/*
* 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.brooklyn.util.javalang;
import java.util.LinkedHashMap;
import java.util.Map;
/** a classloader which allows you to register classes and resources which this loader will return when needed,
* (essentially a registry rather than a classloader, but useful if you need to make new classes available in
* an old context) */
public class LoadedClassLoader extends ClassLoader {
Map<String, Class<?>> loadedClasses = new LinkedHashMap<String, Class<?>>();
protected synchronized Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
Class<?> result = loadedClasses.get(name);
if (result==null) throw new ClassNotFoundException(""+name+" not known here");
if (resolve) resolveClass(result);
return result;
}
public void addClass(Class<?> clazz) {
loadedClasses.put(clazz.getName(), clazz);
}
// TODO could also add resources
}