OAWBuilderPropertyTester.java example

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gmf-tooling-master
/**
 * Copyright (c) 2009 Borland Software Corp.
 * 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Alexander Shatalin (Borland) - initial API and implementation
 */
package org.eclipse.gmf.internal.xpand.migration.ui;

import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.core.resources.ICommand;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.gmf.internal.xpand.build.OawBuilder;
import org.eclipse.gmf.internal.xpand.migration.Activator;
import org.eclipse.jdt.core.IJavaProject;

public class OAWBuilderPropertyTester extends PropertyTester {

	private static final String HAS_OAW_BUILDER_PROPERTY = "hasOAWBuilder";

	public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
		if (HAS_OAW_BUILDER_PROPERTY.equals(property)) {
			if (receiver instanceof IJavaProject) {
				return hasOAWBuilder(((IJavaProject) receiver).getProject());
			} else if (receiver instanceof IProject) {
				return hasOAWBuilder((IProject) receiver);
			}
		}
		return false;
	}

	private boolean hasOAWBuilder(IProject project) {
		try {
			if (project.isOpen()) {
				ICommand[] buildSpecification = project.getDescription().getBuildSpec();
				for (ICommand buildCommand : buildSpecification) {
					if (OawBuilder.getBUILDER_ID().equals(buildCommand.getBuilderName())) {
						return true;
					}
				}
			}
		} catch (CoreException e) {
			Activator.logError(e);
		}
		return false;
	}

}