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/*******************************************************************************
* 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);
}
}
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