使用攔截器將緩存方面應用於駱駝路由

Question

我想通過攔截 路由中的每個傳入交換，使用InterceptFrom功能將緩存方面應用於Apache Camel路由。

我能夠成功地從單獨的xml文件加載RestDefinitions和RouteDefinitions。

以類似的方式我想從單獨的XML文件加載截取定義。

我目前在我的xml（Intercept.xml）文件中有以下內容，我用它來加載InterceptFrom定義如下。我現在只記錄他們。我將添加邏輯來最終檢查緩存命中/未命中。

<interceptFrom> 
     <log message="Intercepted Route" /> 
    </interceptFrom> 

我加載它們使用下面的方法，

List<InterceptFromDefinition> intDefns=getInterceptDefinitions("Intercept.xml"); 

我也將它們設置爲路由。

routes.setInterceptFroms(intDefns); 

我得到如下錯誤，

2016-10-08 22:13:19.711 ERROR 6004 --- [   main] com.demo.composite.util.CamelUtil  : Exception reading configuration files:javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:"interceptFrom"). Expected elements are <{http://camel.apache.org/schema/spring}aggregate>,<{http://camel.apache.org/schema/spring}aop>,<{http://camel.apache.org/schema/spring}avro>,<{http://camel.apache.org/schema/spring}barcode>,<{http://camel.apache.org/schema/spring}base64>,<{http://camel.apache.org/schema/spring}batch-config>,<{http://camel.apache.org/schema/spring}bean>,<{http://camel.apache.org/schema/spring}beanio>,<{http://camel.apache.org/schema/spring}bindy>,<{http://camel.apache.org/schema/spring}boon>,<{http://camel.apache.org/schema/spring}castor>,<{http://camel.apache.org/schema/spring}choice>,<{http://camel.apache.org/schema/spring}circuitBreaker>,<{http://camel.apache.org/schema/spring}constant>,<{http://camel.apache.org/schema/spring}contextScan>,<{http://camel.apache.org/schema/spring}convertBodyTo>,<{http://camel.apache.org/schema/spring}crypto>,<{http://camel.apache.org/schema/spring}csv>,<{http://camel.apache.org/schema/spring}customDataFormat>,<{http://camel.apache.org/schema/spring}customLoadBalancer>,<{http://camel.apache.org/schema/spring}dataFormats>,<{http://camel.apache.org/schema/spring}delay>,<{http://camel.apache.org/schema/spring}delete>,<{http://camel.apache.org/schema/spring}description>,<{http://camel.apache.org/schema/spring}doCatch>,<{http://camel.apache.org/schema/spring}doFinally>,<{http://camel.apache.org/schema/spring}doTry>,<{http://camel.apache.org/schema/spring}dynamicRouter>,<{http://camel.apache.org/schema/spring}el>,<{http://camel.apache.org/schema/spring}enrich>,<{http://camel.apache.org/schema/spring}exchangeProperty>,<{http://camel.apache.org/schema/spring}expression>,<{http://camel.apache.org/schema/spring}expressionDefinition>,<{http://camel.apache.org/schema/spring}failover>,<{http://camel.apache.org/schema/spring}filter>,<{http://camel.apache.org/schema/spring}flatpack>,<{http://camel.apache.org/schema/spring}from>,<{http://camel.apache.org/schema/spring}get>,<{http://camel.apache.org/schema/spring}groovy>,<{http://camel.apache.org/schema/spring}gzip>,<{http://camel.apache.org/schema/spring}head>,<{http://camel.apache.org/schema/spring}header>,<{http://camel.apache.org/schema/spring}hessian>,<{http://camel.apache.org/schema/spring}hl7>,<{http://camel.apache.org/schema/spring}ical>,<{http://camel.apache.org/schema/spring}idempotentConsumer>,<{http://camel.apache.org/schema/spring}inOnly>,<{http://camel.apache.org/schema/spring}inOut>,<{http://camel.apache.org/schema/spring}intercept>,<{http://camel.apache.org/schema/spring}interceptFrom>,<{http://camel.apache.org/schema/spring}interceptSendToEndpoint>,<{http://camel.apache.org/schema/spring}jacksonxml>,<{http://camel.apache.org/schema/spring}javaScript>,<{http://camel.apache.org/schema/spring}jaxb>,<{http://camel.apache.org/schema/spring}jibx>,<{http://camel.apache.org/schema/spring}json>,<{http://camel.apache.org/schema/spring}jsonpath>,<{http://camel.apache.org/schema/spring}jxpath>,<{http