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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.java.impl;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URI;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import org.apache.tuscany.sca.contribution.Artifact;
import org.apache.tuscany.sca.contribution.Contribution;
public class ContributionHelper {
public static List<URL> getNestedJarUrls(final Contribution contribution) throws IOException {
List<URL> urls = new ArrayList<URL>();
final boolean isZipContribution = contribution.getLocation().endsWith(".zip");
final URI uri = URI.create(contribution.getLocation());
boolean isFolderContribution = AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
return !isZipContribution && uri.getScheme().equals("file") && new File(uri.getSchemeSpecificPart()).isDirectory();
}
});
if (isZipContribution || isFolderContribution) {
for (Artifact a : contribution.getArtifacts()) {
if (a.getLocation().endsWith(".jar")) {
if (isZipContribution) {
urls.add(createTempJar(a, contribution));
} else {
urls.add(new URL(a.getLocation()));
}
}
}
}
return urls;
}
/**
* URLClassLoader doesn't seem to work with URLs to jars within an archive so as a work around
* copy the jar to a temp file and use the url to that.
*/
private static URL createTempJar(Artifact artifact, Contribution contribution) throws IOException {
FileOutputStream fileOutputStream = null;
ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(new File(URI.create(contribution.getLocation()))));
try {
ZipEntry zipEntry = zipInputStream.getNextEntry();
while (zipEntry != null) {
if (artifact.getLocation().endsWith(zipEntry.getName())) {
String tempName = ("tmp." + artifact.getURI().substring(0, artifact.getURI().length() - 3)).replace('/', '.');
File tempFile = File.createTempFile(tempName, ".jar");
tempFile.deleteOnExit();
fileOutputStream = new FileOutputStream(tempFile);
byte[] buf = new byte[2048];
int n;
while ((n = zipInputStream.read(buf, 0, buf.length)) > -1) {
fileOutputStream.write(buf, 0, n);
}
fileOutputStream.close();
zipInputStream.closeEntry();
return tempFile.toURI().toURL();
}
zipEntry = zipInputStream.getNextEntry();
}
} finally {
zipInputStream.close();
if (fileOutputStream != null) {
fileOutputStream.close();
}
}
throw new IllegalStateException();
}
}
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