【问题标题】:Apache Camel on Karaf with Spring DSL + OSGi带有 Spring DSL + OSGi 的 Karaf 上的 Apache Camel
【发布时间】:2017-07-25 07:39:15
【问题描述】:

我是 OSGI 世界的新手。

版本: 卡拉夫:4.1.0 骆驼:2.18.2 Spring:4.3.5_RELEASE_1(Apache Service Mix Bundles)

参考:Camel-UserForum-on same question

我花了很多时间(甚至几天)用 osgi 容器搜索/理解骆驼弹簧。我没有找到适合像我这样的初学者的好文章,它适用于某些设置或 github..etc。

我们的骆驼弹簧应用程序运行良好。现在我们要迁移到像 Karaf 这样的 OSGI 环境。 我们正在做一些迁移到 OSGI 的工作,我们遇到了一些严重的问题,我们能够解决其中几个问题,但最终会遇到以下问题:

  1. 我不知道在哪里放置骆驼弹簧 xml 上下文和路由文件(以前在 NON-OSGi 的类路径中)。所以它没有加载上下文获取文件未找到。

  2. 如果我把它放在下面,我知道它可能是错误的方式

    ClassPathXmlApplicationContext appContext = new ClassPathXmlApplicationContext( 新字符串 [] {"文件:app-camel-spring.xml" }); 例外: org.springframework.beans.factory.parsing.BeanDefinitionParsingException:配置问题:找不到 XML 模式命名空间的 Spring NamespaceHandler [http://camel.apache.org/schema/spring] 违规资源:URL [file:app-camel-spring.xml]

即使使用 Spring DM 也不起作用

谢谢,

更新 1 1. 在论坛要求我查看 GEMINI Blueprint(GB) 之后,我现在正在与 GB 进行检查。但我仍然遇到与 JAXB 错误相同的错误。

我现在正在使用: 菲利克斯:

  runtimelib group: 'org.apache.felix', name: 'org.apache.felix.gogo.command', version: '1+'
  runtimelib group: 'org.apache.felix', name: 'org.apache.felix.gogo.runtime', version: '1+'
  runtimelib group: 'org.apache.felix', name: 'org.apache.felix.gogo.shell', version: '1+'
  runtimelib group: 'org.apache.felix', name: 'org.apache.felix.bundlerepository', version: '2+'
  runtimelib group: 'org.apache.felix', name: 'org.apache.felix.fileinstall', version: '3+'
  runtimelib group: 'org.apache.felix', name: 'org.apache.felix.scr.annotations', version: '1.12.0'

捆绑列表:

