Android Open Source - android_retrieval_system Uploader

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * This file is part of Android retrieval system project.
 * //from w  w w  .  j a  v a2s . c o m
 * Android retrieval system 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. 
 * 
 * Android retrieval system 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 Android retrieval system. If not, see <http://www.gnu.org/licenses/>.
 */

package net.deerhunter.ars.protocol;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import net.deerhunter.ars.R;
import net.deerhunter.ars.application.ArsApplication;
import net.deerhunter.ars.protocol.packets.MainPacket;
import android.content.Context;
import android.content.SharedPreferences;

/**
 * This class is used to send packets to the server.
 * 
 * @author DeerHunter (vityokkv73@gmail.com)
 */
public class Uploader {
  private Uploader() {}

  /**
   * Sends packets to the server.
   * 
   * @param packet Packet that must be sent
   * @param context Context of the application component
   * @return Flag that indicated success of packet delivering
   * @throws IOException if some problems with network occurred
   */
  public static boolean sendPacket(MainPacket packet, Context context) throws IOException {
    BufferedInputStream fis = new BufferedInputStream(new ByteArrayInputStream(packet.getPacket()));

    SharedPreferences prefs = ArsApplication.getInstance().getAppPrefs();

    String serverAddress = prefs.getString(context.getString(R.string.serverAddress),
        context.getString(R.string.defaultServerAddress));

    HttpURLConnection httpUrlConnection = (HttpURLConnection) new URL(serverAddress).openConnection();
    httpUrlConnection.setDoOutput(true);
    httpUrlConnection.setDoInput(true);
    httpUrlConnection.setReadTimeout(10000);
    httpUrlConnection.setConnectTimeout(10000);
    httpUrlConnection.setRequestMethod("POST");
    OutputStream os = httpUrlConnection.getOutputStream();
    BufferedOutputStream bos = new BufferedOutputStream(os);
    int totalByte = packet.getPacketLength();
    int byteTransferred = 0;
    byte[] fileBuffer = new byte[totalByte];
    do {
      int readDataLength = fis.read(fileBuffer, byteTransferred, totalByte - byteTransferred);
      bos.write(fileBuffer, byteTransferred, readDataLength);

      byteTransferred += readDataLength;
    } while (totalByte != byteTransferred);

    bos.flush();
    bos.close();
    BufferedReader in = new BufferedReader(new InputStreamReader(httpUrlConnection.getInputStream()));

    boolean result = false;
    String s = in.readLine();
    if (s != null && s.equals("Done"))
      result = true;
    
    in.close();
    fis.close();

    return result;
  }
}

Java Source Code List

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