://camel.apache.org/schema/spring}language>,<{http://camel.apache.org/schema/spring}loadBalance>,<{http://camel.apache.org/schema/spring}log>,<{http://camel.apache.org/schema/spring}loop>,<{http://camel.apache.org/schema/spring}lzf>,<{http://camel.apache.org/schema/spring}marshal>,<{http://camel.apache.org/schema/spring}method>,<{http://camel.apache.org/schema/spring}mime-multipart>,<{http://camel.apache.org/schema/spring}multicast>,<{http://camel.apache.org/schema/spring}mvel>,<{http://camel.apache.org/schema/spring}ognl>,<{http://camel.apache.org/schema/spring}onCompletion>,<{http://camel.apache.org/schema/spring}onException>,<{http://camel.apache.org/schema/spring}optimisticLockRetryPolicy>,<{http://camel.apache.org/schema/spring}options>,<{http://camel.apache.org/schema/spring}otherwise>,<{http://camel.apache.org/schema/spring}packageScan>,<{http://camel.apache.org/schema/spring}param>,<{http://camel.apache.org/schema/spring}patch>,<{http://camel.apache.org/schema/spring}pgp>,<{http://camel.apache.org/schema/spring}php>,<{http://camel.apache.org/schema/spring}pipeline>,<{http://camel.apache.org/schema/spring}policy>,<{http://camel.apache.org/schema/spring}pollEnrich>,<{http://camel.apache.org/schema/spring}post>,<{http://camel.apache.org/schema/spring}process>,<{http://camel.apache.org/schema/spring}properties>,<{http://camel.apache.org/schema/spring}property>,<{http://camel.apache.org/schema/spring}protobuf>,<{http://camel.apache.org/schema/spring}put>,<{http://camel.apache.org/schema/spring}python>,<{http://camel.apache.org/schema/spring}random>,<{http://camel.apache.org/schema/spring}recipientList>,<{http://camel.apache.org/schema/spring}redeliveryPolicy>,<{http://camel.apache.org/schema/spring}ref>,<{http://camel.apache.org/schema/spring}removeHeader>,<{http://camel.apache.org/schema/spring}removeHeaders>,<{http://camel.apache.org/schema/spring}removeProperties>,<{http://camel.apache.org/schema/spring}removeProperty>,<{http://camel.apache.org/schema/spring}resequence>,<{http://camel.apache.org/schema/spring}responseHeader>,<{http://camel.apache.org/schema/spring}responseMessage>,<{http://camel.apache.org/schema/spring}rest>,<{http://camel.apache.org/schema/spring}restBinding>,<{http://camel.apache.org/schema/spring}restConfiguration>,<{http://camel.apache.org/schema/spring}restContextRef>,<{http://camel.apache.org/schema/spring}restProperty>,<{http://camel.apache.org/schema/spring}rests>,<{http://camel.apache.org/schema/spring}rollback>,<{http://camel.apache.org/schema/spring}roundRobin>,<{http://camel.apache.org/schema/spring}route>,<{http://camel.apache.org/schema/spring}routeBuilder>,<{http://camel.apache.org/schema/spring}routeContextRef>,<{http://camel.apache.org/schema/spring}routes>,<{http://camel.apache.org/schema/spring}routingSlip>,<{http://camel.apache.org/schema/spring}rss>,<{http://camel.apache.org/schema/spring}ruby>,<{http://camel.apache.org/schema/spring}sample>,<{http://camel.apache.org/schema/spring}script>,<{http://camel.apache.org/schema/spring}secureXML>,<{http://camel.apache.org/schema/spring}serialization>,<{http://camel.apache.org/schema/spring}setBody>,<{http://camel.apache.org/schema/spring}setExchangePattern>,<{http://camel.apache.org/schema/spring}setFaultBody>,<{http://camel.apache.org/schema/spring}setHeader>,<{http://camel.apache.org/schema/spring}setOutHeader>,<{http://camel.apache.org/schema/spring}setProperty>,<{http://camel.apache.org/schema/spring}simple>,<{http://camel.apache.org/schema/spring}soapjaxb>,<{http://camel.apache.org/schema/spring}sort>,<{http://camel.apache.org/schema/spring}spel>,<{http://camel