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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.exchange.service;
     18 
     19 import android.accounts.AccountManager;
     20 import android.app.IntentService;
     21 import android.content.Context;
     22 import android.content.Intent;
     23 import android.util.Log;
     24 
     25 import com.android.emailcommon.Logging;
     26 import com.android.exchange.Eas;
     27 import com.android.exchange.ExchangeService;
     28 
     29 /**
     30  * The service that really handles broadcast intents on a worker thread.
     31  *
     32  * We make it a service, because:
     33  * <ul>
     34  *   <li>So that it's less likely for the process to get killed.
     35  *   <li>Even if it does, the Intent that have started it will be re-delivered by the system,
     36  *   and we can start the process again.  (Using {@link #setIntentRedelivery}).
     37  * </ul>
     38  */
     39 public class ExchangeBroadcastProcessorService extends IntentService {
     40     // Action used for BroadcastReceiver entry point
     41     private static final String ACTION_BROADCAST = "broadcast_receiver";
     42 
     43     public ExchangeBroadcastProcessorService() {
     44         // Class name will be the thread name.
     45         super(ExchangeBroadcastProcessorService.class.getName());
     46         // Intent should be redelivered if the process gets killed before completing the job.
     47         setIntentRedelivery(true);
     48     }
     49 
     50     /**
     51      * Entry point for {@link ExchangeBroadcastReceiver}.
     52      */
     53     public static void processBroadcastIntent(Context context, Intent broadcastIntent) {
     54         Intent i = new Intent(context, ExchangeBroadcastProcessorService.class);
     55         i.setAction(ACTION_BROADCAST);
     56         i.putExtra(Intent.EXTRA_INTENT, broadcastIntent);
     57         context.startService(i);
     58     }
     59 
     60     @Override
     61     protected void onHandleIntent(Intent intent) {
     62         // Dispatch from entry point
     63         final String action = intent.getAction();
     64         if (ACTION_BROADCAST.equals(action)) {
     65             final Intent broadcastIntent = intent.getParcelableExtra(Intent.EXTRA_INTENT);
     66             final String broadcastAction = broadcastIntent.getAction();
     67 
     68             if (Intent.ACTION_BOOT_COMPLETED.equals(broadcastAction)) {
     69                 onBootCompleted();
     70             } else if (AccountManager.LOGIN_ACCOUNTS_CHANGED_ACTION.equals(broadcastAction)) {
     71                 if (Eas.USER_LOG) {
     72                     Log.d(Logging.LOG_TAG, "Login accounts changed; reconciling...");
     73                 }
     74                 ExchangeService.runAccountReconcilerSync(this);
     75             }
     76        }
     77     }
     78 
     79     /**
     80      * Handles {@link Intent#ACTION_BOOT_COMPLETED}.  Called on a worker thread.
     81      */
     82     private void onBootCompleted() {
     83         startService(new Intent(this, ExchangeService.class));
     84     }
     85 }
     86