@Override
public JsonElement serialize(Throwable src, Type typeOfSrc, JsonSerializationContext context) {
JsonObject jsonObject = new JsonObject();
jsonObject.add("class", new JsonPrimitive(src.getClass().getName()));
if (src.getMessage() != null) {
jsonObject.add("message", new JsonPrimitive(src.getMessage()));
}
return jsonObject;
}
/**
* Signal exceptional cancellation of this job.
*
* @param ex exception causing the termination of job.
*/
public void cancel(Throwable ex) {
if (ex instanceof JobCancelledException
|| ex.getMessage() != null && ex.getMessage().contains("job was cancelled")) return;
if (ex instanceof IllegalArgumentException
|| ex.getCause() instanceof IllegalArgumentException) {
cancel("Illegal argument: " + ex.getMessage());
return;
}
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
ex.printStackTrace(pw);
String stackTrace = sw.toString();
cancel(
"Got exception '" + ex.getClass() + "', with msg '" + ex.getMessage() + "'\n" + stackTrace,
JobState.FAILED);
if (_fjtask != null && !_fjtask.isDone()) _fjtask.completeExceptionally(ex);
}
public void onException(Throwable ex) {
UKV.remove(dest());
Value v = DKV.get(progressKey());
if (v != null) {
ChunkProgress p = v.get();
p = p.error(ex.getMessage());
DKV.put(progressKey(), p);
}
cancel(ex);
}