/*******************************************************************************
* Copyright (c) 2006-2012
* Software Technology Group, Dresden University of Technology
* DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026
*
* 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:
* Software Technology Group - TU Dresden, Germany;
* DevBoost GmbH - Berlin, Germany
* - initial API and implementation
******************************************************************************/
package org.reuseware.coconut.compositionprogram.diagram.navigator;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import org.eclipse.core.resources.IFile;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.workspace.util.WorkspaceSynchronizer;
import org.eclipse.gmf.runtime.emf.core.GMFEditingDomainFactory;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.navigator.ICommonContentExtensionSite;
import org.eclipse.ui.navigator.ICommonContentProvider;
import org.reuseware.coconut.compositionprogram.diagram.edit.parts.CompositionLinkEditPart;
import org.reuseware.coconut.compositionprogram.diagram.edit.parts.CompositionProgramEditPart;
import org.reuseware.coconut.compositionprogram.diagram.edit.parts.FragmentInstanceEditPart;
import org.reuseware.coconut.compositionprogram.diagram.edit.parts.PortInstanceEditPart;
import org.reuseware.coconut.compositionprogram.diagram.part.CompositionprogramVisualIDRegistry;
import org.reuseware.coconut.compositionprogram.diagram.part.Messages;
/**
* @generated
*/
public class CompositionprogramNavigatorContentProvider implements
ICommonContentProvider {
/**
* @generated
*/
private static final Object[] EMPTY_ARRAY = new Object[0];
/**
* @generated
*/
private Viewer myViewer;
/**
* @generated
*/
private AdapterFactoryEditingDomain myEditingDomain;
/**
* @generated
*/
private WorkspaceSynchronizer myWorkspaceSynchronizer;
/**
* @generated
*/
private Runnable myViewerRefreshRunnable;
/**
* @generated
*/
@SuppressWarnings({ "unchecked", "serial", "rawtypes" })
public CompositionprogramNavigatorContentProvider() {
TransactionalEditingDomain editingDomain = GMFEditingDomainFactory.INSTANCE
.createEditingDomain();
myEditingDomain = (AdapterFactoryEditingDomain) editingDomain;
myEditingDomain.setResourceToReadOnlyMap(new HashMap() {
public Object get(Object key) {
if (!containsKey(key)) {
put(key, Boolean.TRUE);
}
return super.get(key);
}
});
myViewerRefreshRunnable = new Runnable() {
public void run() {
if (myViewer != null) {
myViewer.refresh();
}
}
};
myWorkspaceSynchronizer = new WorkspaceSynchronizer(editingDomain,
new WorkspaceSynchronizer.Delegate() {
public void dispose() {
}
public boolean handleResourceChanged(final Resource resource) {
unloadAllResources();
asyncRefresh();
return true;
}
public boolean handleResourceDeleted(Resource resource) {
unloadAllResources();
asyncRefresh();
return true;
}
public boolean handleResourceMoved(Resource resource,
final URI newURI) {
unloadAllResources();
asyncRefresh();
return true;
}
});
}
/**
* @generated
*/
public void dispose() {
myWorkspaceSynchronizer.dispose();
myWorkspaceSynchronizer = null;
myViewerRefreshRunnable = null;
myViewer = null;
unloadAllResources();
((TransactionalEditingDomain) myEditingDomain).dispose();
myEditingDomain = null;
}
/**
* @generated
*/
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
myViewer = viewer;
}
/**
* @generated
*/
void unloadAllResources() {
for (Resource nextResource : myEditingDomain.getResourceSet()
.getResources()) {
nextResource.unload();
}
}
/**
* @generated
*/
void asyncRefresh() {
if (myViewer != null && !myViewer.getControl().isDisposed()) {
