DeleteThread.java

//   Copyright 2011 UPM-GSI: Group of Intelligent Systems -
//   - Universidad Politécnica de Madrid (UPM)
//
//   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 es.upm.dit.gsi.noticiastvi.gtv.account;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;

import android.os.Handler;
import android.util.Log;
import es.upm.dit.gsi.noticiastvi.gtv.util.Constant;

/**
 * Thread to create accounts on the server.
 * 
 * @author Antonio Prada <toniprada@gmail.com>
 * 
 */
public class DeleteThread extends Thread {
	
	private static final String ACTION = "removeUser";
	public static final int RESULT_OK = 50;
	public static final int RESULT_ERROR = 51;

	private Handler handler;
	private int id;

	public DeleteThread(Handler handler, int id) {
		this.handler = handler;
		this.id = id;
	}

	@Override
	public void run() {
		HttpParams httpParameters = new BasicHttpParams();
		int timeoutConnection = 10000;
		HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
		int timeoutSocket = 10000;
		HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
		DefaultHttpClient client = new DefaultHttpClient(httpParameters);
		HttpGet get = new HttpGet(Constant.SERVER_URL + "?action=" + ACTION + "&identifier=" + id);
		try {
			HttpResponse getResponse = client.execute(get);
			final int statusCode = getResponse.getStatusLine().getStatusCode();
			if (statusCode != HttpStatus.SC_OK) {
				Log.w(getClass().getSimpleName(), "Error " + statusCode);
				handler.sendEmptyMessage(RESULT_ERROR);
				return;
			}
			HttpEntity getResponseEntity = getResponse.getEntity();
			String res =  inputStreamToString( getResponseEntity.getContent()  );
			if (res != null && res.equals("ok")) {
				handler.sendEmptyMessage(RESULT_OK);
			} else {
				handler.sendEmptyMessage(RESULT_ERROR);
			}
		} catch (Exception e) {
			handler.sendEmptyMessage(RESULT_ERROR);
			Log.e("ERROR", e.getMessage());
		}
	}
	
	private String inputStreamToString(InputStream is) throws IOException {
	    String s = "";
	    String line = "";
	    
	    // Wrap a BufferedReader around the InputStream
	    BufferedReader rd = new BufferedReader(new InputStreamReader(is));
	    
	    // Read response until the end
	    while ((line = rd.readLine()) != null) { s += line; }
	    
	    // Return full string
	    return s;
	}

}