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/*******************************************************************************
* Copyright (c) 2000, 2006 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 org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.team.core.TeamException;
import org.eclipse.team.internal.ccvs.core.*;
import org.eclipse.team.internal.ccvs.ui.*;
import org.eclipse.ui.model.IWorkbenchAdapter;
import org.eclipse.ui.progress.IDeferredWorkbenchAdapter;
import org.eclipse.ui.progress.IElementCollector;
public class VersionCategory extends CVSModelElement implements IAdaptable,
IDeferredWorkbenchAdapter {
private ICVSRepositoryLocation repository;
/**
* ProjectVersionsCategory constructor.
*/
public VersionCategory(ICVSRepositoryLocation repo) {
super();
this.repository = repo;
}
/**
* Returns an object which is an instance of the given class associated with
* this object. Returns <code>null</code> if no such object can be found.
*/
public Object getAdapter(Class adapter) {
if (adapter == IWorkbenchAdapter.class)
return this;
if (adapter == IDeferredWorkbenchAdapter.class)
return this;
return null;
}
/**
* Returns the children of this object. When this object is displayed in a
* tree, the returned objects will be this element's children. Returns an
* empty enumeration if this object has no children.
*/
public Object[] fetchChildren(Object o, IProgressMonitor monitor)
throws TeamException {
if (CVSUIPlugin.getPlugin().getRepositoryManager()
.isDisplayingProjectVersions(repository)) {
return getProjectVersionChildren(o, monitor);
} else {
return getVersionTagChildren(o, monitor);
}
}
/*
* Return the children as a list of versions whose children are projects
*/
private Object[] getVersionTagChildren(Object o, IProgressMonitor monitor)
throws CVSException {
CVSTag[] tags = CVSUIPlugin.getPlugin().getRepositoryManager()
.getKnownTags(repository, getWorkingSet(), CVSTag.VERSION, monitor);
CVSTagElement[] versionElements = new CVSTagElement[tags.length];
for (int i = 0; i < tags.length; i++) {
versionElements[i] = new CVSTagElement(tags[i], repository);
}
return versionElements;
}
/*
* Return the children as a list of projects whose children ar project
* versions
*/
private Object[] getProjectVersionChildren(Object o,
IProgressMonitor monitor) throws TeamException {
ICVSRemoteResource[] resources = CVSUIPlugin.getPlugin()
.getRepositoryManager().getFoldersForTag(repository,
CVSTag.DEFAULT, monitor);
if (getWorkingSet() != null)
resources = CVSUIPlugin.getPlugin().getRepositoryManager()
.filterResources(getWorkingSet(), resources);
Object[] modules = new Object[resources.length];
for (int i = 0; i < resources.length; i++) {
modules[i] = new RemoteModule((ICVSRemoteFolder) resources[i],
VersionCategory.this);
}
return modules;
}
/**
* Returns an image descriptor to be used for displaying an object in the
* workbench. Returns null if there is no appropriate image.
*
* @param object The object to get an image descriptor for.
*/
public ImageDescriptor getImageDescriptor(Object object) {
return CVSUIPlugin.getPlugin().getImageDescriptor(
ICVSUIConstants.IMG_VERSIONS_CATEGORY);
}
/**
* Returns the name of this element. This will typically be used to assign a
* label to this object when displayed in the UI. Returns an empty string if
* there is no appropriate name for this object.
*
* @param object The object to get a label for.
*/
public String getLabel(Object o) {
return CVSUIMessages.VersionCategory_Versions_1;
}
/**
* Returns the logical parent of the given object in its tree. Returns null
* if there is no parent, or if this object doesn't belong to a tree.
*
* @param object The object to get the parent for.
*/
public Object getParent(Object o) {
return repository;
}
/**
* Return the repository the given element belongs to.
*/
public ICVSRepositoryLocation getRepository(Object o) {
return repository;
}
public void fetchDeferredChildren(Object o, IElementCollector collector,
IProgressMonitor monitor) {
try {
collector.add(fetchChildren(o, monitor), monitor);
} catch (TeamException e) {
handle(collector, e);
}
}
public boolean isContainer() {
return true;
}
public ISchedulingRule getRule(Object element) {
return new RepositoryLocationSchedulingRule(repository);
}
}
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