Copyright (c) 2003, 2006 BBDO Detroit 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:
    Thierry Lach (thierry.lach@bbdodetroit.com) - initial API and implementation for bug 40502
    IBM Corporation - added eclipse.running property, bug 65655
    Ericsson AB, Hamdan Msheik - Bug 389564
    Ericsson AB, Julian Enoch - Bug 389564
/*******************************************************************************
 * Copyright (c) 2003, 2006 BBDO Detroit 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:
 *     Thierry Lach (thierry.lach@bbdodetroit.com) - initial API and implementation for bug 40502
 *     IBM Corporation - added eclipse.running property, bug 65655
 *     Ericsson AB, Hamdan Msheik - Bug 389564
 *     Ericsson AB, Julian Enoch - Bug 389564
 *******************************************************************************/
package org.eclipse.ant.internal.core;

import java.net.URL;

import org.eclipse.ant.core.AntCorePlugin;
import org.eclipse.ant.core.IAntPropertyValueProvider;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.URIUtil;

Dynamic provider for Ant properties.
Provides the dynamic values for the following Ant properties:

eclipse.home - set to the Eclipse installation directory

 *

eclipse.running - set (to "true") when Eclipse is running

Since:
3.0/**
 * Dynamic provider for Ant properties.
 * 
 * Provides the dynamic values for the following Ant properties:
 * 
 * <ul>
 * <li><code>eclipse.home</code> - set to the Eclipse installation directory</li>
 * </ul>
 * *
 * <ul>
 * <li><code>eclipse.running</code> - set (to "true") when Eclipse is running</li>
 * </ul>
 * 
 * @since 3.0
 */
public class AntPropertyValueProvider implements IAntPropertyValueProvider {
	
Returns the dynamic property values for Ant properties.
Params:
propertyName – 
           The name of the property to resolve the value for
See Also:
IAntPropertyValueProvider.getAntPropertyValue(String)
Returns:
The resolved value for the property/**
	 * Returns the dynamic property values for Ant properties.
	 * 
	 * @param propertyName
	 *            The name of the property to resolve the value for
	 * @return The resolved value for the property
	 * @see org.eclipse.ant.core.IAntPropertyValueProvider#getAntPropertyValue(String)
	 */
	@Override
	public String getAntPropertyValue(String propertyName) {
		String value = null;
		if ("eclipse.running".equals(propertyName)) { //$NON-NLS-1$
			return "true"; //$NON-NLS-1$
		} else if ("eclipse.home".equals(propertyName)) { //$NON-NLS-1$
			try {
				URL fileURL = FileLocator.toFileURL(new URL("platform:/base/")); //$NON-NLS-1$
				value = (URIUtil.toFile(URIUtil.toURI(fileURL))).getAbsolutePath();
				if (value.endsWith("/")) { //$NON-NLS-1$
					value = value.substring(0, value.length() - 1);
				}
			}
			catch (Exception e) {
				AntCorePlugin.log(e);
			}
		}
		return value;
	}
}