| /******************************************************************************* |
| * Copyright (c) 2003, 2006 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.navigator.internal; |
| |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerSorter; |
| import org.eclipse.jst.j2ee.common.internal.util.CommonUtil; |
| import org.eclipse.jst.j2ee.ejb.EnterpriseBean; |
| |
| |
| public class J2EEViewerSorter extends ViewerSorter { |
| |
| /** |
| * Constructor for J2EEViewerSorter. |
| */ |
| public J2EEViewerSorter() { |
| super(); |
| } |
| |
| private static final String WST = "org.eclipse.wst"; //$NON-NLS-1$ |
| private static final String JST = "org.eclipse.jst"; //$NON-NLS-1$ |
| |
| /** |
| * @see ViewerSorter#compare(Viewer, Object, Object) |
| */ |
| public int compare(Viewer viewer, Object e1, Object e2) { |
| // Check to see if each object is a base WST or JST core contribution |
| boolean e1_isCore = isCore(e1); |
| boolean e2_isCore = isCore(e2); |
| // If both elements are from the same category, do default comparison |
| if (e1_isCore == e2_isCore) |
| return super.compare(viewer, e1, e2); |
| // If e1 is core, but not e2, e1 is less than e2 |
| else if (e1_isCore) |
| return -1; |
| // If e1 is not core, but e2 is, e1 is greater than e2 |
| else |
| return 1; |
| } |
| |
| /** |
| * Any contribution from the base JST or WST packages is considered core, everything else is |
| * an extension |
| * @param element |
| * @return boolean is Contribution Core? |
| */ |
| private boolean isCore(Object element) { |
| if (element != null) { |
| Class clazz = element.getClass(); |
| if (clazz != null) { |
| Package pack = clazz.getPackage(); |
| if (pack != null) { |
| String packageName = pack.getName(); |
| return packageName!=null && (packageName.startsWith(WST) || packageName.startsWith(JST)); |
| } |
| } |
| } |
| return false; |
| } |
| |
| protected boolean isEnterpriseBean(Object o) { |
| return o instanceof EnterpriseBean; |
| } |
| |
| protected boolean isDeploymentDescriptorRoot(Object o) { |
| return CommonUtil.isDeploymentDescriptorRoot(o); |
| } |
| |
| protected boolean shouldSort(Object e1, Object e2) { |
| return (isDeploymentDescriptorRoot(e1) && isDeploymentDescriptorRoot(e2)) || (isEnterpriseBean(e1) && isEnterpriseBean(e2)) || ((e1 instanceof IFile) && (e2 instanceof IFile)); |
| } |
| |
| |
| } |