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Posted to users@felix.apache.org by rcohen16 <rc...@antennasoftware.com> on 2008/03/26 17:51:53 UTC
Bundle installing another Bundle
I'm developing an "installer" bundle that reads a simple list of bundles,
fetches the jars for each and installs them. One of these bundles in the
Felix Configuration Admin. After the installer successfully installs the
configuration admin bundle and starts it up, I am trying to get the
installer to actually obtain the Configuration Admin service and push out
some configuration to the bundles that were installed.
However, I have yet to get the configuration part to work because of
classloading issues.
The following code is executed in the "installer" bundle after it has
already installed and started up the other bundles:
ServiceReference ref = _bundleContext.getServiceReference(OSGI_CONF_ADMIN);
if (ref != null) {
ConfigurationAdmin svc = (ConfigurationAdmin)
_bundleContext.getService(ref); // breaks here
.
.
}
java.lang.ClassCastException:
org.apache.felix.cm.impl.ConfigurationAdminImpl
at
com.as.bb.osgi.config.ServiceConfigSourceImpl.configure(ServiceConfigSourceImpl.java:28)
at com.as.bb.osgi.ProfileXml.executeConfigSources(ProfileXml.java:225)
at com.as.bb.osgi.ProfileXml.configure(ProfileXml.java:213)
at
com.as.bb.osgi.ProvisioningAgent.installProfile(ProvisioningAgent.java:38)
at com.as.bb.osgi.Activator.start(Activator.java:45)
at
org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:589)
at
org.apache.felix.framework.Felix._startBundle(Felix.java:1585)
at org.apache.felix.framework.Felix.startBundle(Felix.java:1519)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:354)
at
test.FelixBootstrapBaseTest.startBundles(FelixBootstrapBaseTest.java:238)
at test.InstallerTest.testStartup(InstallerTest.java:23)
What I am trying to avoid is having to install the Configuration Admin
bundle before I install the "installer" bundle. I have tried a few things to
get this to work...1) Adding a Dynamic Import to the manifest 2) Including
the osgi compendium and config admin jars in the Installer bundle and
setting them in the bundle classpath. No luck with either.
Any hints on how bundle A can install bundle B and then obtain a reference
to a service exported by bundle B would be really appreciated.
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Re: Bundle installing another Bundle
Posted by rcohen16 <rc...@antennasoftware.com>.
Thank you. Looks like I had the CM package on the bundle classpath and as a
dynamic import. It worked when i removed it from the bundle classpath.
Richard S. Hall wrote:
>
> The following setup should work:
>
> 1. Installer bundle dynamically imports the org.osgi.service.cm
> package.
> 2. Config admin bundle exports the CM package (or from a separate
> bundle).
> 3. Have your installer bundle install and start the CM bundle.
> 4. Have your installer bundle get a reference to the CM service.
>
> If this isn't working, then you likely have a packaging issue. Perhaps
> you have embedded the CM classes into your installer and are exporting
> them, but not importing them or have them available from multiple
> places? Double check to see where all the wirings for the CM package are
> going.
>
> -> richard
>
> rcohen16 wrote:
>> I'm developing an "installer" bundle that reads a simple list of bundles,
>> fetches the jars for each and installs them. One of these bundles in the
>> Felix Configuration Admin. After the installer successfully installs the
>> configuration admin bundle and starts it up, I am trying to get the
>> installer to actually obtain the Configuration Admin service and push out
>> some configuration to the bundles that were installed.
>>
>> However, I have yet to get the configuration part to work because of
>> classloading issues.
>>
>> The following code is executed in the "installer" bundle after it has
>> already installed and started up the other bundles:
>>
>> ServiceReference ref =
>> _bundleContext.getServiceReference(OSGI_CONF_ADMIN);
>> if (ref != null) {
>> ConfigurationAdmin svc = (ConfigurationAdmin)
>> _bundleContext.getService(ref); // breaks here
>> .
>> .
