[
Date Prev][
Date Next][
Thread Prev][
Thread Next][
Date Index][
Thread Index]
[
List Home]
|
Re: [ecf-dev] Newbie problem/question
|
Hi Ali,
Ali Naddaf wrote:
Hello everyone.
I am trying to learn more about the ECF and started with a simple
example where there is a simple "echo" service, published by ECF and a
client to call that. I am using declarative services and am running in
an issue with publishing my service; here is my component.xml for my
service:
<?xml version="1.0" encoding="UTF-8"?>
<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0";
enable="true" immediate="true" name="ecf.test.one.host">
<implementation class="ecf.test.one.EchoServiceImp"/>
<property name="service.exported.interfaces" type="String" value="*"/>
<property name="service.exported.configs" type="String"
value="ecf.generic.server"/>
<property name="org.eclipse.ecf.containerFactoryArgs" type="String"
value="ecftcp://localhost:3001/server"/>
<service>
<provide interface="ecf.test.one.echoservice.EchoService"/>
</service>
<reference cardinality="1..1"
interface="org.eclipse.ecf.core.IContainerFactory"
name="IContainerFactory" policy="static"/>
</scr:component>
and when I start the framework, I get the following exception:
osgi> [log;-0500 2010.04.18
22:34:10:972;INFO;org.eclipse.ecf.osgi.services.distribution;org.eclipse.core.runtime.Status[plugin=org.eclipse.ecf.osgi.services.distribution;code=0;message=Exception
creating container from
ContainerTypeDescription=ContainerTypeDescription[name=ecf.generic.server;instantiator=org.eclipse.ecf.provider.generic.GenericContainerInstantiator@1ab28fe;desc=ECF
Generic
Server;;severity4;exception=org.eclipse.core.runtime.AssertionFailedException:
null argument:;children=[]]]
org.eclipse.core.runtime.AssertionFailedException: null argument:
at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:85)
at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:73)
at
org.eclipse.ecf.remoteservice.RemoteServiceContainer.<init>(RemoteServiceContainer.java:29)
at
org.eclipse.ecf.remoteservice.RemoteServiceContainer.<init>(RemoteServiceContainer.java:38)
at
org.eclipse.ecf.osgi.services.distribution.AbstractHostContainerFinder.createMatchingContainer(AbstractHostContainerFinder.java:217)
at
org.eclipse.ecf.osgi.services.distribution.AbstractHostContainerFinder.createAndConfigureHostContainers(AbstractHostContainerFinder.java:194)
at
org.eclipse.ecf.osgi.services.distribution.DefaultHostContainerFinder.findHostContainers(DefaultHostContainerFinder.java:45)
at
org.eclipse.ecf.internal.osgi.services.distribution.EventHookImpl.findHostContainers(EventHookImpl.java:173)
at
org.eclipse.ecf.internal.osgi.services.distribution.EventHookImpl.handleRegisteredServiceEvent(EventHookImpl.java:97)
at
org.eclipse.ecf.internal.osgi.services.distribution.EventHookImpl.event(EventHookImpl.java:61)
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.notifyEventHooksPrivileged(ServiceRegistry.java:1143)
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:743)
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:711)
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130)
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:206)
at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:507)
at
org.eclipse.equinox.internal.ds.InstanceProcess.registerService(InstanceProcess.java:488)
at
org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:205)
at
org.eclipse.equinox.internal.ds.Resolver.buildNewlySatisfied(Resolver.java:429)
at
org.eclipse.equinox.internal.ds.Resolver.enableComponents(Resolver.java:211)
at
org.eclipse.equinox.internal.ds.SCRManager.performWork(SCRManager.java:798)
at
org.eclipse.equinox.internal.ds.SCRManager$QueuedJob.dispatch(SCRManager.java:765)
at org.eclipse.equinox.internal.ds.WorkThread.run(WorkThread.java:89)
at
org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor.run(Executor.java:70)
[log;-0500 2010.04.18
22:34:10:974;WARNING;org.eclipse.ecf.osgi.services.distribution;org.eclipse.core.runtime.Status[plugin=org.eclipse.ecf.osgi.services.distribution;code=2;message=org.eclipse.ecf.internal.osgi.services.distribution.EventHookImpl:handleRegisteredServiceEvent:No
remote service containers found for
serviceReference={ecf.test.one.echoservice.EchoService}={component.name=ecf.test.one.host,
component.id=0,
org.eclipse.ecf.containerFactoryArgs=ecftcp://localhost:3001/server,
service.exported.configs=ecf.generic.server,
service.exported.interfaces=*, service.id=47}. Service NOT
EXPORTED;severity2;exception=null;children=[]]]
I can't figure out what I am missing. Any help is greatly appreciated
to get me going.
Hmmm. This is a little puzzeling. The problem seems to be that in
AbstractHostContainerFinder is this code (starting on line 215):
IContainer container = createContainer(serviceReference,
containerTypeDescription);
return new RemoteServiceContainer(container);
The call to new RemoteServiceContainer(container); is apparently
throwing the AssertionFailedException/assertion error...as the value of
container is apparently null. But I don't quite understand how
createContainer could actually return null in your case.
In the example code
(org.eclipse.ecf.examples.remoteservices.hello.ds.host), the ds markup
is this...and it looks very close to yours:
<implementation
class="org.eclipse.ecf.examples.internal.remoteservices.hello.ds.host.HelloComponent"/>
<property name="service.exported.interfaces" type="String" value="*"/>
<property name="service.exported.configs" type="String"
value="ecf.generic.server"/>
<property name="org.eclipse.ecf.containerFactoryArgs" type="String"
value="ecftcp://localhost:30001/server"/>
<service>
<provide
interface="org.eclipse.ecf.examples.remoteservices.hello.IHello"/>
</service>
<reference cardinality="1..1"
interface="org.eclipse.ecf.core.IContainerFactory"
name="IContainerFactory" policy="static"/>
And this host starts up just fine.
Would you be willing to send me your test projects and let me run/debug
using it? This seems to be something wrong/bug in the container finder
implementation, but I can't immediately tell what it is.
If you are willing, please just export to zip your projects for the host
(no need for the client at the moment), and I will take a look at what's
going on.
Thanks,
Scott
