dubbo DecodeHandler 源码
dubbo DecodeHandler 代码
文件路径：/dubbo-remoting/dubbo-remoting-api/src/main/java/org/apache/dubbo/remoting/transport/DecodeHandler.java
/*
* 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 org.apache.dubbo.remoting.transport;
import org.apache.dubbo.common.logger.Logger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.remoting.Channel;
import org.apache.dubbo.remoting.ChannelHandler;
import org.apache.dubbo.remoting.Decodeable;
import org.apache.dubbo.remoting.RemotingException;
import org.apache.dubbo.remoting.exchange.Request;
import org.apache.dubbo.remoting.exchange.Response;
public class DecodeHandler extends AbstractChannelHandlerDelegate {
private static final Logger log = LoggerFactory.getLogger(DecodeHandler.class);
public DecodeHandler(ChannelHandler handler) {
super(handler);
}
@Override
public void received(Channel channel, Object message) throws RemotingException {
if (message instanceof Decodeable) {
decode(message);
}
if (message instanceof Request) {
decode(((Request) message).getData());
}
if (message instanceof Response) {
decode(((Response) message).getResult());
}
handler.received(channel, message);
}
private void decode(Object message) {
if (!(message instanceof Decodeable)) {
return;
}
try {
((Decodeable) message).decode();
if (log.isDebugEnabled()) {
log.debug("Decode decodeable message " + message.getClass().getName());
}
} catch (Throwable e) {
if (log.isWarnEnabled()) {
log.warn("Call Decodeable.decode failed: " + e.getMessage(), e);
}
}
}
}
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