SynchronizationIntervalReceiver.java

/*
 * VoIP.ms SMS
 * Copyright (C) 2015-2016 Michael Kourlas
 *
 * 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 net.kourlas.voipms_sms.receivers;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.util.Log;
import net.kourlas.voipms_sms.db.Database;
import net.kourlas.voipms_sms.preferences.Preferences;

public class SynchronizationIntervalReceiver extends BroadcastReceiver {
    private static final String TAG = "SyncIntervalReceiver";

    public static void setupSynchronizationInterval(
        Context applicationContext)
    {
        Preferences preferences = Preferences.getInstance(applicationContext);
        AlarmManager alarmManager = (AlarmManager) applicationContext
            .getSystemService(Context.ALARM_SERVICE);
        Intent intent = new Intent(applicationContext,
                                   SynchronizationIntervalReceiver.class);
        PendingIntent pendingIntent =
            PendingIntent.getBroadcast(applicationContext, 0, intent, 0);

        alarmManager.cancel(pendingIntent);

        long syncInterval = (long) (preferences.getSyncInterval()
                                    * (24 * 60 * 60 * 1000));
        if (syncInterval != 0) {
            long nextSyncTime = preferences.getLastCompleteSyncTime()
                                + syncInterval;

            long now = System.currentTimeMillis();
            if (nextSyncTime <= now) {
                Log.v("SyncIntervalReceiver",
                      "Synchronizing database: nextSyncTime = "
                      + nextSyncTime + " but now = " + now);
                Database.getInstance(applicationContext).synchronize(
                    false, false, null);
                return;
            }

            Log.v("SyncIntervalReceiver", "Set alarm: nextSyncTime = "
                                          + nextSyncTime);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                alarmManager.setAndAllowWhileIdle(
                    AlarmManager.RTC_WAKEUP, nextSyncTime,
                    pendingIntent);
            } else {
                alarmManager.set(
                    AlarmManager.RTC_WAKEUP, nextSyncTime,
                    pendingIntent);
            }
        }
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.v(TAG, "Received broadcast");
        Database.getInstance(context.getApplicationContext()).synchronize(
            false, false, null);
    }
}