| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.internal.ide.model; |
| |
| import org.eclipse.core.expressions.PropertyTester; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.mapping.ResourceMapping; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.QualifiedName; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.ui.IActionFilter; |
| import org.eclipse.ui.IResourceActionFilter; |
| import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin; |
| |
| /** |
| * Property tester for detecting the exisitance of a particular persitent |
| * property on all the projects of a ResourceMapping. |
| * |
| * @since 3.1 |
| */ |
| public class ProjectPersistentPropertyTester extends PropertyTester { |
| |
| private static final String ALLOW_UNSET_PROJECTS = "allowUnsetProjects"; //$NON-NLS-1$ |
| |
| private static final IActionFilter filter = new WorkbenchResource() { |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.internal.ide.model.WorkbenchResource#getBaseImage(org.eclipse.core.resources.IResource) |
| */ |
| protected ImageDescriptor getBaseImage(IResource resource) { |
| return null; |
| } |
| }; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object) |
| */ |
| public boolean test(Object receiver, String property, Object[] args, Object expectedValue) { |
| if (receiver instanceof ResourceMapping) { |
| if (property.equals(IResourceActionFilter.PROJECT_PERSISTENT_PROPERTY)) { |
| if(args == null) return false; |
| String persitentPropertyEntry = (String)args[0]; |
| boolean allowUnsetProjects = false; |
| if (args.length > 1) |
| allowUnsetProjects = args[1].equals(ALLOW_UNSET_PROJECTS); |
| IProject[] projects = ((ResourceMapping)receiver).getProjects(); |
| boolean atLeastOne = false; |
| for (int i = 0; i < projects.length; i++) { |
| IProject project = projects[i]; |
| if (filter.testAttribute(project, property, persitentPropertyEntry)) { |
| atLeastOne = true; |
| } else if (!allowUnsetProjects) { |
| return false; |
| } else { |
| // Check to see if the persistant property is present |
| // If it is, we fail since it must be set to somethings else |
| try { |
| if (project != null && project.isAccessible() && project.getPersistentProperty(getPropertyKey(persitentPropertyEntry)) != null) |
| return false; |
| } catch (CoreException e) { |
| final String message = "Core exception while testing project persistent property"; //$NON-NLS-1$ |
| IDEWorkbenchPlugin.log(message, |
| new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH, |
| IStatus.ERROR, message, e)); |
| // Just continue |
| } |
| } |
| } |
| return atLeastOne; |
| } |
| } else if (receiver instanceof IResource) { |
| if (property.equals(IResourceActionFilter.PROJECT_PERSISTENT_PROPERTY)) { |
| if(args == null) return false; |
| String persitentPropertyEntry = (String)args[0]; |
| IProject project = ((IResource)receiver).getProject(); |
| return filter.testAttribute(project, property, persitentPropertyEntry); |
| } |
| } |
| |
| return false; |
| } |
| |
| private QualifiedName getPropertyKey(String value) { |
| String propertyName; |
| int i = value.indexOf('='); |
| if (i != -1) { |
| propertyName = value.substring(0, i).trim(); |
| } else { |
| propertyName = value.trim(); |
| } |
| QualifiedName key; |
| int dot = propertyName.lastIndexOf('.'); |
| if (dot != -1) { |
| key = new QualifiedName(propertyName.substring(0, dot), |
| propertyName.substring(dot + 1)); |
| } else { |
| key = new QualifiedName(null, propertyName); |
| } |
| return key; |
| } |
| |
| } |