org.apache.sshd.common.util.ProxyUtils 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.sshd.common.util;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Proxy;
/**
* @author Apache MINA SSHD Project
*/
public final class ProxyUtils {
private ProxyUtils() {
throw new UnsupportedOperationException("No instance");
}
public static T newProxyInstance(Class type, InvocationHandler handler) {
return newProxyInstance(type.getClassLoader(), type, handler);
}
public static T newProxyInstance(ClassLoader cl, Class type, InvocationHandler handler) {
Class[] interfaces = { type };
Object wrapper = Proxy.newProxyInstance(cl, interfaces, handler);
return type.cast(wrapper);
}
public static Throwable unwrapInvocationThrowable(Throwable t) {
if (t instanceof InvocationTargetException) {
return unwrapInvocationThrowable(((InvocationTargetException) t).getTargetException());
} else {
return t;
}
}
}