/*
 * Copyright (c) 2013, OpenCloudDB/MyCAT and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software;Designed and Developed mainly by many Chinese 
 * opensource volunteers. you can redistribute it and/or modify it under the 
 * terms of the GNU General Public License version 2 only, as published by the
 * Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 * 
 * Any questions about this component can be directed to it's project Web address 
 * https://code.google.com/p/opencloudb/.
 *
 */
package com.talent.nio.handler.error.client;

import java.io.IOException;
import java.nio.channels.SocketChannel;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.talent.nio.api.Nio;
import com.talent.nio.communicate.ChannelContext;
import com.talent.nio.handler.error.intf.IOErrorHandlerIntf;

/**
 * 
 * @author 谭耀武
 * @date 2012-08-09
 * 
 */
public class DefaultIOErrorHandler implements IOErrorHandlerIntf
{
    /**
     * 
     */
    private static final long serialVersionUID = 3266926133526484161L;

    private static final Logger log = LoggerFactory.getLogger(DefaultIOErrorHandler.class);

    private static DefaultIOErrorHandler instance = null;

    public static DefaultIOErrorHandler getInstance()
    {
        if (instance == null)
        {
            instance = new DefaultIOErrorHandler();
        }
        return instance;
    }

    /**
     * 
     */
    protected DefaultIOErrorHandler()
    {

    }

    @Override
    public void handle(SocketChannel socketChannel, IOException e, ChannelContext channelContext, String customMsg)
    {
        String reasonString = null;
        if (channelContext != null)
        {
            StringBuilder buffer = new StringBuilder();
            String _customMsg = customMsg == null ? "IOException" : customMsg;
            buffer.append(channelContext.getId() + " " + _customMsg);
            if (e != null)
            {
                reasonString = e.getMessage();
                log.error(buffer.toString(), e);
            } else
            {
                log.error(buffer.toString());
            }
        }
		Nio.getInstance().disconnect(channelContext, reasonString);
    }

    /**
     * @param args
     */
    public static void main(String[] args)
    {

    }
}