.apache.org/schema/spring}split>,<{http://camel.apache.org/schema/spring}sql>,<{http://camel.apache.org/schema/spring}sticky>,<{http://camel.apache.org/schema/spring}stop>,<{http://camel.apache.org/schema/spring}stream-config>,<{http://camel.apache.org/schema/spring}string>,<{http://camel.apache.org/schema/spring}syslog>,<{http://camel.apache.org/schema/spring}tarfile>,<{http://camel.apache.org/schema/spring}terser>,<{http://camel.apache.org/schema/spring}threadPoolProfile>,<{http://camel.apache.org/schema/spring}threads>,<{http://camel.apache.org/schema/spring}throttle>,<{http://camel.apache.org/schema/spring}throwException>,<{http://camel.apache.org/schema/spring}tidyMarkup>,<{http://camel.apache.org/schema/spring}to>,<{http://camel.apache.org/schema/spring}toD>,<{http://camel.apache.org/schema/spring}tokenize>,<{http://camel.apache.org/schema/spring}topic>,<{http://camel.apache.org/schema/spring}transacted>,<{http://camel.apache.org/schema/spring}transform>,<{http://camel.apache.org/schema/spring}univocity-csv>,<{http://camel.apache.org/schema/spring}univocity-fixed>,<{http://camel.apache.org/schema/spring}univocity-header>,<{http://camel.apache.org/schema/spring}univocity-tsv>,<{http://camel.apache.org/schema/spring}unmarshal>,<{http://camel.apache.org/schema/spring}validate>,<{http://camel.apache.org/schema/spring}verb>,<{http://camel.apache.org/schema/spring}vtdxml>,<{http://camel.apache.org/schema/spring}weighted>,<{http://camel.apache.org/schema/spring}when>,<{http://camel.apache.org/schema/spring}wireTap>,<{http://camel.apache.org/schema/spring}xmlBeans>,<{http://camel.apache.org/schema/spring}xmljson>,<{http://camel.apache.org/schema/spring}xmlrpc>,<{http://camel.apache.org/schema/spring}xpath>,<{http://camel.apache.org/schema/spring}xquery>,<{http://camel.apache.org/schema/spring}xstream>,<{http://camel.apache.org/schema/spring}xtokenize>,<{http://camel.apache.org/schema/spring}yaml>,<{http://camel.apache.org/schema/spring}zip>,<{http://camel.apache.org/schema/spring}zipFile> 
javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:"interceptFrom"). Expected elements are <{http://camel.apache.org/schema/spring}aggregate>,<{http://camel.apache.org/schema/spring}aop>,<{http://camel.apache.org/schema/spring}avro>,<{http://camel.apache.org/schema/spring}barcode>,<{http://camel.apache.org/schema/spring}base64>,<{http://camel.apache.org/schema/spring}batch-config>,<{http://camel.apache.org/schema/spring}bean>,<{http://camel.apache.org/schema/spring}beanio>,<{http://camel.apache.org/schema/spring}bindy>,<{http://camel.apache.org/schema/spring}boon>,<{http://camel.apache.org/schema/spring}castor>,<{http://camel.apache.org/schema/spring}choice>,<{http://camel.apache.org/schema/spring}circuitBreaker>,<{http://camel.apache.org/schema/spring}constant>,<{http://camel.apache.org/schema/spring}contextScan>,<{http://camel.apache.org/schema/spring}convertBodyTo>,<{http://camel.apache.org/schema/spring}crypto>,<{http://camel.apache.org/schema/spring}csv>,<{http://camel.apache.org/schema/spring}customDataFormat>,<{http://camel.apache.org/schema/spring}customLoadBalancer>,<{http://camel.apache.org/schema/spring}dataFormats>,<{http://camel.apache.org/schema/spring}delay>,<{http://camel.apache.org/schema/spring}delete>,<{http://camel.apache.org/schema/spring}description>,<{http://camel.apache.org/schema/spring}doCatch>,<{http://camel.apache.org/schema/spring}doFinally>,<{http://camel.apache.org/schema/spring}doTry>,<{http://camel.apache.org/schema/spring}dynamicRouter>,<{http://camel.apache.org/schema/spring}el>,<{http://camel.apache.org/schema/spring}enrich>,<{http