/* * Copyright 1999-2011 Alibaba Group. * * Licensed 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 com.alibaba.dubbo.rpc.filter; import com.alibaba.dubbo.common.Constants; import com.alibaba.dubbo.common.extension.Activate; import com.alibaba.dubbo.rpc.Filter; import com.alibaba.dubbo.rpc.Invocation; import com.alibaba.dubbo.rpc.Invoker; import com.alibaba.dubbo.rpc.Result; import com.alibaba.dubbo.rpc.RpcException; /** * ClassLoaderInvokerFilter * * @author william.liangf */ @Activate(group = Constants.PROVIDER, order = -30000) public class ClassLoaderFilter implements Filter { public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException { ClassLoader ocl = Thread.currentThread().getContextClassLoader(); Thread.currentThread().setContextClassLoader(invoker.getInterface().getClassLoader()); try { return invoker.invoke(invocation); } finally { Thread.currentThread().setContextClassLoader(ocl); } } }