Question

为了在Camel上执行性能测量和审计日志记录，AuditEventNotifer实现如下。但是，每个事件都会记录两次。例如， 31140 的消息完成事件将被记录两次。有人能给我一些关于如何解决问题的提示吗？

路线定义

from(INBOUND_ENDPOINT).filter(header("foo").isEqualTo("bar")).to(
                "mock:result");

AuditEventNotifer Implementation

@Component
public class AuditEventNotifer extends EventNotifierSupport {

    private static final Logger LOGGER = LoggerFactory
            .getLogger(AuditEventNotifer.class);

    @Override
    public void notify(EventObject event) throws Exception {

        LOGGER.info(event.toString());
    }

以下是生成的日志

15:29:12.497 [thread #0 - JmsConsumer[ticket_queue]] INFO  AuditEventNotifer:19 - exchange completed: Exchange[JmsMessage[JmsMessageID: ID:fe80:0:0:0:be30:5bff:feee:6a24%em1a48e14979b5068a0:31140]]
15:29:12.497 [thread #0 - JmsConsumer[ticket_queue]] INFO  AuditEventNotifer:19 - exchange completed: Exchange[JmsMessage[JmsMessageID: ID:fe80:0:0:0:be30:5bff:feee:6a24%em1a48e14979b5068a0:31140]]
15:29:12.497 [thread #0 - JmsConsumer[ticket_queue]] INFO  AuditEventNotifer:19 - exchange completed: Exchange[JmsMessage[JmsMessageID: ID:fe80:0:0:0:be30:5bff:feee:6a24%em1a48e14979b5068a0:31141]]
15:29:12.497 [thread #0 - JmsConsumer[ticket_queue]] INFO  AuditEventNotifer:19 - exchange completed: Exchange[JmsMessage[JmsMessageID: ID:fe80:0:0:0:be30:5bff:feee:6a24%em1a48e14979b5068a0:31141]]
15:29:12.498 [thread #0 - JmsConsumer[ticket_queue]] INFO  AuditEventNotifer:19 - exchange completed: Exchange[JmsMessage[JmsMessageID: ID:fe80:0:0:0:be30:5bff:feee:6a24%em1a48e14979b5068a0:31142]]
15:29:12.498 [thread #0 - JmsConsumer[ticket_queue]] INFO  AuditEventNotifer:19 - exchange completed: Exchange[JmsMessage[JmsMessageID: ID:fe80:0:0:0:be30:5bff:feee:6a24%em1a48e14979b5068a0:31142]]
15:29:12.498 [thread #0 - JmsConsumer[ticket_queue]] INFO  AuditEventNotifer:19 - exchange completed: Exchange[JmsMessage[JmsMessageID: ID:fe80:0:0:0:be30:5bff:feee:6a24%em1a48e14979b5068a0:31143]]
15:29:12.498 [thread #0 - JmsConsumer[ticket_queue]] INFO  AuditEventNotifer:19 - exchange completed: Exchange[JmsMessage[JmsMessageID: ID:fe80:0:0:0:be30:5bff:feee:6a24%em1a48e14979b5068a0:31143]]

Answer 1

检查通知程序bean是否未配置两次。如果该类使用@Component注释，那么bean必须在Spring XML配置中定义：

~~<bean id="auditEventNotifier" class="your.package.AuditEventNotifer" />~~

选择一种或另一种可能性，但不是两种。

Answer 2

由于您没有覆盖

public boolean isEnabled(EventObject event)

它为每个事件状态打印消息。

例如：如果您希望邮件在发送时仅打印一次，请检查下面的代码块。

@Component
public class AuditEventNotifer extends EventNotifierSupport {

    private static final Logger LOGGER = LoggerFactory
            .getLogger(AuditEventNotifer.class);

    @Override
    public boolean isEnabled(EventObject event) {
        return event instanceof ExchangeSentEvent;
    }
    @Override
    public void notify(EventObject event) throws Exception {

        LOGGER.info(event.toString());
    }

}

Camel EventNotifierSupport生成重复输出

2 个答案: