core.communication.threadpool.io.CallClientHandler.java Source code

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Here is the source code for core.communication.threadpool.io.CallClientHandler.java

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/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project 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 core.communication.threadpool.io;

import core.common.constant.ServiceConstants;
import core.communication.frame.ByteBufWrapper;
import core.communication.stream.ClientStream;
import core.communication.stream.Stream;
import core.communication.stream.StreamManager;
import core.service.invokehandler.MessageResponse;
import core.service.invokehandler.ResponseHolder;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Handler implementation for the echo bootstrap.client.  It initiates the ping-pong
 * traffic between the echo bootstrap.client and bootstrap.server by sending the first message to
 * the bootstrap.server.
 */
public class CallClientHandler extends ChannelInboundHandlerAdapter {

    private static final Logger sysLogger = LoggerFactory.getLogger(CallClientHandler.class);

    private Stream stream = StreamManager.getStream();

    @Override
    public void channelActive(ChannelHandlerContext ctx) {
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) {
        ByteBuf respBuf = (ByteBuf) msg;
        ByteBufWrapper byteBufWrapper = new ByteBufWrapper(respBuf);

        if (byteBufWrapper.readLong() == ServiceConstants.VERSION) {
            ClientStream client = stream.createClient();
            MessageResponse response = client.analyzeResponseBytes(byteBufWrapper);
            ResponseHolder holder = ResponseHolder.responseMap.get(response.getMessageId());
            if (holder != null) {
                ResponseHolder.responseMap.remove(response.getMessageId());
                holder.setResponse(response);
            }
        }
    }

    @Override
    public void channelReadComplete(ChannelHandlerContext ctx) {
        ctx.flush();
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
        // Close the connection when an exception is raised.
        cause.printStackTrace();
        ctx.close();
    }
}