Copyright (c) 2008, 2014 Freescale Semiconductor and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    Freescale Semiconductor - initial API and implementation
    IBM Corporation - ongoing development
/*******************************************************************************
 * Copyright (c) 2008, 2014 Freescale Semiconductor and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     Freescale Semiconductor - initial API and implementation
 *     IBM Corporation - ongoing development
 *******************************************************************************/
package org.eclipse.core.internal.resources.projectvariables;

import java.net.URI;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.variableresolvers.PathVariableResolver;

Returns the location of the parent resource
/**
 * Returns the location of the parent resource
 */
public class WorkspaceParentLocationVariableResolver extends PathVariableResolver {

	public static String NAME = "PARENT_LOC"; //$NON-NLS-1$

	public WorkspaceParentLocationVariableResolver() {
		// nothing
	}

	@Override
	public String[] getVariableNames(String variable, IResource resource) {
		return new String[] {NAME};
	}

	@Override
	public String getValue(String variable, IResource resource) {
		IContainer parent = resource.getParent();
		if (parent != null) {
			URI locationURI = parent.getLocationURI();
			if (locationURI != null)
				return locationURI.toASCIIString();
		}
		return null;
	}
}