| 1 | /********************************************************************** |
| 2 | * Copyright (c) 2005, 2012 IBM Corporation, Ericsson |
| 3 | * All rights reserved. This program and the accompanying materials |
| 4 | * are made available under the terms of the Eclipse Public License v1.0 |
| 5 | * which accompanies this distribution, and is available at |
| 6 | * http://www.eclipse.org/legal/epl-v10.html |
| 7 | * |
| 8 | * Contributors: |
| 9 | * IBM - Initial API and implementation |
| 10 | * Bernd Hufmann - Updated for TMF |
| 11 | **********************************************************************/ |
| 12 | |
| 13 | package org.eclipse.linuxtools.tmf.ui.views.uml2sd.util; |
| 14 | |
| 15 | import java.io.Serializable; |
| 16 | import java.util.Comparator; |
| 17 | |
| 18 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.core.GraphNode; |
| 19 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.core.SyncMessage; |
| 20 | |
| 21 | /** |
| 22 | * Synchronous message comparator Compare two syncMessages only taking into account the event occurrence when their |
| 23 | * appear.<br> |
| 24 | * |
| 25 | * The message with the greater event occurrence is considered to be the greater.<br> |
| 26 | * |
| 27 | * @version 1.0 |
| 28 | * @author sveyrier |
| 29 | * |
| 30 | */ |
| 31 | public class SortSyncMessageComparator implements Comparator<GraphNode>, Serializable { |
| 32 | |
| 33 | // ------------------------------------------------------------------------ |
| 34 | // Constants |
| 35 | // ------------------------------------------------------------------------ |
| 36 | /** |
| 37 | * Serial version UID |
| 38 | */ |
| 39 | private static final long serialVersionUID = 4781250984753283718L; |
| 40 | |
| 41 | // ------------------------------------------------------------------------ |
| 42 | // Methods |
| 43 | // ------------------------------------------------------------------------ |
| 44 | /* |
| 45 | * (non-Javadoc) |
| 46 | * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object) |
| 47 | */ |
| 48 | @Override |
| 49 | public int compare(GraphNode arg0, GraphNode arg1) { |
| 50 | if (arg0 instanceof SyncMessage && arg1 instanceof SyncMessage) { |
| 51 | SyncMessage m1 = (SyncMessage) arg0; |
| 52 | SyncMessage m2 = (SyncMessage) arg1; |
| 53 | if (m1.getEventOccurrence() > m2.getEventOccurrence()) { |
| 54 | return 1; |
| 55 | } else if (m1.getEventOccurrence() == m2.getEventOccurrence()) { |
| 56 | return 0; |
| 57 | } else { |
| 58 | return -1; |
| 59 | } |
| 60 | } |
| 61 | return 0; |
| 62 | } |
| 63 | } |