://camel.apache.org/schema/spring}exchangeProperty>,<{http://camel.apache.org/schema/spring}expression>,<{http://camel.apache.org/schema/spring}expressionDefinition>,<{http://camel.apache.org/schema/spring}failover>,<{http://camel.apache.org/schema/spring}filter>,<{http://camel.apache.org/schema/spring}flatpack>,<{http://camel.apache.org/schema/spring}from>,<{http://camel.apache.org/schema/spring}get>,<{http://camel.apache.org/schema/spring}groovy>,<{http://camel.apache.org/schema/spring}gzip>,<{http://camel.apache.org/schema/spring}head>,<{http://camel.apache.org/schema/spring}header>,<{http://camel.apache.org/schema/spring}hessian>,<{http://camel.apache.org/schema/spring}hl7>,<{http://camel.apache.org/schema/spring}ical>,<{http://camel.apache.org/schema/spring}idempotentConsumer>,<{http://camel.apache.org/schema/spring}inOnly>,<{http://camel.apache.org/schema/spring}inOut>,<{http://camel.apache.org/schema/spring}intercept>,<{http://camel.apache.org/schema/spring}interceptFrom>,<{http://camel.apache.org/schema/spring}interceptSendToEndpoint>,<{http://camel.apache.org/schema/spring}jacksonxml>,<{http://camel.apache.org/schema/spring}javaScript>,<{http://camel.apache.org/schema/spring}jaxb>,<{http://camel.apache.org/schema/spring}jibx>,<{http://camel.apache.org/schema/spring}json>,<{http://camel.apache.org/schema/spring}jsonpath>,<{http://camel.apache.org/schema/spring}jxpath>,<{http://camel.apache.org/schema/spring}language>,<{http://camel.apache.org/schema/spring}loadBalance>,<{http://camel.apache.org/schema/spring}log>,<{http://camel.apache.org/schema/spring}loop>,<{http://camel.apache.org/schema/spring}lzf>,<{http://camel.apache.org/schema/spring}marshal>,<{http://camel.apache.org/schema/spring}method>,<{http://camel.apache.org/schema/spring}mime-multipart>,<{http://camel.apache.org/schema/spring}multicast>,<{http://camel.apache.org/schema/spring}mvel>,<{http://camel.apache.org/schema/spring}ognl>,<{http://camel.apache.org/schema/spring}onCompletion>,<{http://camel.apache.org/schema/spring}onException>,<{http://camel.apache.org/schema/spring}optimisticLockRetryPolicy>,<{http://camel.apache.org/schema/spring}options>,<{http://camel.apache.org/schema/spring}otherwise>,<{http://camel.apache.org/schema/spring}packageScan>,<{http://camel.apache.org/schema/spring}param>,<{http://camel.apache.org/schema/spring}patch>,<{http://camel.apache.org/schema/spring}pgp>,<{http://camel.apache.org/schema/spring}php>,<{http://camel.apache.org/schema/spring}pipeline>,<{http://camel.apache.org/schema/spring}policy>,<{http://camel.apache.org/schema/spring}pollEnrich>,<{http://camel.apache.org/schema/spring}post>,<{http://camel.apache.org/schema/spring}process>,<{http://camel.apache.org/schema/spring}properties>,<{http://camel.apache.org/schema/spring}property>,<{http://camel.apache.org/schema/spring}protobuf>,<{http://camel.apache.org/schema/spring}put>,<{http://camel.apache.org/schema/spring}python>,<{http://camel.apache.org/schema/spring}random>,<{http://camel.apache.org/schema/spring}recipientList>,<{http://camel.apache.org/schema/spring}redeliveryPolicy>,<{http://camel.apache.org/schema/spring}ref>,<{http://camel.apache.org/schema/spring}removeHeader>,<{http://camel.apache.org/schema/spring}removeHeaders>,<{http://camel.apache.org/schema/spring}removeProperties>,<{http://camel.apache.org/schema/spring}removeProperty>,<{http://camel.apache.org/schema/spring}resequence>,<{http://camel.apache.org/schema/spring}responseHeader>,<{http://camel.apache.org/schema/spring}responseMessage>,<{http://camel.apache.org/schema/spring}rest>,<{http://camel.apache.org/schema/spring}restBinding>,<{http://camel.apache.org/schema/spring}restConfiguration>,<{http://camel.apache.org/schema/spring}restContextRef>,<{http://camel.apache.org/schema/spring}restProperty>,<{http://camel.apache.org/schema/spring}rests>,<{http://camel.apache.org/schema/spring}rollback>,<{http://camel.apache.org/schema/spring}roundRobin>,<{http://camel.apache.org/schema/spring}route>,<{http://camel.apache.org/schema/spring}routeBuilder>,<{http://camel.apache.org/schema/spring}routeContextRef>,<{http://camel.apache.org/schema/spring}routes>,<{http://camel.apache.org/schema/spring}routingSlip>,<{http://camel.apache.org/schema/spring}rss>,<{http://camel.apache.org/schema/spring}ruby>,<{http://camel.apache.org/schema/spring}sample>,<{http://camel.apache.org/schema/spring}script>,<{http://camel.apache.org/schema/spring}secureXML>,<{http://camel.apache.org/schema/spring}serialization>,<{http://camel.apache.org/schema/spring}setBody>,<{http://camel.apache.org/schema/spring}setExchangePattern>,<{http://camel.apache.org/schema/spring}setFaultBody>,<{http://camel.apache.org/schema/spring}setHeader>,<{http://camel.apache.org/schema/spring}setOutHeader>,<{http://camel.apache.org/schema/spring}setProperty>,<{http://camel.apache.org/schema/spring}simple>,<{http://camel.apache.org/schema/spring}soapjaxb>,<{http://camel.apache.org/schema/spring}sort>,<{http://camel.apache.org/schema/spring}spel>,<{http://camel.apache.org/schema/spring}split>,<{http://camel.apache.org/schema/spring}sql>,<{http://camel.apache.org/schema/spring}sticky>,<{http://camel.apache.org/schema/spring}stop>,<{http://camel.apache.org/schema/spring}stream-config>,<{http://camel.apache.org/schema/spring}string>,<{http://camel.apache.org/schema/spring}syslog>,<{http://camel.apache.org/schema/spring}tarfile>,<{http://camel.apache.org/schema/spring}terser>,<{http://camel.apache.org/schema/spring}threadPoolProfile>,<{http://camel.apache.org/schema/spring}threads>,<{http://camel.apache.org/schema/spring}throttle>,<{http://camel.apache.org/schema/spring}throwException>,<{http://camel.apache.org/schema/spring}tidyMarkup>,<{http://camel.apache.org/schema/spring}to>,<{http://camel.apache.org/schema/spring}toD>,<{http://camel.apache.org/schema/spring}tokenize>,<{http://camel.apache.org/schema/spring}topic>,<{http://camel.apache.org/schema/spring}transacted>,<{http://camel.apache.org/schema/spring}transform>,<{http://camel.apache.org/schema/spring}univocity-csv>,<{http://camel.apache.org/schema/spring}univocity-fixed>,<{http://camel.apache.org/schema/spring}univocity-header>,<{http://camel.apache.org/schema/spring}univocity-tsv>,<{http://camel.apache.org/schema/spring}unmarshal>,<{http://camel.apache.org/schema/spring}validate>,<{http://camel.apache.org/schema/spring}verb>,<{http://camel.apache.org/schema/spring}vtdxml>,<{http://camel.apache.org/schema/spring}weighted>,<{http://camel.apache.org/schema/spring}when>,<{http://camel.apache.org/schema/spring}wireTap>,<{http://camel.apache.org/schema/spring}xmlBeans>,<{http://camel.apache.org/schema/spring}xmljson>,<{http://camel.apache.org/schema/spring}xmlrpc>,<{http://camel.apache.org/schema/spring}xpath>,<{http://camel.apache.org/schema/spring}xquery>,<{http://camel.apache.org/schema/spring}xstream>,<{http://camel.apache.org/schema/spring}xtokenize>,<{http://camel.apache.org/schema/spring}yaml>,<{http://camel.apache.org/schema/spring}zip>,<{http://camel.apache.org/schema/spring}zipFile> 
    at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext.handleEvent(UnmarshallingContext.java:740) 
    at com.sun.xml.bind.v2.runtime.unmarshaller.Loader.reportError(Loader.java:262) 

