| /* |
| * Copyright (c) 2007-2009, 2011, 2012, 2015 Eike Stepper (Berlin, Germany) 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: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.net4j.util.ui.actions; |
| |
| import org.eclipse.net4j.util.internal.ui.bundle.OM; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.OperationCanceledException; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.jobs.Job; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public abstract class LongRunningActionDelegate extends SafeActionDelegate |
| { |
| private static final ThreadLocal<Boolean> CANCELED = new ThreadLocal<Boolean>(); |
| |
| public LongRunningActionDelegate() |
| { |
| } |
| |
| /** |
| * @deprecated Not supported anymore. |
| */ |
| @Deprecated |
| protected final int getTotalWork() |
| { |
| return IProgressMonitor.UNKNOWN; |
| } |
| |
| /** |
| * @deprecated Not supported anymore. |
| */ |
| @Deprecated |
| protected final void setTotalWork(int totalWork) |
| { |
| } |
| |
| protected final void cancel() |
| { |
| CANCELED.set(Boolean.TRUE); |
| } |
| |
| @Override |
| protected final void safeRun() throws Exception |
| { |
| try |
| { |
| CANCELED.set(Boolean.FALSE); |
| preRun(); |
| |
| if (CANCELED.get() != Boolean.TRUE) |
| { |
| new Job(getText()) |
| { |
| @Override |
| protected IStatus run(IProgressMonitor progressMonitor) |
| { |
| try |
| { |
| doRun(progressMonitor); |
| return Status.OK_STATUS; |
| } |
| catch (Exception ex) |
| { |
| OM.LOG.error(ex); |
| return new Status(IStatus.ERROR, getBundleID(), ex.getMessage(), ex); |
| } |
| } |
| }.schedule(); |
| } |
| } |
| finally |
| { |
| CANCELED.remove(); |
| } |
| } |
| |
| protected void preRun() throws Exception |
| { |
| } |
| |
| protected String getBundleID() |
| { |
| return OM.BUNDLE_ID; |
| } |
| |
| /** |
| * @since 2.0 |
| */ |
| protected abstract void doRun(IProgressMonitor progressMonitor) throws Exception; |
| |
| protected final void checkCancelation(IProgressMonitor monitor) |
| { |
| if (monitor.isCanceled()) |
| { |
| throw new OperationCanceledException(); |
| } |
| } |
| } |