我编写了一个处理器模块,它得到 String
有效负载并返回结果为 LogFileTuple
类型。这个模块运行良好。
我编写了另一个模块,该模块获取 LogFileTuple
作为输入。但是当将流部署为: Source | Module1 | Module2 | Sink
获取MessageDeliveryException
.
我的转换方法:
public Event transform(LogFileTuple payload) {
if (payload == null) {
return null;
}
try {
Event event = logParser.parse(payload);
if (event != null) {
return event;
} else {
logger.warn("LogParser result is null: {}.", payload);
return null;
}
} catch (Exception e) {
logger.warn("Cannot parse logFileTuple: {}.", payload, e);
return null;
}
}
我的 Module2 的 xml 配置是:
<int:channel id="input" datatype="com.company.threatanalyzer.core.commons.tuple.LogFileTuple"/>
<int:transformer input-channel="input" output-channel="output">
<beans:bean class="com.company.threatanalyzer.xd.plugin.XdLogParser" />
</int:transformer>
<int:channel id="output"/>
我得到这个异常:
Caused by: org.springframework.messaging.MessageDeliveryException: Channel 'input' expected one of the following datataypes [class com.company.threatanalyzer.core.commons.tuple.LogFileTuple], but received [class com.company.threatanalyzer.core.commons.tuple.LogFileTuple]
at org.springframework.integration.channel.AbstractMessageChannel.convertPayloadIfNecessary(AbstractMessageChannel.java:499) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:426) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:392) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:115) ~[spring-messaging-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:45) ~[spring-messaging-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:105) ~[spring-messaging-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutput(AbstractMessageProducingHandler.java:231) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.handler.AbstractMessageProducingHandler.produceOutput(AbstractMessageProducingHandler.java:154) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutputs(AbstractMessageProducingHandler.java:102) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:105) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:127) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:147) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:120) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:77) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:442) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:392) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:115) ~[spring-messaging-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:45) ~[spring-messaging-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:105) ~[spring-messaging-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.integration.endpoint.MessageProducerSupport.sendMessage(MessageProducerSupport.java:105) ~[spring-integration-core-4.2.5.RELEASE.jar:na]
at org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter.access$400(AmqpInboundChannelAdapter.java:45) ~[spring-integration-amqp-4.2.5.RELEASE.jar:na]
at org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter$1.onMessage(AmqpInboundChannelAdapter.java:93) ~[spring-integration-amqp-4.2.5.RELEASE.jar:na]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:757) ~[spring-rabbit-1.5.4.RELEASE.jar:na]
... 23 common frames omitted
最佳答案
这是一个类加载器问题;每个模块加载它自己的 LogFileTuple 版本。在 Java 中,类的作用域由加载它们的类加载器确定,因此在本例中,它是一个不同的 Class
实例。
您需要将包含该类的 jar 提升到 /xd/lib
,以便由共享类加载器加载它。
关于java - 用于处理器输入的 Spring XD 自定义类类型,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39315824/