net.hasor.rsf.remoting.transport.netty.RSFProtocolEncoder.java Source code

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Here is the source code for net.hasor.rsf.remoting.transport.netty.RSFProtocolEncoder.java

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/*
 * Copyright 2008-2009 the original (zyc@hasor.net).
 *
 * 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 net.hasor.rsf.remoting.transport.netty;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelPromise;
import io.netty.handler.codec.MessageToByteEncoder;
import net.hasor.rsf.remoting.transport.protocol.block.RequestSocketBlock;
import net.hasor.rsf.remoting.transport.protocol.block.ResponseSocketBlock;
import net.hasor.rsf.remoting.transport.protocol.codec.Protocol;
import net.hasor.rsf.remoting.transport.protocol.message.RequestMsg;
import net.hasor.rsf.remoting.transport.protocol.message.ResponseMsg;
import net.hasor.rsf.utils.ProtocolUtils;
import net.hasor.rsf.utils.TransferUtils;

/**
 * ?
 * @version : 20141010
 * @author (zyc@hasor.net)
 */
public class RSFProtocolEncoder extends MessageToByteEncoder<Object> {
    public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
        super.write(ctx, msg, promise);
        ctx.flush();
    }

    protected void encode(ChannelHandlerContext ctx, Object msg, ByteBuf out) throws Exception {
        //1.MetaData ? SocketBlock
        if (msg instanceof RequestMsg) {
            msg = TransferUtils.requestToBlock((RequestMsg) msg); //request
        }
        if (msg instanceof ResponseMsg) {
            msg = TransferUtils.responseToBlock((ResponseMsg) msg);//response
        }
        //
        //2.SocketBlock ? ByteBuf
        if (msg instanceof RequestSocketBlock) {
            RequestSocketBlock request = (RequestSocketBlock) msg;
            Protocol<RequestSocketBlock> requestProtocol = ProtocolUtils.requestProtocol(request.getVersion());
            requestProtocol.encode((RequestSocketBlock) msg, out);//request
        }
        if (msg instanceof ResponseSocketBlock) {
            ResponseSocketBlock response = (ResponseSocketBlock) msg;
            Protocol<ResponseSocketBlock> responseProtocol = ProtocolUtils.responseProtocol(response.getVersion());
            responseProtocol.encode((ResponseSocketBlock) msg, out);//response
        }
    }
}