  lb
  START LEVEL 1
     ID|State      |Level|Name
      0|Active     |    0|System Bundle (5.6.2)|5.6.2
      1|Active     |    1|Apache Felix Bundle Repository (2.0.8)|2.0.8
      2|Active     |    1|Apache Felix File Install (3.5.8)|3.5.8
      3|Active     |    1|Apache Felix Gogo Command (1.0.2)|1.0.2
      4|Active     |    1|Apache Felix Gogo Runtime (1.0.2)|1.0.2
      5|Active     |    1|Apache Felix Gogo Shell (1.0.0)|1.0.0
      6|Active     |    1|file:/E:/Codes/GIT/Repos/Experiments/osgi/felix/bundle/org.apache.felix.scr.annotations-1.12.0.jar (0.0.0)|0.0.0
      7|Active     |    1|Apache MINA Core (2.0.14)|2.0.14
      8|Active     |    1|Apache ServiceMix :: Bundles :: spring-context (4.3.1.RELEASE_1)|4.3.1.RELEASE_1
      9|Active     |    1|Logback Core Module (1.1.1)|1.1.1
     10|Active     |    1|slf4j-api (1.7.21)|1.7.21
     11|Active     |    1|camel-mina2 (2.18.0)|2.18.0
     12|Active     |    1|osgi_testing.test_cons (0.0.4.1488767989530)|0.0.4.1488767989530
     13|Active     |    1|Logback Classic Module (1.1.1)|1.1.1
     14|Active     |    1|Old JAXB Runtime (2.2.11)|2.2.11
     15|Active     |    1|Apache Log4j (1.2.17)|1.2.17
     16|Active     |    1|gemini-blueprint-core (2.0.9.BUILD-atlassian-m003)|2.0.9.BUILD-atlassian-m003
     17|Installed  |    1|Apache ServiceMix :: Bundles :: spring-context-support (4.3.1.RELEASE_1)|4.3.1.RELEASE_1
     18|Active     |    1|camel-core (2.18.0)|2.18.0
     19|Active     |    1|Apache ServiceMix :: Bundles :: aopalliance (1.0.0.6)|1.0.0.6
     20|Active     |    1|Apache ServiceMix :: Bundles :: spring-tx (4.3.1.RELEASE_1)|4.3.1.RELEASE_1
     21|Active     |    1|Apache ServiceMix :: Bundles :: spring-core (4.3.1.RELEASE_1)|4.3.1.RELEASE_1
     22|Active     |    1|gemini-blueprint-extender (2.0.9.BUILD-atlassian-m003)|2.0.9.BUILD-atlassian-m003
     23|Active     |    1|Apache ServiceMix :: Bundles :: spring-beans (4.3.1.RELEASE_1)|4.3.1.RELEASE_1
     24|Active     |    1|osgi_testing.test_impl2 (0.0.1.1488767989534)|0.0.1.1488767989534
     25|Active     |    1|camel-spring (2.18.0)|2.18.0
     26|Active     |    1|Apache Commons Logging (1.2.0)|1.2.0
     27|Active     |    1|test_api (0.0.2.1488767989527)|0.0.2.1488767989527
     28|Active     |    1|Apache Commons IO (2.5.0)|2.5.0
     29|Active     |    1|Old JAXB Core (2.2.11)|2.2.11
     30|Active     |    1|osgi_testing.test_impl3 (0.0.1.1488767989536)|0.0.1.1488767989536
     31|Active     |    1|Apache ServiceMix :: Bundles :: spring-expression (4.3.1.RELEASE_1)|4.3.1.RELEASE_1
     32|Active     |    1|Apache ServiceMix :: Bundles :: spring-aop (4.3.1.RELEASE_1)|4.3.1.RELEASE_1
     33|Active     |    1|gemini-blueprint-io (2.0.9.BUILD-atlassian-m003)|2.0.9.BUILD-atlassian-m003
     34|Active     |    1|osgi_testing.test_impl (0.0.1.1488767989532)|0.0.1.1488767989532
  g! start 17
  org.osgi.framework.BundleException: Unable to resolve org.apache.servicemix.bundles.spring-context-support [17](R 17.0): missing requirement 
  [org.apache.servicemix.bundles.spring-context-support [17](R 17.0)] osgi.wiring.package; (osgi.wiring.package=com.github.benmanes.caffeine.cache) 
  Unresolved requirements: [[org.apache.servicemix.bundles.spring-context-support [17](R 17.0)] osgi.wiring.package; 
  (osgi.wiring.package=com.github.benmanes.caffeine.cache)]



   10:41:25.836 [fileinstall-load] ERROR com.tp.boot.ApplicationBootActivator - ERROR::
  org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://camel.apache.org/schema/spring]
  Offending resource: URL [file:app-camel-spring.xml]

