com.google.android.gcm.demo.app.GCMIntentService.java Source code

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Here is the source code for com.google.android.gcm.demo.app.GCMIntentService.java

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/*
 * 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 com.google.android.gcm.demo.app;

import static com.google.android.gcm.demo.app.CommonUtilities.SENDER_ID;
import static com.google.android.gcm.demo.app.CommonUtilities.displayMessage;

import java.io.IOException;
import java.util.ArrayList;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.net.http.AndroidHttpClient;
import android.util.Log;

import com.google.android.gcm.GCMBaseIntentService;
import com.google.android.gcm.GCMRegistrar;

/**
 * IntentService responsible for handling GCM messages.
 */
public class GCMIntentService extends GCMBaseIntentService {

    @SuppressWarnings("hiding")
    private static final String TAG = "GCMIntentService";

    public GCMIntentService() {
        super(SENDER_ID);
    }

    @Override
    protected void onRegistered(Context context, String registrationId) {
        Log.i(TAG, "Device registered: regId = " + registrationId);
        displayMessage(context, getString(R.string.gcm_registered));
        // TODO change to phoneId later :-q
        ServerUtilities.register(context, registrationId, "lenovo");
    }

    @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");
        }
    }

    @Override
    protected void onMessage(Context context, Intent intent) {
        String api = intent.getStringExtra("api");
        Log.i(TAG, "Received message: " + api);

        // get list of all mp3 files now
        AndroidHttpClient client = null;
        try {
            client = AndroidHttpClient.newInstance("Android");

            HttpGet httpGet = new HttpGet(api);
            HttpResponse response;
            try {
                response = client.execute(httpGet);
                String json = EntityUtils.toString(response.getEntity());
                JSONArray array = new JSONArray(json);
                ArrayList<String> urls = new ArrayList<String>();
                for (int i = 0; i < array.length(); ++i) {
                    String mp3Link = array.getString(i);
                    urls.add(mp3Link);
                }

                // start DownloadService
                Intent itent = new Intent(this, DownloadService.class);
                itent.putExtra(CommonUtilities.EXTRA_URLS, urls);
                startService(itent);
            } catch (IOException e) {
                e.printStackTrace();
            } catch (JSONException e) {
                e.printStackTrace();
            }

        } finally {
            if (client != null) {
                client.close();
            }
        }
    }

    @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, String data) {
        int icon = R.drawable.ic_stat_gcm;
        long when = System.currentTimeMillis();
        NotificationManager notificationManager = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.cancel(0);

        Notification notification = new Notification(icon, message, when);
        String title = context.getString(R.string.app_name);
        Intent notificationIntent = new Intent(context, DemoActivity.class);
        notificationIntent.putExtra(CommonUtilities.EXTRA_TEAM_IN_JSON, data);
        // 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,
                PendingIntent.FLAG_UPDATE_CURRENT);
        notification.setLatestEventInfo(context, title, message, intent);
        notification.flags = Notification.FLAG_AUTO_CANCEL;
        notificationManager.notify(0, notification);
    }

}