Hi Matthias,
I would post such kind of message on the Karaf dev mailing list.
Anyway, let me take a look.
Regards
JB
On 02/12/2015 08:14 AM, Matthias Jeschke wrote:
Hi,
I wanted to try out karaf cellar with iPojo, however, I ran into some
problems. The (very simple) setup is as follows:
The service interface bundle contains the service interface
"MyRemoteService".
package com.boxheadrobot.remoteservice.service;
public interface MyRemoteService {
String getOutput();
}
The service implementation bundle contains a service implementation
"MyRemoteServiceImpl".
package com.boxheadrobot.remoteservice.service.impl;
import com.boxheadrobot.remoteservice.service.MyRemoteService;
import org.apache.felix.ipojo.annotations.Component;
import org.apache.felix.ipojo.annotations.Instantiate;
import org.apache.felix.ipojo.annotations.Provides;
import org.apache.felix.ipojo.annotations.StaticServiceProperty;
@Component
@Provides(properties = {@StaticServiceProperty(name =
"service.exported.interfaces", type = "java.lang.String", value = "*")})
@Instantiate
public class MyRemoteServiceImpl implements MyRemoteService {
@Override
public String getOutput() {
return "Node 1";
}
}
The service consumer bundle contains a single class that requires optional
"MyRemoteServices". This is done using a @Bind(optional = true, aggregate =
true) annotation.
package com.boxheadrobot.remoteservice.consumer;
import com.boxheadrobot.remoteservice.service.MyRemoteService;
import org.apache.felix.ipojo.annotations.Bind;
import org.apache.felix.ipojo.annotations.Component;
import org.apache.felix.ipojo.annotations.Instantiate;
import org.apache.felix.ipojo.annotations.Validate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Component
@Instantiate
public class MyRemoteServiceConsumer {
private static final Logger LOG =
LoggerFactory.getLogger(MyRemoteServiceConsumer.class);
@Validate
public void start() {
LOG.info("Starting consumer");
}
@Bind(optional = true, aggregate = true)
public void bindService(MyRemoteService service) {
LOG.info("Service bound: {}", service);
LOG.info("Service output: {}", service.getOutput());
}
}
When I deploy the bundles to karaf (cellar-dosgi), I get some really weird
log messages. The service seems to be getting bound more than once and at
one point a null service is bound:
2015-02-11 22:03:50,064 | INFO | pool-1-thread-1 |
MyRemoteServiceConsumer | 149 -
com.boxheadrobot.remote-service-consumer - 1.0.0.SNAPSHOT | Service bound:
com.boxheadrobot.remoteservice.service.impl.MyRemoteServiceImpl@7dddc24a
2015-02-11 22:03:50,089 | INFO | pool-1-thread-1 |
MyRemoteServiceConsumer | 149 -
com.boxheadrobot.remote-service-consumer - 1.0.0.SNAPSHOT | Service output:
Node 1
2015-02-11 22:03:50,089 | INFO | pool-1-thread-1 |
MyRemoteServiceConsumer | 149 -
com.boxheadrobot.remote-service-consumer - 1.0.0.SNAPSHOT | Service bound:
com.boxheadrobot.remoteservice.service.impl.MyRemoteServiceImpl@7dddc24a
2015-02-11 22:03:50,089 | INFO | pool-1-thread-1 |
MyRemoteServiceConsumer | 149 -
com.boxheadrobot.remote-service-consumer - 1.0.0.SNAPSHOT | Service output:
Node 1
2015-02-11 22:03:50,089 | INFO | pool-1-thread-1 |
MyRemoteServiceConsumer | 149 -
com.boxheadrobot.remote-service-consumer - 1.0.0.SNAPSHOT | Starting
consumer
2015-02-11 22:03:54,657 | INFO | pool-13-thread-1 |
MyRemoteServiceConsumer | 149 -
com.boxheadrobot.remote-service-consumer - 1.0.0.SNAPSHOT | Service bound:
com.boxheadrobot.remoteservice.service.impl.MyRemoteServiceImpl@7dddc24a
2015-02-11 22:03:54,659 | INFO | pool-13-thread-1 |
MyRemoteServiceConsumer | 149 -
com.boxheadrobot.remote-service-consumer - 1.0.0.SNAPSHOT | Service output:
Node 1
2015-02-11 22:04:09,641 | INFO | pool-13-thread-1 |
MyRemoteServiceConsumer | 149 -
