package org.eclipse.uml2.diagram.common.wholediagram;
import java.io.IOException;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.operations.OperationHistoryFactory;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.CanonicalEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.parts.IDiagramWorkbenchPart;
import org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.DiagramDocumentEditor;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.emf.core.GMFEditingDomainFactory;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.FileEditorInput;
public abstract class UMLInitDiagramFacade {
protected abstract Diagram createDiagramView(EObject modelRoot);
private Resource myRestoredDiagramResource;
private Resource myModelResource;
private IDiagramWorkbenchPart myDiagramWorkbenchPart;
private IFile myModelFile;
private IFile myDagramFile;
private final String diagram_editor_id;
public UMLInitDiagramFacade(IFile modelFile, IFile diagramFile, String deID) {
myModelFile = modelFile;
myDagramFile = diagramFile;
diagram_editor_id = deID;
}
public void close() {
if (myDiagramWorkbenchPart != null && myDiagramWorkbenchPart instanceof IEditorPart) {
IWorkbenchPage page = myDiagramWorkbenchPart.getSite().getPage();
page.closeEditor((IEditorPart) myDiagramWorkbenchPart, false);
}
myDiagramWorkbenchPart = null;
myRestoredDiagramResource.unload();
myRestoredDiagramResource = null;
if (myModelResource != null) {
myModelResource.unload();
myModelResource = null;
}
}
public Diagram getDiagramView() throws ExecutionException, IOException, CoreException {
return initializeDiagramFromDomainModel(myModelFile, myDagramFile);
}
private Diagram openDiagram(Resource diagram) throws PartInitException {
String path = diagram.getURI().toPlatformString(true);
IResource workspaceResource = ResourcesPlugin.getWorkspace().getRoot().findMember(new Path(path));
if (workspaceResource instanceof IFile) {
IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
IEditorPart editor = page.openEditor(new FileEditorInput((IFile) workspaceResource), diagram_editor_id);
return ((DiagramDocumentEditor)editor).getDiagram();
}
return null;
}
public static void refreshDiagram(Diagram diagram) {
EObject modelElement = diagram.getElement();
List<?> editPolicies = CanonicalEditPolicy.getRegisteredEditPolicies(modelElement);
for (Iterator<?> it = editPolicies.iterator(); it.hasNext();) {
CanonicalEditPolicy nextEditPolicy = (CanonicalEditPolicy) it.next();
nextEditPolicy.refresh();
}
}
private Diagram initializeDiagramFromDomainModel(IFile modelFile, IFile diagramFile) throws ExecutionException, IOException, CoreException {
diagramFile.setCharset("UTF-8", new NullProgressMonitor()); //$NON-NLS-1$
TransactionalEditingDomain editingDomain = GMFEditingDomainFactory.INSTANCE.createEditingDomain();
ResourceSet resourceSet = editingDomain.getResourceSet();
final EObject modelRoot = getModelRoot(modelFile, resourceSet);
Diagram diagram = createDiagramView(modelRoot);
myRestoredDiagramResource = createEmptyResource(resourceSet, diagramFile);
addDiagramToResource(myRestoredDiagramResource, diagram, editingDomain, diagramFile);
myRestoredDiagramResource.save(Collections.emptyMap());
return openDiagram(myRestoredDiagramResource);
}
private void addDiagramToResource(final Resource diagramResource, final Diagram diagram, TransactionalEditingDomain editingDomain, IFile diagramFile) throws ExecutionException {
List affectedFiles = new LinkedList();
affectedFiles.add(diagramFile);
AbstractTransactionalCommand command = new AbstractTransactionalCommand(editingDomain, "Initializing diagram contents", affectedFiles) { //$NON-NLS-1$
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
diagramResource.getContents().add(diagram);
return CommandResult.newOKCommandResult();
}
};
OperationHistoryFactory.getOperationHistory().execute(command, new NullProgressMonitor(), null);
}
private Resource createEmptyResource(ResourceSet resourceSet, IFile diagramFile) {
org.eclipse.emf.common.util.URI diagramModelURI = org.eclipse.emf.common.util.URI.createPlatformResourceURI(diagramFile.getFullPath().toString(), true);
final Resource diagramResource = resourceSet.createResource(diagramModelURI);
return diagramResource;
}
private EObject getModelRoot(final IFile modelFile, ResourceSet resourceSet) {
URI domainModelURI = URI.createPlatformResourceURI(modelFile.getFullPath().toString(), false);
myModelResource = resourceSet.getResource(domainModelURI, true);
EObject modelRoot = (EObject) myModelResource.getContents().get(0);
return modelRoot;
}
}