启动 Apache Karaf 时包无效

Question

当我开始使用 Karaf 时，我有一种奇怪的行为。

我的 JAR 包包含一个简单的 camel spring xml 路由，它将传入的 xml 片段转换为带有 xslt 的文本。我使用 BridgePropertyPlaceholderConfigurer 将我的属性外部化到 {karaf.base}/etc/karaf-invalid-bundle.cfg。

为了说明我的帖子，我创建了一个 github 存储库https://github.com/johanlelan/Karaf-invalid-bundle-example。

有时，我的包由于奇怪的原因无法启动：

karaf@root> log:display-exception
org.apache.camel.RuntimeCamelException: org.apache.camel.FailedToCreateRouteException:     Failed to create route error.sample at: >>> To[xslt:xslt/template.xslt] <
<< in route: Route(error.sample)[[From[ref:incoming.endpoint]] -> [SetHea... because of     java.lang.IllegalStateException: Invalid BundleContext.
        at     org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1352)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:120)[121:org.apache.camel.camel-spring:2.12.2]
        at org.apache.camel.spring.CamelContextFactoryBean.onApplicationEvent(CamelContextFactoryBean.java:301)[121:org.apache.camel.camel-spring:2.12.2]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:96)[78:org.springframework.context:3.2.4.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:334)[78:org.springframework.context:3.2.4.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:948)[78:org.springframework.context:3.2.4.RELEASE]
        at org.springframework.osgi.context.support.AbstractOsgiBundleApplicationContext.finishRefresh(AbstractOsgiBundleApplicationContext.java:235)[117:org.springframework.osgi.core:1.2.1]
        at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext$4.run(AbstractDelegatedExecutionApplicationContext.java:358)[117:org.springframework.osgi.core:1.2.1]
        at org.springframework.osgi.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)[117:org.springframework.osgi.core:1.2.1]
        at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.completeRefresh(AbstractDelegatedExecutionApplicationContext.java:320)[117:org.springframework.osgi.core:1.2.1]
        at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor$CompleteRefreshTask.run(DependencyWaiterApplicationContextExecutor.java:132)[118:org.springframework.osgi.extender:1.2.1]
        at java.lang.Thread.run(Thread.java:662)[:1.6.0_45]
Caused by: org.apache.camel.FailedToCreateRouteException: Failed to create route error.sample at: >>> To[xslt:xslt/template.xslt] <<< in route: Route(error.sample)[[From[ref:incoming.endpoint]] -> [SetHea... because of java.lang.IllegalStateException: Invalid BundleContext.
        at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:912)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:177)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:770)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:1914)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1670)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1544)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.spring.SpringCamelContext.doStart(SpringCamelContext.java:179)[121:org.apache.camel.camel-spring:2.12.2]
        at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1512)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.spring.SpringCamelContext.maybeStart(SpringCamelContext.java:228)[121:org.apache.camel.camel-spring:2.12.2]
        at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:118)[121:org.apache.camel.camel-spring:2.12.2]
        ... 10 more
Caused by: org.apache.camel.RuntimeCamelException: java.lang.IllegalStateException: Invalid BundleContext.
        at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1352)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.core.osgi.OsgiServiceRegistry.findByTypeWithName(OsgiServiceRegistry.java:110)[121:org.apache.camel.camel-spring:2.12.2]
        at org.apache.camel.impl.CompositeRegistry.findByTypeWithName(CompositeRegistry.java:87)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.impl.PropertyPlaceholderDelegateRegistry.findByTypeWithName(PropertyPlaceholderDelegateRegistry.java:70)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.processor.interceptor.DefaultChannel.getOrCreateBacklogTracer(DefaultChannel.java:339)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.processor.interceptor.DefaultChannel.initChannel(DefaultChannel.java:202)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.model.ProcessorDefinition.wrapChannel(ProcessorDefinition.java:269)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.model.ProcessorDefinition.wrapProcessor(ProcessorDefinition.java:251)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.model.ProcessorDefinition.makeProcessor(ProcessorDefinition.java:507)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.model.ProcessorDefinition.addRoutes(ProcessorDefinition.java:213)[113:org.apache.camel.camel-core:2.12.2]
        at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:909)[113:org.apache.camel.camel-core:2.12.2]
        ... 20 more
Caused by: java.lang.IllegalStateException: Invalid BundleContext.
        at org.apache.felix.framework.BundleContextImpl.checkValidity(BundleContextImpl.java:514)[org.apache.felix.framework-4.0.3.jar:]
        at org.apache.felix.framework.BundleContextImpl.getAllServiceReferences(BundleContextImpl.java:411)[org.apache.felix.framework-4.0.3.jar:]
        at org.apache.camel.core.osgi.OsgiServiceRegistry.findByTypeWithName(OsgiServiceRegistry.java:94)[121:org.apache.camel.camel-spring:2.12.2]
    ... 29 more
karaf@root>

我认为这个错误与我的属性或我的 BundleActivator 类有关。 有什么想法可以阻止这种行为吗？

约翰

Answer 1

不确定您在春季遇到的具体问题。我很久以前就停止在 OSGi 上使用 spring。

一个更简单的解决方案是只使用蓝图而不是弹簧。然后，您可以使用 blueprint 的 config admin 支持附加到 etc 中的配置文件。BLueprint 在 OSGi 中比 spring dm 运行更流畅。

您还拥有蓝图配置的配置管理属性自动作为骆驼属性使用的优势。