          at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:70) ~[na:na]
          at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85) ~[na:na]
          at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:80) ~[na:na]
          at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.error(BeanDefinitionParserDelegate.java:301) ~[na:na]
          at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1408) ~[na:na]
          at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1401) ~[na:na]
          at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:172) ~[na:na]
          at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:142) ~[na:na]
          at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:94) ~[na:na]
          at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:508) ~[na:na]
          at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:392) ~[na:na]
          at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336) ~[na:na]
          at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304) ~[na:na]
          at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181) ~[na:na]
          at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217) ~[na:na]
          at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188) ~[na:na]
          at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:252) ~[na:na]
          at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:127) ~[na:na]
          at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:93) ~[na:na]
          at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129) ~[na:na]
          at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:612) ~[na:na]
          at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:513) ~[na:na]
          at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) ~[na:na]
          at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93) ~[na:na]
          at com.tp.boot.ApplicationBootActivator.start(ApplicationBootActivator.java:54) ~[na:na]
          at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:697) ~[felix.jar:na]
          at org.apache.felix.framework.Felix.activateBundle(Felix.java:2238) ~[felix.jar:na]
          at org.apache.felix.framework.Felix.startBundle(Felix.java:2144) ~[felix.jar:na]
          at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:998) ~[felix.jar:na]
          at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundle(DirectoryWatcher.java:1253) ~[na:na]
          at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundles(DirectoryWatcher.java:1225) ~[na:na]
          at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:512) ~[na:na]
          at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:361) ~[na:na]
          at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:312) ~[na:na]
  10:41:25.870 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: osgi_testing.test_api
  10:41:25.903 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: org.apache.mina.core
  10:41:25.915 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: ch.qos.logback.core
  10:41:25.928 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: slf4j.api
  10:41:25.954 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: com.sun.xml.bind.jaxb-core
  10:41:25.990 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: org.eclipse.gemini.blueprint.core
  10:41:26.022 [fileinstall-load] DEBUG com.tp.device.rba.Activator - Started [osgi_testing.test_impl3]
  10:41:26.035 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: osgi_testing.test_impl3
  10:41:26.096 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: com.sun.xml.bind.jaxb-impl
  10:41:26.123 [fileinstall-load] DEBUG com.tp.app.cons.Activator - start CONS
  10:41:26.131 [fileinstall-load] DEBUG com.tp.app.cons.Activator - Device Bundle Tracker - started
  10:41:26.139 [fileinstall-load] DEBUG com.tp.app.cons.DeviceHub -  Device [rbaonguard] ClassName [com.tp.device.rba.RBADeviceImpl] Added
  10:41:26.188 [fileinstall-load] DEBUG com.tp.app.cons.DeviceHub - Written to File [Config/devices]
  10:41:26.195 [fileinstall-load] DEBUG com.tp.app.cons.DeviceServiceTracker - Service Reference- Added  Device [rbaonguard] Device Class [com.tp.device.rba.RBADeviceImpl]
  10:41:26.204 [fileinstall-load] DEBUG com.tp.app.cons.DeviceHub -  Device [rbavoltagetep2] ClassName [com.tp.device.rba.RBADeviceImpl] Added
  10:41:26.218 [fileinstall-load] DEBUG com.tp.app.cons.DeviceHub - Written to File [Config/devices]
  10:41:26.225 [fileinstall-load] DEBUG com.tp.app.cons.DeviceServiceTracker - Service Reference- Added  Device [rbavoltagetep2] Device Class [com.tp.device.rba.RBADeviceImpl]
  10:41:26.240 [fileinstall-load] DEBUG com.tp.app.cons.DeviceHub -  Device [xpi] ClassName [com.tp.device.xpi.XPIDeviceImpl] Added
  10:41:26.266 [fileinstall-load] DEBUG com.tp.app.cons.DeviceHub - Written to File [Config/devices]
  10:41:26.271 [fileinstall-load] DEBUG com.tp.app.cons.DeviceServiceTracker - Service Reference- Added  Device [xpi] Device Class [com.tp.device.xpi.XPIDeviceImpl]
  10:41:26.278 [fileinstall-load] DEBUG com.tp.app.cons.Activator - Device Service Tracker - started
  10:41:26.283 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: osgi_testing.test_cons
  10:41:26.295 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: org.apache.servicemix.bundles.spring-tx
  10:41:26.832 [EclipseGeminiBlueprintExtenderThread-1] INFO  o.e.g.b.c.s.AbstractDelegatedExecutionApplicationContext - About to begin startRefresh for osgi_testing.test_api [27]
  10:41:26.985 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: org.eclipse.gemini.blueprint.extender
  10:41:27.000 [EclipseGeminiBlueprintExtenderThread-2] INFO  o.e.g.b.c.s.AbstractDelegatedExecutionApplicationContext - About to begin startRefresh for osgi_testing.test_api [27]
  10:41:27.336 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: org.apache.servicemix.bundles.aopalliance
