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Package: DynamicContainmentTreeDMRConverter
DynamicContainmentTreeDMRConverter
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| DynamicContainmentTreeDMRConverter() |
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| activate(BundleContext) |
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| checkListType(EStructuralFeature) |
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| convertToListProperty(VDomainModelReference, EObject) |
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| convertToValueProperty(VDomainModelReference, EClass, EditingDomain) |
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| convertToValueProperty(VDomainModelReference, EObject) |
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| deactivate(BundleContext) |
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| getAndCheckDynamicContainmentTreeDMR(VDomainModelReference) |
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| getEMFFormsDatabinding() |
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| getIndex(DynamicContainmentTreeDomainModelReference) |
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| getIndexedRootProperty(DynamicContainmentTreeDomainModelReference, int, EClass, EditingDomain) |
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| getIndexedRootProperty(DynamicContainmentTreeDomainModelReference, int, EObject) |
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| getSetting(VDomainModelReference, EObject) |
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| isApplicable(VDomainModelReference) |
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| setEMFFormsDatabinding(EMFFormsDatabindingEMF) |
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| unsetEMFFormsDatabinding() |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2018 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: * Lucas Koehler - initial API and implementation
13: * Christian W. Damus - bug 533522
14: ******************************************************************************/
15: package org.eclipse.emf.ecp.view.dynamictree.model.impl;
16:
17: import org.eclipse.core.databinding.observable.IObserving;
18: import org.eclipse.core.databinding.observable.value.IObservableValue;
19: import org.eclipse.core.databinding.property.value.IValueProperty;
20: import org.eclipse.emf.databinding.IEMFListProperty;
21: import org.eclipse.emf.databinding.IEMFValueProperty;
22: import org.eclipse.emf.databinding.internal.EMFValuePropertyDecorator;
23: import org.eclipse.emf.ecore.EClass;
24: import org.eclipse.emf.ecore.EObject;
25: import org.eclipse.emf.ecore.EReference;
26: import org.eclipse.emf.ecore.EStructuralFeature;
27: import org.eclipse.emf.ecore.EStructuralFeature.Setting;
28: import org.eclipse.emf.ecore.InternalEObject;
29: import org.eclipse.emf.ecp.view.dynamictree.model.DynamicContainmentItem;
30: import org.eclipse.emf.ecp.view.dynamictree.model.DynamicContainmentTreeDomainModelReference;
31: import org.eclipse.emf.ecp.view.spi.model.VDomainModelReference;
32: import org.eclipse.emf.edit.domain.EditingDomain;
33: import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
34: import org.eclipse.emfforms.spi.core.services.databinding.emf.DomainModelReferenceConverterEMF;
35: import org.eclipse.emfforms.spi.core.services.databinding.emf.EMFFormsDatabindingEMF;
36: import org.osgi.framework.BundleContext;
37: import org.osgi.framework.ServiceReference;
38:
39: /**
40: * A {@link DomainModelReferenceConverterEMF} that converts a {@link DynamicContainmentTreeDomainModelReference} to an
41: * {@link IEMFListProperty IEMFListProperty} or an {@link IEMFValueProperty}.
42: *
43: * @author Lucas Koehler
44: *
45: */
46: @SuppressWarnings("restriction")
47: public class DynamicContainmentTreeDMRConverter implements DomainModelReferenceConverterEMF {
48: private EMFFormsDatabindingEMF emfFormsDatabinding;
49: private ServiceReference<EMFFormsDatabindingEMF> databindingServiceReference;
50: private BundleContext bundleContext;
51:
52: /**
53: * Sets the {@link EMFFormsDatabindingEMF}.
54: *
55: * @param emfFormsDatabinding the emfFormsDatabinding to set
56: */
57: void setEMFFormsDatabinding(EMFFormsDatabindingEMF emfFormsDatabinding) {
58: this.emfFormsDatabinding = emfFormsDatabinding;
59: }
60:
61: /**
62: * Unsets the {@link EMFFormsDatabindingEMF}.
63: */
64: void unsetEMFFormsDatabinding() {
65: emfFormsDatabinding = null;
66: }
67:
68: /**
69: * This method is called by the OSGI framework when this {@link DomainModelReferenceConverterEMF} is activated. It
70: * retrieves the {@link EMFFormsDatabindingEMF EMF Forms databinding service}.
71: *
72: * @param bundleContext The {@link BundleContext} of this classes bundle.
