org.mbmg.tcp.server.ServerHandler.java Source code

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Here is the source code for org.mbmg.tcp.server.ServerHandler.java

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package org.mbmg.tcp.server;
/*
 * 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.
 */

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

import java.util.List;

import org.mbmg.tcp.util.Parser;
import org.mbmg.tcp.util.Record;

public class ServerHandler extends ChannelInboundHandlerAdapter {

    public ServerHandler() {
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) {
        ByteBuf in = (ByteBuf) msg;
        try {
            System.out.println("channelRead");
            String receivedContent = in.toString(io.netty.util.CharsetUtil.US_ASCII);
            new Consumer(receivedContent).start();
            // send back message to the datalogger to notify it the bytes were correctly received
            ctx.writeAndFlush("@888");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            in.release();
        }
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
        // Close the connection when an exception is raised.
        System.out.println("Exception caught in ServerHandler");
        cause.printStackTrace();
        ctx.close();
    }

    private class Consumer extends Thread {

        private final String receivedContent;

        public Consumer(String receivedContent) {
            this.receivedContent = receivedContent;
        }

        @Override
        public void run() {
            try {
                if (!receivedContent.startsWith("@")) {
                    // Parse packet
                    Record newRecord = Parser.toRecord(receivedContent);

                    // Send data to Carbon
                    List<String> channelData = newRecord.toGraphite();
                    for (String chanelSample : channelData) {
                        GraphiteClient.getClient().sendData(chanelSample);
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}