PathUtils.java

/**
 * This file Copyright (c) 2005-2008 Aptana, Inc. This program is
 * dual-licensed under both the Aptana Public License and the GNU General
 * Public license. You may elect to use one or the other of these licenses.
 * 
 * This program is distributed in the hope that it will be useful, but
 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
 * NONINFRINGEMENT. Redistribution, except as permitted by whichever of
 * the GPL or APL you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or modify this
 * program under the terms of the GNU General Public License,
 * Version 3, as published by the Free Software Foundation.  You should
 * have received a copy of the GNU General Public License, Version 3 along
 * with this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 * 
 * Aptana provides a special exception to allow redistribution of this file
 * with certain other free and open source software ("FOSS") code and certain additional terms
 * pursuant to Section 7 of the GPL. You may view the exception and these
 * terms on the web at http://www.aptana.com/legal/gpl/.
 * 
 * 2. For the Aptana Public License (APL), this program and the
 * accompanying materials are made available under the terms of the APL
 * v1.0 which accompanies this distribution, and is available at
 * http://www.aptana.com/legal/apl/.
 * 
 * You may view the GPL, Aptana's exception and additional terms, and the
 * APL in the file titled license.html at the root of the corresponding
 * plugin containing this source file.
 * 
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ide.core;

import java.net.URI;
import java.net.URISyntaxException;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IStorage;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;

import com.aptana.ide.core.resources.IUniformResource;

/**
 * @author Max Stepanov
 *
 */
public final class PathUtils {

	private PathUtils() {
	}
	
	/**
	 * getPath
	 *
	 * @param element
	 * @return path
	 */
	public static String getPath( Object element ) {
		if ( element instanceof IUniformResource ) {
			IUniformResource resource = (IUniformResource) element;
			IPath path = (IPath) resource.getAdapter(IPath.class);
			if (path == null) {
				IStorage storage = (IStorage) resource.getAdapter(IStorage.class);
				if (storage != null) {
					path = (IPath) storage.getAdapter(IPath.class);
				}
			}
			if ( path != null ) {
				return path.toOSString();	
			} else {
				return resource.getURI().toString();
			}			
		}
		if ( element instanceof String ) {
			try {
				element = new URI((String) element);
			} catch (URISyntaxException e) {
			}	
		}
		if ( element instanceof URI ) {
			URI uri = (URI) element;
			if ( "file".equals(uri.getScheme()) ) //$NON-NLS-1$
			{
				return uri.getSchemeSpecificPart();
			}
			return uri.toString();
		}
		return null;
	}
	
	/**
	 * findWorkspaceFile
	 *
	 * @param filePath
	 * @return IFile
	 */
	public static IFile findWorkspaceFile(String filePath) {
		IPath path = new Path(filePath);
		IResource resource = ResourcesPlugin.getWorkspace().getRoot().getFileForLocation(path);
		if ( resource instanceof IFile )
		{
			return (IFile) resource;
		}
		return null;
	}
}