UpdateLocationTask.java

package com.ved.musicmapapp.providers;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
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.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HTTP;
import org.json.JSONException;
import org.json.JSONObject;

import android.content.Context;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.util.Log;

import com.ved.musicmapapp.utils.Statics;

public class UpdateLocationTask extends AsyncTask<Void, Void, Integer> {
	String error;
	private Context context;
	private double lat, lon;
	private String userId;
	private UpdateLocationListener mUpdatedListener;

	public UpdateLocationTask(Context context, double lat, double lon,
			UpdateLocationListener listener) {
		Log.i("check","In UpdateLocationTask");

		this.context = context;
		this.lat = lat;
		this.lon = lon;
		mUpdatedListener = listener;
		SharedPreferences prefs = context.getSharedPreferences("MUSIC_MAP",
				Context.MODE_PRIVATE);
		userId = prefs.getString("FB_ID", null);
	}

	@Override
	protected Integer doInBackground(Void... params) {
		try {
			if (!Statics.isNetworkConnected(context) || userId == null)
				return 0;
			HttpParams httpParameters = new BasicHttpParams();
			int timeoutConnection = 20000;
			HttpConnectionParams.setConnectionTimeout(httpParameters,
					timeoutConnection);
			int timeoutSocket = 20000;
			HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
			HttpClient httpclient = new DefaultHttpClient(httpParameters);
			HttpPost httppost = new HttpPost(Statics.WS_PATH
					+ "updateLocation.php");
			List<NameValuePair> nvps = new ArrayList<NameValuePair>();
			nvps.add(new BasicNameValuePair("fbid", userId));
			nvps.add(new BasicNameValuePair("lat", lat + ""));
			nvps.add(new BasicNameValuePair("long", lon + ""));
			httppost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));

			HttpResponse response = httpclient.execute(httppost);

			HttpEntity entity = response.getEntity();
			if (entity != null) {
				// get the response content as a string
				InputStream instream = entity.getContent();
				BufferedReader reader = new BufferedReader(
						new InputStreamReader(instream, "UTF-8"));
				String line;
				StringBuilder sb = new StringBuilder("");
				while ((line = reader.readLine()) != null) {
					sb.append(line + "\n");
				}
				JSONObject jsonObject = new JSONObject(sb.toString());
				error = jsonObject.getString("message");
				return jsonObject.getInt("success");

			}
		} catch (UnsupportedEncodingException e1) {
			Log.e("Exception", "" + e1.getMessage());
			error = e1.getMessage();
			// e1.printStackTrace();
		} catch (ClientProtocolException e1) {
			Log.e("ClientProtocolException", "" + e1.getMessage());
			error = e1.getMessage();
			// e1.printStackTrace();
		} catch (IOException e1) {
			Log.e("IOException", "" + e1.getMessage());
			error = e1.getMessage();
			e1.printStackTrace();
		} catch (JSONException e) {
			e.printStackTrace();
			error = e.getMessage();
		} catch (Exception e) {
			e.printStackTrace();
			error = e.getMessage();
		}
		return 0;
	}

	@Override
	protected void onPostExecute(Integer result) {
		Log.i("check","End UPdate Location Task");
		if (result == 1 && null != userId) {
			if (mUpdatedListener != null) {
				mUpdatedListener.onUpdateComplete(true);
			}
		} else {
			if (mUpdatedListener != null) {
				mUpdatedListener.onUpdateComplete(false);
			}
		}
		super.onPostExecute(result);
	}

	@Override
	protected void onPreExecute() {
		// TODO Auto-generated method stub
		super.onPreExecute();
	}

	public interface UpdateLocationListener {
		public void onUpdateComplete(boolean isSuccess);
	}
}