| /* |
| * 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. |
| * |
| * @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. |
| * |
| * @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 |
| */ |
| @Override |
| public String toString() { |
| final StringBuilder builder = new StringBuilder(); |
| builder.append("CglibProxySource [superclass="); |
| builder.append(superclass); |
| builder.append("]"); |
| return builder.toString(); |
| } |
| } |