package com.nms.server.util.socket;

import java.io.IOException;
import java.net.Socket;
import java.net.SocketException;
import java.util.Calendar;
import java.util.concurrent.Callable;

import javax.net.ssl.SSLServerSocket;

import org.apache.log4j.Logger;

import com.nms.server.common.Common;
import com.nms.server.common.Constants;

/**
 * 	SSL 通讯 工具类
 *  @date Feb 29, 2012 10:05:50 AM
 *	@author ZhangGang
 *
 */
public abstract class SSLSocketCallable extends SocketUtils implements Callable<Object>{
	
	private static Logger logger = Logger.getLogger(SSLSocketCallable.class);
	//ServerSocket 通讯服务
	protected SSLServerSocket ss = null;
	private boolean clientFlag = false;// 是否dc server 接收的client
    /**
     * 通讯创建
	 * @param ip		目标主机IP
	 * @param port		目标主机端口
	 * @throws Exception
	 */
	public SSLSocketCallable(String ip,Integer port){
		super(ip, port);
	}
	
    /**
     * 通讯创建
     * @param client	目标通讯实例
	 */
    public SSLSocketCallable(Socket client) {
    	super(client);
    	clientFlag = true;
    }
	
	/**
	 * 通讯线程执行方法 默认格式
	 * @return
	 * @throws Exception
	 */
	public Object call(){
		Thread.currentThread().setName("Create communication"+ip+":"+port);
		Object obj = null;		//返回对象
		try {
			try {
				//- 校验 是否创建新通讯连接
				if(socket==null){	//客户端通讯创建
					createClientSocket();
				}else{	//服务端通讯创建
					createServerSocket();
				}
				
			} catch (SocketException e) {
				logger.error("Create failed："+e.getMessage(),e);
				Common.addErrorInfo(Constants.ERROR_CODE_CREATE_SOCKET,ip, Calendar.getInstance().getTime(), Constants.ERROR_INFO_SATAE_ERROR,"");
				close();
				return obj;
			} catch (Exception e) {
				close();
				return obj;
		    }
			
			//-- 自定义通讯操作
			try {
				obj = toDo();
			}catch (Exception e) {
				logger.error("Communicate contents exception"+e.getMessage(),e);
				Common.addErrorInfo(Constants.ERROR_CODE_SOCKET_RUNTIME,ip, Calendar.getInstance().getTime(), Constants.ERROR_INFO_SATAE_ERROR,"");
			} finally {
				close();
			}
		} finally {
			if(clientFlag){
				Common.releaseServerSemaphore();//释放server信号量
			}
		}
		return obj;
	}
	
	/**
	 * 待实现的通信操作
	 * @time Aug 28, 2011-9:04:46 PM
	 * @param outl
	 * @param inl
	 * @throws Exception
	 */

	protected abstract Object toDo()throws Exception;
	
	
}