org.apache.catalina.webresources.ClasspathURLStreamHandler 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.catalina.webresources;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import org.apache.tomcat.util.res.StringManager;
public class ClasspathURLStreamHandler extends URLStreamHandler {
private static final StringManager sm =
StringManager.getManager(ClasspathURLStreamHandler.class);
@Override
protected URLConnection openConnection(URL u) throws IOException {
String path = u.getPath();
// Thread context class loader first
URL classpathUrl = Thread.currentThread().getContextClassLoader().getResource(path);
if (classpathUrl == null) {
// This class's class loader if no joy with the tccl
classpathUrl = ClasspathURLStreamHandler.class.getResource(path);
}
if (classpathUrl == null) {
throw new FileNotFoundException(sm.getString("classpathUrlStreamHandler.notFound", u));
}
return classpathUrl.openConnection();
}
}