You're hitting https://issues.apache.org/jira/browse/FELIX-1131, for which I've just provided a patch. Feel free to test it and report.
2013/6/18 Charles Moulliard <[email protected]> > Hi, > > I would like to deploy on OSGI platform (Karaf) two different versions > (but could be more) of an OSGI service (org.acme.common.HelloWorldService - > v1 & v2). For that purpose I have created 2 Blueprint XML config files, > packaged the bundles and deploy them on karaf > > [ 57] [Active ] [Created ] [ 80] Acme :: OSGI :: Client (1.0.0) > [ 60] [Active ] [Created ] [ 80] Acme :: OSGI :: Commons :: v1 > (1.0.0) > > Here is an example of blueprint config for Commons V1 > > <?xml version="1.0" encoding="UTF-8" standalone="no"?> > <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"; > xmlns:cm=" > http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.0.0";> > > <cm:property-placeholder id="property-placeholder" > persistent-id="config.v1"/> > > <bean id="helloWorldService" > class="org.acme.common.HelloWorldServiceImpl" > init-method="init" destroy-method="destroy"> > <property name="version" value="${version}"/> > </bean> > > <service ref="helloWorldService" > interface="org.acme.common.HelloWorldService" > ranking="100"> > <service-properties> > <entry key="version" value="v1"/> > </service-properties> > </service> > > </blueprint> > > Now, a bundle, which is a client of a service will consume it. > > <?xml version="1.0" encoding="UTF-8" standalone="no"?> > <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0";> > > <bean id="helloWorldClient" class="org.acme.client.HelloWorldClient" > init-method="callService"> > <property name="service" ref="helloWorldService"/> > </bean> > > <reference id="helloWorldService" > interface="org.acme.common.HelloWorldService" > filter="(version=v1)"/> > > </blueprint> > > That works fine. > > If now, I would like, that the client uses the latest version of the > service v2 (and not v1) when we have 2 OSGI Services deployed on OSGI > Registry, I must specifically specified that it must import the package > "org.acme.common;version=2.0". > But when I use a version range to let the bundle to take the latest > version available, then I get this error > > [ 57] [Active ] [Failure ] [ 80] Acme :: OSGI :: Client (1.0.0) > [ 60] [Active ] [Created ] [ 80] Acme :: OSGI :: Commons :: v1 > (1.0.0) > [ 61] [Active ] [Created ] [ 80] Acme :: OSGI :: Commons :: v2 > (2.0.0) > > Caused by: java.lang.ClassCastException: > org.acme.common.HelloWorldServiceImpl cannot be cast to > org.acme.common.HelloWorldService > at Proxy93f66d24_52d9_49b4_9d6c_8c65ce3ef1f1.callService(Unknown Source) > at org.acme.client.HelloWorldClient.callService(HelloWorldClient.java:14) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.6.0_45] > > Remark : Doing a refresh of the bundle client does not allow the bundle to > load the latest package version available. > > karaf@root> packages:exports 60 > ID Packages > 60 org.acme.common; version=1.0.0 > karaf@root> packages:exports 61 > ID Packages > 61 org.acme.common; version=2.0.0 > > karaf@root> packages:imports 57 > Acme :: OSGI :: Commons :: v1 (60): org.acme.common; version=1.0.0 > > Is there a workaround to allow a bundle which is a client of an OSGI > Service (= Proxy object) to use the bundle containing the latest package > version deployed ? > > Regards, > > -- > Charles Moulliard > Apache Committer / Architect @RedHat > Twitter : @cmoulliard | Blog : http://cmoulliard.blogspot.com > >
