Downloads a file given URL to specified destination : Url « Network « Android

1. Android
2. Network
3. Url

Downloads a file given URL to specified destination

 
/*
 * The MIT License
 * 
 * Copyright (c) 2010 Petar Petrov
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
//package net.vexelon.bgrates;

import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigDecimal;
import java.math.MathContext;
import java.math.RoundingMode;
import java.net.URL;
import java.net.URLConnection;

import org.apache.http.util.ByteArrayBuffer;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.KeyEvent;


public class Utils {
  
  /**
   * Downloads a file given URL to specified destination
   * @param url
   * @param destFile
   * @return
   */
  //public static boolean downloadFile(Context context, String url, String destFile) {
  public static boolean downloadFile(Context context, String url, File destFile) {
    //Log.v(TAG, "@downloadFile()");
    //Log.d(TAG, "Downloading " + url);
    
    boolean ret = false;
    
    BufferedInputStream bis = null;
    FileOutputStream fos = null;
    InputStream is = null;
    
    try {
      URL myUrl = new URL(url);
      URLConnection connection = myUrl.openConnection();
      
      is = connection.getInputStream();
      bis = new BufferedInputStream(is);
      ByteArrayBuffer baf = new ByteArrayBuffer(1024);
      
      int n = 0;
      while( (n = bis.read()) != -1 )
        baf.append((byte) n);
      
      // save to internal storage
      //Log.v(TAG, "Saving downloaded file ...");
      fos = new FileOutputStream(destFile); 
        //context.openFileOutput(destFile, context.MODE_PRIVATE);
      fos.write(baf.toByteArray());
      fos.close();
      //Log.v(TAG, "File saved successfully.");
      
      ret = true;
    }
    catch(Exception e) {
      //Log.e(TAG, "Error while downloading and saving file !", e);
    }
    finally {
      try {
        if ( fos != null ) fos.close();
      } catch( IOException e ) {}
      try {
        if ( bis != null ) bis.close();
      } catch( IOException e ) {}
      try {
        if ( is != null ) is.close();
      } catch( IOException e ) {}
    }
    
    return ret;
  }

}

   
  

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