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Package: FeaturePathDomainModelReferenceConverter
FeaturePathDomainModelReferenceConverter
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| FeaturePathDomainModelReferenceConverter() |
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| checkAndConvertDMR(VDomainModelReference) |
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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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| getEditingDomain(EObject) |
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| getSetting(VDomainModelReference, EObject) |
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| identify(ENamedElement) |
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| identify(EObject) |
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| isApplicable(VDomainModelReference) |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2019 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 553224
14: ******************************************************************************/
15: package org.eclipse.emfforms.core.services.databinding.featurepath;
16:
17: import java.util.List;
18:
19: import org.eclipse.emf.common.util.URI;
20: import org.eclipse.emf.databinding.IEMFListProperty;
21: import org.eclipse.emf.databinding.IEMFValueProperty;
22: import org.eclipse.emf.databinding.edit.EMFEditProperties;
23: import org.eclipse.emf.ecore.EClass;
24: import org.eclipse.emf.ecore.ENamedElement;
25: import org.eclipse.emf.ecore.EObject;
26: import org.eclipse.emf.ecore.EPackage;
27: import org.eclipse.emf.ecore.EReference;
28: import org.eclipse.emf.ecore.EStructuralFeature;
29: import org.eclipse.emf.ecore.EStructuralFeature.Setting;
30: import org.eclipse.emf.ecore.InternalEObject;
31: import org.eclipse.emf.ecore.resource.Resource;
32: import org.eclipse.emf.ecore.util.EcoreUtil;
33: import org.eclipse.emf.ecp.view.spi.model.VDomainModelReference;
34: import org.eclipse.emf.ecp.view.spi.model.VFeaturePathDomainModelReference;
35: import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
36: import org.eclipse.emf.edit.domain.EditingDomain;
37: import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
38: import org.eclipse.emfforms.spi.core.services.databinding.emf.DomainModelReferenceConverterEMF;
39:
40: /**
41: * An implementation of {@link DomainModelReferenceConverterEMF} that converts {@link VFeaturePathDomainModelReference}
42: * s.
43: *
44: * @author Lucas Koehler
45: *
46: */
47: public class FeaturePathDomainModelReferenceConverter implements DomainModelReferenceConverterEMF {
48:
49: @Override
50: public double isApplicable(VDomainModelReference domainModelReference) {
51:• if (domainModelReference == null) {
52: throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
53: }
54:• if (domainModelReference instanceof VFeaturePathDomainModelReference) {
55: return 0;
56: }
57: return NOT_APPLICABLE;
58: }
59:
60: private VFeaturePathDomainModelReference checkAndConvertDMR(VDomainModelReference domainModelReference)
61: throws DatabindingFailedException {
62:• if (domainModelReference == null) {
63: throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
64: }
65:• if (!VFeaturePathDomainModelReference.class.isInstance(domainModelReference)) {
66: throw new IllegalArgumentException(
67: String.format("DomainModelReference %1$s is not an instance of VFeaturePathDomainModelReference.", //$NON-NLS-1$
68: identify(domainModelReference)));
69: }
70:
71: final VFeaturePathDomainModelReference featurePathReference = (VFeaturePathDomainModelReference) domainModelReference;
72:• if (featurePathReference.getDomainModelEFeature() == null) {
73: throw new DatabindingFailedException(
74: "The field domainModelEFeature of the given VFeaturePathDomainModelReference must not be null."); //$NON-NLS-1$
75: }
76:• if (featurePathReference.getDomainModelEFeature().eIsProxy()) {
