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/*******************************************************************************
* Copyright (c) 2000, 2012 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.team.internal.ccvs.ui.model;
import java.lang.reflect.InvocationTargetException;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.osgi.util.NLS;
import org.eclipse.team.core.TeamException;
import org.eclipse.team.internal.ccvs.core.*;
import org.eclipse.team.internal.ccvs.ui.*;
import org.eclipse.team.internal.ccvs.ui.Policy;
import org.eclipse.team.internal.ccvs.ui.operations.FetchMembersOperation;
import org.eclipse.team.internal.ccvs.ui.repo.RepositoryRoot;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.progress.IDeferredWorkbenchAdapter;
import org.eclipse.ui.progress.IElementCollector;
public class RemoteFolderElement extends RemoteResourceElement implements IDeferredWorkbenchAdapter {
/**
* Overridden to append the version name to remote folders which
* have version tags and are top-level folders.
*/
public String getLabel(Object o) {
if (!(o instanceof ICVSRemoteFolder))
return null;
ICVSRemoteFolder folder = (ICVSRemoteFolder) o;
CVSTag tag = folder.getTag();
if (tag != null && tag.getType() != CVSTag.HEAD) {
if (folder.getRemoteParent() == null) {
return NLS.bind(CVSUIMessages.RemoteFolderElement_nameAndTag, new String[] { folder.getName(), tag.getName() });
}
}
return folder.getName();
}
public ImageDescriptor getImageDescriptor(Object object) {
if (!(object instanceof ICVSRemoteFolder))
return null;
ICVSRemoteFolder folder = (ICVSRemoteFolder) object;
if (folder.isDefinedModule()) {
return CVSUIPlugin.getPlugin().getImageDescriptor(ICVSUIConstants.IMG_MODULE);
}
return PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_OBJ_FOLDER);
}
public Object[] fetchChildren(Object o, IProgressMonitor monitor) throws TeamException {
if (!(o instanceof ICVSRemoteFolder))
return new Object[0];
ICVSRemoteFolder remoteFolder = (ICVSRemoteFolder) o;
if (remoteFolder.getTag() != null
&& remoteFolder.getTag().getType() == CVSTag.BRANCH) {
monitor = Policy.monitorFor(monitor);
monitor.beginTask(NLS.bind(
CVSUIMessages.RemoteFolderElement_fetchingRemoteChildren,
new String[] { getLabel(remoteFolder) }), 100);
try {
ICVSRemoteResource[] cachedFolders = CVSUIPlugin
.getPlugin()
.getRepositoryManager()
.getFoldersForTag(remoteFolder.getRepository(),
remoteFolder.getTag(),
Policy.subMonitorFor(monitor, 50));
if (!hasCachedParent(cachedFolders, remoteFolder)) {
return getCachedChildren(cachedFolders, remoteFolder,
Policy.subMonitorFor(monitor, 50));
}
return remoteFolder.members(Policy.subMonitorFor(monitor, 50));
} finally {
monitor.done();
}
}
return remoteFolder.members(monitor);
}
public void fetchDeferredChildren(Object o, IElementCollector collector, IProgressMonitor monitor) {
// If it's not a folder, return an empty array
if (!(o instanceof ICVSRemoteFolder)) {
collector.add(new Object[0], monitor);
}
try {
monitor = Policy.monitorFor(monitor);
ICVSRemoteFolder remoteFolder = (ICVSRemoteFolder) o;
if (remoteFolder.getTag() != null
&& remoteFolder.getTag().getType() == CVSTag.BRANCH) {
monitor.beginTask(
NLS.bind(
CVSUIMessages.RemoteFolderElement_fetchingRemoteChildren,
new String[] { getLabel(o) }), 200);
ICVSRemoteResource[] cachedFolders = CVSUIPlugin
.getPlugin()
.getRepositoryManager()
.getFoldersForTag(remoteFolder.getRepository(),
remoteFolder.getTag(),
Policy.subMonitorFor(monitor, 100));
if (!hasCachedParent(cachedFolders, remoteFolder)) {
collector.add(
getCachedChildren(cachedFolders, remoteFolder,
Policy.subMonitorFor(monitor, 90)), Policy
.subMonitorFor(monitor, 10));
return;
}
} else {
monitor.beginTask(
NLS.bind(
CVSUIMessages.RemoteFolderElement_fetchingRemoteChildren,
new String[] { getLabel(o) }), 100);
}
FetchMembersOperation operation = new FetchMembersOperation(null, (ICVSRemoteFolder)o, collector);
operation.run(Policy.subMonitorFor(monitor, 100));
} catch (InvocationTargetException e) {
handle(collector, e);
} catch (InterruptedException e) {
// Cancelled by the user;
} catch (CVSException e) {
handle(collector, e);
} finally {
monitor.done();
}
}
private boolean hasCachedParent(ICVSRemoteResource[] cachedFolders,
ICVSRemoteFolder remoteFolder) {
for (int i = 0; i < cachedFolders.length; i++) {
if (remoteFolder.getRepositoryRelativePath().startsWith(
cachedFolders[i].getRepositoryRelativePath())) {
return true;
}
}
return false;
}
private ICVSRemoteResource[] getCachedChildren(
ICVSRemoteResource[] cachedFolders, ICVSRemoteFolder remoteFolder,
IProgressMonitor monitor) {
Set remoteResources = new HashSet();
monitor = Policy.monitorFor(monitor);
monitor.beginTask(NLS.bind(
CVSUIMessages.RemoteFolderElement_fetchingRemoteChildren,
new String[] { getLabel(remoteFolder) }), cachedFolders.length);
try {
RepositoryRoot repositoryRoot = CVSUIPlugin.getPlugin()
.getRepositoryManager()
.getRepositoryRootFor(remoteFolder.getRepository());
for (int i = 0; i < cachedFolders.length; i++) {
if (cachedFolders[i].getRepositoryRelativePath().startsWith(
remoteFolder.getRepositoryRelativePath())) {
String path = new Path(
cachedFolders[i].getRepositoryRelativePath())
.uptoSegment(
new Path(remoteFolder
.getRepositoryRelativePath())
.segmentCount() + 1).toString();
remoteResources.add(repositoryRoot.getRemoteFolder(path,
remoteFolder.getTag(),
Policy.subMonitorFor(monitor, 1)));
}
}
return (ICVSRemoteResource[]) remoteResources
.toArray(new ICVSRemoteResource[remoteResources.size()]);
} finally {
monitor.done();
}
}
public ISchedulingRule getRule(Object element) {
ICVSRepositoryLocation location = getRepositoryLocation(element);
return new RepositoryLocationSchedulingRule(location);
}
private ICVSRepositoryLocation getRepositoryLocation(Object o) {
if (!(o instanceof ICVSRemoteFolder))
return null;
return ((ICVSRemoteFolder)o).getRepository();
}
public boolean isContainer() {
return true;
}
}
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