/* | |
* 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 com.alibaba.dubbo.remoting; | |
import com.alibaba.dubbo.common.bytecode.NoSuchMethodException; | |
import com.alibaba.dubbo.common.bytecode.Wrapper; | |
import com.alibaba.dubbo.remoting.exchange.ExchangeChannel; | |
import com.alibaba.dubbo.remoting.exchange.support.Replier; | |
import java.lang.reflect.InvocationTargetException; | |
/** | |
* RpcMessageHandler. | |
*/ | |
public class RpcMessageHandler implements Replier<RpcMessage> { | |
private final static ServiceProvider DEFAULT_PROVIDER = new ServiceProvider() { | |
public Object getImplementation(String service) { | |
String impl = service + "Impl"; | |
try { | |
Class<?> cl = Thread.currentThread().getContextClassLoader().loadClass(impl); | |
return cl.newInstance(); | |
} catch (Exception e) { | |
e.printStackTrace(); | |
} | |
return null; | |
} | |
}; | |
private ServiceProvider mProvider; | |
public RpcMessageHandler() { | |
this(DEFAULT_PROVIDER); | |
} | |
public RpcMessageHandler(ServiceProvider prov) { | |
mProvider = prov; | |
} | |
public Class<RpcMessage> interest() { | |
return RpcMessage.class; | |
} | |
public Object reply(ExchangeChannel channel, RpcMessage msg) throws RemotingException { | |
String desc = msg.getMethodDesc(); | |
Object[] args = msg.getArguments(); | |
Object impl = mProvider.getImplementation(msg.getClassName()); | |
Wrapper wrap = Wrapper.getWrapper(impl.getClass()); | |
try { | |
return new MockResult(wrap.invokeMethod(impl, desc, msg.getParameterTypes(), args)); | |
} catch (NoSuchMethodException e) { | |
throw new RemotingException(channel, "Service method not found."); | |
} catch (InvocationTargetException e) { | |
return new MockResult(e.getTargetException()); | |
} | |
} | |
public static interface ServiceProvider { | |
Object getImplementation(String service); | |
} | |
} |