77: throw new DatabindingFailedException(
78: String.format("The domainModelEFeature %1$s of the given DMR %2$s is a proxy.", //$NON-NLS-1$
79: identify(featurePathReference.getDomainModelEFeature()), identify(featurePathReference)));
80: }
81:• for (final EReference path : featurePathReference.getDomainModelEReferencePath()) {
82:• if (path.eIsProxy()) {
83: throw new DatabindingFailedException(
84: String.format("The path reference %1$s of the given DMR %2$s is a proxy.", //$NON-NLS-1$
85: identify(path), identify(featurePathReference)));
86: }
87: }
88: return featurePathReference;
89: }
90:
91: @Override
92: public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EObject object)
93: throws DatabindingFailedException {
94:
95: final EditingDomain editingDomain = getEditingDomain(object);
96: return convertToValueProperty(domainModelReference, null, editingDomain);
97: }
98:
99: @Override
100: public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EClass rootEClass,
101: EditingDomain editingDomain) throws DatabindingFailedException {
102:
103: final VFeaturePathDomainModelReference featurePathReference = checkAndConvertDMR(domainModelReference);
104: final List<EReference> referencePath = featurePathReference.getDomainModelEReferencePath();
105:• if (referencePath.isEmpty()) {
106: return EMFEditProperties.value(editingDomain, featurePathReference.getDomainModelEFeature());
107: }
108:
109:• if (referencePath.get(0).isMany()) {
110: throw new DatabindingFailedException(String.format(
111: "The path is not fully resolved. The reference being resolved is not a single reference: %1$s. The DMR is %2$s.", //$NON-NLS-1$
112: identify(referencePath.get(0)), identify(domainModelReference)));
113: }
114: IEMFValueProperty emfValueProperty = EMFEditProperties.value(editingDomain, referencePath.get(0));
115:• for (int i = 1; i < referencePath.size(); i++) {
116: final EReference eReference = referencePath.get(i);
117:• if (eReference.isMany()) {
118: throw new DatabindingFailedException(String.format(
119: "The path is not fully resolved. The reference being resolved is not a single reference: %1$s. The DMR is %2$s.", //$NON-NLS-1$
120: identify(eReference), identify(domainModelReference)));
121: }
122: emfValueProperty = emfValueProperty.value(eReference);
123: }
124: return emfValueProperty.value(featurePathReference.getDomainModelEFeature());
125: }
126:
127: private EditingDomain getEditingDomain(EObject object) throws DatabindingFailedException {
128: return AdapterFactoryEditingDomain.getEditingDomainFor(object);
129: }
130:
131: @Override
132: public IEMFListProperty convertToListProperty(VDomainModelReference domainModelReference, EObject object)
133: throws DatabindingFailedException {
134: final VFeaturePathDomainModelReference featurePathReference = checkAndConvertDMR(domainModelReference);
135:
136: final List<EReference> referencePath = featurePathReference.getDomainModelEReferencePath();
137: final EditingDomain editingDomain = getEditingDomain(object);
138:• if (referencePath.isEmpty()) {
139: return EMFEditProperties.list(editingDomain, featurePathReference.getDomainModelEFeature());
140: }
141:
142: IEMFValueProperty emfValueProperty = EMFEditProperties.value(editingDomain, referencePath.get(0));
143:• for (int i = 1; i < referencePath.size(); i++) {
144: emfValueProperty = emfValueProperty.value(referencePath.get(i));
145: }
146: return emfValueProperty.list(featurePathReference.getDomainModelEFeature());
147: }
148:
149: @Override
150: public Setting getSetting(VDomainModelReference domainModelReference, EObject object)
151: throws DatabindingFailedException {
152: final VFeaturePathDomainModelReference featurePathReference = checkAndConvertDMR(domainModelReference);
153:
154: EObject currentObject = object;
155:• for (final EReference eReference : featurePathReference.getDomainModelEReferencePath()) {
156:• if (eReference.isMany()) {
157: throw new DatabindingFailedException(String.format(
