/**
* {@link RemoteUtil#unwrap(Throwable) unwraps} given exception if possible and builds error
* message for it.
*
* @param e exception to process
* @return error message for the given exception
*/
@SuppressWarnings({"ThrowableResultOfMethodCallIgnored", "IOResourceOpenedButNotSafelyClosed"})
@NotNull
public static String buildErrorMessage(@NotNull Throwable e) {
Throwable unwrapped = RemoteUtil.unwrap(e);
String reason = unwrapped.getLocalizedMessage();
if (!StringUtil.isEmpty(reason)) {
return reason;
} else if (unwrapped.getClass() == ExternalSystemException.class) {
return String.format(
"exception during working with external system: %s",
((ExternalSystemException) unwrapped).getOriginalReason());
} else {
StringWriter writer = new StringWriter();
unwrapped.printStackTrace(new PrintWriter(writer));
return writer.toString();
}
}
