/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.gatein.management.core.api.binding.zip;
import org.gatein.common.io.IOTools;
import org.gatein.management.api.binding.BindingException;
import org.gatein.management.api.binding.Marshaller;
import org.gatein.management.api.operation.model.ExportResourceModel;
import org.gatein.management.api.operation.model.ExportTask;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
/**
* @author <a href="mailto:nscavell@redhat.com">Nick Scavelli</a>
* @version $Revision$
*/
public class ExportResourceModelMarshaller implements Marshaller<ExportResourceModel>
{
@Override
public void marshal(ExportResourceModel model, OutputStream outputStream) throws BindingException
{
File file;
ZipOutputStream zos = null;
try
{
file = File.createTempFile("gatein-export", ".zip");
zos = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(file)));
}
catch (IOException e)
{
throw new BindingException("Could not create temp file for export.", e);
}
try
{
if (model.getTasks().isEmpty())
{
zos.putNextEntry(new ZipEntry(""));
}
else
{
for (ExportTask task : model.getTasks())
{
String entry = task.getEntry();
zos.putNextEntry(new ZipEntry(entry));
// Call export task responsible for writing the data.
task.export(zos);
zos.closeEntry();
}
}
zos.flush();
zos.finish();
}
catch (Throwable t)
{
throw new BindingException("Exception writing data to zip.", t);
}
finally
{
IOTools.safeClose(zos);
}
try
{
InputStream inputStream = new BufferedInputStream(new FileInputStream(file));
IOTools.copy(inputStream, outputStream);
}
catch (FileNotFoundException e)
{
throw new BindingException("Could not read from temporary zip file " + file, e);
}
catch (IOException e)
{
throw new BindingException("IOException writing data to final output stream.", e);
}
}
@Override
public ExportResourceModel unmarshal(InputStream inputStream) throws BindingException
{
throw new UnsupportedOperationException();
}
}