| /******************************************************************************* |
| * Copyright (c) 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| /* |
| * Created on Feb 17, 2005 |
| * |
| * TODO To change the template for this generated file go to |
| * Window - Preferences - Java - Code Style - Code Templates |
| */ |
| package org.eclipse.jst.j2ee.navigator.internal; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.wst.common.componentcore.ArtifactEdit; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.EditModel; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.EditModelEvent; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.EditModelListener; |
| |
| /** |
| * @author Admin |
| * |
| * TODO To change the template for this generated type comment go to |
| * Window - Preferences - Java - Code Style - Code Templates |
| */ |
| public class FlexibleEMFModelManager extends EMFModelManager implements EditModelListener{ |
| |
| private List rootObjects = new ArrayList(); |
| private static final Object[] EMPTY_OBJECT = new Object[0]; |
| private final List artifactEdits = new ArrayList(); |
| private final Map artifactEditToRootObject = new HashMap(); |
| |
| /** |
| * @param aProject |
| * @param provider |
| */ |
| public FlexibleEMFModelManager(IProject aProject, EMFRootObjectProvider provider) { |
| super(aProject,provider); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.j2ee.navigator.internal.EMFModelManager#getModels() |
| */ |
| public Object[] getModels() { |
| try { |
| |
| IProject project = getProject(); |
| if ( project== null || !project.isAccessible()) |
| return EMPTY_OBJECT; |
| |
| synchronized (rootObjects) { |
| if (!isValid(rootObjects)) { |
| rootObjects = getRootObjects(); |
| } |
| } |
| } catch (Exception ex) { |
| ex.printStackTrace(); |
| } |
| if (rootObjects != null) { |
| return rootObjects.toArray() ; |
| } |
| return EMPTY_OBJECT; |
| |
| } |
| |
| private boolean isValid(List rootObjects) { |
| if (rootObjects == null || rootObjects.size()==0) |
| return false; |
| for (int x=0; x< rootObjects.size(); ++x) { |
| EObject eObject = (EObject) rootObjects.get(x); |
| if (eObject != null && eObject.eResource() == null) |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * @param project |
| * @return |
| */ |
| private List getRootObjects() { |
| List artifacts = getArtifactEdits(); |
| List flexibleObjects = new ArrayList(); |
| ArtifactEdit artifactEdit = null; |
| EObject contentModelRoot = null; |
| for (int x=0; x< artifacts.size(); ++x) { |
| artifactEdit = (ArtifactEdit)artifacts.get(x); |
| contentModelRoot = artifactEdit.getContentModelRoot(); |
| if (contentModelRoot != null) { |
| flexibleObjects.add(contentModelRoot); |
| if (!rootObjects.contains(contentModelRoot)) |
| rootObjects.add(contentModelRoot); |
| artifactEditToRootObject.put(artifactEdit,contentModelRoot); |
| } |
| } |
| return flexibleObjects; |
| } |
| |
| protected List getArtifactEdits() { |
| |
| IProject project = getProject(); |
| if (project == null) |
| return null; |
| synchronized (artifactEdits) { |
| if (artifactEdits.size() ==0 && project.isAccessible()) { |
| ArtifactEdit artifactEdit = null; |
| try{ |
| artifactEdit = ArtifactEdit.getArtifactEditForRead(project); |
| if(artifactEdit != null) { |
| artifactEdits.add(artifactEdit); |
| artifactEdit.addListener(this); |
| } |
| } catch(Exception e){ |
| e.printStackTrace(); |
| } |
| } |
| } |
| return artifactEdits; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.j2ee.navigator.internal.EMFModelManager#dispose() |
| */ |
| public void dispose() { |
| if (artifactEdits != null) { |
| for (int x=0; x< artifactEdits.size(); ++x) { |
| ArtifactEdit artifactEdit = (ArtifactEdit)artifactEdits.get(x); |
| if (artifactEdit != null) { |
| artifactEdit.removeListener(this); |
| artifactEdit.dispose(); |
| } |
| |
| } |
| } |
| rootObjects.clear(); |
| |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.wst.common.internal.emfworkbench.integration.EditModelListener#editModelChanged(org.eclipse.wst.common.internal.emfworkbench.integration.EditModelEvent) |
| */ |
| public void editModelChanged(EditModelEvent anEvent) { |
| IProject affectedProject = anEvent.getEditModel().getProject(); |
| |
| switch (anEvent.getEventCode()) { |
| case EditModelEvent.UNLOADED_RESOURCE : |
| case EditModelEvent.REMOVED_RESOURCE : { |
| Object oldRootObject = removeRootObject(anEvent.getEditModel(),affectedProject); |
| getRootObjects(); |
| if (oldRootObject != null) |
| notifyListeners(affectedProject); |
| } |
| break; |
| case EditModelEvent.SAVE : { |
| Object oldRootObject = getRootObject(anEvent.getEditModel(),affectedProject); |
| if (oldRootObject == null) |
| notifyListeners(affectedProject); |
| } |
| break; |
| case EditModelEvent.PRE_DISPOSE : |
| dispose(anEvent.getEditModel(),affectedProject); |
| break; |
| default : |
| break; |
| } |
| |
| } |
| |
| |
| |
| /** |
| * @param editModel |
| * @param affectedProject |
| * @return |
| */ |
| private Object getRootObject(EditModel editModel, IProject project) { |
| ArtifactEdit artifactEdit = getArtifactEdit(editModel,project); |
| if (artifactEdit != null) { |
| return artifactEditToRootObject.get(artifactEdit); |
| } |
| return null; |
| } |
| |
| /** |
| * @param editModel |
| * @param affectedProject |
| * @return |
| */ |
| private Object removeRootObject(EditModel editModel, IProject project) { |
| ArtifactEdit artifactEdit = getArtifactEdit(editModel,project); |
| if (artifactEdit != null) { |
| rootObjects.remove(artifactEditToRootObject.get(artifactEdit)); |
| artifactEditToRootObject.remove(artifactEdit); |
| } |
| return artifactEdit; |
| } |
| |
| /** |
| * @param affectedProject |
| * @param editModel |
| */ |
| private void dispose( EditModel editModel, IProject project) { |
| ArtifactEdit artifactEdit = getArtifactEdit(editModel,project); |
| if (artifactEdit != null) { |
| artifactEdit.removeListener(this); |
| artifactEdits.remove(artifactEdit); |
| artifactEditToRootObject.remove(artifactEdit); |
| } |
| |
| } |
| |
| private ArtifactEdit getArtifactEdit(EditModel editModel, IProject project) { |
| if (artifactEdits != null) { |
| for (int x=0; x<artifactEdits.size(); ++x) { |
| ArtifactEdit artifactEdit = (ArtifactEdit)artifactEdits.get(x); |
| if (artifactEdit.hasEditModel(editModel)) |
| return artifactEdit; |
| } |
| } |
| return null; |
| } |
| |
| } |