>> }
>>
>> java.lang.ClassCastException:
>> org.apache.felix.cm.impl.ConfigurationAdminImpl
>> at
>> com.as.bb.osgi.config.ServiceConfigSourceImpl.configure(ServiceConfigSourceImpl.java:28)
>> at com.as.bb.osgi.ProfileXml.executeConfigSources(ProfileXml.java:225)
>> at com.as.bb.osgi.ProfileXml.configure(ProfileXml.java:213)
>> at
>> com.as.bb.osgi.ProvisioningAgent.installProfile(ProvisioningAgent.java:38)
>> at com.as.bb.osgi.Activator.start(Activator.java:45)
>> at
>> org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:589)
>> at
>> org.apache.felix.framework.Felix._startBundle(Felix.java:1585)
>> at org.apache.felix.framework.Felix.startBundle(Felix.java:1519)
>> at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:354)
>> at
>> test.FelixBootstrapBaseTest.startBundles(FelixBootstrapBaseTest.java:238)
>> at test.InstallerTest.testStartup(InstallerTest.java:23)
>>
>> What I am trying to avoid is having to install the Configuration Admin
>> bundle before I install the "installer" bundle. I have tried a few things
>> to
>> get this to work...1) Adding a Dynamic Import to the manifest 2)
>> Including
>> the osgi compendium and config admin jars in the Installer bundle and
>> setting them in the bundle classpath. No luck with either.
>>
>> Any hints on how bundle A can install bundle B and then obtain a
>> reference
>> to a service exported by bundle B would be really appreciated.
>>
>>
>>
>>
>
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>
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Re: Bundle installing another Bundle
Posted by "Richard S. Hall" <he...@ungoverned.org>.
The following setup should work:
1. Installer bundle dynamically imports the org.osgi.service.cm package.
2. Config admin bundle exports the CM package (or from a separate
bundle).
3. Have your installer bundle install and start the CM bundle.
4. Have your installer bundle get a reference to the CM service.
If this isn't working, then you likely have a packaging issue. Perhaps
you have embedded the CM classes into your installer and are exporting
them, but not importing them or have them available from multiple
places? Double check to see where all the wirings for the CM package are
going.
-> richard
rcohen16 wrote:
> I'm developing an "installer" bundle that reads a simple list of bundles,
> fetches the jars for each and installs them. One of these bundles in the
> Felix Configuration Admin. After the installer successfully installs the
> configuration admin bundle and starts it up, I am trying to get the
> installer to actually obtain the Configuration Admin service and push out
> some configuration to the bundles that were installed.
>
> However, I have yet to get the configuration part to work because of
> classloading issues.
>
> The following code is executed in the "installer" bundle after it has
> already installed and started up the other bundles:
>
> ServiceReference ref = _bundleContext.getServiceReference(OSGI_CONF_ADMIN);
> if (ref != null) {
> ConfigurationAdmin svc = (ConfigurationAdmin)
> _bundleContext.getService(ref); // breaks here
> .
> .
> }
>
> java.lang.ClassCastException:
> org.apache.felix.cm.impl.ConfigurationAdminImpl
> at
> com.as.bb.osgi.config.ServiceConfigSourceImpl.configure(ServiceConfigSourceImpl.java:28)
> at com.as.bb.osgi.ProfileXml.executeConfigSources(ProfileXml.java:225)
> at com.as.bb.osgi.ProfileXml.configure(ProfileXml.java:213)
> at
> com.as.bb.osgi.ProvisioningAgent.installProfile(ProvisioningAgent.java:38)
> at com.as.bb.osgi.Activator.start(Activator.java:45)
> at
> org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:589)
> at
> org.apache.felix.framework.Felix._startBundle(Felix.java:1585)
> at org.apache.felix.framework.Felix.startBundle(Felix.java:1519)
> at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:354)
> at
> test.FelixBootstrapBaseTest.startBundles(FelixBootstrapBaseTest.java:238)
> at test.InstallerTest.testStartup(InstallerTest.java:23)
>
> What I am trying to avoid is having to install the Configuration Admin
> bundle before I install the "installer" bundle. I have tried a few things to
> get this to work...1) Adding a Dynamic Import to the manifest 2) Including
> the osgi compendium and config admin jars in the Installer bundle and
> setting them in the bundle classpath. No luck with either.
>
> Any hints on how bundle A can install bundle B and then obtain a reference
> to a service exported by bundle B would be really appreciated.
>
>
>
>
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