private void processBatchedItems() throws ProcessingException {
final int effectiveBatchSize = determineBatchSize();
List<E> batch = getItemsFromQueue(effectiveBatchSize);
final int retryAttempts = config.getRetryAttempts();
int executionsLeft = retryAttempts + 1;
while (executionsLeft-- > 0) {
try {
processor.process(batch);
break;
} catch (final RuntimeException e) {
LOGGER.warn(
"processBatchedItems caught error while processing batch of "
+ batch.size()
+ " error "
+ e);
if (executionsLeft <= 0) {
for (E item : batch) {
try {
processor.throwAway(item, e);
} catch (final Throwable th) {
LOGGER.warn(
"processBatchedItems caught error while throwing away an item: "
+ item
+ " error "
+ th);
}
}
} else {
LOGGER.warn(
getThreadName()
+ " : processBatchedItems() : exception during processing, retrying in "
+ retryAttempts
+ " milliseconds, "
+ executionsLeft
+ " retries left : "
+ e);
try {
Thread.sleep(config.getRetryAttemptDelay());
} catch (InterruptedException e1) {
Thread.currentThread().interrupt();
throw e;
}
}
}
}
removeFromQueue(effectiveBatchSize);
}
private void processSingleItem() throws ProcessingException {
// process the next item
final E item = getItemsFromQueue(1).get(0);
final int retryAttempts = config.getRetryAttempts();
int executionsLeft = retryAttempts + 1;
while (executionsLeft-- > 0) {
try {
processor.process(item);
break;
} catch (final RuntimeException e) {
if (executionsLeft <= 0) {
try {
processor.throwAway(item, e);
} catch (final Throwable th) {
LOGGER.warn(
"processSingleItem caught error while throwing away an item: " + item + " " + th);
}
} else {
LOGGER.warn(
getThreadName()
+ " : processSingleItem() : exception during processing, retrying in "
+ retryAttempts
+ " milliseconds, "
+ executionsLeft
+ " retries left : "
+ e.getMessage());
try {
Thread.sleep(config.getRetryAttemptDelay());
} catch (InterruptedException e1) {
Thread.currentThread().interrupt();
throw e;
}
}
}
}
removeFromQueue(1);
}
