Hi all, I am currently working on a Camel project inside Fuse ESB but also saw this problem inside the latest Servicemix release.
When using an OSGi service as processor inside a route and I try to uninstall the project the route that uses the processor gets not shut down because it calls the toString() method of the OSGi service which is already uninstalled. I don't know if it is a real bug but wanted to share my experience. A simple workaround can also be seen at the end of the post. The setup: Following bundles are involved: - Service-API-Bundle - Service-Implementation-Bundle - Camel-Route-Bundle The route looks like: --------------------------------------------- <?xml version="1.0" encoding="UTF-8"?> <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:jaxrs="http://cxf.apache.org/blueprint/jaxrs"; xmlns:cxf="http://cxf.apache.org/blueprint/core"; 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/jaxrs http://cxf.apache.org/schemas/blueprint/jaxrs.xsd http://cxf.apache.org/blueprint/core http://cxf.apache.org/schemas/blueprint/core.xsd";> <reference id="osgiService" interface="sample.Service"/> <camelContext id="camelContext" xmlns="http://camel.apache.org/schema/blueprint";> <route id="route"> <from uri="direct-vm:start"/> <process ref="bean:osgiService"/> </camelContext> </blueprint> --------------------------------------------- Now if uninstalling all bundles or updating the "Service-Bundles" it happens that the route does not shut down as it tries invoke the toString() method of the OSGi service. The invocation of the toString() method originates from org.apache.camel.impl.RouteService.doStop() where the LifecycleStrategys onRoutesremove() method is invoked which in turn calls the getManagedObjectForRoute() method of the DefaultManagementObjectStrategy class. Now this class creates a new ManagedRoute which invokes the toString() method of the route. The following stack trace shows this: --------------------------------------------- org.osgi.service.blueprint.container.ServiceUnavailableException: Timeout expired when waiting for mandatory OSGi service reference: (&(type=rest)(objectClass=com.dertouristik.dto.engis.commons.errorrenderer.ErrorRenderer)) at org.apache.aries.blueprint.container.ReferenceRecipe.getService(ReferenceRecipe.java:226) at org.apache.aries.blueprint.container.ReferenceRecipe.access$000(ReferenceRecipe.java:54) at org.apache.aries.blueprint.container.ReferenceRecipe$ServiceDispatcher.call(ReferenceRecipe.java:291) at Proxy5b7cc1fb_451d_4876_8118_a426c5be850a.toString(Unknown Source) at java.lang.String.valueOf(String.java:2854)[:1.7.0_09] at java.lang.StringBuilder.append(StringBuilder.java:128)[:1.7.0_09] at org.apache.camel.processor.WrapProcessor.toString(WrapProcessor.java:39) at java.lang.String.valueOf(String.java:2854)[:1.7.0_09] at java.lang.StringBuilder.append(StringBuilder.java:128)[:1.7.0_09] at org.apache.camel.processor.interceptor.DefaultChannel.toString(DefaultChannel.java:341) at java.lang.String.valueOf(String.java:2854)[:1.7.0_09] at java.lang.StringBuilder.append(StringBuilder.java:128)[:1.7.0_09] [Skipped lines not of interrest] at java.lang.String.valueOf(String.java:2854)[:1.7.0_09] at java.lang.StringBuilder.append(StringBuilder.java:128)[:1.7.0_09] at org.apache.camel.processor.DelegateAsyncProcessor.toString(DelegateAsyncProcessor.java:62) at org.apache.camel.processor.RouteInflightRepositoryProcessor.toString(RouteInflightRepositoryProcessor.java:62) at java.lang.String.valueOf(String.java:2854)[:1.7.0_09] at java.lang.StringBuilder.append(StringBuilder.java:128)[:1.7.0_09] at org.apache.camel.management.InstrumentationProcessor.toString(InstrumentationProcessor.java:50) at java.lang.String.valueOf(String.java:2854)[:1.7.0_09] at java.lang.StringBuilder.append(StringBuilder.java:128)[:1.7.0_09] at org.apache.camel.impl.EventDrivenConsumerRoute.toString(EventDrivenConsumerRoute.java:51) at org.apache.camel.management.mbean.ManagedRoute.<init>(ManagedRoute.java:52) at org.apache.camel.management.mbean.ManagedSuspendableRoute.<init>(ManagedSuspendableRoute.java:30) at org.apache.camel.management.DefaultManagementObjectStrategy.getManagedObjectForRoute(DefaultManagementObjectStrategy.java:116) at org.apache.camel.management.DefaultManagementLifecycleStrategy.onRoutesRemove(DefaultManagementLifecycleStrategy.java:537) at org.apache.camel.impl.RouteService.doStop(RouteService.java:192) at org.apache.camel.support.ChildServiceSupport.stop(ChildServiceSupport.java:74) at org.apache.camel.support.ChildServiceSupport.stop(ChildServiceSupport.java:98) at org.apache.camel.util.ServiceHelper.stopService(ServiceHelper.java:112) at org.apache.camel.util.ServiceHelper.stopAndShutdownService(ServiceHelper.java:158) at org.apache.camel.impl.DefaultCamelContext.shutdownServices(DefaultCamelContext.java:1740) at org.apache.camel.impl.DefaultCamelContext.shutdownServices(DefaultCamelContext.java:1765) at org.apache.camel.impl.DefaultCamelContext.shutdownServices(DefaultCamelContext.java:1753) at org.apache.camel.impl.DefaultCamelContext.doStop(DefaultCamelContext.java:1616) at org.apache.camel.support.ServiceSupport.stop(ServiceSupport.java:91) at org.apache.camel.blueprint.BlueprintCamelContext.destroy(BlueprintCamelContext.java:109) --------------------------------------------- The problem now is in the org.apache.camel.processor.WrapProcessor which invokes the toString() method of the already uninstalled OSGi service. A really simple workaround is to replace <process ref="osgiService"/> with <to uri="bean:osgiService"/> Kind regards Dominik -- View this message in context: http://camel.465427.n5.nabble.com/Blueprint-route-not-shutdown-when-using-OSGi-service-processor-tp5746114.html Sent from the Camel - Users mailing list archive at Nabble.com.
