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.URISyntaxException;
import java.net.URL;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.variableresolvers.PathVariableResolver;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.URIUtil;

ECLIPSE_HOME project variable, pointing to the location of the eclipse install directory.
/**
 * ECLIPSE_HOME project variable, pointing to the location of the eclipse install directory.
 *
 */
public class EclipseHomeProjectVariable extends PathVariableResolver {

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

	public EclipseHomeProjectVariable() {
		// nothing to do.
	}

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

	@Override
	public String getValue(String variable, IResource resource) {
		URL installURL = Platform.getInstallLocation().getURL();
		try {
			return URIUtil.toURI(installURL).toASCIIString();
		} catch (URISyntaxException e) {
			return null;
		}
	}
}