/*
 * Copyright (c) 2009, IETR/INSA of Rennes
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   * 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.
 *   * Neither the name of the IETR/INSA of Rennes nor the names of its
 *     contributors may be used to endorse or promote products derived from this
 *     software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, 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.
 */
package net.sf.orcc;

import net.sf.orcc.util.OrccUtil;

import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jdt.core.IJavaProject;

/**
 * This class defines a property tester for the "isVTL" and "isXDF" properties.
 * 
 * @author Matthieu Wipliez
 * 
 */
public class OrccPropertyTester extends PropertyTester {

	@Override
	public boolean test(Object receiver, String property, Object[] args,
			Object expectedValue) {
		if ("isVTL".equals(property)) {
			if (receiver instanceof IFolder) {
				return true;
			}
		} else if ("isXDF".equals(property)) {
			if (receiver instanceof IFile) {
				IFile file = (IFile) receiver;
				return (OrccUtil.NETWORK_SUFFIX.equals(file.getFileExtension()));
			}
		} else if ("isOrccProject".equals(property)) {
			IProject project;
			if (receiver instanceof IJavaProject) {
				project = ((IJavaProject) receiver).getProject();
			} else if (receiver instanceof IProject) {
				project = (IProject) receiver;
			} else {
				return false;
			}

			try {
				return project.exists() && project.isOpen()
						&& project.hasNature(OrccProjectNature.NATURE_ID);
			} catch (CoreException e) {
				e.printStackTrace();
			}
		}

		return false;
	}

}