myViewer.getControl().getDisplay()
.asyncExec(myViewerRefreshRunnable);
}
}
/**
* @generated
*/
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
/**
* @generated
*/
public void restoreState(IMemento aMemento) {
}
/**
* @generated
*/
public void saveState(IMemento aMemento) {
}
/**
* @generated
*/
public void init(ICommonContentExtensionSite aConfig) {
}
/**
* @generated
*/
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof IFile) {
IFile file = (IFile) parentElement;
URI fileURI = URI.createPlatformResourceURI(file.getFullPath()
.toString(), true);
Resource resource = myEditingDomain.getResourceSet().getResource(
fileURI, true);
ArrayList<CompositionprogramNavigatorItem> result = new ArrayList<CompositionprogramNavigatorItem>();
ArrayList<View> topViews = new ArrayList<View>(resource
.getContents().size());
for (EObject o : resource.getContents()) {
if (o instanceof View) {
topViews.add((View) o);
}
}
result.addAll(createNavigatorItems(
selectViewsByType(topViews,
CompositionProgramEditPart.MODEL_ID), file, false));
return result.toArray();
}
if (parentElement instanceof CompositionprogramNavigatorGroup) {
CompositionprogramNavigatorGroup group = (CompositionprogramNavigatorGroup) parentElement;
return group.getChildren();
}
if (parentElement instanceof CompositionprogramNavigatorItem) {
CompositionprogramNavigatorItem navigatorItem = (CompositionprogramNavigatorItem) parentElement;
if (navigatorItem.isLeaf() || !isOwnView(navigatorItem.getView())) {
return EMPTY_ARRAY;
}
return getViewChildren(navigatorItem.getView(), parentElement);
}
return EMPTY_ARRAY;
}
/**
* @generated
*/
private Object[] getViewChildren(View view, Object parentElement) {
switch (CompositionprogramVisualIDRegistry.getVisualID(view)) {
case CompositionLinkEditPart.VISUAL_ID: {
LinkedList<CompositionprogramAbstractNavigatorItem> result = new LinkedList<CompositionprogramAbstractNavigatorItem>();
Edge sv = (Edge) view;
CompositionprogramNavigatorGroup target = new CompositionprogramNavigatorGroup(
Messages.NavigatorGroupName_CompositionLink_4001_target,
"icons/linkTargetNavigatorGroup.gif", parentElement); //$NON-NLS-1$
CompositionprogramNavigatorGroup source = new CompositionprogramNavigatorGroup(
Messages.NavigatorGroupName_CompositionLink_4001_source,
"icons/linkSourceNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection<View> connectedViews;
connectedViews = getLinksTargetByType(Collections.singleton(sv),
CompositionprogramVisualIDRegistry
.getType(PortInstanceEditPart.VISUAL_ID));
target.addChildren(createNavigatorItems(connectedViews, target,
true));
connectedViews = getLinksSourceByType(Collections.singleton(sv),
CompositionprogramVisualIDRegistry
.getType(PortInstanceEditPart.VISUAL_ID));
source.addChildren(createNavigatorItems(connectedViews, source,
true));
if (!target.isEmpty()) {
result.add(target);
}
if (!source.isEmpty()) {
result.add(source);
}
return result.toArray();
}
case PortInstanceEditPart.VISUAL_ID: {
LinkedList<CompositionprogramAbstractNavigatorItem> result = new LinkedList<CompositionprogramAbstractNavigatorItem>();
Node sv = (Node) view;
CompositionprogramNavigatorGroup incominglinks = new CompositionprogramNavigatorGroup(
Messages.NavigatorGroupName_PortInstance_3001_incominglinks,
"icons/incomingLinksNavigatorGroup.gif", parentElement); //$NON-NLS-1$
CompositionprogramNavigatorGroup outgoinglinks = new CompositionprogramNavigatorGroup(
Messages.NavigatorGroupName_PortInstance_3001_outgoinglinks,
"icons/outgoingLinksNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection<View> connectedViews;
