Android Open Source - PubNubTest Pub Manager

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License

The source code is released under:

GNU General Public License

Java Source Code

// Copyrights Fahad Zafar 2013
// Email: zoalord12@gmail.com
//  www  .java  2  s. c o  m
package com.example.pubnubtest;

import java.util.Hashtable;
import com.pubnub.api.Callback;
import com.pubnub.api.Pubnub;
import com.pubnub.api.PubnubError;
import android.util.Log;

// This class performs the controller tasks. The purpose is to initialize PubNub
// and perform the subscribe and publish duties.
public class PubManager {
  // String tokens generated by PubNub.
  final String kPubKey = "pub-c-3aca05cd-54bb-4062-80de-346e5c804116";
  final String kSubKey = "sub-c-1224b9dc-5238-11e3-8615-02ee2ddab7fe";
  
  // Name of the channel on the account used for this demo.
  final String kChannel = "my_channel";

  // The pubNub object.
  Pubnub pubnub;
  
  // The caller initializing the object automatically subscribes to the
  // channel.
  public PubManager() {
    pubnub = new Pubnub(kPubKey, kSubKey, "", false);
    subscribe();
  }
  
  // The subscribe functionality.
  public void subscribe() {

    // Populate the data elements.
    Hashtable args = new Hashtable(1);
    args.put("channel", kChannel);
    try {
      pubnub.subscribe(args, new Callback() {
        @Override
        public void connectCallback(String channel, Object message) {
          Log.w("Sucess", " Subscribed .....");
        }
        @Override
        public void disconnectCallback(String channel, Object message) {
        }
        @Override
        public void reconnectCallback(String channel, Object message) {
        }
        @Override
        public void successCallback(String channel, Object message) {
          // The message is returned and using the length of the 
          // message we can identify which one has been updated to the
          // subscriber.
          String data = message.toString();
          int index = data.length() / 250 - 1;
          
          long currentTime = Benchmark.GetTimeDifference(index);
          MainActivity.VALUES[index] = currentTime;
          MainActivity.UpdateChart(index);
        }
        @Override
        public void errorCallback(String channel, PubnubError error) {
        }
      });

    } catch (Exception e) {
      Log.w("PubManager","Error in subscribe:" + e.getMessage());
    }
  }

  public void publish(String data) {

    try {
      Hashtable args = new Hashtable(2);
      args.put("message", data);
      args.put("channel", kChannel);

      pubnub.publish(args, new Callback() {
        @Override
        public void successCallback(String channel, Object message) {

        }
        @Override
        public void errorCallback(String channel, PubnubError error) {
          Log.w("PubManager","Error:" + error.getErrorString());
          
          // If any of the measurements fail, just reset the whole
          // benchmark for now.
          Benchmark.ResetAll();
        }
      });
    } catch (Exception e) {
      Log.w("PubManager", "Error in publish");
      e.printStackTrace();
    }

  }
}

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