How to use

setTaskScheduler

method

in

org.springframework.amqp.rabbit.listener.DirectMessageListenerContainer

@Override
protected void initializeContainer(DirectMessageListenerContainer instance, RabbitListenerEndpoint endpoint) {
  super.initializeContainer(instance, endpoint);
  if (this.taskScheduler != null) {
    instance.setTaskScheduler(this.taskScheduler);
  }
  if (this.monitorInterval != null) {
    instance.setMonitorInterval(this.monitorInterval);
  }
  if (endpoint != null && endpoint.getConcurrency() != null) {
    try {
      instance.setConsumersPerQueue(Integer.parseInt(endpoint.getConcurrency()));
    }
    catch (NumberFormatException e) {
      throw new IllegalStateException("Failed to parse concurrency: " + e.getMessage(), e);
    }
  }
  else if (this.consumersPerQueue != null) {
    instance.setConsumersPerQueue(this.consumersPerQueue);
  }
}

@Override
protected void initializeContainer(DirectMessageListenerContainer instance, RabbitListenerEndpoint endpoint) {
  super.initializeContainer(instance, endpoint);
  if (this.taskScheduler != null) {
    instance.setTaskScheduler(this.taskScheduler);
  }
  if (this.monitorInterval != null) {
    instance.setMonitorInterval(this.monitorInterval);
  }
  if (endpoint != null && endpoint.getConcurrency() != null) {
    try {
      instance.setConsumersPerQueue(Integer.parseInt(endpoint.getConcurrency()));
    }
    catch (NumberFormatException e) {
      throw new IllegalStateException("Failed to parse concurrency: " + e.getMessage(), e);
    }
  }
  else if (this.consumersPerQueue != null) {
    instance.setConsumersPerQueue(this.consumersPerQueue);
  }
  if (this.messagesPerAck != null) {
    instance.setMessagesPerAck(this.messagesPerAck);
  }
  if (this.ackTimeout != null) {
    instance.setAckTimeout(this.ackTimeout);
  }
}

container.setTaskScheduler(this.taskScheduler);

container.setTaskScheduler(this.taskScheduler);