73: */
74: protected final void activate(BundleContext bundleContext) {
75: this.bundleContext = bundleContext;
76: }
77:
78: /**
79: * This method is called by the OSGI framework when this {@link DomainModelReferenceConverterEMF} is deactivated.
80: * It frees the {@link EMFFormsDatabindingEMF EMF Forms databinding service}.
81: *
82: * @param bundleContext The {@link BundleContext} of this classes bundle.
83: */
84: protected final void deactivate(BundleContext bundleContext) {
85: unsetEMFFormsDatabinding();
86:• if (databindingServiceReference != null) {
87: bundleContext.ungetService(databindingServiceReference);
88: databindingServiceReference = null;
89: }
90: }
91:
92: @Override
93: public double isApplicable(VDomainModelReference domainModelReference) {
94:• if (domainModelReference == null) {
95: throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
96: }
97:• if (domainModelReference instanceof DynamicContainmentTreeDomainModelReference) {
98: return 10d;
99: }
100: return NOT_APPLICABLE;
101: }
102:
103: private EMFFormsDatabindingEMF getEMFFormsDatabinding() {
104:• if (emfFormsDatabinding == null) {
105: databindingServiceReference = bundleContext.getServiceReference(EMFFormsDatabindingEMF.class);
106: setEMFFormsDatabinding(bundleContext.getService(databindingServiceReference));
107: }
108: return emfFormsDatabinding;
109: }
110:
111: @Override
112: public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EObject object)
113: throws DatabindingFailedException {
114: final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = getAndCheckDynamicContainmentTreeDMR(
115: domainModelReference);
116:
117: final int index = getIndex(dynamicContainmentTreeReference);
118:
119: final EMFValuePropertyDecorator indexedProperty = getIndexedRootProperty(
120: dynamicContainmentTreeReference, index, object);
121:
122: final IEMFValueProperty valuePropertyFromBase = getEMFFormsDatabinding()
123: .getValueProperty(dynamicContainmentTreeReference.getPathFromBase(), object);
124:
125: return indexedProperty.value(valuePropertyFromBase);
126: }
127:
128: @Override
129: public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EClass rootEClass,
130: EditingDomain editingDomain) throws DatabindingFailedException {
131: final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = getAndCheckDynamicContainmentTreeDMR(
132: domainModelReference);
133:
134: final int index = getIndex(dynamicContainmentTreeReference);
135:
136: final EMFValuePropertyDecorator indexedProperty = getIndexedRootProperty(
137: dynamicContainmentTreeReference, index, rootEClass, editingDomain);
138:
139: final IEMFValueProperty valuePropertyFromBase = getEMFFormsDatabinding()
140: .getValueProperty(dynamicContainmentTreeReference.getPathFromBase(), rootEClass, editingDomain);
141:
142: return indexedProperty.value(valuePropertyFromBase);
143: }
144:
145: @Override
146: public IEMFListProperty convertToListProperty(VDomainModelReference domainModelReference, EObject object)
147: throws DatabindingFailedException {
148: final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = getAndCheckDynamicContainmentTreeDMR(
149: domainModelReference);
150:
151: final int index = getIndex(dynamicContainmentTreeReference);
152:
153: final EMFValuePropertyDecorator indexedProperty = getIndexedRootProperty(
154: dynamicContainmentTreeReference, index, object);
155: final IEMFListProperty listPropertyFromBase = getEMFFormsDatabinding()
156: .getListProperty(dynamicContainmentTreeReference.getPathFromBase(), object);
157:
158: return indexedProperty.list(listPropertyFromBase);
159: }
160:
161: private EMFValuePropertyDecorator getIndexedRootProperty(
162: final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference, final int index,
163: EObject object)
164: throws DatabindingFailedException, IllegalListTypeException {
165: final IValueProperty valuePropertyFromRoot = getEMFFormsDatabinding()
166: .getValueProperty(dynamicContainmentTreeReference.getPathFromRoot(), object);
167: final EStructuralFeature structuralFeature = (EStructuralFeature) valuePropertyFromRoot.getValueType();
168: checkListType(structuralFeature);
169:
170: final EMFIndexedValuePropertyDelegator indexedProperty = new EMFIndexedValuePropertyDelegator(
171: valuePropertyFromRoot, index);
172: return new EMFValuePropertyDecorator(indexedProperty, structuralFeature);
173: }
174:
175: private EMFValuePropertyDecorator getIndexedRootProperty(
