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Added context menu entry to generate class diagram file (#4).
.klaviz files can know be generated from Package Explorer selections via context menu entry. This replaces the synthesize class diagram functionality.
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Carsten Sprung
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Feb 22, 2016
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...kieler.klassviz/src/de/cau/cs/kieler/klassviz/handlers/ContainsStoredSelectionTester.java
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...s.kieler.klassviz/src/de/cau/cs/kieler/klassviz/handlers/GenerateKlassVizFileHandler.java
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| /* | ||
| * KlassViz - Kieler Class Diagram Visualization | ||
| * | ||
| * A part of OpenKieler | ||
| * https://github.com/OpenKieler | ||
| * | ||
| * Copyright 2014 by | ||
| * + Christian-Albrechts-University of Kiel | ||
| * + Department of Computer Science | ||
| * + Real-Time and Embedded Systems Group | ||
| * | ||
| * This code is provided under the terms of the Eclipse Public License (EPL). | ||
| * See the file epl-v10.html for the license text. | ||
| */ | ||
| package de.cau.cs.kieler.klassviz.handlers; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.Collections; | ||
| import java.util.HashSet; | ||
| import java.util.Iterator; | ||
|
|
||
| import org.eclipse.core.commands.AbstractHandler; | ||
| import org.eclipse.core.commands.ExecutionEvent; | ||
| import org.eclipse.core.commands.ExecutionException; | ||
| import org.eclipse.core.runtime.IPath; | ||
| import org.eclipse.core.runtime.IStatus; | ||
| import org.eclipse.core.runtime.Status; | ||
| import org.eclipse.emf.common.util.URI; | ||
| import org.eclipse.emf.ecore.resource.Resource; | ||
| import org.eclipse.emf.ecore.resource.ResourceSet; | ||
| import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl; | ||
| import org.eclipse.jdt.core.IJavaElement; | ||
| import org.eclipse.jdt.core.IJavaProject; | ||
| import org.eclipse.jdt.core.JavaModelException; | ||
| import org.eclipse.jface.viewers.IStructuredSelection; | ||
| import org.eclipse.ui.PlatformUI; | ||
| import org.eclipse.ui.dialogs.SaveAsDialog; | ||
| import org.eclipse.ui.handlers.HandlerUtil; | ||
| import org.eclipse.ui.statushandlers.StatusManager; | ||
|
|
||
| import com.google.inject.Guice; | ||
|
|
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| import de.cau.cs.kieler.klassviz.model.classdata.ClassdataFactory; | ||
| import de.cau.cs.kieler.klassviz.model.classdata.KClassModel; | ||
| import de.cau.cs.kieler.klassviz.synthesis.JdtModelTransformation; | ||
|
|
||
| /** | ||
| * Handler to generate a KlassViz file from selected java packages, classes and/or classmembers. | ||
| * The save location is queried from the user in a save as dialog and the selected items are serialized | ||
| * into a .klaviz file with then can be visualized as a class diagram. | ||
| */ | ||
| public final class GenerateKlassVizFileHandler extends AbstractHandler { | ||
|
|
||
| static final String PLUGIN_ID = "de.cau.cs.kieler.klassviz"; | ||
| final ClassdataFactory factory = ClassdataFactory.eINSTANCE; | ||
|
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|
|
||
| /** | ||
| * {@inheritDoc} | ||
| */ | ||
| public Object execute(ExecutionEvent event) throws ExecutionException { | ||
| IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event); | ||
| KClassModel classModel = generateClassModel(selection); | ||
| URI fileUri = URI.createPlatformResourceURI(handleWorkspaceBrowse(), true); | ||
| saveclassModel(classModel, fileUri); | ||
| return null; | ||
| } | ||
|
|
||
| /** | ||
| * Generate a {@link KClassModel} from the given selection. | ||
| * | ||
| * @param selection | ||
| * the selected java elements to generate the model from. | ||
| * @return the generated model. | ||
| */ | ||
| private KClassModel generateClassModel(IStructuredSelection selection) { | ||
|
|
||
| // Transform the model | ||
| JdtModelTransformation transformation = Guice.createInjector().getInstance( | ||
| JdtModelTransformation.class); | ||
| KClassModel classModel; | ||
| try { | ||
| classModel = transformation.transform(selection); | ||
| } catch (JavaModelException exception) { | ||
| IStatus status = new Status(IStatus.ERROR, PLUGIN_ID, | ||
| "Error while transforming Java model.", exception); | ||
| StatusManager.getManager().handle(status, StatusManager.SHOW); | ||
| return null; | ||
| } | ||
|
|
||
| // When the List is still empty, there was no IJavaElement in the | ||
| // Selection and nothing can be serialized. | ||
| if (!classModel.getPackages().isEmpty()) { | ||
| // Save the selection. | ||
| HashSet<IJavaProject> projects = new HashSet<IJavaProject>(); | ||
| Iterator<?> selectionIter = selection.iterator(); | ||
| while (selectionIter.hasNext()) { | ||
| Object obj = selectionIter.next(); | ||
| if (obj instanceof IJavaElement) { | ||
| projects.add(((IJavaElement) obj).getJavaProject()); | ||
| } | ||
| } | ||
| for (IJavaProject project : projects) { | ||
| classModel.getJavaProjects().add(project.getElementName()); | ||
| } | ||
| } | ||
| return classModel; | ||
| } | ||
|
|
||
| /** | ||
| * Save the given class model at the given URI. | ||
| * | ||
| * @param classModel | ||
| * the classmodel to save. | ||
| * @param fileUri | ||
| * the URI to save the model to. | ||
| */ | ||
| private void saveclassModel(KClassModel classModel, URI fileUri) { | ||
| if (classModel == null || fileUri == null) { | ||
| return; | ||
| } | ||
|
|
||
| // Create a resource set. | ||
| ResourceSet resourceSet = new ResourceSetImpl(); | ||
| // ResourceSet testResourceSet = new ResourceSetImpl(); | ||
| // Create a resource for this file. | ||
| Resource resource = resourceSet.createResource(fileUri); | ||
| // Resource testResource = testResourceSet.createResource(URI.createFileURI("asdf/model.xmi")); | ||
| // Add the model object to the contents. | ||
| resource.getContents().add(classModel); | ||
| // testResource.getContents().add(classModel); | ||
|
|
||
| // Save the contents of the resource to the file system. | ||
| try { | ||
| resource.save(Collections.EMPTY_MAP); | ||
| // testResource.save(Collections.EMPTY_MAP); | ||
| } catch (IOException exception) { | ||
| IStatus status = new Status(IStatus.ERROR, PLUGIN_ID, | ||
| "Could not save selection to project meta data.", exception); | ||
| StatusManager.getManager().handle(status); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Query the user for a file path and name. | ||
| * | ||
| * @return the file URI as a string with extension {@code ".klaviz"}. | ||
| */ | ||
| private String handleWorkspaceBrowse() { | ||
| // TODO a better workspace selection dialog would be good, but it seems | ||
| // such a thing does not exist in Eclipse for some reason | ||
| final SaveAsDialog fileDialog = | ||
| new SaveAsDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell()); | ||
| final int status = fileDialog.open(); | ||
| if (status == SaveAsDialog.OK) { | ||
| final IPath filePath = fileDialog.getResult(); | ||
| return filePath.removeFileExtension().addFileExtension("klaviz").toString(); | ||
| } else { | ||
| return null; | ||
| } | ||
| } | ||
| } |
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