| /******************************************************************************* |
| * Copyright (c) 2003, 2004 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.navigator.resources.expressions; |
| |
| import org.eclipse.core.expressions.IPropertyTester; |
| import org.eclipse.core.expressions.PropertyTester; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IAdaptable; |
| |
| /** |
| * Tests the following properties for IResources: |
| * |
| * <p> |
| * <ul> |
| * <li><i>projectNature</i>: Determines if the receiver is an accessible IProject which |
| * has as the given value as one of its natures.</li> |
| * </ul> |
| * </p> |
| * |
| * @since 3.2 |
| * |
| */ |
| public class ResourcePropertyTester extends PropertyTester implements |
| IPropertyTester { |
| |
| static class Properties { |
| |
| public static final int INVALID_PROPERTY = -1; |
| |
| public static final String PROJECT_NATURE_LITERAL = "projectNature"; //$NON-NLS-1$ |
| |
| public static final int PROJECT_NATURE = 0; |
| |
| public static int getValue(String aPropertyLiteral) { |
| if (PROJECT_NATURE_LITERAL.equals(aPropertyLiteral)) |
| return PROJECT_NATURE; |
| return INVALID_PROPERTY; |
| } |
| } |
| |
| public boolean test(Object receiver, String property, Object[] args, |
| Object expectedValue) { |
| if (receiver instanceof IAdaptable) { |
| IResource resource = (IResource) ((IAdaptable) receiver) |
| .getAdapter(IResource.class); |
| switch (Properties.getValue(property)) { |
| case Properties.PROJECT_NATURE: |
| |
| if (resource != null && resource.getType() == IResource.PROJECT) { |
| IProject project = ((IProject) resource); |
| try { |
| return project.isAccessible() |
| && project.hasNature((String) expectedValue); |
| } catch (CoreException e) { |
| return false; |
| } |
| } |
| break; |
| } |
| |
| } |
| return false; |
| } |
| |
| } |