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Package: StructuralChangeTesterIndex
StructuralChangeTesterIndex
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| StructuralChangeTesterIndex() |
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| activate(BundleContext) |
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| getEMFFormsStructuralChangeTester() |
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| isApplicable(VDomainModelReference) |
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| isStructureChanged(VDomainModelReference, EObject, ModelChangeNotification) |
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| setEMFFormsDatabindingEMF(EMFFormsDatabindingEMF) |
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| setEMFFormsStructuralChangeTester(EMFFormsStructuralChangeTester) |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2016 EclipseSource Muenchen GmbH and others.
3: *
4: * All rights reserved. This program and the accompanying materials
5: * are made available under the terms of the Eclipse Public License 2.0
6: * which accompanies this distribution, and is available at
7: * https://www.eclipse.org/legal/epl-2.0/
8: *
9: * SPDX-License-Identifier: EPL-2.0
10: *
11: * Contributors:
12: * Eugen Neufeld - initial API and implementation
13: ******************************************************************************/
14: package org.eclipse.emfforms.internal.core.services.structuralchange.index;
15:
16: import org.eclipse.emf.common.util.EList;
17: import org.eclipse.emf.ecore.EAttribute;
18: import org.eclipse.emf.ecore.EObject;
19: import org.eclipse.emf.ecore.EReference;
20: import org.eclipse.emf.ecp.common.spi.asserts.Assert;
21: import org.eclipse.emf.ecp.view.spi.indexdmr.model.VIndexDomainModelReference;
22: import org.eclipse.emf.ecp.view.spi.model.ModelChangeNotification;
23: import org.eclipse.emf.ecp.view.spi.model.VDomainModelReference;
24: import org.eclipse.emf.ecp.view.spi.model.VFeaturePathDomainModelReference;
25: import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
26: import org.eclipse.emfforms.spi.core.services.databinding.emf.EMFFormsDatabindingEMF;
27: import org.eclipse.emfforms.spi.core.services.structuralchange.EMFFormsStructuralChangeTester;
28: import org.eclipse.emfforms.spi.core.services.structuralchange.StructuralChangeTesterInternal;
29: import org.osgi.framework.BundleContext;
30: import org.osgi.framework.ServiceReference;
31: import org.osgi.service.component.annotations.Activate;
32: import org.osgi.service.component.annotations.Component;
33: import org.osgi.service.component.annotations.Deactivate;
34: import org.osgi.service.component.annotations.Reference;
35:
36: /**
37: * Structural change tester for VIndexDomainModelReferences.
38: *
39: * @author Eugen Neufeld
40: */
41: @Component
42: public class StructuralChangeTesterIndex implements StructuralChangeTesterInternal {
43:
44: private EMFFormsStructuralChangeTester emfFormsStructuralChangeTester;
45: private EMFFormsDatabindingEMF emfFormsDatabinding;
46: private BundleContext bundleContext;
47: private ServiceReference<EMFFormsStructuralChangeTester> emfFormsStructuralChangeTesterServiceReference;
48:
49: /**
50: * Called by the framework when the component gets activated.
51: *
52: * @param bundleContext The {@link BundleContext}
53: */
54: @Activate
55: protected void activate(BundleContext bundleContext) {
56: this.bundleContext = bundleContext;
57: }
58:
59: /**
60: * Called by the framework when the component gets deactivated.
61: *
62: * @param bundleContext The {@link BundleContext}
63: */
64: @Deactivate
65: protected void deactivate(BundleContext bundleContext) {
66:• if (emfFormsStructuralChangeTesterServiceReference != null) {
67: bundleContext.ungetService(emfFormsStructuralChangeTesterServiceReference);
68: emfFormsStructuralChangeTester = null;
69: }
70: }
71:
72: private EMFFormsStructuralChangeTester getEMFFormsStructuralChangeTester() {
73:• if (emfFormsStructuralChangeTester == null) {
74: emfFormsStructuralChangeTesterServiceReference = bundleContext
75: .getServiceReference(EMFFormsStructuralChangeTester.class);
76:• if (emfFormsStructuralChangeTesterServiceReference == null) {
77: throw new IllegalStateException("No EMFFormsDomainExpander available!"); //$NON-NLS-1$
78: }
79: emfFormsStructuralChangeTester = bundleContext.getService(emfFormsStructuralChangeTesterServiceReference);
80: }
81: return emfFormsStructuralChangeTester;
82: }
83:
84: /**
85: * Helper method for tests. This is quite ugly!
