com.sun.enterprise.util.net.JarURIPattern Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.enterprise.util.net;
import com.sun.enterprise.util.CULoggerInfo;
import java.io.File;
import java.net.URI;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.regex.Pattern;
public class JarURIPattern {
private static final Logger logger = CULoggerInfo.getLogger();
/**
* This method is used to extract URI of jar entries that match
* a given pattern.
* @param uri
* @param pattern
*/
public static List getJarEntries(URI uri, Pattern pattern) {
List results = new ArrayList();
File file = null;
try {
file = new File(uri);
} catch(Exception ex) {
// ignore
}
if (file == null || file.isDirectory()) {
return results;
}
String fileName = file.getName();
// only look at jar file
if (fileName.endsWith(".jar")) {
JarFile jarFile = null;
try {
jarFile = new JarFile(new File(uri));
Enumeration entries = jarFile.entries();
while (entries.hasMoreElements()) {
JarEntry entry = (JarEntry)entries.nextElement();
String entryName = entry.getName();
if (pattern.matcher(entryName).matches()) {
results.add(entryName);
}
}
} catch(Exception ex) {
if (logger.isLoggable(Level.WARNING)) {
logger.log(Level.WARNING,
CULoggerInfo.getString(CULoggerInfo.exceptionJarOpen, fileName),
ex);
}
throw new RuntimeException(ex);
} finally {
if (jarFile != null) {
try {
jarFile.close();
} catch (Throwable t) {
// Ignore
}
}
}
}
return results;
}
}