158: "The path is not fully resolved. The reference being resolved is not a single reference: %1$s. The DMR is %2$s. Last resolved EObject is %3$s.", //$NON-NLS-1$
159: identify(eReference), identify(domainModelReference), identify(currentObject)));
160: }
161:• if (currentObject.eClass().getFeatureID(eReference) == -1) {
162: throw new DatabindingFailedException(String.format(
163: "Given EClass %1$s has no such feature %2$s. The DMR is %3$s. Last resolved EObject is %4$s.", //$NON-NLS-1$
164: identify(currentObject.eClass()), identify(eReference),
165: identify(domainModelReference), identify(currentObject)));
166: }
167: final EObject nextObject = (EObject) currentObject.eGet(eReference);
168:• if (nextObject == null) {
169: throw new DatabindingFailedException(String.format(
170: "The path is not fully resolved. The DMR is %1$s. Last resolved EObject is %2$s. Reference being resolved is %3$s.", //$NON-NLS-1$
171: identify(domainModelReference), identify(currentObject), identify(eReference)));
172: }
173: currentObject = nextObject;
174: }
175: final EStructuralFeature structuralFeature = featurePathReference.getDomainModelEFeature();
176:• if (structuralFeature.getEType() == null) {
177: throw new DatabindingFailedException(
178: String.format("The eType of the feature %1$s is null in DMR %2$s.", identify(structuralFeature), //$NON-NLS-1$
179: identify(domainModelReference)));
180: }
181:• if (currentObject.eClass().getEAllStructuralFeatures().contains(structuralFeature)) {
182: return InternalEObject.class.cast(currentObject).eSetting(structuralFeature);
183: }
184: throw new DatabindingFailedException(String.format("The resolved EObject %1$s doesn't have the feature %2$s.", //$NON-NLS-1$
185: identify(currentObject), identify(structuralFeature)));
186: }
187:
188: private static String identify(EObject eObject) {
189:• if (eObject == null) {
190: return "<null>"; //$NON-NLS-1$
191: }
192:
193: final StringBuilder result = new StringBuilder();
194:
195: // First, a trimmed variant of the to-string representation (omit Java package)
196: result.append(eObject.toString());
197: final int hashCodePos = result.indexOf("@"); //$NON-NLS-1$
198:• if (hashCodePos > 0) {
199: final int lastDotPos = result.lastIndexOf(".", hashCodePos); //$NON-NLS-1$
200:• if (lastDotPos > 0) {
201: result.delete(0, lastDotPos + 1);
202: }
203: }
204:
205: final Resource resource = eObject.eResource();
206:• if (resource != null) {
207: result.append('<');
208: result.append(EcoreUtil.getURI(eObject));
209: result.append('>');
210: }
211:
212: return result.toString();
213: }
214:
215: private static String identify(ENamedElement element) {
216:• if (element == null) {
217: return "<null>"; //$NON-NLS-1$
218: }
219:
220: final StringBuilder result = new StringBuilder();
221:
222:• if (element.eIsProxy()) {
223: // Infer as much as possible
224: final URI proxyURI = EcoreUtil.getURI(element);
225:
226: // Get the qualified ENamedElement name
227: String fragment = proxyURI.fragment();
228:• while (!fragment.isEmpty() && fragment.charAt(0) == '/') {
229: fragment = fragment.substring(1);
230: }
231: result.append(fragment.replace('/', '.'));
232:
233: // Get the package namespace (or Ecore path)
234: result.append(" ("); //$NON-NLS-1$
235: result.append(proxyURI.trimFragment());
236: result.append(')');
237: } else {
238: result.append(element.getName());
239:
240:• for (EObject container = element.eContainer(); container instanceof ENamedElement; container = container
241: .eContainer()) {
242:
243: final ENamedElement parent = (ENamedElement) container;
244:
245:• if (parent instanceof EPackage) {
246: result.append(" ("); //$NON-NLS-1$
247: result.append(((EPackage) container).getNsURI());
248: result.append(')');
249: } else {
250: result.insert(0, '.');
251: result.insert(0, parent.getName());
252: }
253: }
254: }
255:
256: return result.toString();
257: }
258:
259: }