use of com.amazonaws.services.logs.model.InvalidSequenceTokenException in project cas by apereo.
the class CloudWatchAppender method flush.
private void flush() {
int drained;
final List<InputLogEvent> logEvents = new ArrayList<>(AWS_DRAIN_LIMIT);
do {
drained = queue.drainTo(logEvents, AWS_DRAIN_LIMIT);
if (logEvents.isEmpty()) {
break;
}
logEvents.sort(Comparator.comparing(InputLogEvent::getTimestamp));
if (lastReportedTimestamp > 0) {
for (final InputLogEvent event : logEvents) {
if (event.getTimestamp() < lastReportedTimestamp) {
event.setTimestamp(lastReportedTimestamp);
}
}
}
lastReportedTimestamp = logEvents.get(logEvents.size() - 1).getTimestamp();
final PutLogEventsRequest putLogEventsRequest = new PutLogEventsRequest(logGroupName, logStreamName, logEvents);
putLogEventsRequest.setSequenceToken(sequenceTokenCache);
try {
final PutLogEventsResult putLogEventsResult = awsLogsClient.putLogEvents(putLogEventsRequest);
sequenceTokenCache = putLogEventsResult.getNextSequenceToken();
} catch (final DataAlreadyAcceptedException daae) {
sequenceTokenCache = daae.getExpectedSequenceToken();
} catch (final InvalidSequenceTokenException iste) {
sequenceTokenCache = iste.getExpectedSequenceToken();
} catch (final Exception e) {
LOGGER.error(e.getMessage(), e);
}
logEvents.clear();
} while (drained >= AWS_DRAIN_LIMIT);
}
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