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Package: EMFFormsCustomDMRExpander
EMFFormsCustomDMRExpander
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| EMFFormsCustomDMRExpander() |
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| activate(BundleContext) |
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| deactivate(BundleContext) |
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| getEMFFormsDomainExpander() |
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| isApplicable(VDomainModelReference) |
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| loadObject(String, String) |
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| prepareDomainObject(VDomainModelReference, EObject) |
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| setEMFFormsDomainExpander(EMFFormsDomainExpander) |
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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.emf.ecp.view.spi.custom.model.impl;
15:
16: import java.util.LinkedHashSet;
17: import java.util.Set;
18:
19: import org.eclipse.core.runtime.Platform;
20: import org.eclipse.emf.ecore.EObject;
21: import org.eclipse.emf.ecp.common.spi.asserts.Assert;
22: import org.eclipse.emf.ecp.view.spi.custom.model.ECPHardcodedReferences;
23: import org.eclipse.emf.ecp.view.spi.custom.model.VCustomDomainModelReference;
24: import org.eclipse.emf.ecp.view.spi.model.VDomainModelReference;
25: import org.eclipse.emfforms.spi.core.services.domainexpander.EMFFormsDMRExpander;
26: import org.eclipse.emfforms.spi.core.services.domainexpander.EMFFormsDomainExpander;
27: import org.eclipse.emfforms.spi.core.services.domainexpander.EMFFormsExpandingFailedException;
28: import org.eclipse.emfforms.spi.localization.LocalizationServiceHelper;
29: import org.osgi.framework.Bundle;
30: import org.osgi.framework.BundleContext;
31: import org.osgi.framework.ServiceReference;
32: import org.osgi.service.component.annotations.Activate;
33: import org.osgi.service.component.annotations.Component;
34: import org.osgi.service.component.annotations.Deactivate;
35:
36: /**
37: * DMR Expander for VCustomDMR implementation of {@link EMFFormsDMRExpander}.
38: *
39: * @author Eugen Neufeld
40: * @since 1.8
41: *
42: */
43: @Component(name = "EMFFormsCustomDMRExpander", service = EMFFormsDMRExpander.class)
44: public class EMFFormsCustomDMRExpander implements EMFFormsDMRExpander {
45:
46: private EMFFormsDomainExpander domainExpander;
47: private BundleContext bundleContext;
48: private ServiceReference<EMFFormsDomainExpander> eMFFormsDomainExpanderServiceReference;
49:
50: /**
51: * Called by the framework when the component gets activated.
52: *
53: * @param bundleContext The {@link BundleContext}
54: */
55: @Activate
56: protected void activate(BundleContext bundleContext) {
57: this.bundleContext = bundleContext;
58: }
59:
60: /**
61: * Called by the framework when the component gets deactivated.
62: *
63: * @param bundleContext The {@link BundleContext}
64: */
65: @Deactivate
66: protected void deactivate(BundleContext bundleContext) {
67:• if (eMFFormsDomainExpanderServiceReference != null) {
68: bundleContext.ungetService(eMFFormsDomainExpanderServiceReference);
69: domainExpander = null;
70: }
71: }
72:
73: private EMFFormsDomainExpander getEMFFormsDomainExpander() {
74:• if (domainExpander == null) {
75: eMFFormsDomainExpanderServiceReference = bundleContext.getServiceReference(EMFFormsDomainExpander.class);
76:• if (eMFFormsDomainExpanderServiceReference == null) {
77: throw new IllegalStateException("No EMFFormsDomainExpander available!"); //$NON-NLS-1$
78: }
79: domainExpander = bundleContext.getService(eMFFormsDomainExpanderServiceReference);
80: }
81: return domainExpander;
82: }
83:
84: /**
85: * Helper method for tests. This is quite ugly!
86: *
87: * @param domainExpander The EMFFormsDomainExpander to use
88: */
89: void setEMFFormsDomainExpander(EMFFormsDomainExpander domainExpander) {
90: this.domainExpander = domainExpander;
91: }
92:
93: /**
94: * {@inheritDoc}
95: *
96: * @see org.eclipse.emfforms.spi.core.services.domainexpander.EMFFormsDMRExpander#prepareDomainObject(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference,
97: * org.eclipse.emf.ecore.EObject)
98: */
99: @Override
100: public void prepareDomainObject(VDomainModelReference domainModelReference, EObject domainObject)
101: throws EMFFormsExpandingFailedException {
102: Assert.create(domainModelReference).notNull();
103: Assert.create(domainObject).notNull();
104: Assert.create(domainModelReference).ofClass(VCustomDomainModelReference.class);
105:
106: final VCustomDomainModelReference customReference = VCustomDomainModelReference.class
107: .cast(domainModelReference);
108:
109:• if (customReference.getBundleName() == null || customReference.getClassName() == null) {
110: throw new EMFFormsExpandingFailedException(
111: "The custom domain model reference's bundle name and classname must not be null."); //$NON-NLS-1$
112: }
113: final ECPHardcodedReferences customControl = loadObject(customReference.getBundleName(),
114: customReference.getClassName());
115:• if (customControl == null) {
116: throw new EMFFormsExpandingFailedException(
117: "The custom domain model cannot be loaded."); //$NON-NLS-1$
118: }
119:• if (!customReference.isControlChecked()) {
120: // read stuff from control
121: final Set<VDomainModelReference> controlReferences = new LinkedHashSet<VDomainModelReference>();
122: controlReferences.addAll(customControl.getNeededDomainModelReferences());
123: controlReferences.addAll(customReference.getDomainModelReferences());
124: customReference.getDomainModelReferences().clear();
125: customReference.getDomainModelReferences().addAll(controlReferences);
126: customReference.setControlChecked(true);
127: }
128: // resolve references from control
129:• for (final VDomainModelReference dmr : customReference.getDomainModelReferences()) {
130: getEMFFormsDomainExpander().prepareDomainObject(dmr, domainObject);
131: }
132: }
133:
134: private static ECPHardcodedReferences loadObject(String bundleName, String clazz) {
135: final Bundle bundle = Platform.getBundle(bundleName);
136:• if (bundle == null) {
137: new ClassNotFoundException(String.format(LocalizationServiceHelper.getString(
138: VCustomDomainModelReferenceImpl.class, "BundleNotFound_ExceptionMessage"), clazz, bundleName)); //$NON-NLS-1$
139: return null;
140: }
141: try {
142: final Class<?> loadClass = bundle.loadClass(clazz);
143:• if (!ECPHardcodedReferences.class.isAssignableFrom(loadClass)) {
144: return null;
145: }
146: return ECPHardcodedReferences.class.cast(loadClass.newInstance());
147: } catch (final ClassNotFoundException ex) {
148: return null;
149: } catch (final InstantiationException ex) {
150: return null;
151: } catch (final IllegalAccessException ex) {
152: return null;
153: }
154:
155: }
156:
157: /**
158: * {@inheritDoc}
159: *
160: * @see org.eclipse.emfforms.spi.core.services.domainexpander.EMFFormsDMRExpander#isApplicable(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference)
161: */
162: @Override
163: public double isApplicable(VDomainModelReference domainModelReference) {
164:• if (VCustomDomainModelReference.class.isInstance(domainModelReference)) {
165: return 5;
166: }
167: return NOT_APPLICABLE;
168: }
169:
170: }