86: *
87: * @param emfFormsStructuralChangeTester The EMFFormsStructuralChangeTester to use
88: */
89: void setEMFFormsStructuralChangeTester(EMFFormsStructuralChangeTester emfFormsStructuralChangeTester) {
90: this.emfFormsStructuralChangeTester = emfFormsStructuralChangeTester;
91: }
92:
93: /**
94: * Sets the {@link EMFFormsDatabindingEMF} service.
95: *
96: * @param emfFormsDatabinding The emf databinding service
97: */
98: @Reference(unbind = "-")
99: protected void setEMFFormsDatabindingEMF(EMFFormsDatabindingEMF emfFormsDatabinding) {
100: this.emfFormsDatabinding = emfFormsDatabinding;
101: }
102:
103: /**
104: * {@inheritDoc}
105: *
106: * @see org.eclipse.emfforms.spi.core.services.structuralchange.StructuralChangeTesterInternal#isApplicable(VDomainModelReference)
107: */
108: @Override
109: public double isApplicable(VDomainModelReference reference) {
110:• if (VIndexDomainModelReference.class.isInstance(reference)) {
111: return 5;
112: }
113: return NOT_APPLICABLE;
114: }
115:
116: /**
117: * {@inheritDoc}
118: *
119: * @see org.eclipse.emfforms.spi.core.services.structuralchange.StructuralChangeTesterInternal#isStructureChanged(VDomainModelReference,
120: * EObject, ModelChangeNotification)
121: */
122: @SuppressWarnings("unchecked")
123: @Override
124: public boolean isStructureChanged(VDomainModelReference reference, EObject domainRootObject,
125: ModelChangeNotification notification) {
126: Assert.create(reference).notNull();
127: Assert.create(notification).notNull();
128: Assert.create(reference).ofClass(VFeaturePathDomainModelReference.class);
129:
130:• if (notification.getRawNotification().isTouch()) {
131: return false;
132: }
133:• if (EAttribute.class.isInstance(notification.getStructuralFeature())) {
134: return false;
135: }
136:
137: final VIndexDomainModelReference indexDMR = VIndexDomainModelReference.class.cast(reference);
138: boolean relevantChange = false;
139: EObject lastResolvedEObject = domainRootObject;
140:• if (indexDMR.getPrefixDMR() == null) {
141:• for (final EReference eReference : indexDMR.getDomainModelEReferencePath()) {
142:• if (lastResolvedEObject == null) {
143: return false;
144: }
145:• relevantChange |= eReference.equals(notification.getStructuralFeature())
146:• && lastResolvedEObject == notification.getNotifier();
147:• if (relevantChange) {
148: return true;
149: }
150: lastResolvedEObject = (EObject) lastResolvedEObject.eGet(eReference);
151: }
152:• relevantChange |= notification.getStructuralFeature().equals(indexDMR.getDomainModelEFeature())
153:• && lastResolvedEObject == notification.getNotifier();
154:• if (relevantChange) {
155: return true;
156: }
157: lastResolvedEObject = ((EList<EObject>) lastResolvedEObject.eGet(indexDMR.getDomainModelEFeature()))
158: .get(indexDMR.getIndex());
159: } else {
160: relevantChange = getEMFFormsStructuralChangeTester().isStructureChanged(indexDMR.getPrefixDMR(),
161: domainRootObject, notification);
162:• if (relevantChange) {
163: return true;
164: }
165: try {
166: lastResolvedEObject = ((EList<EObject>) emfFormsDatabinding
167: .getSetting(indexDMR.getPrefixDMR(), domainRootObject).get(true)).get(indexDMR.getIndex());
168: } catch (final DatabindingFailedException ex) {
169: throw new IllegalStateException(ex);
170: }
171: }
172:
173: relevantChange = getEMFFormsStructuralChangeTester().isStructureChanged(indexDMR.getTargetDMR(),
174: lastResolvedEObject,
175: notification);
176: return relevantChange;
177: }
178:
179: }