| /******************************************************************************* |
| * Copyright (c) 2007 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.ui.internal.intro.universal.contentdetect; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.IExtension; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.ui.intro.IntroContentDetector; |
| |
| public class ContentDetector extends IntroContentDetector { |
| |
| private static Set<String> newContributors; |
| private static boolean detectorCalled = false; |
| |
| public ContentDetector() { |
| } |
| |
| @Override |
| public boolean isNewContentAvailable() { |
| try { |
| detectorCalled = true; |
| // If we have previously found new content no need to recompute |
| if (newContributors != null && !newContributors.isEmpty()) { |
| return true; |
| } |
| IExtension[] extensions = Platform |
| .getExtensionRegistry() |
| .getExtensionPoint("org.eclipse.ui.intro.configExtension").getExtensions(); //$NON-NLS-1$ |
| int numIntroExtensions = extensions.length; |
| |
| ContentDetectHelper helper = new ContentDetectHelper(); |
| int previous = helper.getExtensionCount(); |
| if (numIntroExtensions != previous) { |
| helper.saveExtensionCount(numIntroExtensions); |
| Set<String> contributors = new HashSet<>(); |
| for (int i = 0; i < extensions.length; i++) { |
| contributors.add(extensions[i].getContributor().getName()); |
| } |
| if (numIntroExtensions > previous && previous != ContentDetectHelper.NO_STATE) { |
| Set<String> previousContributors = helper.getContributors(); |
| newContributors = helper.findNewContributors(contributors, previousContributors); |
| helper.saveContributors(contributors); |
| return true; |
| } |
| helper.saveContributors(contributors); |
| } |
| } catch (Exception e) { |
| return false; |
| } |
| newContributors = new HashSet<>(); |
| return false; |
| } |
| |
| /** |
| * @return The set of the ids of config extensions which are new since the last time |
| * intro was opened. May be null if there are no contributors. |
| */ |
| public static Set<String> getNewContributors() { |
| if (!detectorCalled) { |
| detectorCalled = true; |
| new ContentDetector().isNewContentAvailable(); |
| } |
| return newContributors; |
| } |
| |
| /** |
| * Test to see if this contribution was newly installed |
| * @param contributionId |
| * @return |
| */ |
| public static boolean isNew(String contributionId) { |
| if (!detectorCalled) { |
| detectorCalled = true; |
| new ContentDetector().isNewContentAvailable(); |
| } |
| return newContributors != null && newContributors.contains(contributionId); |
| } |
| |
| } |