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Package: CreateNewInstaceWizard$CreateNewInstanceFileCreationPage
CreateNewInstaceWizard$CreateNewInstanceFileCreationPage
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| CreateNewInstaceWizard.CreateNewInstanceFileCreationPage(CreateNewInstaceWizard, String, IStructuredSelection) |
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| validatePage() |
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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: * Lucas Koehler - initial API and implementation
13: ******************************************************************************/
14: package org.eclipse.emfforms.internal.editor.ecore.actions;
15:
16: import java.io.IOException;
17: import java.lang.reflect.InvocationTargetException;
18: import java.util.Collections;
19: import java.util.HashMap;
20: import java.util.List;
21: import java.util.Map;
22:
23: import org.eclipse.core.resources.IFile;
24: import org.eclipse.core.resources.ResourcesPlugin;
25: import org.eclipse.core.runtime.IProgressMonitor;
26: import org.eclipse.core.runtime.IStatus;
27: import org.eclipse.core.runtime.Path;
28: import org.eclipse.core.runtime.Status;
29: import org.eclipse.emf.common.util.URI;
30: import org.eclipse.emf.ecore.EClass;
31: import org.eclipse.emf.ecore.EObject;
32: import org.eclipse.emf.ecore.resource.Resource;
33: import org.eclipse.emf.ecore.resource.ResourceSet;
34: import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
35: import org.eclipse.emf.ecore.util.EcoreUtil;
36: import org.eclipse.emf.ecore.xmi.XMLResource;
37: import org.eclipse.jface.dialogs.ErrorDialog;
38: import org.eclipse.jface.viewers.IStructuredSelection;
39: import org.eclipse.jface.viewers.StructuredSelection;
40: import org.eclipse.jface.wizard.Wizard;
41: import org.eclipse.ui.actions.WorkspaceModifyOperation;
42: import org.eclipse.ui.dialogs.WizardNewFileCreationPage;
43:
44: /**
45: * A wizard to create a new instance of an {@link EClass} and save it into a file.
46: *
47: * @author Lucas Koehler
48: *
49: */
50: public class CreateNewInstaceWizard extends Wizard {
51:
52: /**
53: * The supported extensions for created files.
54: */
55: public static final List<String> FILE_EXTENSIONS = Collections.singletonList("xmi");
56:
57: /**
58: * A formatted list of supported file extensions, suitable for display.
59: */
60: public static final String FORMATTED_FILE_EXTENSIONS = ".xmi";
61:
62: private CreateNewInstanceFileCreationPage newFileCreationPage;
63:
64: /**
65: * The EClass for which a new instance is created and saved.
66: */
67: private final EClass eClass;
68:
69: /**
70: * Default constructor.
71: *
72: * @param eClass The {@link EClass} for which a new instance is created and saved in a file
73: */
74: public CreateNewInstaceWizard(EClass eClass) {
75: this.eClass = eClass;
76: }
77:
78: /**
79: * {@inheritDoc}
80: */
81: @Override
82: public boolean performFinish() {
83:
84: // Remember the file.
85: final IFile modelFile = getModelFile();
86:
87: // Do the work within an operation.
88: final WorkspaceModifyOperation operation = new WorkspaceModifyOperation() {
89: @Override
90: protected void execute(IProgressMonitor progressMonitor) {
91: // Create a resource set
92: final ResourceSet resourceSet = new ResourceSetImpl();
93:
94: // Get the URI of the model file.
95: final URI fileURI = URI.createPlatformResourceURI(modelFile.getFullPath().toString(), true);
96:
97: // Create a resource for this file.
98: final Resource resource = resourceSet.createResource(fileURI);
99:
100: final EObject instance = EcoreUtil.create(eClass);
101: resource.getContents().add(instance);
102:
103: // Save the contents of the resource to the file system.
104: final Map<Object, Object> options = new HashMap<Object, Object>();
105: options.put(XMLResource.OPTION_ENCODING, "UTF-8");
106: options.put(XMLResource.OPTION_SCHEMA_LOCATION, Boolean.TRUE);
107: options.put(XMLResource.OPTION_LINE_WIDTH, 80);
108: try {
109: resource.save(options);
110: } catch (final IOException exception) {
111: openErrorDialog(exception);
112: return;
113: } finally {
114: progressMonitor.done();
115: }
116: }
117: };
118:
119: try {
120: getContainer().run(false, false, operation);
121: return true;
122: } catch (final InvocationTargetException exception) {
123: openErrorDialog(exception);
124: return false;
125: } catch (final InterruptedException exception) {
126: openErrorDialog(exception);
127: return false;
128: }
129: }
130:
131: /**
132: * @param exception The {@link Exception} that caused the error.
133: */
134: private void openErrorDialog(final Exception exception) {
135: final Status status = new Status(IStatus.ERROR, "org.eclipse.emfforms.editor.ecore",
136: "Could not create instance file.", exception);
137: ErrorDialog.openError(getShell(), "Error", null, status);
138: }
139:
140: /**
141: * The wizard page to select in which file the new instance will be saved.
142: */
143: public class CreateNewInstanceFileCreationPage extends WizardNewFileCreationPage {
144: /**
145: * Default constructor.
146: *
147: * @param pageId This page's id
148: * @param selection The current selection
149: */
150: public CreateNewInstanceFileCreationPage(String pageId, IStructuredSelection selection) {
151: super(pageId, selection);
152: }
153:
154: /**
155: * The framework calls this to see if the file is correct.
156: * <!-- begin-user-doc -->
157: * <!-- end-user-doc -->
158: *
159: * @generated
160: */
161: @Override
162: protected boolean validatePage() {
163:• if (super.validatePage()) {
164: final String extension = new Path(getFileName()).getFileExtension();
165:• if (extension == null || !FILE_EXTENSIONS.contains(extension)) {
166: setErrorMessage("Wrong file extension: Use " + FORMATTED_FILE_EXTENSIONS);
167: return false;
168: }
169: return true;
170: }
171: return false;
172: }
173:
174: public IFile getModelFile() {
175: return ResourcesPlugin.getWorkspace().getRoot().getFile(getContainerFullPath().append(getFileName()));
176: }
177: }
178:
179: /**
180: * {@inheritDoc}
181: */
182: @Override
183: public void addPages() {
184: // Create a page, set the title, and the initial model file name.
185: newFileCreationPage = new CreateNewInstanceFileCreationPage("CreatePage", new StructuredSelection(eClass));
186: final String className = eClass.getName();
187: newFileCreationPage.setTitle("Create New Instance In File");
188: newFileCreationPage.setDescription("Create a new file to save a new instance of EClass " + className + ".");
189: newFileCreationPage.setFileName(className + "." + FILE_EXTENSIONS.get(0));
190: addPage(newFileCreationPage);
191: }
192:
193: /**
194: * @return the file from the file creation page.
195: */
196: public IFile getModelFile() {
197: return newFileCreationPage.getModelFile();
198: }
199:
200: }