  10:41:27.455 [fileinstall-load] DEBUG org.apache.camel.impl.osgi.Activator - Bundle started: ch.qos.logback.classic
  10:41:27.559 [EclipseGeminiBlueprintExtenderThread-1] DEBUG o.a.c.s.h.CamelNamespaceHandler - Using org.apache.camel.spring.CamelContextFactoryBean as CamelContextBeanDefinitionParser
  10:41:27.561 [EclipseGeminiBlueprintExtenderThread-2] DEBUG o.a.c.s.h.CamelNamespaceHandler - Using org.apache.camel.spring.CamelContextFactoryBean as CamelContextBeanDefinitionParser
  10:41:27.762 [EclipseGeminiBlueprintExtenderThread-2] DEBUG o.e.g.b.c.s.AbstractDelegatedExecutionApplicationContext - Pre refresh error for osgi_testing.test_api [27]
  org.springframework.beans.factory.BeanDefinitionStoreException: Failed to create the JAXB binder; nested exception is javax.xml.bind.JAXBException: Provider com.sun.xml.internal.bind.v2.ContextFactory could not be instantiated: javax.xml.bind.JAXBException: "org.apache.camel.model.config" doesnt contain ObjectFactory.class or jaxb.index
   - with linked exception:
  [javax.xml.bind.JAXBException: "org.apache.camel.model.config" doesnt contain ObjectFactory.class or jaxb.index]
          at org.apache.camel.spring.handler.CamelNamespaceHandler$CamelContextBeanDefinitionParser.doParse(CamelNamespaceHandler.java:380) ~[na:na]
          at org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser.parseInternal(AbstractSingleBeanDefinitionParser.java:85) ~[na:na]
          at org.springframework.beans.factory.xml.AbstractBeanDefinitionParser.parse(AbstractBeanDefinitionParser.java:61) ~[na:na]
          at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:74) ~[na:na]
          at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1411) ~[na:na]
          at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1401) ~[na:na]
          at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:172) ~[na:na]
          at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:142) ~[na:na]
          at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:94) ~[na:na]
          at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:508) ~[na:na]
          at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:392) ~[na:na]
          at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336) ~[na:na]
          at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304) ~[na:na]
          at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181) ~[na:na]
          at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217) ~[na:na]
          at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188) ~[na:na]
          at org.eclipse.gemini.blueprint.context.support.OsgiBundleXmlApplicationContext.loadBeanDefinitions(OsgiBundleXmlApplicationContext.java:170) ~[na:na]
          at org.eclipse.gemini.blueprint.context.support.OsgiBundleXmlApplicationContext.loadBeanDefinitions(OsgiBundleXmlApplicationContext.java:140) ~[na:na]
          at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129) ~[na:na]
          at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:612) ~[na:na]
          at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.access$800(AbstractDelegatedExecutionApplicationContext.java:63) ~[na:na]
          at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext$3.run(AbstractDelegatedExecutionApplicationContext.java:249) ~[na:na]
          at org.eclipse.gemini.blueprint.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85) ~[na:na]
          at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.startRefresh(AbstractDelegatedExecutionApplicationContext.java:224) ~[na:na]
          at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.stageOne(DependencyWaiterApplicationContextExecutor.java:224) ~[na:na]
          at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.refresh(DependencyWaiterApplicationContextExecutor.java:177) ~[na:na]
          at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.refresh(AbstractDelegatedExecutionApplicationContext.java:159) ~[na:na]
          at org.eclipse.gemini.blueprint.extender.internal.activator.LifecycleManager$1.run(LifecycleManager.java:207) ~[na:na]
          at java.lang.Thread.run(Unknown Source) ~[na:1.8.0_102]
  Caused by: javax.xml.bind.JAXBException: Provider com.sun.xml.internal.bind.v2.ContextFactory could not be instantiated: javax.xml.bind.JAXBException: "org.apache.camel.model.config" doesnt contain ObjectFactory.class or jaxb.index
          at javax.xml.bind.ContextFinder.newInstance(Unknown Source) ~[na:1.8.0_102]
          at javax.xml.bind.ContextFinder.find(Unknown Source) ~[na:1.8.0_102]
          at javax.xml.bind.JAXBContext.newInstance(Unknown Source) ~[na:1.8.0_102]
          at javax.xml.bind.JAXBContext.newInstance(Unknown Source) ~[na:1.8.0_102]
          at org.apache.camel.impl.DefaultModelJAXBContextFactory.newJAXBContext(DefaultModelJAXBContextFactory.java:31) ~[na:na]
          at org.apache.camel.spring.handler.CamelNamespaceHandler.getJaxbContext(CamelNamespaceHandler.java:217) ~[na:na]
          at org.apache.camel.spring.handler.CamelNamespaceHandler$CamelContextBeanDefinitionParser.doParse(CamelNamespaceHandler.java:378) ~[na:na]
          ... 28 common frames omitted
  Caused by: javax.xml.bind.JAXBException: "org.apache.camel.model.config" doesnt contain ObjectFactory.class or jaxb.index
          at com.sun.xml.internal.bind.v2.ContextFactory.createContext(Unknown Source) ~[na:1.8.0_102]
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_102]
          at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_102]
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_102]
          at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_102]
          at javax.xml.bind.ContextFinder.newInstance(Unknown Source) ~[na:1.8.0_102]
          ... 35 common frames omitted
  10:41:27.770 [EclipseGeminiBlueprintExtenderThread-1] DEBUG o.e.g.b.c.s.AbstractDelegatedExecutionApplicationContext - Pre refresh error for osgi_testing.test_api [27]

