org.apache.jasper.compiler.JarURLResource Maven / Gradle / Ivy
/*
* 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.jasper.compiler;
import java.io.IOException;
import java.net.JarURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.jar.JarFile;
public class JarURLResource implements JarResource {
private String jarUrl;
public JarURLResource(URL jarURL) {
this(jarURL.toExternalForm());
}
public JarURLResource(String jarUrl) {
this.jarUrl = jarUrl;
}
public JarFile getJarFile() throws IOException {
URL jarFileUrl = new URL("jar:" + jarUrl + "!/");
JarURLConnection conn = (JarURLConnection) jarFileUrl.openConnection();
conn.setUseCaches(false);
conn.connect();
return conn.getJarFile();
}
public String getUrl() {
return jarUrl;
}
public URL getEntry(String name) {
try {
return new URL("jar:" + jarUrl + "!/" + name);
} catch (MalformedURLException e) {
throw new RuntimeException("", e);
}
}
}