mtons.utils.Exceptions Maven / Gradle / Ivy

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/*
+--------------------------------------------------------------------------
|   mtons [#RELEASE_VERSION#]
|   ========================================
|   Copyright (c) 2014, 2015 mtons. All Rights Reserved
|   http://www.mtons.com
|
+---------------------------------------------------------------------------
*/
package mtons.utils;

import java.io.PrintWriter;
import java.io.StringWriter;

/**
 * 关于异常的工具类.
 * 
 */
public class Exceptions {

	/**
	 * 将ErrorStack转化为String.
	 * @param e 异常对象
	 * @return string
	 */
	public static String buildMessage(Exception e) {
		StringWriter stringWriter = new StringWriter();
		e.printStackTrace(new PrintWriter(stringWriter));
		return stringWriter.toString();
	}

	/**
	 * Build a message for the given base message and root cause.
	 * @param message the base message
	 * @param cause the root cause
	 * @return the full exception message
	 */
	public static String buildMessage(String message, Throwable cause) {
		if (cause != null) {
			StringBuilder sb = new StringBuilder();
			if (message != null) {
				sb.append(message).append("; ");
			}
			sb.append("nested exception is ").append(cause);
			return sb.toString();
		}
		else {
			return message;
		}
	}

}