【问题讨论】:

    标签: spring apache-camel osgi apache-karaf spring-dm


    【解决方案1】:

    对于 Karaf 4.2.3、Camel 2.22.3 和 Spring 5.1,它的工作方式与旧的 spring-dm 和 Spring 3.2 一样。 它适用于我多年前为 Spring 3.2 和 Spring DM 制作的旧集成,使用:

    • 服务/引用,使用引用事务管理器测试
    • 纲要属性
    • bean 方法上的@Transactional 注释也正确创建了事务方面

    以上证明它是可行的,并且应该允许大多数旧集成几乎开箱即用。 蓝图也有可能的好处——比如能够使用 Spring Data(尚未测试),例如我也在研究的 mongo。

    显然,您需要使用新的依赖项重新编译您的项目,以使您的清单正确。

    感谢 Claus 提到的 Spring to Blueprint 兼容层。 提供此功能的特性称为“aries-blueprint-spring”。 我还没有在现实生活中使用它,但我正在研究如何将我们的 Spring 集成从 Karaf 2 (Fuse 6.3) 迁移到 Karaf 4 (Fuse 7.2)。 我个人不是蓝图的忠实拥护者,因为它有一些令人讨厌的限制,尤其是如果您像我一样使用 Spring 已有十多年了。

    兼容性层还不够完善:

    1. 它有一些非关键的错误——比如如果你用骆驼路由重新启动包,它会因为一些“模板”bean注册错误而无法启动,我相信社区会在某个时候解决这个问题。 这似乎与十年前完成的这个问题有关:https://issues.apache.org/jira/browse/CAMEL-1899 Camel 在其中添加了一些额外的 bean,这些 bean 是为了改进单元测试而创建的。 您可以通过添加到 Spring Context 来解决它直到修复:

      <bean id="template" class="java.lang.String"/>
      <bean id="fluentTemplate" class="java.lang.String"/>
      <bean id="consumerTemplate" class="java.lang.String"/>
      
    2. 我无法让 Spring 部署程序工作 - 将原始 Spring XML 部署为包,就像我们用于包的 JDBC 连接池一样。但这是一种利基方法 - 很高兴拥有。

    此外,ActiveMQ 5 客户端存在问题,目前仅适用于 Spring 4,但 Red Hat 有一个解决方案,因为他们有自己的 ActiveMQ 客户端版本,似乎适用于 Spring 5。

    通过以上所有内容,您应该很高兴在 Karaf 4.2.3 中使用 Spring 5 和 Camel。

    更新

    可悲的是,社区决定取消骆驼春对 karaf 的支持。 Camel 3 spring 组件不再工作,并且在类和资源加载时失败。

    【讨论】:

      【解决方案2】:

      终于用 OSGi 离开了 Camel-Spring。这是一个噩梦组合尝试。这种组合有很多问题。

      现在正在尝试骆驼+蓝图+卡拉夫。

      感谢大家的支持。

      【讨论】:

        【解决方案3】:
        [caused by: Unable to resolve camel-spring-dm/2.18.2: missing requirement
        [camel-spring-dm/2.18.2] osgi.identity; osgi.identity=spring-dm;
        

        错误很明显,功能解析器找不到spring-dm功能,需要先安装

        feature:install spring-dm
        

        如果我是正确的,karaf 放弃了对 spring-dm 的支持,因此该功能可能不可用,您需要手动安装 spring-dm。但是就像已经说过的那样,spring-dm 已被弃用,并且是在 OSGi 环境中使用 spring 的一种非常错误的方式。你应该转向 aries 蓝图,或者如果 spring 真的不可或缺,你应该使用 gemini-blueprint,它是一个兼容 Spring 4.2.x 的蓝图实现。

        https://eclipse.org/gemini/blueprint/ http://www.eclipse.org/gemini/blueprint/documentation/migration/

        【讨论】:

        • 我开始用 Spring 和 Camel 试验 Gemini 蓝图,让我们看看.. 但我仍然遇到“org.apache.camel.mode.config”的 jaxb 问题
        【解决方案4】:

        使用 Apache Karaf 4.0.8,因为 4.1.0 存在错误,并且该 Camel 版本不支持。

        并且 spring XML 文件应该是文件夹中的占位符,如该示例所示,例如 META-INF/spring

        但请注意,Spring DM 已被弃用且已死。所以强烈推荐使用 OSGi Blueprint。

        并且在未来,Karaf 将拥有某种 spring XML 到蓝图 XML 自动转换器,因此它可以像运行蓝图一样运行 spring xml 文件。但有关该问题的更多详细信息,请访问 Karaf 社区。​​p>

        【讨论】:

        • 好的,谢谢。我现在尝试使用 karaf 4.0.8。我也开始知道GEMINI Blueprint是我们可以在osgi环境中使用spring的方式。我们有骆驼的例子吗 CAMEL+SPRING+GEMINI BLUEPRINT+KARAF ?暂时我不能移动到蓝图白羊座。
        • 不,没有这样的例子。 Apache Camel 仅支持来自 Apache Felix 的 Apache Blueprint
        • 好的,非常感谢您的宝贵时间。到时候我们就开始想蓝图了。
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