Copyright (c) 2005, 2014 IBM Corporation 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:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2005, 2014 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.core.internal.propertytester;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.mapping.ResourceMapping;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.QualifiedName;

A property tester for various properties of resource mappings
Since:
3.2/**
 * A property tester for various properties of resource mappings
 *
 * @since 3.2
 */
public class ResourceMappingPropertyTester extends ResourcePropertyTester {
	@Override
	public boolean test(Object receiver, String method, Object[] args, Object expectedValue) {
		if (!(receiver instanceof ResourceMapping))
			return false;
		if (!method.equals(PROJECT_PERSISTENT_PROPERTY))
			return false;
		//Note: we currently say the test is satisfied if any project associated
		//with the mapping satisfies the test.
		IProject[] projects = ((ResourceMapping) receiver).getProjects();
		if (projects.length == 0)
			return false;
		String propertyName;
		String expectedVal;
		switch (args.length) {
			case 0:
				propertyName = toString(expectedValue);
				expectedVal = null;//any value will do
				break;
			case 1:
				propertyName = toString(args[0]);
				expectedVal = null;//any value will do
				break;
			default:
				propertyName = toString(args[0]);
				expectedVal = toString(args[1]);
				break;
		}
		QualifiedName key = toQualifedName(propertyName);
		boolean found = false;
		for (IProject project : projects) {
			try {
				Object actualVal = project.getPersistentProperty(key);
				//the value is not set, so keep looking on other projects
				if (actualVal == null)
					continue;
				//record that we have found at least one value
				found = true;
				//expected value of null means we expect *any* value, rather than expecting no value
				if (expectedVal == null)
					continue;
				//if the value we find does not match, then the property is not satisfied
				if (!expectedVal.equals(actualVal.toString()))
					return false;
			} catch (CoreException e) {
				// ignore
			}
		}
		//if any projects had the property set, the condition is satisfied
		return found;
	}
}