org.bermuda.cartilage.core.ConnectionController.java Source code

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Here is the source code for org.bermuda.cartilage.core.ConnectionController.java

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/**
 * Copyright (c) 2014 Samuel Hammersley - Gonsalves, Cartilage
 *
 * 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 org.bermuda.cartilage.core;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.ReferenceCountUtil;
import org.bermuda.cartilage.util.Logger;

/**
 * @author Cartilage
 * Processes all incoming connection requessts and packets
 */
public class ConnectionController extends ChannelInboundHandlerAdapter {

    private UserSession session;

    private Logger logger = new Logger(ConnectionController.class.getName());

    @Override
    public void exceptionCaught(ChannelHandlerContext context, Throwable cause) {
        logger.info("Exception occurred for channel " + context.channel());
        cause.printStackTrace();
        context.close();
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object message) {
        ByteBuf buffer = (ByteBuf) message;
        try {
            logger.info("Incoming message : " + buffer.readUnsignedInt());
        } finally {
            ReferenceCountUtil.release(message);
        }
    }

    @Override
    public void channelActive(final ChannelHandlerContext ctx) {
        final ByteBuf message = ctx.alloc().buffer(4);
        message.writeInt(12345);
        final ChannelFuture future = ctx.writeAndFlush(message);
        future.addListener(f -> {
            if (f.isSuccess()) {
                session = new UserSession(ctx.channel());
                logger.info("Message sent");
            }
        });
    }

    @Override
    public void channelRegistered(ChannelHandlerContext ctx) {
        logger.info("Incoming connection from " + ctx.channel());
    }

    @Override
    public void channelUnregistered(ChannelHandlerContext ctx) {
        logger.info("Connection closed for " + ctx.channel());
    }
}