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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.
*/
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;
public final class JarResource {
public List<String> getJarContents(URL jarLocation) throws IOException {
return getJarContents(jarLocation.openStream());
}
public List<String> getJarContents(InputStream is) throws IOException {
return load(is);
}
public List<String> getJarContents(String jarLocation) throws IOException {
return getJarContents(new File(jarLocation));
}
public List<String> getJarContents(File jarFile) throws IOException {
return load(jarFile);
}
private List<String> load(File jarFile) throws IOException {
List<String> jarContents = new ArrayList<String>();
try {
ZipFile zf = new ZipFile(jarFile);
for (Enumeration e = zf.entries(); e.hasMoreElements();) {
ZipEntry ze = (ZipEntry) e.nextElement();
if (ze.isDirectory()) {
continue;
}
jarContents.add(ze.getName());
}
} catch (NullPointerException e) {
System.out.println("done.");
} catch (ZipException ze) {
ze.printStackTrace();
}
return jarContents;
}
private List<String> load(InputStream is) throws IOException {
List<String> jarContents = new ArrayList<String>();
try {
ZipInputStream zis = new ZipInputStream(is);
ZipEntry ze = zis.getNextEntry();
while (ze != null) {
if (ze.isDirectory()) {
continue;
}
jarContents.add(ze.getName());
ze = zis.getNextEntry();
}
} catch (NullPointerException e) {
System.out.println("done.");
}
return jarContents;
}
}
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