SecondLevelTagContentProvider.java

/* ====================================================================
 * 
 * The ObjectStyle Group Software License, Version 1.0 
 *
 * Copyright (c) 2007 The ObjectStyle Group 
 * and individual authors of the software.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:  
 *       "This product includes software developed by the 
 *        ObjectStyle Group (http://objectstyle.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "ObjectStyle Group" and "Cayenne" 
 *    must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written 
 *    permission, please contact andrus@objectstyle.org.
 *
 * 5. Products derived from this software may not be called "ObjectStyle"
 *    nor may "ObjectStyle" appear in their names without prior written
 *    permission of the ObjectStyle Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the ObjectStyle Group.  For more
 * information on the ObjectStyle Group, please see
 * <http://objectstyle.org/>.
 *
 */
package org.objectstyle.wolips.jdt.ui.tags;

import java.io.InputStream;
import java.util.ArrayList;

import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;

public class SecondLevelTagContentProvider implements ITaggedComponentsContentProvider {

	public Tag tag;

	public Tag parentTag;

	public TaggedComponent[] taggedComponents;

	public IFolder[] componentFolder;

	public SecondLevelTagContentProvider(Tag tag, Tag parentTag) {
		super();
		this.tag = tag;
		this.parentTag = parentTag;
	}

	public Object[] getChildren() {
		if (taggedComponents == null) {
			Tag[] tags = new Tag[] { tag, parentTag };
			taggedComponents = tag.tagLib.getComponents(tags);
		}
		if (componentFolder == null) {
			componentFolder = this.find(new NullProgressMonitor());
		}
		return componentFolder;
	}

	public boolean hasChildren() {
		if (taggedComponents == null) {
			Tag[] tags = new Tag[] { tag, parentTag };
			taggedComponents = tag.tagLib.getComponents(tags);
		}
		return taggedComponents.length > 0;
	}

	public InputStream getContents() throws CoreException {
		return null;
	}

	public IPath getFullPath() {
		return null;
	}

	public String getName() {
		return tag.name;
	}

	public boolean isReadOnly() {
		return false;
	}

	public Object getAdapter(Class adapter) {
		return null;
	}

	protected IFolder[] find(IProgressMonitor monitor) {
		ArrayList<IFolder> folder = new ArrayList<IFolder>();
		try {
			this.find(tag.tagLib.project, folder, monitor);
		} catch (CoreException e) {
			e.printStackTrace();
		}
		return folder.toArray(new IFolder[folder.size()]);
	}

	private void find(IResource resource, ArrayList<IFolder> folder, IProgressMonitor monitor) throws CoreException {
		if (resource.isDerived()) {
			return;
		}
		if (resource.getType() == IResource.FILE) {
			return;
		}
		IResource[] members = null;
		if (resource.getType() == IResource.FOLDER) {
			if (resource.getFileExtension() != null && "wo".equals(resource.getFileExtension())) {
				for (int i = 0; i < taggedComponents.length; i++) {
					TaggedComponent taggedComponent = taggedComponents[i];
					String folderName = taggedComponent.name + ".wo";
					if (folderName.equals(resource.getName())) {
						folder.add((IFolder) resource);
						return;
					}
				}
				return;
			}
			members = ((IFolder) resource).members();
		}
		if (resource.getType() == IResource.PROJECT)
			members = ((IProject) resource).members();
		if (members != null) {
			for (int i = 0; i < members.length; i++) {
				this.find(members[i], folder, monitor);
			}
		}
	}

}