/* | |
* 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 java.util.HashMap; | |
import java.util.Map; | |
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.RpcContext; | |
import com.alibaba.dubbo.rpc.RpcException; | |
import com.alibaba.dubbo.rpc.RpcInvocation; | |
/** | |
* ContextInvokerFilter | |
* | |
* @author william.liangf | |
*/ | |
@Activate(group = Constants.PROVIDER, order = -10000) | |
public class ContextFilter implements Filter { | |
public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException { | |
Map<String, String> attachments = invocation.getAttachments(); | |
if (attachments != null) { | |
attachments = new HashMap<String, String>(attachments); | |
attachments.remove(Constants.PATH_KEY); | |
attachments.remove(Constants.GROUP_KEY); | |
attachments.remove(Constants.VERSION_KEY); | |
attachments.remove(Constants.DUBBO_VERSION_KEY); | |
attachments.remove(Constants.TOKEN_KEY); | |
attachments.remove(Constants.TIMEOUT_KEY); | |
} | |
RpcContext.getContext() | |
.setInvoker(invoker) | |
.setInvocation(invocation) | |
.setAttachments(attachments) | |
.setLocalAddress(invoker.getUrl().getHost(), | |
invoker.getUrl().getPort()); | |
if (invocation instanceof RpcInvocation) { | |
((RpcInvocation)invocation).setInvoker(invoker); | |
} | |
try { | |
return invoker.invoke(invocation); | |
} finally { | |
RpcContext.removeContext(); | |
} | |
} | |
} |