nl.johndekroon.dma.GCMIntentService.java Source code

Java tutorial

Introduction

Here is the source code for nl.johndekroon.dma.GCMIntentService.java

Source

/*
 * Copyright 2012 Google Inc.
 *
 * 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 nl.johndekroon.dma;

import static nl.johndekroon.dma.CommonUtilities.SENDER_ID;
import static nl.johndekroon.dma.CommonUtilities.displayMessage;

import org.json.JSONException;
import org.json.JSONObject;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Vibrator;
import android.preference.PreferenceManager;
import android.util.Log;

import com.google.android.gcm.GCMBaseIntentService;
import com.google.android.gcm.GCMRegistrar;
import nl.johndekroon.dma.R;
import nl.johndekroon.dma.MainActivity;

/**
 * IntentService responsible for handling GCM messages.
 */
public class GCMIntentService extends GCMBaseIntentService {
    private SharedPreferences prefs;
    private static final String TAG = "GCMIntentService";

    public GCMIntentService() {
        super(SENDER_ID);
    }

    @Override
    protected void onRegistered(Context context, String registrationId) {
        prefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
        Log.i(TAG, "Device registered: regId = " + registrationId);
        displayMessage(context, getString(R.string.gcm_registered));
        ServerUtilities.register(context, registrationId, prefs.getString("user", ""), prefs.getString("pass", ""));
    }

    @Override
    protected void onUnregistered(Context context, String registrationId) {
        Log.i(TAG, "Device unregistered");
        displayMessage(context, getString(R.string.gcm_unregistered));
        if (GCMRegistrar.isRegisteredOnServer(context)) {
            ServerUtilities.unregister(context, registrationId);
        } else {
            // This callback results from the call to unregister made on
            // ServerUtilities when the registration to the server failed.
            Log.i(TAG, "Ignoring unregister callback");
        }
    }

    /*
    *   what to do on receiving the message. 
    */

    @Override
    protected void onMessage(Context context, Intent intent) {
        prefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
        prefs.getBoolean("muteAll", false);
        String data = intent.getStringExtra("message");
        JSONObject datajson;
        try {
            datajson = new JSONObject(data);
            String message = datajson.get("message").toString();
            String type = datajson.get("type").toString();
            String monitor = datajson.get("monitor").toString();
            DatabaseDAO datasource = new DatabaseDAO(this);
            datasource.open();

            //On getting a warning or an OK
            if (type.equals("WARNING") || type.equals("OK")) {
                if (prefs.getBoolean("muteAll", false) != true) {
                    Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
                    long[] pattern = { 0, 500, 200, 200 };

                    // Only perform this pattern one time (-1 means "do not repeat")
                    v.vibrate(pattern, -1);

                    Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
                    if (alert == null) { // I can't see this ever being null (as always have a default notification) but just incase
                        // alert backup is null, using 2nd backup
                        alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
                    }
                    Ringtone r = RingtoneManager.getRingtone(getApplicationContext(), alert);
                    r.play();
                }
                datasource.updateScenario(monitor, type);
                generateNotification(context, message);

            }

            //on receiving an error
            else if (type.equals("ERROR")) {
                System.out.println("bbbrrrrrrr brrrrrr");
                Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
                long[] pattern = { 0, 1000, 50, 200, 50, 200, 50, 1200 };

                // Only perform this pattern one time (-1 means "do not repeat")
                v.vibrate(pattern, -1);

                if (prefs.getBoolean("muteAll", false) != true) {
                    Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
                    if (alert == null) {
                        alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
                    }
                    Ringtone r = RingtoneManager.getRingtone(getApplicationContext(), alert);
                    r.play();
                }
                datasource.updateScenario(monitor, type);
                generateNotification(context, message);
            }

            //on register, make a new scenario.
            else if (type.equals("REGISTER")) {
                datasource.createScenario(monitor);
            }

            System.out.println(intent.getStringExtra("message"));
            Log.i(TAG, "Received message");

            //No idea why this part isn't working. It should.

            //           if(type.equals("ERROR"))
            //           {
            //              displayMessage(context, message, "error");
            //           }
            //           else
            //           {
            displayMessage(context, message);
            //           }
        } catch (JSONException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
    }

    @Override
    protected void onDeletedMessages(Context context, int total) {
        Log.i(TAG, "Received deleted messages notification");
        String message = getString(R.string.gcm_deleted, total);
        displayMessage(context, message);
        // notifies user
        generateNotification(context, message);
    }

    @Override
    public void onError(Context context, String errorId) {
        Log.i(TAG, "Received error: " + errorId);
        displayMessage(context, getString(R.string.gcm_error, errorId));
    }

    @Override
    protected boolean onRecoverableError(Context context, String errorId) {
        // log message
        Log.i(TAG, "Received recoverable error: " + errorId);
        displayMessage(context, getString(R.string.gcm_recoverable_error, errorId));
        return super.onRecoverableError(context, errorId);
    }

    /**
     * Issues a notification to inform the user that server has sent a message.
     */
    private static void generateNotification(Context context, String message) {
        int icon = R.drawable.ic_stat_gcm;
        long when = System.currentTimeMillis();
        NotificationManager notificationManager = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = new Notification(icon, message, when);
        String title = context.getString(R.string.app_name);
        Intent notificationIntent = new Intent(context, MainActivity.class);
        // set intent so it does not start a new activity
        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent intent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
        notification.setLatestEventInfo(context, title, message, intent);
        notification.flags |= Notification.FLAG_AUTO_CANCEL;
        notificationManager.notify(0, notification);
    }

}