Android Open Source - android-udoo-rover Twitter Receiver

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License

The source code is released under:

Copyright (c) 2014, Emanuele Palazzetti and contributors All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the followin...

Java Source Code

package me.palazzetti.adkrover.twitter;
//from  ww  w  .j  ava 2 s.  c  o  m
import android.util.Log;

import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.util.Arrays;
import java.util.List;

import me.palazzetti.adkrover.utils.UrlConnector;

/**
 * Mocks Twitter receiver: it uses only id and text fields.
 */

public class TwitterReceiver {
    private final static String TAG_LOG = "RoverNetwork";
    private final static String STREAM_API = "http://droidcon.evonove.it/api/tweets/?";

    public JSONArray getTwitterStream(long lastFetchedId) {
        JSONArray twitterTimeline = new JSONArray();

        try {
            // Requires Twitter timeline
            UrlConnector twitterConnector = new UrlConnector(buildQuery(lastFetchedId));
            twitterConnector.addHeader("Content-Type", "application/json");

            // Do GET and grab tweets into a JSONArray
            int statusCode = twitterConnector.get();

            if (statusCode == HttpURLConnection.HTTP_OK) {
                twitterTimeline = new JSONArray(twitterConnector.getResponse());
            } else {
                Log.e(TAG_LOG, String.valueOf(statusCode));
            }

            // Close connection
            twitterConnector.disconnect();

        } catch (UnsupportedEncodingException e) {
            Log.e(TAG_LOG, e.getMessage());
        } catch (IllegalStateException e) {
            Log.e(TAG_LOG, e.getMessage());
        } catch (MalformedURLException e) {
            Log.e(TAG_LOG, e.getMessage());
        } catch (IOException e) {
            Log.e(TAG_LOG, e.getMessage());
        } catch (JSONException e) {
            Log.e(TAG_LOG, e.getMessage());
        }

        return twitterTimeline;
    }

    private String buildQuery(long lastFetchedId) {
        List<BasicNameValuePair> parameters = Arrays.asList(
                new BasicNameValuePair("id", String.valueOf(lastFetchedId)));

        return STREAM_API + URLEncodedUtils.format(parameters, "UTF-8");
    }
}

Java Source Code List

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