com.papteco.client.netty.LoadMailslistClientHandler.java Source code

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Here is the source code for com.papteco.client.netty.LoadMailslistClientHandler.java

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/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you 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 com.papteco.client.netty;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

import java.net.UnknownHostException;
import java.util.List;

import org.apache.log4j.Logger;

import com.papteco.client.ui.SharedBoard;
import com.papteco.web.beans.ClientRequestBean;

public class LoadMailslistClientHandler extends ChannelInboundHandlerAdapter {

    private static final Logger logger = Logger.getLogger(LoadMailslistClientHandler.class.getName());

    private ClientRequestBean req = new ClientRequestBean(NettyConstant.GET_MAILS_LIST);

    /**
     * Creates a client-side handler.
     * 
     * @throws UnknownHostException
     */
    public LoadMailslistClientHandler(String username) throws UnknownHostException {
        req.setReqUser(username);
    }

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        // Send the first message if this handler is a client-side handler.
        ctx.writeAndFlush(req);
    }

    @Override
    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
        // TODO Auto-generated method stub
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        // Echo back the received object to the server.
        ClientRequestBean bean = (ClientRequestBean) msg;
        if (bean.getAdditional6() != null)
            SharedBoard.MAILS_LIST = (List) bean.getAdditional6();
        ctx.close();
    }

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