| /******************************************************************************* |
| * Copyright (c) 2007, 2017 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.equinox.internal.p2.garbagecollector; |
| |
| import java.util.*; |
| import org.eclipse.core.runtime.NullProgressMonitor; |
| import org.eclipse.equinox.internal.p2.core.helpers.Tracing; |
| import org.eclipse.equinox.p2.metadata.IArtifactKey; |
| import org.eclipse.equinox.p2.query.*; |
| import org.eclipse.equinox.p2.repository.artifact.IArtifactRepository; |
| |
| /** |
| * Given a MarkSet, the CoreGarbageCollector removes any IArtifactDescriptors which |
| * are not mapped to be an IArtifactKey in the MarkSet. |
| */ |
| public class CoreGarbageCollector { |
| /** |
| * When set to true, information will be logged every time an artifact is removed |
| */ |
| private static boolean DEBUG = "true".equalsIgnoreCase(GarbageCollectorHelper.ID + "/debug"); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| /** |
| * Given a list of IArtifactKeys and an IArtifactRepository, removes all artifacts |
| * in aRepository that are not mapped to by an IArtifactKey in markSet |
| */ |
| public synchronized void clean(IArtifactKey[] markSet, final IArtifactRepository aRepository) { |
| Set<IArtifactKey> set = new HashSet<>(Arrays.asList(markSet)); |
| //this query will match all artifact keys that are not in the given set |
| IQuery<IArtifactKey> query = QueryUtil.createQuery(IArtifactKey.class, "unique($0)", set); //$NON-NLS-1$ |
| aRepository.executeBatch(monitor -> { |
| for (IArtifactKey key : aRepository.query(query, null)) { |
| aRepository.removeDescriptor(key, new NullProgressMonitor()); |
| if (DEBUG) { |
| Tracing.debug("Key removed:" + key); //$NON-NLS-1$ |
| } |
| } |
| }, new NullProgressMonitor()); |
| } |
| |
| } |