@Override
public void postToFeed(final User user, final Throwable ex) {
LogHelper.logException(this.getClass(), ex);
try {
postToFeed(user, ExceptionUtils.getStackTrace(ex), FeedType.error);
} catch (NimbitsException e) {
LogHelper.logException(this.getClass(), e);
}
}
/**
* Send mailNotications.
*
* @param message The message body itself
* @param eventType Type of notification
* @param e An exception (can be null)
*/
private void sendMailNotifications(String message, NotificationType eventType, Throwable e) {
String subjectPrefix = SUBJECT_PREFIX + "-" + eventType + ": ";
// Subject is a specified string + first line of error message
String subject = subjectPrefix + message.split("\n")[0];
// Body consists of four parts.
StringBuffer body = new StringBuffer();
// 1: The host of the message
body.append("Host: " + SystemUtils.getLocalHostName() + "\n");
body.append("Date: " + new Date().toString() + "\n");
// 2: The origin of the message, found by inspecting stack trace
for (StackTraceElement elm : Thread.currentThread().getStackTrace()) {
if (!elm.toString().startsWith(getClass().getName())
&& !elm.toString().startsWith(Notifications.class.getName())
&& !elm.toString().startsWith(Thread.class.getName())) {
body.append(elm.toString() + "\n");
break;
}
}
// 3: The given message
body.append(message + "\n");
// 4: Optionally the exception
if (e != null) {
body.append(ExceptionUtils.getStackTrace(e));
}
try {
// Send the mail
EMailUtils.sendEmail(MAIL_RECEIVER, MAIL_SENDER, subject, body.toString());
// Log as error
log.error("Mailing {}{}", subjectPrefix, message, e);
} catch (Exception e1) {
// On trouble: Log and print it to system out, it's the best we can
// do!
String msg =
"Could not send email on "
+ eventType.toString().toLowerCase()
+ " notification:\n"
+ body.toString()
+ "\n";
System.err.println(msg);
e1.printStackTrace(System.err);
log.error(msg, e1);
}
}
public static void handleException(RestRequest request, RestResponse response, Throwable ex) {
Throwable rootCause = ExceptionUtils.getRootCause(ex);
rootCause = rootCause == null ? ex : rootCause;
logger.error("捕获到Rest异常：request={}", request, rootCause);
RestError restError = new RestError();
restError.setErrorCode(2);
if (ex instanceof RestServiceException) {
RestServiceException rse = (RestServiceException) ex;
if (rse.getErrorCode() != 0) {
restError.setErrorCode(rse.getErrorCode());
}
restError.setErrorInfo(rse.getMessage());
} else {
restError.setErrorInfo(RestApiConstants.DEFAULT_ERROR_INFO);
if (request.isDebug()) {
String stackTrace = ExceptionUtils.getStackTrace(rootCause);
// 截取有用的部分
stackTrace = StringUtils.substringBefore(stackTrace, RestApiConstants.STACK_TRACE_BEFORE);
response.setDebugInfo(stackTrace);
}
// 统计响应结果
recordToErrorCounter(request.getCmd());
}
response.setStatusCode(500);
response.setError(restError);
response.setResponseTime(new Date());
}
private String getTrace() {
return ExceptionUtils.getStackTrace(this);
}