也許我需要使用類似於我包了休息和RouteDefinitions方式的元素來包裝interceptFrom。但是，不知道如何。 我不確定我是否以正確的方式進行操作。 可以以某種方式幫助我。

此外，我看到有一個可以設置爲camelcontext的InterceptStrategy。

有沒有一種方法可以使用它來執行AOP，例如通過應用緩存而不是InterceptFrom來處理我的路由。

另外，我的駱駝應用程序基於Spring Boot，所以Spring Boot中有什麼功能可以用來攔截路由調用。

我已經添加了我創建的示例項目，用於在使用XML文件的此回購中加載我的路線和apiroutes。同樣，我想要使用攔截器來應用跨緩存的緩存關注，以便它們不會與路由邏輯混合。我正在尋找一種方法來使用攔截來自駱駝功能，這樣我就可以攔截每條消息到一條路線並相應地處理它們。我不知道如何加載攔截器或如何讓它們與路線相關聯。

https://github.com/sri420/compositerepo/tree/master/CompositeApplication

我已經去掉目前，我已經加入到加載，因爲命名錯誤的攔截器的代碼。有一次，我得到了解決方案的正確方法，我將相應地添加相同的方法。

Answer 1

您可以提供完整的Intercept.xml嗎？看起來你的Intercept.xml的xml文件有錯誤的命名空間，就像

<camelContext xmlns="http://camel.apache.org/schema/spring"> 
    <!-- intercept incoming messages and route them to the mock:middle1 endpoint 
     before we proceed and continue routing from the point of interceptions, that 
     is mock:end will be the next target --> 
    <interceptFrom> 
     <to uri="mock:middle1"/> 
    </interceptFrom> 

    <!-- here we have a very simple route --> 
    <route> 
     <from uri="direct:start"/> 
     <to uri="mock:end"/> 
    </route> 
</camelContext>