com.boxheadrobot.remote-service-consumer - 1.0.0.SNAPSHOT | Service bound:
null
After this there comes an endless stream of error messages. There are
printed out in rapid succession (as one can see from the timestamps):
2015-02-11 22:04:16,128 | ERROR | l-11-thread-3883 |
EventDispatchTask | 136 - org.apache.karaf.cellar.core -
3.0.1 | Error while dispatching task
org.osgi.service.blueprint.container.ServiceUnavailableException: The
Blueprint container is being or has been destroyed:
(objectClass=org.apache.karaf.cellar.core.event.EventTransportFactory)
at
org.apache.aries.blueprint.container.ReferenceRecipe.getService(ReferenceRecipe.java:240)[15:org.apache.aries.blueprint.core:1.4.2]
at
org.apache.aries.blueprint.container.ReferenceRecipe.access$000(ReferenceRecipe.java:55)[15:org.apache.aries.blueprint.core:1.4.2]
at
org.apache.aries.blueprint.container.ReferenceRecipe$ServiceDispatcher.call(ReferenceRecipe.java:298)[15:org.apache.aries.blueprint.core:1.4.2]
at Proxya79ac39f_dd86_4bde_a6ae_4820e8b9aafc.getEventProducer(Unknown
Source)[:]
at
org.apache.karaf.cellar.dosgi.RemoteServiceCallHandler.handle(RemoteServiceCallHandler.java:99)[143:org.apache.karaf.cellar.dosgi:3.0.1]
at
org.apache.karaf.cellar.dosgi.RemoteServiceCallHandler.handle(RemoteServiceCallHandler.java:37)[143:org.apache.karaf.cellar.dosgi:3.0.1]
at Proxy5b93b380_11e9_4f88_8322_dc1803383205.handle(Unknown Source)[:]
at Proxycafc2557_966f_4434_98f6_44d1b9cf232f.handle(Unknown Source)[:]
at
org.apache.karaf.cellar.core.event.EventDispatchTask.run(EventDispatchTask.java:57)[136:org.apache.karaf.cellar.core:3.0.1]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_25]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_25]
at java.lang.Thread.run(Thread.java:745)[:1.8.0_25]
2015-02-11 22:04:16,132 | ERROR | l-11-thread-3897 |
EventDispatchTask | 136 - org.apache.karaf.cellar.core -
3.0.1 | Error while dispatching task
org.osgi.service.blueprint.container.ServiceUnavailableException: The
Blueprint container is being or has been destroyed:
(objectClass=org.apache.karaf.cellar.core.event.EventTransportFactory)
at
org.apache.aries.blueprint.container.ReferenceRecipe.getService(ReferenceRecipe.java:240)[15:org.apache.aries.blueprint.core:1.4.2]
at
org.apache.aries.blueprint.container.ReferenceRecipe.access$000(ReferenceRecipe.java:55)[15:org.apache.aries.blueprint.core:1.4.2]
at
org.apache.aries.blueprint.container.ReferenceRecipe$ServiceDispatcher.call(ReferenceRecipe.java:298)[15:org.apache.aries.blueprint.core:1.4.2]
at Proxya79ac39f_dd86_4bde_a6ae_4820e8b9aafc.getEventProducer(Unknown
Source)[:]
at
org.apache.karaf.cellar.dosgi.RemoteServiceCallHandler.handle(RemoteServiceCallHandler.java:99)[143:org.apache.karaf.cellar.dosgi:3.0.1]
at
org.apache.karaf.cellar.dosgi.RemoteServiceCallHandler.handle(RemoteServiceCallHandler.java:37)[143:org.apache.karaf.cellar.dosgi:3.0.1]
at Proxy5b93b380_11e9_4f88_8322_dc1803383205.handle(Unknown Source)[:]
at Proxycafc2557_966f_4434_98f6_44d1b9cf232f.handle(Unknown Source)[:]
at
org.apache.karaf.cellar.core.event.EventDispatchTask.run(EventDispatchTask.java:57)[136:org.apache.karaf.cellar.core:3.0.1]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_25]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_25]
at java.lang.Thread.run(Thread.java:745)[:1.8.0_25]
2015-02-11 22:04:16,129 | ERROR | l-11-thread-3881 |
EventDispatchTask | 136 - org.apache.karaf.cellar.core -
3.0.1 | Error while dispatching task
Is there some error in my setup? On thing that seemed odd was that when I
list all dosgi services using cluster:services-list, I see not only the
MyRemoteService but also an iPojo service...
--
Jean-Baptiste Onofré
jbono...@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
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