com.friz.owari.network.codec.ExchangeDecoder.java Source code

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Here is the source code for com.friz.owari.network.codec.ExchangeDecoder.java

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/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Kyle Fricilone
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.friz.owari.network.codec;

import java.util.List;

import com.friz.owari.network.event.impl.ExchangeRecieveEvent;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;

/**
 * @author Kyle Fricilone
 * @date Jun 12, 2016
 */
public class ExchangeDecoder extends ByteToMessageDecoder {

    /* (non-Javadoc)
     * @see io.netty.handler.codec.ByteToMessageCodec#decode(io.netty.channel.ChannelHandlerContext, io.netty.buffer.ByteBuf, java.util.List)
     */
    @Override
    protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
        if (!in.isReadable())
            return;

        int len = in.readInt();
        byte[] enc = new byte[len];
        in.readBytes(enc);

        out.add(new ExchangeRecieveEvent(enc));
    }

}