List<MessageExt> msgs = this.processQueue.takeMessags(consumeBatchSize);
if (!msgs.isEmpty()) {
final ConsumeOrderlyContext context =
new ConsumeOrderlyContext(this.messageQueue);
ConsumeOrderlyStatus status = null;
// 执行Hook
ConsumeMessageContext consumeMessageContext = null;
if (ConsumeMessageOrderlyService.this.defaultMQPushConsumerImpl.hasHook()) {
consumeMessageContext = new ConsumeMessageContext();
consumeMessageContext
.setConsumerGroup(ConsumeMessageOrderlyService.this.defaultMQPushConsumer
.getConsumerGroup());
consumeMessageContext.setMq(messageQueue);
consumeMessageContext.setMsgList(msgs);
consumeMessageContext.setSuccess(false);
ConsumeMessageOrderlyService.this.defaultMQPushConsumerImpl
.executeHookBefore(consumeMessageContext);
}
long beginTimestamp = System.currentTimeMillis();
try {
this.processQueue.getLockConsume().lock();
if (this.processQueue.isDroped()) {
log.warn(
"consumeMessage, the message queue not be able to consume, because it's dropped. {}",
this.messageQueue);
break;
}
status =
messageListener.consumeMessage(Collections.unmodifiableList(msgs),
context);
}
catch (Throwable e) {
log.warn("consumeMessage exception: {} Group: {} Msgs: {} MQ: {}",//
RemotingHelper.exceptionSimpleDesc(e),//
ConsumeMessageOrderlyService.this.consumerGroup,//
msgs,//
messageQueue);
}
finally {
this.processQueue.getLockConsume().unlock();
}
// 针对异常返回代码打印日志
if (null == status //
|| ConsumeOrderlyStatus.ROLLBACK == status//
|| ConsumeOrderlyStatus.SUSPEND_CURRENT_QUEUE_A_MOMENT == status) {
log.warn("consumeMessage Orderly return not OK, Group: {} Msgs: {} MQ: {}",//
ConsumeMessageOrderlyService.this.consumerGroup,//
msgs,//
messageQueue);
}
long consumeRT = System.currentTimeMillis() - beginTimestamp;
// 用户抛出异常或者返回null，都挂起队列
if (null == status) {
status = ConsumeOrderlyStatus.SUSPEND_CURRENT_QUEUE_A_MOMENT;
}
// 执行Hook
if (ConsumeMessageOrderlyService.this.defaultMQPushConsumerImpl.hasHook()) {
consumeMessageContext.setStatus(status.toString());
consumeMessageContext.setSuccess(ConsumeOrderlyStatus.SUCCESS == status
|| ConsumeOrderlyStatus.COMMIT == status);
ConsumeMessageOrderlyService.this.defaultMQPushConsumerImpl
.executeHookAfter(consumeMessageContext);
}