| /******************************************************************************* |
| * Copyright (c) 2009, 2013 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.core; |
| |
| import java.util.Arrays; |
| import java.util.Comparator; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.debug.core.RefreshUtil; |
| |
| /** |
| * Compares refresh scope attributes as the format has changed from a working |
| * set memento to an XML memento of resource paths. Avoids migrating attribute |
| * to new format until something else in the configuration changes. |
| * |
| * @since 3.6 |
| */ |
| public class RefreshScopeComparator implements Comparator<String> { |
| private static IResource[] toResources(String memento) { |
| try { |
| return RefreshUtil.toResources(memento); |
| } catch (CoreException e) { |
| return null; |
| } |
| } |
| |
| private static final Comparator<IResource> RESOURCE = Comparator.nullsFirst(Comparator.comparing(r -> r.toString())); |
| private static final Comparator<IResource[]> ARRAY = Comparator.nullsFirst((IResource[] s1, IResource[] s2) -> Arrays.compare(s1, s2, RESOURCE)); |
| private static final Comparator<String> MEMENTO = Comparator.nullsFirst(Comparator.comparing(m -> toResources(m), ARRAY)); |
| |
| @Override |
| public int compare(String o1, String o2) { |
| return MEMENTO.compare(o1, o2); |
| } |
| |
| } |