1 /*****************************************************************************
2 * Copyright (c) 2013 CEA LIST.
3 *
4 *
5 * All rights reserved. This program and the accompanying materials
6 * are made available under the terms of the Eclipse Public License v1.0
7 * which accompanies this distribution, and is available at
8 * http://www.eclipse.org/legal/epl-v10.html
9 *
10 * Contributors:
11 * Ansgar Radermacher ansgar.radermacher@cea.fr
12 *
13 *****************************************************************************/
14 package org.eclipse.papyrus.designer.transformation.base.utils;
15
16 import org.eclipse.uml2.uml.Class;
17 import org.eclipse.uml2.uml.Interface;
18 import org.eclipse.uml2.uml.InterfaceRealization;
19
20 public class RealizationUtils {
21
22 public static final String REALIZATION_OF = "realization of "; //$NON-NLS-1$
23
24 /**
25 * Add an interface realization relationship from an implementation (Class) towards an interface
26 *
27 * @param implementation
28 * A class
29 * @param intf
30 * The interface it should realize
31 */
32 public static void addRealization(final Class implementation, final Interface intf) {
33 if (!hasRealization(implementation, intf)) {
34 InterfaceRealization ir =
35 implementation.createInterfaceRealization(calcRealizationName(intf), intf);
36 ir.getClients().add(implementation);
37 ir.getSuppliers().add(intf);
38 }
39 }
40
41 /**
42 * check, whether a realization relationship to a given interface exists
43 *
44 * @param implementation
45 * A class
46 * @param intf
47 * The interface it should realize
48 * @return true, if the class has an (interface) realization relationship to the passed interface
49 */
50 public static boolean hasRealization(Class implementation, Interface intf) {
51 return implementation.getInterfaceRealization(null, intf) != null;
52 }
53
54 /**
55 * Calculate the name of an interface realization to an interface
56 *
57 * @param intf
58 * an interface
59 * @return the calculated name for the realization relationship
60 */
61 public static String calcRealizationName(Interface intf) {
62 String name = intf.getName();
63 if (name == null) {
64 name = "undefined"; //$NON-NLS-1$
65 }
66 return REALIZATION_OF + name;
67 }
68
69 public static void addUsage(Class portType, Interface usedInterface) {
70 if (!portType.getUsedInterfaces().contains(usedInterface)) {
71 portType.createUsage(usedInterface);
72 }
73 }
74 }