176: final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference, final int index,
177: EClass rootEClass, EditingDomain editingDomain) throws DatabindingFailedException, IllegalListTypeException {
178: final IValueProperty valuePropertyFromRoot = getEMFFormsDatabinding()
179: .getValueProperty(dynamicContainmentTreeReference.getPathFromRoot(), rootEClass, editingDomain);
180: final EStructuralFeature structuralFeature = (EStructuralFeature) valuePropertyFromRoot.getValueType();
181: checkListType(structuralFeature);
182:
183: final EMFIndexedValuePropertyDelegator indexedProperty = new EMFIndexedValuePropertyDelegator(
184: valuePropertyFromRoot, index);
185: return new EMFValuePropertyDecorator(indexedProperty, structuralFeature);
186: }
187:
188: private DynamicContainmentTreeDomainModelReference getAndCheckDynamicContainmentTreeDMR(
189: VDomainModelReference domainModelReference) throws DatabindingFailedException {
190:• if (domainModelReference == null) {
191: throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
192: }
193:• if (!DynamicContainmentTreeDomainModelReference.class.isInstance(domainModelReference)) {
194: throw new IllegalArgumentException(
195: "DomainModelReference must be an instance of DynamicContainmentTreeDomainModelReference."); //$NON-NLS-1$
196: }
197:
198: final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = DynamicContainmentTreeDomainModelReference.class
199: .cast(domainModelReference);
200:• if (dynamicContainmentTreeReference.getPathFromRoot() == null) {
201: throw new DatabindingFailedException(
202: "The field pathFromRoot of the given DynamicContainmentTreeDomainModelReference must not be null."); //$NON-NLS-1$
203: }
204:• if (dynamicContainmentTreeReference.getPathFromBase() == null) {
205: throw new DatabindingFailedException(
206: "The field pathFromBase of the given DynamicContainmentTreeDomainModelReference must not be null."); //$NON-NLS-1$
207: }
208: return dynamicContainmentTreeReference;
209: }
210:
211: private int getIndex(DynamicContainmentTreeDomainModelReference reference) throws DatabindingFailedException {
212: EObject parent = reference.eContainer();
213:• while (!DynamicContainmentItem.class.isInstance(parent) && parent != null) {
214: parent = parent.eContainer();
215: }
216:• if (parent == null) {
217: throw new DatabindingFailedException(
218: "The base item index of the DynamicContainmentTreeDomainModelReference could not be resolved because its container is null."); //$NON-NLS-1$
219: }
220: final DynamicContainmentItem packingItem = (DynamicContainmentItem) parent;
221:• if (packingItem.getBaseItemIndex() == null) {
222: throw new DatabindingFailedException(
223: "The base item index of the DynamicContainmentTreeDomainModelReference must not be null."); //$NON-NLS-1$
224: }
225: return packingItem.getBaseItemIndex();
226: }
227:
228: /**
229: * Checks whether the given structural feature references a proper list to generate a value or list property.
230: *
231: * @param structuralFeature The feature to check
232: * @throws IllegalListTypeException if the structural feature doesn't reference a proper list.
233: */
234: private void checkListType(EStructuralFeature structuralFeature) throws IllegalListTypeException {
235:• if (!structuralFeature.isMany()) {
236: throw new IllegalListTypeException(
237: "The DynamicContainmentTreeDomainModelReference's base feature must reference a list."); //$NON-NLS-1$
238: }
239:• if (!EReference.class.isInstance(structuralFeature)) {
240: throw new IllegalListTypeException(
241: "The DynamicContainmentTreeDomainModelReference's base feature must reference a list of EObjects."); //$NON-NLS-1$
242: }
243: }
244:
245: @Override
246: public Setting getSetting(VDomainModelReference domainModelReference, EObject object)
247: throws DatabindingFailedException {
248: final IEMFValueProperty valueProperty = convertToValueProperty(domainModelReference, object);
249: final IObservableValue observableValue = valueProperty.observe(object);
250: final EObject eObject = (EObject) IObserving.class.cast(observableValue).getObserved();
251:• if (eObject == null) {
252: throw new DatabindingFailedException("The observed elements is empty. Probably the list is empty!");
253: }
254: final EStructuralFeature eStructuralFeature = valueProperty.getStructuralFeature();
255: return InternalEObject.class.cast(eObject).eSetting(eStructuralFeature);
256: }
257: }