/* | |
* 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.Set; | |
import com.alibaba.dubbo.common.Constants; | |
import com.alibaba.dubbo.common.extension.Activate; | |
import com.alibaba.dubbo.common.logger.Logger; | |
import com.alibaba.dubbo.common.logger.LoggerFactory; | |
import com.alibaba.dubbo.common.utils.ConcurrentHashSet; | |
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; | |
/** | |
* DeprecatedInvokerFilter | |
* | |
* @author william.liangf | |
*/ | |
@Activate(group = Constants.CONSUMER, value = Constants.DEPRECATED_KEY) | |
public class DeprecatedFilter implements Filter { | |
private static final Logger LOGGER = LoggerFactory.getLogger(DeprecatedFilter.class); | |
private static final Set<String> logged = new ConcurrentHashSet<String>(); | |
public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException { | |
String key = invoker.getInterface().getName() + "." + invocation.getMethodName(); | |
if (! logged.contains(key)) { | |
logged.add(key); | |
if (invoker.getUrl().getMethodParameter(invocation.getMethodName(), Constants.DEPRECATED_KEY, false)) { | |
LOGGER.error("The service method " + invoker.getInterface().getName() + "." + getMethodSignature(invocation) + " is DEPRECATED! Declare from " + invoker.getUrl()); | |
} | |
} | |
return invoker.invoke(invocation); | |
} | |
private String getMethodSignature(Invocation invocation) { | |
StringBuilder buf = new StringBuilder(invocation.getMethodName()); | |
buf.append("("); | |
Class<?>[] types = invocation.getParameterTypes(); | |
if (types != null && types.length > 0) { | |
boolean first = true; | |
for (Class<?> type : types) { | |
if (first) { | |
first = false; | |
} else { | |
buf.append(", "); | |
} | |
buf.append(type.getSimpleName()); | |
} | |
} | |
buf.append(")"); | |
return buf.toString(); | |
} | |
} |