/*
 * 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.commons.pool2.proxy;

import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.Factory;

import org.apache.commons.pool2.UsageTracking;

Provides proxy objects using CGLib.
Type parameters:
  • <T> – type of the pooled object to be proxied
Since:2.0
/** * Provides proxy objects using CGLib. * * @param <T> type of the pooled object to be proxied * * @since 2.0 */
public class CglibProxySource<T> implements ProxySource<T> { private final Class<? extends T> superclass;
Create a new proxy source for the given class.
Params:
  • superclass – The class to proxy
/** * Create a new proxy source for the given class. * * @param superclass The class to proxy */
public CglibProxySource(final Class<? extends T> superclass) { this.superclass = superclass; } @Override public T createProxy(final T pooledObject, final UsageTracking<T> usageTracking) { final Enhancer enhancer = new Enhancer(); enhancer.setSuperclass(superclass); final CglibProxyHandler<T> proxyInterceptor = new CglibProxyHandler<>(pooledObject, usageTracking); enhancer.setCallback(proxyInterceptor); @SuppressWarnings("unchecked") final T proxy = (T) enhancer.create(); return proxy; } @Override public T resolveProxy(final T proxy) { @SuppressWarnings("unchecked") final CglibProxyHandler<T> cglibProxyHandler = (CglibProxyHandler<T>) ((Factory) proxy).getCallback(0); final T pooledObject = cglibProxyHandler.disableProxy(); return pooledObject; }
Since:2.4.3
/** * @since 2.4.3 */
@Override public String toString() { final StringBuilder builder = new StringBuilder(); builder.append("CglibProxySource [superclass="); builder.append(superclass); builder.append("]"); return builder.toString(); } }