Android Open Source - audiopulse-androidclient Audio Pulse File Packager

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Back to project page audiopulse-androidclient.

License

The source code is released under:

GNU General Public License

Java Source Code

/* ===========================================================
 * SanaAudioPulse : a free platform for teleaudiology.
 *              /*  w  w w .  jav  a2s.co m*/
 * ===========================================================
 *
 * (C) Copyright 2012, by Sana AudioPulse
 *
 * Project Info:
 *    SanaAudioPulse: http://code.google.com/p/audiopulse/
 *    Sana: http://sana.mit.edu/
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * [Android is a trademark of Google Inc.]
 *
 * -----------------
 * AudioPulseCalibrationActivity.java
 * -----------------
 * (C) Copyright 2012, by SanaAudioPulse
 *
 * Original Author:  Ikaro Silva
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * Check: http://code.google.com/p/audiopulse/source/list
 */ 

package org.audiopulse.io;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Date;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
import android.os.Environment;
import android.util.Log;

public class AudioPulseFilePackager extends Thread
{
  private static final String TAG="PackageDataThreadRunnable";
  List<String> fileList;
  //TODO: handle external storage unavailability
  private static File root = Environment.getExternalStorageDirectory();
  private File outFile =null;

  public AudioPulseFilePackager(List<String> fileList){
    this.fileList=fileList;
  }

  public synchronized void run()
  {
    try {
      outFile=packageData();
      Log.v(TAG,"Packaged data saved at " +
          outFile.getAbsolutePath());
    } catch (IOException e) {
      Log.v(TAG,"Could not package data: " + e.getMessage());
      outFile=null;
    }
  }


  private synchronized File packageData() throws IOException {

    //Zip all the files
    String zipFileName="AP_Encounter_"+ new Date().toString()+".zip";
    zipFileName= root + "/" +zipFileName.replace(" ","-").replace(":", "-");
    OutputStream os= new FileOutputStream(zipFileName);
    ZipOutputStream zos = new ZipOutputStream(new BufferedOutputStream(os));
    //create byte buffer
    byte[] buffer = new byte[1024];
    int len, fileSepIndex;
    String tmpFileName;
    try {
      for (String fileName : fileList) {
        Log.v(TAG,"Adding file to zip: " + fileName);
        fileSepIndex=fileName.lastIndexOf("/");
        if(fileSepIndex > -1){
          tmpFileName=fileName.substring(fileSepIndex+1);
        }else{
          tmpFileName=fileName;
        }
        ZipEntry entry = new ZipEntry(tmpFileName);    
        zos.putNextEntry(entry);
        FileInputStream in = new FileInputStream(fileName);
        while ((len = in.read(buffer)) > 0) {
          zos.write(buffer, 0, len);
        }
        in.close();
        zos.closeEntry();
      }
    } finally {
      zos.close();
    }
    outFile=new File(zipFileName);

    //Remove the files added to the zip
    for (String fileName : fileList) {
      Log.v(TAG,"Removing redundant data file (already in zip): " + fileName);
      File tmpFile=new File(fileName);
      tmpFile.delete();  
    }

    return outFile ;

  }

  public static String unpackData(String inputFile) throws Exception {
    //Unzips data into the zip file directory - Should not be used by the Android Client...
    if(! inputFile.endsWith(".zip")){
      throw new Exception("Input File is NOT a zipped file: " + inputFile);
    }
    String outFile = inputFile.replace(".zip",""); 
    byte[] buffer = new byte[1024];
    try{
      File outFolder = new File(outFile);
      if(!outFolder.exists()){
        outFolder.mkdir();
      }
      ZipInputStream zis =new ZipInputStream(new FileInputStream(inputFile));
      ZipEntry entry = zis.getNextEntry();
      while(entry!=null){
        String fileName = entry.getName();
        File newFile = new File(outFile + File.separator + fileName);
        new File(newFile.getParent()).mkdirs();
        FileOutputStream fos = new FileOutputStream(newFile);             
        int length;
        while ((length = zis.read(buffer)) > 0) {
          fos.write(buffer, 0, length);
        }
        fos.close();   
        entry = zis.getNextEntry();
      }
      zis.closeEntry();
      zis.close();
    }catch(IOException ex){
      ex.printStackTrace(); 
    }  
    return outFile;  
  }

  public synchronized File getOutFile(){
    return outFile;
  }

}

Java Source Code List

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