| /******************************************************************************* |
| * Copyright (c) 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| /* |
| * $RCSfile: UICreateRegistryJobHandler.java,v $ |
| * $Revision: 1.6 $ $Date: 2005/05/18 20:59:17 $ |
| */ |
| package org.eclipse.jem.internal.beaninfo.adapters; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.logging.Level; |
| |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.core.runtime.jobs.IJobManager; |
| import org.eclipse.core.runtime.jobs.ISchedulingRule; |
| import org.eclipse.jface.operation.IRunnableWithProgress; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.progress.IProgressService; |
| |
| import org.eclipse.jem.internal.beaninfo.core.BeaninfoPlugin; |
| |
| |
| /** |
| * This is the version which can actually reference and use the UI classes. It won't be |
| * loaded except if ui plugin is available. |
| * |
| * It will check to see if UI is running, and if it is not, then let super class handle. |
| * If it is running, then if this is the UI thread, do special but run in ui, else if not then |
| * let super handle it normally. |
| * |
| * @since 1.0.0 |
| */ |
| class UICreateRegistryJobHandler extends CreateRegistryJobHandler { |
| |
| |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jem.internal.beaninfo.adapters.CreateRegistryJobHandler#processCreateRegistry(org.eclipse.jem.internal.beaninfo.adapters.BeaninfoNature) |
| */ |
| protected void processCreateRegistry(final BeaninfoNature nature) { |
| if (PlatformUI.isWorkbenchRunning()) { |
| if (Display.getCurrent() == null) |
| super.processCreateRegistry(nature); // We are not in the UI thread. Do normal. |
| else { |
| // We are in the UI, so try to run in UI. Really don't want to do this, but we need to |
| // get the build rule, and no way to know if the UI thread already has the build rule. |
| // It would be nice to spawn off thread to do it, but if we had the build rule we couldn't |
| // get it for the spawned thread. So hopefully it won't be long. |
| IProgressService ps = PlatformUI.getWorkbench().getProgressService(); |
| final ISchedulingRule buildRule = ResourcesPlugin.getWorkspace().getRuleFactory().buildRule(); |
| |
| // TODO Note: For now, runInUI is just way too annoying. It always flashes up. It is supposed to only flash up |
| // when it is blocked by the rule. I've opened 66683 to address this. I've also opened 66690 to be able |
| // to test if the thread has the rule so that runInUI will only be used if UI thread had the rule. |
| // For now take the risk that the UI thread won't ever have the rule. This is pretty likely to be true. |
| // final boolean[] gotRuleLocally = new boolean[] {false}; |
| // try { |
| // ps.runInUI(ps, new IRunnableWithProgress() { |
| // |
| // public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { |
| // gotRuleLocally[0] = true; |
| // doCreateRegistry(nature, new NullProgressMonitor()); |
| // } |
| // }, buildRule); |
| // } catch (InvocationTargetException e) { |
| // if (e.getCause() instanceof IllegalArgumentException && !gotRuleLocally[0]) { |
| // // Error was because rule conflicted with currect rules for this thread. So do in separate thread, should be able to get rule there. |
| try { |
| ps.busyCursorWhile(new IRunnableWithProgress() { |
| |
| public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { |
| IJobManager jm = Platform.getJobManager(); |
| monitor.beginTask("", 200); //$NON-NLS-1$ |
| try { |
| jm.beginRule(buildRule, new SubProgressMonitor(monitor, 100)); |
| doCreateRegistry(nature, new SubProgressMonitor(monitor, 100)); |
| } finally { |
| jm.endRule(buildRule); |
| monitor.done(); |
| } |
| } |
| }); |
| } catch (InterruptedException e1) { |
| } catch (InvocationTargetException e2) { |
| BeaninfoPlugin.getPlugin().getLogger().log(e2.getCause(), Level.WARNING); |
| } |
| // } else |
| // BeaninfoPlugin.getPlugin().getLogger().log(e.getCause(), Level.WARNING); |
| // } catch (InterruptedException e) { |
| // } |
| } |
| } else |
| super.processCreateRegistry(nature); // Workbench not running, do default. |
| } |
| } |