Compress.java

/* 
 * Copyright (C) 2014 TU Darmstadt, Hessen, Germany.
 * Department of Computer Science Databases and Distributed Systems
 *
 * This program 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.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */ 
 
 package de.tudarmstadt.dvs.myhealthassistant.myhealthhub.commontools;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import android.util.Log;


public class Compress {
  private static final int BUFFER = 2048;

  private File file;
  private File zipFile;

  
  public Compress(File file, File zipFile) {
	  this.file = file;
	  this.zipFile = zipFile;
  }

  
	public void zip() {
		try {
			BufferedInputStream origin = null;
			Log.d("Compress", "-- " + zipFile.getAbsolutePath());
			FileOutputStream dest = new FileOutputStream(zipFile);

			ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(
					dest));

			byte data[] = new byte[BUFFER];
			Log.v("Compress", "Adding: " + file.getName()+" isDirectory: "+file.isDirectory()+
					" canRead: "+file.canRead());
			FileInputStream fi = new FileInputStream(file);
			origin = new BufferedInputStream(fi, BUFFER);
			ZipEntry entry = new ZipEntry(file.getName());
			out.putNextEntry(entry);
			int count;
			while ((count = origin.read(data, 0, BUFFER)) != -1) {
				out.write(data, 0, count);
			}
			origin.close();

			out.close();
		} catch (Exception e) {
			e.printStackTrace();
		}

	}

}