Re: [platform-core-dev] Dynamic Plug-in

[Scott Fairbrother <scottf@xxxxxxxxxx>]

My problem was that the
bundle had dependencies that were unresolved. Fixed that and now the console
shows:

RESOLVED    jdg2e@D:\I0529\JDG2EBonusPack\plugins\com.ibm.jdg2e.miniwp.bonus_pack_3.0.0
[28]

Added new perspectives,
views, actions, and preferences and the components (UI) all responded accordingly.
   

Thanks,
Scott Fairbrother

platform-core-dev-admin@xxxxxxxxxxx wrote on 06/01/2004
03:41:35 PM:

> 
> After doing this if you look in the OSGi console (run with -console)
and do an 
> "ss", is your bundle there?  Is it RESOLVED?  Doing
the refreshPackages will tell 
> us to resolve.  As a result, the plugin.xml willbe parsed by
the registry and the 
> elements added.  A registry change event will then be broadcast.
 From there on it 
> is up to the components (e.g., UI) to listen and do the right thing.
> 
> Jeff 
> 
> 

> 
> Scott Fairbrother <scottf@xxxxxxxxxx> 
> Sent by: platform-core-dev-admin@xxxxxxxxxxx 
> 06/01/2004 02:30 PM 
> 
> Please respond to
> platform-core-dev
> 
> To
> 
> platform-core-dev@xxxxxxxxxxx 
> 
> cc
> 
> Subject
> 
> [platform-core-dev] Dynamic Plug-in
> 
> 
> 
> 
> 
> I'm trying to roll my own configurator, that will load a bundle(s).
 I think I'm 
> getting through the load process clean but the bundles extensions,
menus, views, 
> help, contributions are not updated in the UI.  Is there some
trick to forcing the 
> framework to parse the new plug-in stuff dynamically. 
> 
> Here is a simplified bit of code, gleaned from the update ConfigurationActivator.
> 
> 
> public void run(IAction action) { 
>    List toRefresh = getUnresolvedBundles(); //Get all unresolved
bundles 
>    Bundle target; 
>    try { 
>      URL bundleURL = new URL( 
>          "reference:file:" 
>              + "D:/I0529/JDG2EBonusPack/plugins/com.ibm.jdg2e.mini.workplace.
> bonus_pack_3.0.0"); 
>      target = ConfiguratorPlugin 
>          .getDefault() 
>          .getPluginContext() 
>          .installBundle( 
>              "D:/I0529/eclipse/workspace/com.ibm.jdg2e.mini.workplace.bonus_pack/",
>              bundleURL.openStream());
>      toRefresh.add(target); // any new bundle should
be refreshed as well 
>      refreshPackages((Bundle[]) toRefresh 
>          .toArray(new Bundle[toRefresh.size()]));
//refresh all the bundles 
>      // specified and their 
>      // dependents. 
>    } catch (Exception e) { 
>      e.printStackTrace(); 
>    } 
>    MessageDialog.openInformation(window.getShell(), 
>        "Configurator Plug-in", "Bonus
pack bundle was added"); 
>  } 
>  private List getUnresolvedBundles() { 
>    Bundle[] allBundles = ConfiguratorPlugin.getDefault()
>        .getPluginContext().getBundles(); 
>    List unresolved = new ArrayList(); 
>    for (int i = 0; i < allBundles.length; i++) 
>      if (allBundles[i].getState() == Bundle.INSTALLED)
>        unresolved.add(allBundles[i]); 
>    return unresolved; 
>  } 
>  private void refreshPackages(Bundle[] bundles) { 
>    if (bundles.length == 0) 
>      return; 
>    ServiceReference packageAdminRef = ConfiguratorPlugin
>        .getDefault().getPluginContext().getServiceReference(
>            PackageAdmin.class.getName());
>    PackageAdmin packageAdmin = null; 
>    if (packageAdminRef != null) { 
>      packageAdmin = (PackageAdmin) ConfiguratorPlugin
>          .getDefault().getPluginContext().getService(
>              packageAdminRef);
>      if (packageAdmin == null) 
>        return; 
>    } 
> 
>    final boolean[] flag = new boolean[]{false}; 
>    FrameworkListener listener = new FrameworkListener()
{ 
>      public void frameworkEvent(FrameworkEvent event)
{ 
>        if (event.getType() == FrameworkEvent.PACKAGES_REFRESHED)
>          synchronized (flag) { 
>            flag[0] = true; 
>            flag.notifyAll(); 
>          } 
>      } 
>    }; 
>    ConfiguratorPlugin.getDefault().getPluginContext() 
>        .addFrameworkListener(listener); 
>    packageAdmin.refreshPackages(bundles); 
>    synchronized (flag) { 
>      while (!flag[0]) { 
>        try { 
>          flag.wait(); 
>        } catch (InterruptedException e) { 
>        } 
>      } 
>    } 
>    ConfiguratorPlugin.getDefault().getPluginContext() 
>        .removeFrameworkListener(listener); 
>    ConfiguratorPlugin.getDefault().getPluginContext() 
>        .ungetService(packageAdminRef); 
>  } 
> 
> 
>    
> 
> Thanks,
> Scott Fairbrother
> Eclipse/WebSphere Studio Jumpstart Team
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