execfunctionfailexception.java

银行项目为后台ｓｏｃｋｅｔ通信写的程序

/****************************************************************************
 * Package		: com.ecSolutions.ecAppServer.appSession
 * File			: ExecFunctionFailException.java
 * Create Date  : 2007-7-22
 * Author		: Steven Chen
 * 
 * Copyright(C) 2006 ecSolutions(shanghai) Co.,Limited.All Rights Reserved.
 *			
 ***************************************************************************/
package com.ecSolutions.ecAppServer.appSession;

public class ExecFunctionFailException extends Exception{
	private Throwable cause = null;

	public ExecFunctionFailException(String msg) {
		super(msg);
	}
	
	public ExecFunctionFailException(Throwable cause) {
		super();
		this.cause = cause;
	}
	
	public ExecFunctionFailException(String msg, Throwable cause) {
		super(msg);
		this.cause = cause;
	}

	/**
	 * Gets the causing exception, if any.
	 */
	public Throwable getCausedByException() {
		return cause;
	}

	public String toString() {
		if (cause == null) {
			return super.toString();
		} else {
			return super.toString() + "  <---- Caused by: " + cause.toString() + " ---->";
		}
	}

	public void printStackTrace() {
        super.printStackTrace();
        if (cause != null) {
            System.err.println("<---- Caused by:");
			cause.printStackTrace();
			System.err.println("---->");
		}
	}

	public void printStackTrace(java.io.PrintStream ps) {
		super.printStackTrace(ps);
		if (cause != null) {
			ps.println("<---- Caused by:");
			cause.printStackTrace(ps);
			ps.println("---->");
		}
	}

	public void printStackTrace(java.io.PrintWriter pw) {
		super.printStackTrace(pw);
		if (cause != null) {
			pw.println("<---- Caused by:");
			cause.printStackTrace(pw);
			pw.println("---->");
		}
	}
}