Reload target platform in eclipse dynamically from plugin

Question

I'm writing a plugin to eclipse, in which I need to reload active target platform, at a given time. - just as the Preferences -> Plug-In Development -> Target Platform -> Reload.button, but of course dynamically from my plugin.

I would imagine something like this would be the way, but i can't find the entrance/MagicProvider:

MagicProvider.getTargetPlatforms().getActive().reload();

Hope some of you know the trick :)

Answer 1

Tried Max's approach, but it didn't seem to work. After searching the eclipse source I found out, that the ITargetDefinition is just a working copy, and must be saved. So the code will be:

org.eclipse.pde.internal.core.target.provisional.ITargetPlatformService service = org.eclipse.pde.internal.core.PDECore.getDefault().acquireService(ITargetPlatformService.class.getName());
org.eclipse.pde.internal.core.target.provisional.ITargetDefinition target = service.getWorkspaceTargetHandle().getTargetDefinition();
target.resolve(IProgressMonitor);
org.eclipse.pde.internal.core.target.provisional.LoadTargetDefinitionJob.load(target);

But credits to Max for the guideline. :)

If anyone else needs some info, I recommend taking a look at

org.eclipse.pde.internal.ui.preferences.TargetPlatformPreferencePage near line 771 - 812 and method handleReload() and org.eclipse.pde.internal.ui.editor.targetdefinition.TargetEditor near line line 231

Answer 2

Here you go:

org.eclipse.pde.internal.core.target.provisional.ITargetPlatformService service = org.eclipse.pde.internal.core.PDECore.getDefault().acquireService(ITargetPlatformService.class.getName());
org.eclipse.pde.internal.core.target.provisional.ITargetDefinition target = service.getWorkspaceTargetHandle().getTargetDefinition();
target.resolve(IProgressMonitor);

Answer 3

In Eclipse 2020-09 it works for me as...

import org.eclipse.pde.core.target.ITargetDefinition;
import org.eclipse.pde.core.target.ITargetPlatformService;
import org.eclipse.pde.core.target.LoadTargetDefinitionJob;
...
    BundleContext context = ... from Activator.start() method
    ServiceReference<ITargetPlatformService> ref = context.getServiceReference(ITargetPlatformService.class);
    ITargetPlatformService service = context.getService(ref);
    ITargetDefinition def = service.getWorkspaceTargetDefinition();
    def.resolve(new NullProgressMonitor());
    LoadTargetDefinitionJob.load(def);

Add dependency org.eclipse.pde.core in your plugin.xml