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SPL(Structured Process Language) A programming language specially for structured data computing.

There is a newer version: 20240823

package com.scudata.parallel;

import java.io.Serializable;

import com.scudata.common.RQException;

/**
 * ??????Ӧ
 * 
 * @author Joancy
 *
 */
public class Response implements Serializable {
	private static final long serialVersionUID = -5641784958339382118L;
	
	private Exception exception = null;//һ???Եļ????쳣
	private Error error = null;//??????ȴ????ڴ??????
	private Object result = null;
	
	transient String fromHost = null;
	/**
	 * ????ȱʡ??Ӧ
	 */
	public Response() {
	}
	
	/**
	 * ??????Ӧ????
	 * @param result ????ֵ
	 */
	public Response(Object result) {
		this.result = result;
	}
	
	/**
	 * ??????Ӧ??ip??Դ
	 * @param ip ip??ַ
	 */
	public void setFromHost(String ip){
		this.fromHost = ip;
	}
	
	/**
	 * ȡ??Ӧ?е??쳣
	 * @return ???쳣ʱ?????쳣?????򷵻?null 
	 */
	public Exception getException() {
		return exception;
	} 
	
	/**
	 * ??????Ӧ???쳣
	 * @param e ?쳣????
	 */
	public void setException(Exception e) {
		this.exception = e;
	}
	
	/**
	 * ??????Ӧ?Ĵ???
	 * @param e ???????
	 */
	public void setError(Error e){
		this.error = e;
	}
	/**
	 * ȡ??Ӧ?Ĵ???
	 * @return ???????
	 */
	public Error getError(){
		return error;
	}
	

	/**
	 * ȡ??Ӧ???
	 * @return ???ֵ
	 */
	public Object getResult() {
		return result;
	}

	/**
	 * ??????Ӧ?Ľ??ֵ
	 * @param res ???ֵ
	 */
	public void setResult(Object res) {
		this.result = res;
	}
	
	/**
	 * ???ݽ???Լ??쳣??Ϣ?????з?????Ӧ???
	 * @return ??Ӧ????Ӧֵ
	 */
	public Object checkResult() {
		if (result != null) {
			return result;
		} else if (exception != null) {
			throw new RQException("["+fromHost+"]"+exception.getMessage(), exception);
		} else if (error != null) {
			throw new RQException("["+fromHost+"]"+error.getMessage(), error);
		} else {
			return null; // ?????null
		}
	}
}