| /******************************************************************************* |
| * Copyright (c) 2003, 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.jst.j2ee.internal.validation; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jem.workbench.utility.JemProjectUtilities; |
| import org.eclipse.jst.j2ee.internal.project.J2EEProjectUtilities; |
| import org.eclipse.wst.common.componentcore.ComponentCore; |
| import org.eclipse.wst.common.componentcore.resources.IVirtualComponent; |
| import org.eclipse.wst.validation.internal.IProjectValidationHelper; |
| |
| public class ProjectValidationHelper implements IProjectValidationHelper { |
| |
| private static IContainer[] EMPTY_RESULT = new IContainer[] {}; |
| private static ProjectValidationHelper INSTANCE; |
| private IContainer[] outputs; |
| private IContainer[] sources; |
| |
| public static ProjectValidationHelper getInstance(){ |
| if (INSTANCE == null) |
| INSTANCE = new ProjectValidationHelper(); |
| return INSTANCE; |
| } |
| public void disposeInstance(){ |
| INSTANCE = null; |
| } |
| private IContainer[] getCachedOutputContainers(IProject project) { |
| if (outputs != null) |
| return outputs; |
| if (project == null || JemProjectUtilities.getJavaProject(project)==null) { |
| outputs = EMPTY_RESULT; |
| return EMPTY_RESULT; |
| } |
| IVirtualComponent comp = ComponentCore.createComponent(project); |
| if (comp == null || !comp.exists()) { |
| outputs = EMPTY_RESULT; |
| return EMPTY_RESULT; |
| } |
| outputs = J2EEProjectUtilities.getOutputContainers(project); |
| return outputs; |
| |
| } |
| public IContainer[] getOutputContainers(IProject project) { |
| return getInstance().getCachedOutputContainers(project); |
| } |
| |
| private IContainer[] getCachedSourceContainers(IProject project) { |
| if (sources != null) |
| return sources; |
| if (project == null || JemProjectUtilities.getJavaProject(project)==null) { |
| sources = EMPTY_RESULT; |
| return EMPTY_RESULT; |
| } |
| IVirtualComponent comp = ComponentCore.createComponent(project); |
| if (comp == null || !comp.exists()) { |
| sources = EMPTY_RESULT; |
| return EMPTY_RESULT; |
| } |
| IPackageFragmentRoot[] roots = J2EEProjectUtilities.getSourceContainers(project); |
| List result = new ArrayList(); |
| for (int i=0; i<roots.length; i++) { |
| if (roots[i].getResource() != null && roots[i].getResource() instanceof IContainer) |
| result.add(roots[i].getResource()); |
| } |
| sources = (IContainer[]) result.toArray(new IContainer[result.size()]); |
| return sources; |
| |
| } |
| public IContainer[] getSourceContainers(IProject project) { |
| return getInstance().getCachedSourceContainers(project); |
| } |
| |
| } |