it.sasabz.android.sasabus.classes.hafas.XMLAsyncRequest.java Source code

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Here is the source code for it.sasabz.android.sasabus.classes.hafas.XMLAsyncRequest.java

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/**
 *
 * XMLAsyncRequest.java
 * 
 * 
 * Copyright (C) 2012 Markus Windegger
 *
 * This file is part of SasaBus.
    
 * SasaBus is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * SasaBus is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with SasaBus.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package it.sasabz.android.sasabus.classes.hafas;

import it.sasabz.android.sasabus.CheckDatabaseActivity;

import it.sasabz.android.sasabus.SASAbus;

import it.sasabz.android.sasabus.R;
import it.sasabz.android.sasabus.classes.Config;
import it.sasabz.android.sasabus.classes.Decompress;
import it.sasabz.android.sasabus.classes.MD5Utils;
import it.sasabz.android.sasabus.classes.network.SasabusFTP;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import java.io.OutputStream;
import java.net.MalformedURLException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.res.Resources;

import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Environment;
import android.os.Looper;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.util.AndroidRuntimeException;
import android.util.Log;
import android.widget.SlidingDrawer;

/**
 * FileDownloader is my own delegate class that performs the
 * actual downloading and is initialized with the source URL.
 * 
 * @author Paolo Dongilli and Markus Windegger
 *
 */
public class XMLAsyncRequest extends AsyncTask<Void, String, String> {

    private static final String TAG = "XML-LOGGER";

    private ProgressDialog progressDialog;

    private String request = "";

    private Activity activity = null;

    /**
     * This constructor takes an activity, a dbZipFile to store the 
     * downloaded Zip file, a dbFile to store the unzipped database and at least
     * a md5File to save the downloaded md5File
     * @param activity is the actual activity
     * @param dbZIPFile is the file to save the downloaded zip file
     * @param dbFile is the file to save the unzipped db file
     * @param md5File is the file to save the downloaded md5 file
     */
    public XMLAsyncRequest(Activity activity, String request) {
        super();
        this.activity = activity;
        this.request = request;
    }

    /**
     * @return the progressDialog
     */
    public ProgressDialog getProgressDialog() {
        return progressDialog;
    }

    /**
     * @param progressDialog the progressDialog to set
     */
    public void setProgressDialog(ProgressDialog progressDialog) {
        this.progressDialog = progressDialog;
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
    }

    @Override
    protected String doInBackground(Void... params) {
        String ret = "";
        if (!haveNetworkConnection()) {
            return ret;
        }
        try {
            HttpClient http = new DefaultHttpClient();
            HttpPost post = new HttpPost(SASAbus.getContext().getString(R.string.xml_server));
            StringEntity se = new StringEntity(request, HTTP.UTF_8);
            se.setContentType("text/xml");
            post.setEntity(se);

            HttpResponse response = http.execute(post);
            if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                ret = EntityUtils.toString(response.getEntity());
            }
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return ret;
    }

    /**
     * this method checks if a networkconnection is active or not
     * @return boolean if the network is reachable or not
     */
    private boolean haveNetworkConnection() {
        boolean haveConnectedWifi = false;
        boolean haveConnectedMobile = false;

        ConnectivityManager cm = (ConnectivityManager) (activity.getSystemService(Context.CONNECTIVITY_SERVICE));
        NetworkInfo[] netInfo = cm.getAllNetworkInfo();
        for (NetworkInfo ni : netInfo) {
            //testing WIFI connection
            if (ni.getTypeName().equalsIgnoreCase("WIFI"))
                if (ni.isConnected())
                    haveConnectedWifi = true;
            //testing GPRS/EDGE/UMTS/HDSPA/HUSPA/LTE connection
            if (ni.getTypeName().equalsIgnoreCase("MOBILE"))
                if (ni.isConnected())
                    haveConnectedMobile = true;
        }
        return haveConnectedWifi || haveConnectedMobile;
    }

    @Override
    public void onProgressUpdate(String... args) {
        this.progressDialog.setProgress(Integer.parseInt(args[0]));
        progressDialog.show();
    }

    @Override
    protected void onPostExecute(String result) {
        super.onPostExecute(result);

    }

}