package com.vci.common.exception;

public class VciExceptionTool {

	/**
	 * 获取异常的首行显示信息
	 * @param e
	 * @return
	 */
	public static String getExceptionStr(Throwable e) {
		if (e == null) {
			return "";
		}
		String str = "";
		if (e.getCause() != null) {
			str = e.getCause().toString();
		} else {
			str = e.toString();
		}
		
		if (str == null) {
			str = "";
		}
		return str;
	}
	
	/**
	 * 获取异常的所有信息
	 * @param e
	 * @return
	 */
	public static String getExceptionDetail(Throwable e) {
		if (e == null) {
			return "";
		}
		StringBuffer msg = new StringBuffer("");
		msg.append(getStackTraceDetail(e));
		if (e.getCause() != null) {
			msg.append(getStackTraceDetail(e.getCause()));
		}
		return msg.toString();
	}
	
	private static String getStackTraceDetail(Throwable e) {
		StringBuffer msg = new StringBuffer("");
		String message = e.toString();
		int length = e.getStackTrace().length;
		if (length > 0) {
			msg.append(message + "\n");
			for (int i = 0; i < length; i++) {
				msg.append("\t" + e.getStackTrace()[i] + "\n");
			}
			
		} else {
			msg.append(message);
		}
		
		return msg.toString();
	}
}