com.backendless.messaging.AndroidHandler Maven / Gradle / Ivy

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Android SDK used by developers to provide Backendless API in apps.
There is a newer version: 3.1.0
/*
 * ********************************************************************************************************************
 *  
 *  BACKENDLESS.COM CONFIDENTIAL
 *  

 *  ********************************************************************************************************************
 *  

 *  Copyright 2012 BACKENDLESS.COM. All Rights Reserved.
 *  

 *  NOTICE: All information contained herein is, and remains the property of Backendless.com and its suppliers,
 *  if any. The intellectual and technical concepts contained herein are proprietary to Backendless.com and its
 *  suppliers and may be covered by U.S. and Foreign Patents, patents in process, and are protected by trade secret
 *  or copyright law. Dissemination of this information or reproduction of this material is strictly forbidden
 *  unless prior written permission is obtained from Backendless.com.
 *  
 *  ********************************************************************************************************************
 */

package com.backendless.messaging;

import android.os.Handler;
import com.backendless.Backendless;
import com.backendless.Subscription;
import com.backendless.async.callback.AsyncCallback;
import com.backendless.exceptions.BackendlessException;
import com.backendless.exceptions.BackendlessFault;

import java.util.List;

public class AndroidHandler implements IMessageHandler
{
  private Handler handler;
  private Runnable subscriptionThread;

  public AndroidHandler( final AsyncCallback> subscriptionResponder, final Subscription subscription )
  {
    handler = new Handler( new Handler.Callback()
    {
      @Override
      @SuppressWarnings( "unchecked" )
      public boolean handleMessage( android.os.Message message )
      {
        if( subscriptionResponder != null )
          if( message.obj instanceof BackendlessException )
            subscriptionResponder.handleFault( new BackendlessFault( (BackendlessException) message.obj ) );
          else
            subscriptionResponder.handleResponse( (List) message.obj );

        return true;
      }
    } );

    subscriptionThread = new Runnable()
    {
      @Override
      public void run()
      {
        android.os.Message message = new android.os.Message();

        try
        {
          List messages = Backendless.Messaging.pollMessages( subscription.getChannelName(), subscription.getSubscriptionId() );

          if( !messages.isEmpty() )
          {
            message.obj = messages;
            handler.sendMessage( message );
          }
        }
        catch( BackendlessException e )
        {
          message.obj = e;
          handler.sendMessage( message );
        }
      }
    };
  }

  @Override
  public Runnable getSubscriptionThread()
  {
    return subscriptionThread;
  }
}