[platform-core-dev] Dynamic Plug-in

[Scott Fairbrother <scottf@xxxxxxxxxx>]

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
607 Pinewood Dr
Apex , NC 27502

Voice : 919-367-9345  TL:  223-7851

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