/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual 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.jboss.shrinkwrap.resolver.impl.maven.archive.packaging;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.jar.Manifest;
import org.jboss.shrinkwrap.api.asset.StringAsset;
/**
* An Asset that makes work with Java Archive manifest more convenient
*
* @author <a href="kpiwko@redhat.com">Karel Piwko</a>
*
*/
class ManifestAsset extends StringAsset {
/**
* Creates an asset that would contain manifest
*
* @param manifest the manifest to be transformed into an asset
*/
ManifestAsset(Manifest manifest) {
super(manifestAsString(manifest));
}
/**
* Conversion method from Manifest to String.
*
* @param manifest Manifest to be transformed into String
* @return String representation of the Manifest
*/
private static String manifestAsString(Manifest manifest) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
manifest.write(baos);
return baos.toString("UTF-8");
} catch (IOException e) {
throw new IllegalStateException("Unable to write MANIFEST.MF to an archive Asset", e);
} finally {
try {
baos.close();
} catch (IOException e) {
}
}
}
@Override
public String toString() {
return ManifestAsset.class.getSimpleName() + " [content " + getSource() + "]";
}
}