CamelContext(wsBlueprintContext) 由于已经是目的地

Question

当我尝试启动我的 osgi 包时，它因错误而失败...

14:06:46,086 | ERROR | l Console Thread | BlueprintCamelContext            | 234 - org.apache.camel.camel-blueprint - 2.17.0.redhat-630187 | Error occurred during starting Camel: CamelContext(wsBlueprintContext) due Already a destination on http://hostDomainName:80/cxf/sentence java.lang.RuntimeException: Already a destination on http://hostDomainName:80/cxf/sentence
at org.apache.cxf.transport.http.DestinationRegistryImpl.addDestination(DestinationRegistryImpl.java:50)

这是蓝图 xml 文件中的代码片段...

<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
       xmlns:camel="http://camel.apache.org/schema/blueprint"
       xmlns:cxf="http://cxf.apache.org/blueprint/core" 
       xmlns:camelcxf="http://camel.apache.org/schema/blueprint/cxf"
       xmlns:jaxws="http://cxf.apache.org/blueprint/jaxws" 
       xmlns:http-conf="http://cxf.apache.org/transports/http/configuration"
       xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.0.0"
       xsi:schemaLocation="
       http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd 
       http://camel.apache.org/schema/blueprint http://camel.apache.org/schema/blueprint/camel-blueprint.xsd 
   http://cxf.apache.org/blueprint/core http://cxf.apache.org/schemas/blueprint/core.xsd
   http://camel.apache.org/schema/blueprint/cxf http://camel.apache.org/schema/blueprint/cxf/camel-cxf.xsd
   http://cxf.apache.org/blueprint/jaxws http://cxf.apache.org/schemas/blueprint/jaxws.xsd
   http://cxf.apache.org/transports/http/configuration http://cxf.apache.org/schemas/configuration/http-conf.xsd 
   http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.0.0 http://aries.apache.org/schemas/blueprint-cm/blueprint-cm-1.0.0.xsd">

<camelcxf:cxfEndpoint id="sentenceEndpoint"
                      loggingFeatureEnabled="true" address="{{sentenceHttpAddress}}"
                      serviceClass="gov.mcjn.it.sentence.ws._interface._1_0.SentenceInterface">
    <camelcxf:features>
        <wsa:addressing xmlns:wsa="http://cxf.apache.org/ws/addressing" />
    </camelcxf:features>
</camelcxf:cxfEndpoint>

<camelcxf:cxfEndpoint id="sentenceResponseEndpoint"
                      loggingFeatureEnabled="true" address="{{sentenceResponseHttpAddress}}"
                      serviceClass="gov.ojp.it.commonresponse._1_0.ws.receivingagency.ResponseInterface">
    <camelcxf:features>
        <wsa:addressing xmlns:wsa="http://cxf.apache.org/ws/addressing" />
    </camelcxf:features>
</camelcxf:cxfEndpoint>

<camelContext trace="true" id="wsBlueprintContext"
              xmlns="http://camel.apache.org/schema/blueprint">
    <route id="cxfSentenceService">
        <from uri="cxf:bean:sentenceEndpoint" />
        <removeHeaders pattern="Expect" />
        <inOnly uri="activemq:incomingSentence?jmsMessageType=Object" />
        <bean ref="sentenceResponseProcessor" />
    </route>
    <route id="cxfSentenceResponseService">
        <from uri="cxf:bean:sentenceResponseEndpoint" />
        <removeHeaders pattern="Expect" />
        <inOnly
            uri="activemq:incomingSentenceResponse?jmsMessageType=Object" />
        <process ref="sentenceAsyncResponseProcessor" />
    </route>

此片段来自我的属性文件...

sentenceResponseHttpAddress=http://hostDomainName/cxf/sentence/response
sentenceHttpAddress=http://hostDomainName/cxf/sentence

CXF 似乎认为我两次使用同一个端点，但我不同意。这些端点在 Fusesource ESB v1 中运行良好。我正在尝试将它们迁移到 JBoss Fuse 6.3。为了简化测试和部署，我首先部署到一个独立的karaf容器，所以Fabric（fabric8）还没有应用。

更新：我尝试更改 <camelcxf:cxfEndpoint> to <jaxws:client> 但这导致了不同的错误。在那个新错误中，camel 期待 CxfEndpoint 类型，但却得到了一个 Proxy 对象。我真的不想更改端点来解决此问题。我确定我还没有找到使用相同端点的两个地方。仍在寻找那个。

更新：我已经确认 URI 地址没有被使用两次。现在看来我的整个 <camelContext> 被加载了不止一次，即使我只在存储库中配置了一个 osgi 功能来使用 osgi 包。

Answer 1

我通过在 camelContext 上放置一个唯一 ID 并查看该 ID 的日志来发现问题。较早的错误 [java.nio.channels.UnresolvedAddressException] 导致 camel 上下文关闭然后重新启动。在重新启动期间，它会尝试重新加载，而之前的加载仍在内存中。

故事的寓意：在您的 cfg 文件中获取正确的属性值，因为无法在 DNS 中解析的主机名将导致您的 camel 上下文关闭，然后重新启动并显示误导性错误消息。

更好的是，只使用相对端点而不是完全限定的端点。

CamelContext(wsBlueprintContext) 由于已经是目的地

CamelContext(wsBlueprintContext) due Already a destination on

java

cxf

apache-camel

apache-karaf

blueprint-osgi