/*
* Copyright 2013 Red Hat Inc. and/or its affiliates and other contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.switchyard.serial.compress;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
import org.switchyard.common.io.CountingOutputStream;
import org.switchyard.serial.CompressionType;
import org.switchyard.serial.Serializer;
import org.switchyard.serial.WrapperSerializer;
/**
* A wrapper serializer that performs ZIP compression/decompression.
*
* @author David Ward <<a href="mailto:dward@jboss.org">dward@jboss.org</a>> © 2012 Red Hat Inc.
*/
public final class ZIPSerializer extends WrapperSerializer {
/**
* Constructor with a serializer to wrap.
* @param serializer the serializer to wrap
*/
public ZIPSerializer(Serializer serializer) {
super(serializer, CompressionType.ZIP);
}
/**
* {@inheritDoc}
*/
@Override
public <T> int serialize(T obj, Class<T> type, OutputStream out) throws IOException {
out = new CountingOutputStream(out);
ZipOutputStream zip = new ZipOutputStream(out);
try {
zip.putNextEntry(new ZipEntry("z"));
getWrapped().serialize(obj, type, zip);
zip.closeEntry();
zip.finish();
zip.flush();
} finally {
if (isCloseEnabled()) {
zip.close();
}
}
return ((CountingOutputStream)out).getCount();
}
/**
* {@inheritDoc}
*/
@Override
public <T> T deserialize(InputStream in, Class<T> type) throws IOException {
ZipInputStream zip = new ZipInputStream(in);
try {
zip.getNextEntry();
return getWrapped().deserialize(zip, type);
} finally {
if (isCloseEnabled()) {
zip.close();
}
}
}
}