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http://issues.apache.org/jira/browse/FELIX-78?page=comments#action_12415508 ]
Richard S. Hall commented on FELIX-78:
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Ok, I just committed some changes that should make it possible to remedy this
situation in short order. I stole an idea from how mangen does its
configuration properties (thanks Rob!) and use property substitution to achieve
selection. I had to modify mangen's approach to work with nested property
substitution, though, so this is a little more tricky and might contain some
subtle bugs.
At any rate, I have now defined the system packages property like this in
config.properties:
org.osgi.framework.system.packages=org.osgi.framework; version=1.3.0, \
org.osgi.service.packageadmin; version=1.2.0, \
org.osgi.service.startlevel; version=1.0.0, \
org.osgi.service.url; version=1.0.0, \
${jre-${java.specification.version}}
I have also defined properties called:
jre-1.3=...list of packages...
jre-1.4=...list of packages...
jre-1.5=...list of packages...
Now when Main.java reads the config.properties file and performs variable
substitution, it translates:
${jre-${java.specification.version}}
to (assuming we are running on JRE 1.4)
${jre-1.4}
Which then gets translated to the property value, which is the list of exported
packages for JRE 1.4.
Currently, Marcel gave me a complete set of packages for JRE 1.5, but I still
need sets of packages for 1.3 and 1.4, so if someone wants to attach them to
this JIRA issue, I will finish this off.
> Modify framework to export proper JRE packages for the execution environment
> ----------------------------------------------------------------------------
>
> Key: FELIX-78
> URL: http://issues.apache.org/jira/browse/FELIX-78
> Project: Felix
> Type: Improvement
> Components: Framework
> Reporter: Richard S. Hall
> Priority: Minor
>
> The OSGi specification requires that class path classes are hidden from
> bundles. To expose classes on the class path, the system bundle can be made
> to "export" them by adding the packages to the
> org.osgi.framework.system.packages property in the config.properties file.
> The should create proper value definitions for this property for JDKs 1.3,
> 1.4, and 1.5 and perhaps define some way in the config.properties file to
> specify system property guards for enabling/disabling various properties, so
> that we can add all three values to the config.properties file, but only
> enable the value corresponding to the appropriate execution platform at run
> time.
> Of course, this is just one possible suggestion for a solution. Perhaps there
> is a better one.
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