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Package: IDEViewModelRegistryImpl$1
IDEViewModelRegistryImpl$1
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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.emf.ecp.ide.view.internal.service;
15:
16: import java.io.IOException;
17: import java.util.LinkedHashMap;
18: import java.util.LinkedHashSet;
19: import java.util.List;
20: import java.util.Map;
21: import java.util.Set;
22:
23: import org.eclipse.core.resources.IResourceChangeEvent;
24: import org.eclipse.core.resources.IResourceChangeListener;
25: import org.eclipse.core.resources.IResourceDelta;
26: import org.eclipse.core.resources.ResourcesPlugin;
27: import org.eclipse.emf.common.util.URI;
28: import org.eclipse.emf.ecp.ide.spi.util.EcoreHelper;
29: import org.eclipse.emf.ecp.ide.view.service.IDEViewModelRegistry;
30: import org.eclipse.emf.ecp.ide.view.service.ViewModelEditorCallback;
31: import org.eclipse.emf.ecp.view.spi.model.VView;
32:
33: /**
34: * An implementation of the {@link IDEViewModelRegistry}.
35: *
36: * @author Eugen Neufeld
37: * @author Alexandra Buzila
38: */
39: public class IDEViewModelRegistryImpl implements IDEViewModelRegistry {
40:
41: private final Map<VView, ViewModelEditorCallback> viewModelViewModelEditorMapping = new LinkedHashMap<VView, ViewModelEditorCallback>();
42:
43: private final Map<String, Set<VView>> ecoreViewMapping = new LinkedHashMap<String, Set<VView>>();
44:
45: private final Map<VView, String> viewModelviewModelFileMapping = new LinkedHashMap<VView, String>();
46:
47: private final Map<String, IResourceChangeListener> resourceChangeListeners = new LinkedHashMap<String, IResourceChangeListener>();
48:
49: private final Map<String, Set<String>> viewToRelatedEcorePaths = new LinkedHashMap<String, Set<String>>();
50:
51: @Override
52: public void register(String ecorePath, VView viewModel) {
53:
54: final Set<String> otherRelatedWorkspaceURIs = new LinkedHashSet<String>();
55: for (final String viewModelEcorePath : viewModel.getEcorePaths()) {
56: otherRelatedWorkspaceURIs.addAll(EcoreHelper
57: .getOtherRelatedWorkspacePaths(viewModelEcorePath));
58: }
59:
60: final Set<String> otherRelatedWorkspacePaths = new LinkedHashSet<String>();
61: for (final String uri : otherRelatedWorkspaceURIs) {
62: final URI platformURI = URI.createURI(uri);
63: final StringBuilder builder = new StringBuilder();
64: for (int i = 1; i < platformURI.segmentCount(); i++) {
65: builder.append("/"); //$NON-NLS-1$
66: builder.append(URI.createURI(uri).segment(i));
67: }
68: otherRelatedWorkspacePaths.add(builder.toString());
69: }
70: viewToRelatedEcorePaths.put(ecorePath, otherRelatedWorkspacePaths);
71:
72: if (!ecoreViewMapping.containsKey(ecorePath) || ecoreViewMapping.get(ecorePath).isEmpty()) {
73: if (ecoreViewMapping.get(ecorePath) == null) {
74: ecoreViewMapping.put(ecorePath, new LinkedHashSet<VView>());
75: }
76: if (!resourceChangeListeners.containsKey(ecorePath)) {
77: addECoreChangeListener(ecorePath);
78: }
79: }
80: ecoreViewMapping.get(ecorePath).add(viewModel);
81: }
82:
83: private void addECoreChangeListener(final String ecorePath) {
84: final IResourceChangeListener listener = new IResourceChangeListener() {
85: @Override
86: public void resourceChanged(IResourceChangeEvent event) {
87: IResourceDelta delta = event.getDelta();
88:• if (delta != null) {
89:• while (delta.getAffectedChildren().length != 0) {
90: delta = delta.getAffectedChildren()[0];
91: }
92:• for (final VView view : ecoreViewMapping.get(ecorePath)) {
93: final Set<String> ecorePathsToCheck = new LinkedHashSet<String>();
94:• if (view.getEcorePaths() != null) {
95: ecorePathsToCheck.addAll(view.getEcorePaths());
96: }
97:• if (viewToRelatedEcorePaths.containsKey(ecorePath)) {
98: ecorePathsToCheck.addAll(viewToRelatedEcorePaths.get(ecorePath));
99: }
100:• for (final String path : ecorePathsToCheck) {
101:• if (delta.getResource().getFullPath().toString().contains(path)) {
102: final ViewModelEditorCallback viewModelEditorCallback = viewModelViewModelEditorMapping
103: .get(view);
104:• if (viewModelEditorCallback == null) {
105: continue;
106: }
107: viewModelEditorCallback.signalEcoreOutOfSync();
108: }
109: }
110: }
111: }
112: }
113: };
114: ResourcesPlugin.getWorkspace().addResourceChangeListener(listener);
115: resourceChangeListeners.put(ecorePath, listener);
116: }
117:
118: @Override
119: public void unregister(String registeredEcorePath, VView viewModel) {
120: if (ecoreViewMapping.containsKey(registeredEcorePath)) {
121: ecoreViewMapping.get(registeredEcorePath).remove(viewModel);
122: if (ecoreViewMapping.get(registeredEcorePath).size() == 0) {
123: final IResourceChangeListener listener = resourceChangeListeners.get(registeredEcorePath);
124: if (listener != null) {
125: ResourcesPlugin.getWorkspace().removeResourceChangeListener(listener);
126: resourceChangeListeners.remove(registeredEcorePath);
127: }
128: viewToRelatedEcorePaths.remove(registeredEcorePath);
129: }
130: }
131: }
132:
133: @Override
134: public void registerViewModelEditor(VView viewModel, ViewModelEditorCallback viewModelEditor) throws IOException {
135:
136: viewModelViewModelEditorMapping.put(viewModel, viewModelEditor);
137: // final String ecorePath = viewModel.getEcorePath();
138: // if (ecorePath == null) {
139: // return;
140: // }
141: // EcoreHelper.registerEcore(ecorePath);
142:
143: }
144:
145: @Override
146: public void unregisterViewModelEditor(VView viewModel, ViewModelEditorCallback viewModelEditor) {
147: viewModelViewModelEditorMapping.remove(viewModel);
148: final List<String> ecorePaths = viewModel.getEcorePaths();
149: for (final String ecorePath : ecorePaths) {
150: EcoreHelper.unregisterEcore(ecorePath);
151: }
152: }
153:
154: @Override
155: public void registerViewModel(VView view, String path) {
156: if (!viewModelviewModelFileMapping.containsKey(view)) {
157: viewModelviewModelFileMapping.put(view, path);
158: }
159: }
160: }