com.mycheez.gcm.RegistrationIntentService.java Source code

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Here is the source code for com.mycheez.gcm.RegistrationIntentService.java

Source

package com.mycheez.gcm;

/**
 * Created by ahetawal on 7/26/15.
 */
/**
 * Copyright 2015 Google Inc. All Rights Reserved.
 *
 * 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.
 */

import android.app.IntentService;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;

import com.firebase.client.Firebase;
import com.firebase.client.FirebaseError;
import com.google.android.gms.gcm.GcmPubSub;
import com.google.android.gms.gcm.GoogleCloudMessaging;
import com.google.android.gms.iid.InstanceID;
import com.mycheez.R;
import com.mycheez.application.MyCheezApplication;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

public class RegistrationIntentService extends IntentService {

    private static final String TAG = "RegIntentService";
    private static final String[] TOPICS = { "global" };

    public RegistrationIntentService() {
        super(TAG);
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
        String userId = sharedPreferences.getString(GcmPreferencesContants.USER_ID_SHARED_PREF_KEY,
                MyCheezApplication.getCurrentUser().getFacebookId());
        try {
            // In the (unlikely) event that multiple refresh operations occur simultaneously,
            // ensure that they are processed sequentially.
            synchronized (TAG) {
                // [START register_for_gcm]
                // Initially this call goes out to the network to retrieve the token, subsequent calls
                // are local.
                // [START get_token]
                InstanceID instanceID = InstanceID.getInstance(this);
                String token = instanceID.getToken(getString(R.string.gcm_defaultSenderId),
                        GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);
                // [END get_token]
                Log.i(TAG, "GCM Registration Token: " + token);

                sendRegistrationToServer(token, userId, sharedPreferences);
                // [END register_for_gcm]
            }
        } catch (Exception e) {
            Log.d(TAG, "Failed to complete token refresh", e);
            // If an exception happens while fetching the new token or updating our registration data
            // on a third-party server, this ensures that we'll attempt the update at a later time.
            sharedPreferences.edit().putBoolean(GcmPreferencesContants.SENT_TOKEN_TO_SERVER, false).apply();
            // Notify UI that registration has completed, so the progress indicator can be hidden.
            Intent registrationComplete = new Intent(GcmPreferencesContants.REGISTRATION_COMPLETE);
            LocalBroadcastManager.getInstance(this).sendBroadcast(registrationComplete);
        }

    }

    /**
     * Persist registration to third-party servers.
     *
     * Modify this method to associate the user's GCM registration token with any server-side account
     * maintained by your application.
     *
     * @param token The new token.
     * @param sharedPreferences
     */
    private void sendRegistrationToServer(String token, String userId, final SharedPreferences sharedPreferences) {
        Firebase myCheezRef = MyCheezApplication.getMyCheezFirebaseRef();
        Firebase userPresenceNode = myCheezRef.child("presence").child(userId);
        final LocalBroadcastManager broadcastManager = LocalBroadcastManager.getInstance(this);
        Map<String, Object> deviceToken = new HashMap<String, Object>();
        deviceToken.put("gcmToken", token);
        userPresenceNode.updateChildren(deviceToken, new Firebase.CompletionListener() {
            @Override
            public void onComplete(FirebaseError firebaseError, Firebase firebase) {
                if (firebaseError == null) {
                    // You should store a boolean that indicates whether the generated token has been
                    // sent to your server. If the boolean is false, send the token to your server,
                    // otherwise your server should have already received the token.
                    sharedPreferences.edit().putBoolean(GcmPreferencesContants.SENT_TOKEN_TO_SERVER, true).apply();
                } else {
                    sharedPreferences.edit().putBoolean(GcmPreferencesContants.SENT_TOKEN_TO_SERVER, false).apply();
                }
                // Notify UI that registration has completed, so the progress indicator can be hidden.
                Intent registrationComplete = new Intent(GcmPreferencesContants.REGISTRATION_COMPLETE);
                broadcastManager.sendBroadcast(registrationComplete);
            }
        });

    }

    /**
     * Subscribe to any GCM topics of interest, as defined by the TOPICS constant.
     *
     * @param token GCM token
     * @throws IOException if unable to reach the GCM PubSub service
     */
    // [START subscribe_topics]
    private void subscribeTopics(String token) throws IOException {
        for (String topic : TOPICS) {
            GcmPubSub pubSub = GcmPubSub.getInstance(this);
            pubSub.subscribe(token, "/topics/" + topic, null);
        }
    }
    // [END subscribe_topics]

}