Question

我有一个Camel路由和一个使用when-choice语句的基于内容的路由。我正在使用带有正则表达式的JSONPath来比较传入数据中的一个名为topic的元素，然后根据主题确定将其发送到哪个端点。

问题在于，无论topic元素中的值是否与正则表达式匹配，骆驼总是执行第一选择。我还尝试过更改选择的顺序，无论它是什么，它始终会执行第一个选择。我在此JsonPath Evaluator中手动检查了正则表达式，并在那里得到了正确的结果。

很奇怪，我尝试使用Camel的简单语言来表达一个虚拟条件，并且在这种情况下，评估可以正确地表达文字，消息并不总是传递给首选。这使我认为我的正则表达式或Camel处理它们的方式有问题。

这是相关的骆驼路线：

<route id="receivePosition">
  <from
    uri="idsserver://0.0.0.0:9292/?sslContextParameters=#serverSslContext&amp;attestation=1"/>
  <convertBodyTo type="java.lang.String"/>
  <log message="Received message ${body} with headers ${headers}"/>
  <choice>
      <when>
        <jsonpath>[?(@.topic =~ /forklift\/.*\/position/i)]</jsonpath>
        <log message="Routing message to forkliftPosition"/>
        <to uri="forkliftPosition"/>
      </when>
      <when>
        <jsonpath>[?(@.topic =~ /forklift\/.*\/acceleration/i)]</jsonpath>
        <log message="Routing message to forkliftAcceleration"/>
        <to uri="forkliftAcceleration"/>
      </when>
      <when>
        <jsonpath>[?(@.topic =~ /forklift\/.*\/impact/i)]</jsonpath>
        <log message="Routing message to forkliftImpact"/>
        <to uri="forkliftImpact"/>
      </when>
      <otherwise>
        <log message="Routing message to geoAcceleration"/>
        <to uri="geoAcceleration"/>
      </otherwise>
  </choice>
</route>

这是我要发送的邮件的一些示例：

{"topic": "forklift/1/position", "message": {"x":"6.8052026806455945","y":"6.5546865012006075","z":"46.69778056906287"}}
{"topic": "forklift/1/impact", "message": {"date":{"nano":6541000,"epochSecond":1600761505},"impact":true}}
{"topic": "geolocation/1/acceleration", "message": {"x":"42.44249630338786","y":"13.492870450326972","z":"24.95959413495642"}}
{"topic": "forklift/1/position", "message": {"x":"41.86691902528943","y":"31.934653476220436","z":"47.43607241265882"}}
{"topic": "forklift/1/position", "message": {"x":"22.218576399047368","y":"17.14644029124392","z":"43.390649851176235"}}
{"topic": "forklift/1/position", "message": {"x":"46.268974377584456","y":"37.28146451988936","z":"20.679591417503058"}}
{"topic": "geolocation/1/acceleration", "message": {"x":"27.54178220678984","y":"40.329306970979886","z":"15.224365830285224"}}

骆驼路线何时选择总是执行首选

0 个答案: