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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tuscany.sca.contribution.processor.impl;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.jar.JarEntry;
import java.util.jar.JarInputStream;
import org.apache.tuscany.sca.contribution.PackageType;
import org.apache.tuscany.sca.contribution.processor.PackageProcessor;
import org.apache.tuscany.sca.contribution.service.ContributionException;
/**
* Jar Contribution package processor.
*
* @version $Rev$ $Date$
*/
public class JarContributionProcessor implements PackageProcessor {
public JarContributionProcessor() {
}
public String getPackageType() {
return PackageType.JAR;
}
public URL getArtifactURL(URL sourceURL, URI artifact) throws MalformedURLException {
if (sourceURL.toString().startsWith("jar:")) {
return new URL(sourceURL, artifact.toString());
} else {
return new URL("jar:" + sourceURL.toExternalForm() + "!/" + artifact);
}
}
public List<URI> getArtifacts(URL packageSourceURL, InputStream inputStream) throws ContributionException,
IOException {
if (packageSourceURL == null) {
throw new IllegalArgumentException("Invalid null package source URL.");
}
if (inputStream == null) {
throw new IllegalArgumentException("Invalid null source inputstream.");
}
// Assume the root is a jar file
JarInputStream jar = new JarInputStream(inputStream);
try {
Set<String> names = new HashSet<String>();
while (true) {
JarEntry entry = jar.getNextJarEntry();
if (entry == null) {
// EOF
break;
}
// FIXME: Maybe we should externalize the filter as a property
String name = entry.getName();
if (!name.startsWith(".")) {
// Trim trailing /
if (name.endsWith("/")) {
name = name.substring(0, name.length() - 1);
}
// Add the entry name
if (!names.contains(name)) {
names.add(name);
// Add parent folder names to the list too
for (;;) {
int s = name.lastIndexOf('/');
if (s == -1) {
name = "";
} else {
name = name.substring(0, s);
}
if (!names.contains(name)) {
names.add(name);
} else {
break;
}
}
}
}
}
// Return list of URIs
List<URI> artifacts = new ArrayList<URI>();
for (String name: names) {
artifacts.add(URI.create(name));
}
return artifacts;
} finally {
jar.close();
}
}
}
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