| /******************************************************************************* |
| * Copyright (c) 2000, 2018 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.team.internal.ccvs.core; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IResourceStatus; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.team.core.RepositoryProvider; |
| import org.eclipse.team.core.TeamException; |
| import org.eclipse.team.core.diff.IDiff; |
| import org.eclipse.team.core.subscribers.Subscriber; |
| import org.eclipse.team.core.synchronize.SyncInfo; |
| import org.eclipse.team.core.variants.*; |
| import org.eclipse.team.internal.ccvs.core.filehistory.CVSResourceVariantFileRevision; |
| import org.eclipse.team.internal.ccvs.core.resources.CVSWorkspaceRoot; |
| import org.eclipse.team.internal.core.mapping.ResourceVariantFileRevision; |
| import org.eclipse.team.internal.core.mapping.SyncInfoToDiffConverter; |
| |
| /** |
| * This class provides common functionality for three way synchronizing |
| * for CVS. |
| */ |
| public abstract class CVSSyncTreeSubscriber extends ResourceVariantTreeSubscriber implements IAdaptable { |
| |
| public static final String SYNC_KEY_QUALIFIER = "org.eclipse.team.cvs"; //$NON-NLS-1$ |
| |
| private IResourceVariantComparator comparisonCriteria; |
| |
| private QualifiedName id; |
| private String name; |
| private SyncInfoToDiffConverter converter = new CVSSyncInfoToDiffConverter(); |
| |
| public class CVSSyncInfoToDiffConverter extends SyncInfoToDiffConverter { |
| protected ResourceVariantFileRevision asFileRevision(IResourceVariant variant) { |
| return new CVSResourceVariantFileRevision(variant); |
| } |
| } |
| |
| CVSSyncTreeSubscriber(QualifiedName id, String name) { |
| this.id = id; |
| this.name = name; |
| this.comparisonCriteria = new CVSRevisionNumberCompareCriteria(isThreeWay()); |
| } |
| |
| /* |
| * @see org.eclipse.team.core.sync.ISyncTreeSubscriber#getId() |
| */ |
| public QualifiedName getId() { |
| return id; |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public SyncInfo getSyncInfo(IResource resource) throws TeamException { |
| if (!isSupervised(resource)) return null; |
| if(resource.getType() == IResource.FILE || !isThreeWay()) { |
| return super.getSyncInfo(resource); |
| } else { |
| // In CVS, folders do not have a base. Hence, the remote is used as the base. |
| IResourceVariant remoteResource = getRemoteTree().getResourceVariant(resource); |
| return getSyncInfo(resource, remoteResource, remoteResource); |
| } |
| } |
| |
| @Override |
| public boolean isSupervised(IResource resource) throws TeamException { |
| try { |
| RepositoryProvider provider = RepositoryProvider.getProvider(resource.getProject(), CVSProviderPlugin.getTypeId()); |
| if (provider == null) return false; |
| // TODO: what happens for resources that don't exist? |
| // TODO: is it proper to use ignored here? |
| ICVSResource cvsThing = CVSWorkspaceRoot.getCVSResourceFor(resource); |
| if (cvsThing.isIgnored()) { |
| // An ignored resource could have an incoming addition (conflict) |
| return getRemoteTree().hasResourceVariant(resource); |
| } |
| return true; |
| } catch (TeamException e) { |
| // If there is no resource in core this means there is no local and no remote |
| // so the resource is not supervised. |
| if (e.getStatus().getCode() == IResourceStatus.RESOURCE_NOT_FOUND || !resource.getProject().isAccessible()) { |
| return false; |
| } |
| throw e; |
| } |
| } |
| |
| @Override |
| public IResourceVariantComparator getResourceComparator() { |
| return comparisonCriteria; |
| } |
| |
| @Override |
| protected SyncInfo getSyncInfo(IResource local, IResourceVariant base, IResourceVariant remote) throws TeamException { |
| CVSSyncInfo info = new CVSSyncInfo(local, base, remote, this); |
| info.init(); |
| return info; |
| } |
| |
| /* |
| * Indicate whether file contents should be cached on a refresh |
| */ |
| protected boolean getCacheFileContentsHint() { |
| return false; |
| } |
| |
| /* |
| * Indicate whether the subscriber is two-way or three-way |
| */ |
| protected boolean isThreeWay() { |
| return true; |
| } |
| |
| protected boolean rootsEqual(Subscriber other) { |
| Set<IResource> roots1 = new HashSet<>(Arrays.asList(other.roots())); |
| Set<IResource> roots2 = new HashSet<>(Arrays.asList(roots())); |
| if(roots1.size() != roots2.size()) return false; |
| return roots2.containsAll(roots1); |
| } |
| |
| |
| public IDiff getDiff(IResource resource) throws CoreException { |
| SyncInfo info = getSyncInfo(resource); |
| if (info == null || info.getKind() == SyncInfo.IN_SYNC) |
| return null; |
| return converter.getDeltaFor(info); |
| } |
| public <T> T getAdapter(Class<T> adapter) { |
| if (adapter == SyncInfoToDiffConverter.class) { |
| return adapter.cast(converter); |
| } |
| return Platform.getAdapterManager().getAdapter(this, adapter); |
| } |
| |
| } |