Java tutorial
/* * Copyright 2012 Javier Prez Pacheco and Francisco Daz Rodriguez * TweetTopics 2.0 * javielinux@gmail.com * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.javielinux.api.loaders; import android.content.Context; import android.location.Location; import android.util.Log; import com.javielinux.api.AsynchronousLoader; import com.javielinux.api.request.UploadTwitlongerRequest; import com.javielinux.api.response.BaseResponse; import com.javielinux.api.response.ErrorResponse; import com.javielinux.api.response.UploadTwitlongerResponse; import com.javielinux.utils.LocationUtils; import com.javielinux.utils.Utils; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserFactory; import twitter4j.GeoLocation; import twitter4j.StatusUpdate; import twitter4j.Twitter; import java.io.StringReader; import java.util.ArrayList; import java.util.List; public class UploadTwitlongerLoader extends AsynchronousLoader<BaseResponse> { private Twitter twitter; private String tweet_text; private long tweet_id; private boolean use_geolocation; public UploadTwitlongerLoader(Context context, UploadTwitlongerRequest request) { super(context); this.twitter = request.getTwitter(); this.tweet_text = request.getTweetText(); this.tweet_id = request.getTweetId(); this.use_geolocation = request.getUseGeolocation(); } @Override public BaseResponse loadInBackground() { //TODO: Comprobar el valor devuelto con el valor esperado (error - ready) y el parmetro user_geolocation try { Log.d(Utils.TAG, "Enviando a twitlonger: " + tweet_text); String textTwitLonger = ""; HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://www.twitlonger.com/api_post"); try { List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(4); nameValuePairs.add(new BasicNameValuePair("application", "tweettopics")); nameValuePairs.add(new BasicNameValuePair("api_key", "f7y8lgz31srR46sr")); nameValuePairs.add(new BasicNameValuePair("username", twitter.getScreenName())); nameValuePairs.add(new BasicNameValuePair("message", tweet_text)); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF-8")); HttpResponse httpResponse = httpclient.execute(httppost); String xml = EntityUtils.toString(httpResponse.getEntity()); XmlPullParserFactory factory = XmlPullParserFactory.newInstance(); factory.setNamespaceAware(true); XmlPullParser x = factory.newPullParser(); x.setInput(new StringReader(xml)); String error = ""; int eventType = x.getEventType(); while (eventType != XmlPullParser.END_DOCUMENT) { if (eventType == XmlPullParser.START_TAG) { if (x.getName().equals("error")) { error = x.nextText(); } if (x.getName().equals("content")) { textTwitLonger = x.nextText(); Log.d(Utils.TAG, "Enviando a twitter: " + textTwitLonger); } } eventType = x.next(); } if (!error.equals("")) { Log.d(Utils.TAG, "Error: " + error); ErrorResponse response = new ErrorResponse(); response.setError(error); return response; } } catch (Exception e) { e.printStackTrace(); ErrorResponse response = new ErrorResponse(); response.setError(e, e.getMessage()); return response; } UploadTwitlongerResponse response = new UploadTwitlongerResponse(); if (!textTwitLonger.equals("")) { StatusUpdate statusUpdate = new StatusUpdate(textTwitLonger); if (use_geolocation) { Location loc = LocationUtils.getLastLocation(getContext()); GeoLocation gl = new GeoLocation(loc.getLatitude(), loc.getLongitude()); statusUpdate.setLocation(gl); } if (tweet_id > 0) statusUpdate.inReplyToStatusId(tweet_id); twitter.updateStatus(statusUpdate); response.setReady(true); } else { response.setReady(false); } return response; } catch (Exception e) { e.printStackTrace(); ErrorResponse response = new ErrorResponse(); response.setError(e, e.getMessage()); return response; } } }