/* | |
* 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.listener; | |
import java.util.List; | |
import com.alibaba.dubbo.common.URL; | |
import com.alibaba.dubbo.common.logger.Logger; | |
import com.alibaba.dubbo.common.logger.LoggerFactory; | |
import com.alibaba.dubbo.rpc.Invoker; | |
import com.alibaba.dubbo.rpc.InvokerListener; | |
import com.alibaba.dubbo.rpc.RpcException; | |
import com.alibaba.dubbo.rpc.Invocation; | |
import com.alibaba.dubbo.rpc.Result; | |
/** | |
* ListenerInvoker | |
* | |
* @author william.liangf | |
*/ | |
public class ListenerInvokerWrapper<T> implements Invoker<T> { | |
private static final Logger logger = LoggerFactory.getLogger(ListenerInvokerWrapper.class); | |
private final Invoker<T> invoker; | |
private final List<InvokerListener> listeners; | |
public ListenerInvokerWrapper(Invoker<T> invoker, List<InvokerListener> listeners){ | |
if (invoker == null) { | |
throw new IllegalArgumentException("invoker == null"); | |
} | |
this.invoker = invoker; | |
this.listeners = listeners; | |
if (listeners != null && listeners.size() > 0) { | |
for (InvokerListener listener : listeners) { | |
if (listener != null) { | |
try { | |
listener.referred(invoker); | |
} catch (Throwable t) { | |
logger.error(t.getMessage(), t); | |
} | |
} | |
} | |
} | |
} | |
public Class<T> getInterface() { | |
return invoker.getInterface(); | |
} | |
public URL getUrl() { | |
return invoker.getUrl(); | |
} | |
public boolean isAvailable() { | |
return invoker.isAvailable(); | |
} | |
public Result invoke(Invocation invocation) throws RpcException { | |
return invoker.invoke(invocation); | |
} | |
@Override | |
public String toString() { | |
return getInterface() + " -> " + getUrl()==null?" ":getUrl().toString(); | |
} | |
public void destroy() { | |
try { | |
invoker.destroy(); | |
} finally { | |
if (listeners != null && listeners.size() > 0) { | |
for (InvokerListener listener : listeners) { | |
if (listener != null) { | |
try { | |
listener.destroyed(invoker); | |
} catch (Throwable t) { | |
logger.error(t.getMessage(), t); | |
} | |
} | |
} | |
} | |
} | |
} | |
} |