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Package: EMFFormsRendererFactoryImpl
EMFFormsRendererFactoryImpl
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| EMFFormsRendererFactoryImpl() |
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| addEMFFormsAdditionalRendererService(EMFFormsAdditionalRendererService) |
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| addEMFFormsRendererService(EMFFormsRendererService) |
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| clearRenderers() |
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| getAdditionalRendererInstances(VElement, ViewModelContext) |
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| getRendererInstance(VElement, ViewModelContext) |
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| removeEMFFormsAdditionalRendererService(EMFFormsAdditionalRendererService) |
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| removeEMFFormsRendererService(EMFFormsRendererService) |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2015 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.swt.core;
15:
16: import java.util.Collection;
17: import java.util.LinkedHashSet;
18: import java.util.Set;
19: import java.util.concurrent.CopyOnWriteArraySet;
20:
21: import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
22: import org.eclipse.emf.ecp.view.spi.model.VElement;
23: import org.eclipse.emfforms.spi.swt.core.AbstractAdditionalSWTRenderer;
24: import org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer;
25: import org.eclipse.emfforms.spi.swt.core.EMFFormsAdditionalRendererService;
26: import org.eclipse.emfforms.spi.swt.core.EMFFormsNoRendererException;
27: import org.eclipse.emfforms.spi.swt.core.EMFFormsRendererFactory;
28: import org.eclipse.emfforms.spi.swt.core.EMFFormsRendererService;
29:
30: /**
31: * The default implementation of the EMFFormsRendererFactory.
32: *
33: * @author Eugen Neufeld
34: *
35: */
36: public class EMFFormsRendererFactoryImpl implements EMFFormsRendererFactory {
37:
38: private final Set<EMFFormsRendererService<VElement>> rendererServices = new CopyOnWriteArraySet<EMFFormsRendererService<VElement>>();
39: private final Set<EMFFormsAdditionalRendererService<VElement>> additionalRendererServices = new CopyOnWriteArraySet<EMFFormsAdditionalRendererService<VElement>>();
40:
41: /**
42: * Called by the initializer to add an {@link EMFFormsRendererService}.
43: *
44: * @param rendererService The EMFFormsRendererService to add
45: */
46: public void addEMFFormsRendererService(EMFFormsRendererService<VElement> rendererService) {
47: rendererServices.add(rendererService);
48: }
49:
50: /**
51: * Called by the initializer to remove an {@link EMFFormsRendererService}.
52: *
53: * @param rendererService The EMFFormsRendererService to remove
54: */
55: public void removeEMFFormsRendererService(EMFFormsRendererService<VElement> rendererService) {
56: rendererServices.remove(rendererService);
57: }
58:
59: /**
60: * Called by the initializer to add an {@link EMFFormsAdditionalRendererService}.
61: *
62: * @param rendererService The EMFFormsAdditionalRendererService to add
63: */
64: protected void addEMFFormsAdditionalRendererService(EMFFormsAdditionalRendererService<VElement> rendererService) {
65: additionalRendererServices.add(rendererService);
66: }
67:
68: /**
69: * Called by the initializer to remove an {@link EMFFormsAdditionalRendererService}.
70: *
71: * @param rendererService The EMFFormsAdditionalRendererService to remove
72: */
73: protected void removeEMFFormsAdditionalRendererService(
74: EMFFormsAdditionalRendererService<VElement> rendererService) {
75: additionalRendererServices.remove(rendererService);
76: }
77:
78: /**
79: * {@inheritDoc}
80: *
81: * @throws EMFFormsNoRendererException
82: *
83: * @see EMFFormsRendererFactory#getRendererInstance(VElement,ViewModelContext)
84: */
85: @Override
86: public <VELEMENT extends VElement> AbstractSWTRenderer<VElement> getRendererInstance(VELEMENT vElement,
87: ViewModelContext viewModelContext) throws EMFFormsNoRendererException {
88:• if (rendererServices.isEmpty()) {
89: throw new EMFFormsNoRendererException("No EMFFormsRendererService available!"); //$NON-NLS-1$
90: }
91: double highestPriority = -1;
92: EMFFormsRendererService<VElement> bestService = null;
93:• for (final EMFFormsRendererService<VElement> rendererService : rendererServices) {
94: final double priority = rendererService.isApplicable(vElement, viewModelContext);
95:• if (priority > highestPriority) {
96: highestPriority = priority;
97: bestService = rendererService;
98: }
99: }
100:• if (bestService == null) {
101: throw new EMFFormsNoRendererException(String.format(
102: "No fitting EMFFormsRendererService for %1$s available!", vElement.eClass().getName())); //$NON-NLS-1$
103: }
104: final AbstractSWTRenderer<VElement> rendererInstance = bestService.getRendererInstance(vElement,
105: viewModelContext);
106:• if (rendererInstance == null) {
107: throw new EMFFormsNoRendererException(String.format(
108: "No fitting EMFFormsRendererService for %1$s available!", vElement.eClass().getName())); //$NON-NLS-1$
109: }
110: try {
111: rendererInstance.init();
112: // BEGIN SUPRESS CATCH EXCEPTION
113: } catch (final RuntimeException e) {
114: throw new EMFFormsNoRendererException(e);
115: }
116: // END SUPRESS CATCH EXCEPTION
117: return rendererInstance;
118: }
119:
120: /**
121: * {@inheritDoc}
122: *
123: * @see EMFFormsRendererFactory#getAdditionalRendererInstances(VElement, ViewModelContext)
124: */
125: @Override
126: public Collection<AbstractAdditionalSWTRenderer<VElement>> getAdditionalRendererInstances(VElement vElement,
127: ViewModelContext viewModelContext) {
128: final Set<AbstractAdditionalSWTRenderer<VElement>> renderers = new LinkedHashSet<AbstractAdditionalSWTRenderer<VElement>>();
129:
130:• for (final EMFFormsAdditionalRendererService<VElement> rendererService : additionalRendererServices) {
131:• if (rendererService.isApplicable(vElement, viewModelContext)) {
132: final Collection<AbstractAdditionalSWTRenderer<VElement>> rendererInstances = rendererService
133: .getRendererInstances(
134: vElement, viewModelContext);
135:• for (final AbstractAdditionalSWTRenderer<VElement> rendererInstance : rendererInstances) {
136: rendererInstance.init();
137: renderers.add(rendererInstance);
138: }
139: }
140: }
141:
142: return renderers;
143: }
144:
145: /**
146: * Method for Tests to clear all services.
147: */
148: public void clearRenderers() {
149: rendererServices.clear();
150: }
151: }