/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.core.util;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class MixinProxy implements InvocationHandler {
private Object[] delegates;
public MixinProxy(Object[] delegates) {
this.delegates = delegates;
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable
{
for (int i = 0; i < delegates.length; i++) {
Object object = delegates[i];
Method m = null;
try {
m = object.getClass().getDeclaredMethod(method.getName(), method.getParameterTypes());
} catch (NoSuchMethodException e) {
}
if (m != null) {
try {
return m.invoke(object, args);
} catch (InvocationTargetException e) {
throw e.getTargetException();
}
}
}
return noSuchMethodFound(proxy, method, args);
}
protected Object noSuchMethodFound(Object proxy, Method method, Object[] args) throws Throwable {
throw new RuntimeException("Could not determine target delegate"); //$NON-NLS-1$
}
}