OF_WEEK + " INTEGER NOT NULL, " +
ClockContract.AlarmsColumns.ENABLED + " INTEGER NOT NULL, " +
ClockContract.AlarmsColumns.VIBRATE + " INTEGER NOT NULL, " +
ClockContract.AlarmsColumns.LABEL + " TEXT NOT NULL, " +
ClockContract.AlarmsColumns.RINGTONE + " TEXT, " +
ClockContract.AlarmsColumns.DELETE_AFTER_USE + " INTEGER NOT NULL DEFAULT 0);");
LogUtils.i("Alarms Table created");
}
private static void createInstanceTable(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + INSTANCES_TABLE_NAME + " (" +
ClockContract.InstancesColumns._ID + " INTEGER PRIMARY KEY," +
ClockContract.InstancesColumns.YEAR + " INTEGER NOT NULL, " +
ClockContract.InstancesColumns.MONTH + " INTEGER NOT NULL, " +
ClockContract.InstancesColumns.DAY + " INTEGER NOT NULL, " +
ClockContract.InstancesColumns.HOUR + " INTEGER NOT NULL, " +
ClockContract.InstancesColumns.MINUTES + " INTEGER NOT NULL, " +
ClockContract.InstancesColumns.VIBRATE + " INTEGER NOT NULL, " +
ClockContract.InstancesColumns.LABEL + " TEXT NOT NULL, " +
ClockContract.InstancesColumns.RINGTONE + " TEXT, " +
ClockContract.InstancesColumns.ALARM_STATE + " INTEGER NOT NULL, " +
ClockContract.InstancesColumns.ALARM_ID + " INTEGER REFERENCES " +
ALARMS_TABLE_NAME + "(" + ClockContract.AlarmsColumns._ID + ") " +
"ON UPDATE CASCADE ON DELETE CASCADE" +
");");
LogUtils.i("Instance table created");
}
public ClockDatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, VERSION_8);
}
@Override
public void onCreate(SQLiteDatabase db) {
createAlarmsTable(db);
createInstanceTable(db);
// insert default alarms
LogUtils.i("Inserting default alarms");
String cs = ", "; //comma and space
String insertMe = "INSERT INTO " + ALARMS_TABLE_NAME + " (" +
ClockContract.AlarmsColumns.HOUR + cs +
ClockContract.AlarmsColumns.MINUTES + cs +
ClockContract.AlarmsColumns.DAYS_OF_WEEK + cs +
ClockContract.AlarmsColumns.ENABLED + cs +
ClockContract.AlarmsColumns.VIBRATE + cs +
ClockContract.AlarmsColumns.LABEL + cs +
ClockContract.AlarmsColumns.RINGTONE + cs +
ClockContract.AlarmsColumns.DELETE_AFTER_USE + ") VALUES ";
db.execSQL(insertMe + DEFAULT_ALARM_1);
db.execSQL(insertMe + DEFAULT_ALARM_2);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int currentVersion) {
LogUtils.v("Upgrading alarms database from version %d to %d", oldVersion, currentVersion);
if (oldVersion <= VERSION_7) {
// This was not used in VERSION_7 or prior, so we can just drop it.
db.execSQL("DROP TABLE IF EXISTS " + SELECTED_CITIES_TABLE_NAME + ";");
}
if (oldVersion <= VERSION_6) {
// This was not used in VERSION_6 or prior, so we can just drop it.
db.execSQL("DROP TABLE IF EXISTS " + INSTANCES_TABLE_NAME + ";");
// Create new alarms table and copy over the data
createAlarmsTable(db);
createInstanceTable(db);
LogUtils.i("Copying old alarms to new table");
final String[] OLD_TABLE_COLUMNS = {
"_id",
"hour",
"minutes",
"daysofweek",
"enabled",
"vibrate",
"message",
"alert",
};
try (Cursor cursor = db.query(OLD_ALARMS_TABLE_NAME, OLD_TABLE_COLUMNS,
null, null, null, null, null)) {
final Calendar currentTime = Calendar.getInstance();
while (cursor != null && cursor.moveToNext()) {
final Alarm alarm = new Alarm();
alarm.id = cursor.getLong(0);
alarm.hour = cursor.getInt(1);
alarm.minutes = cursor.getInt(2);
alarm.daysOfWeek = Weekdays.fromBits(cursor.getInt(3));
alarm.enabled = cursor.getInt(4) == 1;
alarm.vibrate = cursor.getInt(5) == 1;
alarm.label = cursor.getString(6);
final String alertString = cursor.getString(7);
if ("silent".equals(alertString)) {
alarm.alert = Alarm.NO_RINGTONE_URI;
} else {
alarm.alert =
TextUtils.isEmpty(alertString) ? null : Uri.parse(alertString);
}
// Save new version of alarm and create alarm instance for it
db.insert(ALARMS_TABLE_NAME, null, Alarm.createContentValues(alarm));
if (alarm.enabled) {
AlarmInstance newInstance = alarm.createInstanceAfter(currentTime);
db.insert(INSTANCES_TABLE_NAME, null,
AlarmInstance.createContentValues(newInstance));
}
}
}
LogUtils.i("Dropping old alarm table");
db.execSQL("DROP TABLE IF EXISTS " + OLD_ALARMS_TABLE_NAME + ";");
}
}
long fixAlarmInsert(ContentValues values) {
// Why are we doing this? Is this not a programming bug if we try to
// insert an already used id?
final SQLiteDatabase db = getWritableDatabase();
db.beginTransaction();
long rowId = -1;
try {
// Check if we are trying to re-use an existing id.
final Object value = values.get(ClockContract.AlarmsColumns._ID);
if (value != null) {
long id = (Long) value;
if (id > -1) {
final String[] columns = {ClockContract.AlarmsColumns._ID};
final String selection = ClockContract.AlarmsColumns._ID + " = ?";
final String[] selectionArgs = {String.valueOf(id)};
try (Cursor cursor = db.query(ALARMS_TABLE_NAME, columns, selection,
selectionArgs, null, null, null)) {
if (cursor.moveToFirst()) {
// Record exists. Remove the id so sqlite can generate a new one.
values.putNull(ClockContract.AlarmsColumns._ID);
}
}
}
}
rowId = db.insert(ALARMS_TABLE_NAME, ClockContract.AlarmsColumns.RINGTONE, values);
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
if (rowId < 0) {
throw new SQLException("Failed to insert row");
}
LogUtils.v("Added alarm rowId = " + rowId);
return rowId;
}
}
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