| /******************************************************************************* |
| * Copyright (c) 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.wst.server.ui.internal.viewers; |
| |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerSorter; |
| import org.eclipse.wst.server.core.IRuntimeType; |
| import org.eclipse.wst.server.core.IServerType; |
| /** |
| * Class used to sort categories, runtime types, and server types in the |
| * New wizards. |
| */ |
| public class DefaultViewerSorter extends ViewerSorter { |
| /** |
| * @see ViewerSorter#compare(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| public int compare(Viewer viewer, Object o1, Object o2) { |
| if (o1 instanceof AbstractTreeContentProvider.TreeElement) |
| o1 = ((AbstractTreeContentProvider.TreeElement) o1).text; |
| |
| if (o2 instanceof AbstractTreeContentProvider.TreeElement) |
| o2 = ((AbstractTreeContentProvider.TreeElement) o2).text; |
| |
| // filter out strings |
| if (o1 instanceof String && o2 instanceof String) |
| return compareCategories((String) o1, (String) o2); |
| if (o1 instanceof String) |
| return -1; |
| if (o2 instanceof String) |
| return 1; |
| |
| if (o1 instanceof IRuntimeType && o2 instanceof IRuntimeType) |
| return compareRuntimeTypes((IRuntimeType) o1, (IRuntimeType) o2); |
| |
| if (o1 instanceof IServerType && o2 instanceof IServerType) |
| return compareServerTypes((IServerType) o1, (IServerType) o2); |
| |
| return 0; |
| } |
| |
| /** |
| * Sort two category names. |
| * |
| * @param s1 the first category |
| * @param s2 the second category |
| * @return a negative number if the first element is less than the |
| * second element; the value <code>0</code> if the first element is |
| * equal to the second element; and a positive number if the first |
| * element is greater than the second element |
| */ |
| protected int compareCategories(String s1, String s2) { |
| try { |
| Version v1 = Version.parseVersion(s1); |
| Version v2 = Version.parseVersion(s2); |
| |
| return Version.compare(v1, v2); |
| } catch (NumberFormatException nfe) { |
| // ignore |
| } |
| |
| return s1.compareTo(s2); |
| } |
| |
| /** |
| * Sort two runtime types. |
| * |
| * @param r1 the first runtime type |
| * @param r2 the second runtime type |
| * @return a negative number if the first element is less than the |
| * second element; the value <code>0</code> if the first element is |
| * equal to the second element; and a positive number if the first |
| * element is greater than the second element |
| */ |
| protected int compareRuntimeTypes(IRuntimeType r1, IRuntimeType r2) { |
| return r1.getName().compareToIgnoreCase(r2.getName()); |
| } |
| |
| /** |
| * Sort two server types. |
| * |
| * @param s1 the first server type |
| * @param s2 the second server type |
| * @return a negative number if the first element is less than the |
| * second element; the value <code>0</code> if the first element is |
| * equal to the second element; and a positive number if the first |
| * element is greater than the second element |
| */ |
| protected int compareServerTypes(IServerType s1, IServerType s2) { |
| return s1.getName().compareToIgnoreCase(s2.getName()); |
| } |
| } |