Android Open Source - StreamHub-Android-Reviews-App Stream Client

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License

The source code is released under:

MIT License

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Java Source Code

package livefyre.streamhub;
//  w  ww  . jav a2  s . c o m
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;

import org.json.JSONException;
import org.json.JSONObject;

import android.net.Uri;
import android.net.Uri.Builder;
import android.util.Log;

import com.loopj.android.http.AsyncHttpResponseHandler;

public class StreamClient {
  public static String generateStreamUrl(String networkId,
      String collectionId, String eventId) throws MalformedURLException {
    final Builder uriBuilder = new Uri.Builder()
        .scheme(Config.scheme)
        .authority(
            Config.streamDomain + "."
                + Config.getHostname(networkId))
        .appendPath("v3.1").appendPath("collection")
        .appendPath(collectionId).appendPath("").appendPath(eventId);

    return uriBuilder.toString();
  }

  /**
   * Performs a long poll request to the Livefyre's stream endpoint
   * 
   * @param networkId
   *            The collection's network as identified by domain, i.e.
   *            livefyre.com.
   * @param collectionId
   *            The Id of the collection
   * @param eventId
   *            The last eventId that was returned from either stream or
   *            bootstrap. Event time a new eventId is returned, it should be
   *            used in the next stream request.
   * @param handler
   *            Response handler
   * @throws UnsupportedEncodingException
   * @throws MalformedURLException
   */
  public static void pollStreamEndpoint(final String networkId,
      final String collectionId, final String eventId,
      final AsyncHttpResponseHandler handler) throws IOException,
      JSONException {
    final String streamEndpoint = generateStreamUrl(networkId,
        collectionId, eventId);
    HttpClient.client.get(streamEndpoint, new AsyncHttpResponseHandler() {
      @Override
      public void onSuccess(String responce) {
        handler.onSuccess(responce);
        try {

          if (responce != null) {
            Log.d("Stream Clint Call", "Success" + responce);
            JSONObject responceJson = new JSONObject(responce);
            String lastEvent;
            if (responceJson.has("data")) {
              lastEvent = responceJson.getJSONObject("data")
                  .getString("maxEventId");

              pollStreamEndpoint(networkId, collectionId,
                  lastEvent, handler);
            }

          }
        } catch (JSONException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        } catch (Exception e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }

      }

      @Override
      public void onFailure(Throwable error, String content) {
        super.onFailure(error, content);
        try {
          pollStreamEndpoint(networkId, collectionId, eventId,
              handler);
        } catch (IOException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        } catch (JSONException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
      }

    });
  }
}

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