eu.smartenit.sbox.interfaces.intersbox.server.InterSBoxServerH.java Source code

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Here is the source code for eu.smartenit.sbox.interfaces.intersbox.server.InterSBoxServerH.java

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/**
 * Copyright (C) 2014 The SmartenIT consortium (http://www.smartenit.eu)
 *
 * 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 eu.smartenit.sbox.interfaces.intersbox.server;

import eu.smartenit.sbox.interfaces.intersbox.client.InterSBoxObject;

import com.fasterxml.jackson.databind.ObjectMapper;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.buffer.ByteBuf;
import io.netty.util.CharsetUtil;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.handler.codec.string.StringDecoder;

import java.net.InetSocketAddress;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class InterSBoxServerH extends ChannelInboundHandlerAdapter {

    private static final Logger logger = LoggerFactory.getLogger(InterSBoxServerH.class);
    private final InterSBoxServer server;

    public InterSBoxServerH(InterSBoxServer server) {
        this.server = server;
    }

    private ObjectMapper mapper;

    private ObjectMapper mymapper() {
        if (mapper == null) {
            mapper = new ObjectMapper();
        }
        return mapper;
    }

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        String host = ((InetSocketAddress) ctx.channel().remoteAddress()).getAddress().getHostAddress();
        int port = ((InetSocketAddress) ctx.channel().remoteAddress()).getPort();
        logger.debug("Server connected from host:" + host + ":" + port);
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        // Echo back the received object to the client.
        String str = (String) msg;
        String host = ((InetSocketAddress) ctx.channel().remoteAddress()).getAddress().getHostAddress();
        int port = ((InetSocketAddress) ctx.channel().remoteAddress()).getPort();
        logger.debug("Server received something : " + str + "host:" + host + ":" + port);
        InterSBoxObject receivedObject = mymapper().readValue(str, InterSBoxObject.class);
        server.received(receivedObject);
        ctx.writeAndFlush(new String("ACK"));
    }

    @Override
    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
        String host = ((InetSocketAddress) ctx.channel().remoteAddress()).getAddress().getHostAddress();
        int port = ((InetSocketAddress) ctx.channel().remoteAddress()).getPort();
        logger.debug("Server readcomplete from host:" + host + ":" + port);
        ctx.flush();
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        logger.error("Unexpected exception from downstream." + cause);
        ctx.close();
        throw ((Exception) cause);
    }
}