Application: gvSIG desktop

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 * 

 * 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 2

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 

 * MA  02110-1301, USA.

 * 

 */

 * AUTHORS (In addition to CIT):

 * 2010 {Prodevelop}   {Task}

 */

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import java.util.Properties;

import org.gvsig.installer.lib.api.InstallerInfo;

import org.gvsig.installer.lib.impl.DefaultInstallerInfo;

import org.gvsig.installer.lib.impl.creation.DefaultInstallerCreationService;

import org.gvsig.installer.lib.impl.info.InstallerInfoFileException;

import org.gvsig.installer.lib.impl.info.InstallerInfoFileReader;

	private List<InstallerInfo> installerInfos = null;

	private boolean decompress = false;

	private File outputDirectory = null;

	public void decompressPlugins(InputStream is, File outputDirectory) throws InstallerExecutionServiceException {

		decompress = true;

		this.outputDirectory = outputDirectory;

		decompressFolderOfPlugins(is);

	}	

	public List<InstallerInfo> readInstallInfo(InputStream is) throws InstallerExecutionServiceException{

		decompress = false;

		installerInfos = new ArrayList<InstallerInfo>();

		decompressFolderOfPlugins(is);

		return installerInfos;

	}

	private void decompressFolderOfPlugins(InputStream is) throws InstallerExecutionServiceException {

				decompressPlugin(new ZipInputStream(zipInputStream));

	private void decompressPlugin(ZipInputStream zipInputStream) throws ZipException, IOException, InstallerInfoFileException{

			logger.debug("Extracting: " + entry.getName());	

			if (decompress){

				FileOutputStream fos = new FileOutputStream(outputDirectory.getAbsolutePath() + File.separator + entry.getName());

				while ((count = zipInputStream.read(data, 0, BUFFER)) != -1) {

					fos.write(data, 0, count);

				}

				fos.flush();		

				fos.close();	

			}else{

				if (entry.getName().endsWith(File.separator + DefaultInstallerCreationService.INSTALLINFO_FILE_NAME)){

					installerInfos.add(readInstallInfo(zipInputStream));

				}

		}		

	}	

	private InstallerInfo readInstallInfo(ZipInputStream zipInputStream) throws IOException, InstallerInfoFileException{

		int count;

		byte data[] = new byte[BUFFER];

		ByteArrayOutputStream out = new ByteArrayOutputStream();

		while ((count = zipInputStream.read(data, 0, BUFFER)) != -1) {

			out.write(data, 0, count);

		out.flush();

		InstallerInfo installerInfo = new DefaultInstallerInfo();

		InstallerInfoFileReader installerInfoFileReader = new InstallerInfoFileReader();

		installerInfoFileReader.read(installerInfo, new ByteArrayInputStream(out.toByteArray()));

		return installerInfo;