| /******************************************************************************* |
| * Copyright (c) 2006, 2007 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.debug.internal.ui.model.elements; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IElementCompareRequest; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IElementMementoProvider; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IElementMementoRequest; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext; |
| import org.eclipse.ui.IMemento; |
| |
| /** |
| * @since 3.3 |
| */ |
| public abstract class ElementMementoProvider implements IElementMementoProvider { |
| |
| |
| @Override |
| public void compareElements(final IElementCompareRequest[] requests) { |
| Job job = new Job("compare element") { //$NON-NLS-1$ |
| @Override |
| protected IStatus run(IProgressMonitor monitor) { |
| for (IElementCompareRequest request : requests) { |
| try { |
| request.setEqual(isEqual(request.getElement(), request.getMemento(), request.getPresentationContext())); |
| } catch (CoreException e) { |
| request.setStatus(e.getStatus()); |
| } |
| request.done(); |
| } |
| return Status.OK_STATUS; |
| } |
| }; |
| job.setSystem(true); |
| // TODO: rule |
| job.schedule(); |
| } |
| |
| /** |
| * Returns whether the memento represents the given element. |
| * |
| * @param element the element to compare to the memento |
| * @param memento memento |
| * @param context the context the compare is in |
| * @return whether the memento represents the given element |
| */ |
| protected abstract boolean isEqual(Object element, IMemento memento, IPresentationContext context) throws CoreException; |
| |
| @Override |
| public void encodeElements(final IElementMementoRequest[] requests) { |
| Job job = new Job("encode element") { //$NON-NLS-1$ |
| @Override |
| protected IStatus run(IProgressMonitor monitor) { |
| for (IElementMementoRequest request : requests) { |
| try { |
| if (!encodeElement(request.getElement(), request.getMemento(), request.getPresentationContext())) { |
| request.cancel(); |
| } |
| } catch (CoreException e) { |
| request.setStatus(e.getStatus()); |
| } |
| request.done(); |
| } |
| return Status.OK_STATUS; |
| } |
| }; |
| job.setSystem(true); |
| // TODO: rule |
| job.schedule(); |
| } |
| |
| /** |
| * Encodes the specified element into the given memento. |
| * Returns whether the element could be encoded |
| * |
| * @param element the element to encode |
| * @param memento the memento to write to |
| * @param context presentation context |
| * @return false if cancelled/not supported |
| * @throws CoreException |
| */ |
| protected abstract boolean encodeElement(Object element, IMemento memento, IPresentationContext context) throws CoreException; |
| |
| } |