com.barchart.netty.common.pipeline.WebSocketBinaryCodec.java Source code

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Here is the source code for com.barchart.netty.common.pipeline.WebSocketBinaryCodec.java

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/**
 * Copyright (C) 2011-2014 Barchart, Inc. <http://www.barchart.com/>
 *
 * All rights reserved. Licensed under the OSI BSD License.
 *
 * http://www.opensource.org/licenses/bsd-license.php
 */
package com.barchart.netty.common.pipeline;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToMessageCodec;
import io.netty.handler.codec.http.websocketx.BinaryWebSocketFrame;

import java.util.List;

/**
 * Codec that converts between ByteBuf and BinaryWebSocketFrame for transport
 * agnostic binary protocols.
 */
public class WebSocketBinaryCodec extends MessageToMessageCodec<BinaryWebSocketFrame, ByteBuf> {

    public WebSocketBinaryCodec() {
        super(BinaryWebSocketFrame.class, ByteBuf.class);
    }

    @Override
    protected void encode(final ChannelHandlerContext ctx, final ByteBuf msg, final List<Object> out)
            throws Exception {
        out.add(new BinaryWebSocketFrame(msg.retain()));
    }

    @Override
    protected void decode(final ChannelHandlerContext ctx, final BinaryWebSocketFrame msg, final List<Object> out)
            throws Exception {
        out.add(msg.content().retain());
    }

}