bundles/org.eclipse.team.cvs.ui/src/org/eclipse/team/internal/ccvs/ui/CVSResourceNode.java

package org.eclipse.team.internal.ccvs.ui;

/*
 * (c) Copyright IBM Corp. 2000, 2001.
 * All Rights Reserved.
 */
 
import java.util.ArrayList;

import org.eclipse.compare.ResourceNode;
import org.eclipse.compare.structuremergeviewer.IStructureComparator;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.team.core.TeamException;
import org.eclipse.team.internal.ccvs.core.resources.ICVSFile;
import org.eclipse.team.internal.ccvs.core.resources.ICVSFolder;
import org.eclipse.team.internal.ccvs.core.resources.LocalFolder;

/**
 * This class is a wrapper for a CVSResource. We use it instead of the standard
 * ResourceNode because it can more accurately get its local children taking
 * into account ignored resources, CVS/ directories, etc.
 */
public class CVSResourceNode extends ResourceNode {
	ArrayList fChildren;
	
	public CVSResourceNode(IResource resource) {
		super(resource);
	}
	
	public Object[] getChildren() {
		if (fChildren == null) {
			fChildren= new ArrayList();
			IResource resource = getResource();
			if (resource instanceof IContainer) {
				try {
					ICVSFile[] files = new LocalFolder(resource.getLocation().toFile()).getFiles();
					for (int i= 0; i < files.length; i++) {
						IResource child = getFile((IContainer)resource, files[i].getName());
						if (child.exists()) {
							IStructureComparator childNode = createChild(child);
							if (childNode != null) {
								fChildren.add(childNode);
							}
						}
					}
					ICVSFolder[] folders = new LocalFolder(resource.getLocation().toFile()).getFolders();
					for (int i= 0; i < folders.length; i++) {
						IResource child = getFolder((IContainer)resource, folders[i].getName());
						if (child.exists()) {
							IStructureComparator childNode = createChild(child);
							if (childNode != null) {
								fChildren.add(childNode);
							}
						}
					}
				} catch (TeamException e) {
					CVSUIPlugin.log(e.getStatus());
				}
			}
		}
		return fChildren.toArray();
	}
	
	private IResource getFile(IContainer container, String name) {
		if (container instanceof IProject) {
			return ((IProject)container).getFile(name);
		}
		if (container instanceof IFolder) {
			return ((IFolder)container).getFile(name);
		}
		return null;
	}
	
	private IResource getFolder(IContainer container, String name) {
		if (container instanceof IProject) {
			return ((IProject)container).getFolder(name);
		}
		if (container instanceof IFolder) {
			return ((IFolder)container).getFolder(name);
		}
		return null;
	}
	
	protected IStructureComparator createChild(IResource child) {
		return new CVSResourceNode(child);
	}
}