connectedViews = getIncomingLinksByType(Collections.singleton(sv),
CompositionprogramVisualIDRegistry
.getType(CompositionLinkEditPart.VISUAL_ID));
incominglinks.addChildren(createNavigatorItems(connectedViews,
incominglinks, true));
connectedViews = getOutgoingLinksByType(Collections.singleton(sv),
CompositionprogramVisualIDRegistry
.getType(CompositionLinkEditPart.VISUAL_ID));
outgoinglinks.addChildren(createNavigatorItems(connectedViews,
outgoinglinks, true));
if (!incominglinks.isEmpty()) {
result.add(incominglinks);
}
if (!outgoinglinks.isEmpty()) {
result.add(outgoinglinks);
}
return result.toArray();
}
case CompositionProgramEditPart.VISUAL_ID: {
LinkedList<CompositionprogramAbstractNavigatorItem> result = new LinkedList<CompositionprogramAbstractNavigatorItem>();
Diagram sv = (Diagram) view;
CompositionprogramNavigatorGroup links = new CompositionprogramNavigatorGroup(
Messages.NavigatorGroupName_CompositionProgram_1000_links,
"icons/linksNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection<View> connectedViews;
connectedViews = getChildrenByType(Collections.singleton(sv),
CompositionprogramVisualIDRegistry
.getType(FragmentInstanceEditPart.VISUAL_ID));
result.addAll(createNavigatorItems(connectedViews, parentElement,
false));
connectedViews = getDiagramLinksByType(Collections.singleton(sv),
CompositionprogramVisualIDRegistry
.getType(CompositionLinkEditPart.VISUAL_ID));
links.addChildren(createNavigatorItems(connectedViews, links, false));
if (!links.isEmpty()) {
result.add(links);
}
return result.toArray();
}
case FragmentInstanceEditPart.VISUAL_ID: {
LinkedList<CompositionprogramAbstractNavigatorItem> result = new LinkedList<CompositionprogramAbstractNavigatorItem>();
Node sv = (Node) view;
Collection<View> connectedViews;
connectedViews = getChildrenByType(Collections.singleton(sv),
CompositionprogramVisualIDRegistry
.getType(PortInstanceEditPart.VISUAL_ID));
result.addAll(createNavigatorItems(connectedViews, parentElement,
false));
return result.toArray();
}
}
return EMPTY_ARRAY;
}
/**
* @generated
*/
private Collection<View> getLinksSourceByType(Collection<Edge> edges,
String type) {
LinkedList<View> result = new LinkedList<View>();
for (Edge nextEdge : edges) {
View nextEdgeSource = nextEdge.getSource();
if (type.equals(nextEdgeSource.getType())
&& isOwnView(nextEdgeSource)) {
result.add(nextEdgeSource);
}
}
return result;
}
/**
* @generated
*/
private Collection<View> getLinksTargetByType(Collection<Edge> edges,
String type) {
LinkedList<View> result = new LinkedList<View>();
for (Edge nextEdge : edges) {
View nextEdgeTarget = nextEdge.getTarget();
if (type.equals(nextEdgeTarget.getType())
&& isOwnView(nextEdgeTarget)) {
result.add(nextEdgeTarget);
}
}
return result;
}
/**
* @generated
*/
private Collection<View> getOutgoingLinksByType(
Collection<? extends View> nodes, String type) {
LinkedList<View> result = new LinkedList<View>();
for (View nextNode : nodes) {
result.addAll(selectViewsByType(nextNode.getSourceEdges(), type));
}
return result;
}
/**
* @generated
*/
private Collection<View> getIncomingLinksByType(
Collection<? extends View> nodes, String type) {
LinkedList<View> result = new LinkedList<View>();
for (View nextNode : nodes) {
result.addAll(selectViewsByType(nextNode.getTargetEdges(), type));
}
return result;
}
/**
* @generated
*/
private Collection<View> getChildrenByType(
Collection<? extends View> nodes, String type) {
LinkedList<View> result = new LinkedList<View>();
for (View nextNode : nodes) {
result.addAll(selectViewsByType(nextNode.getChildren(), type));
}
return result;
}
/**
* @generated
*/
private Collection<View> getDiagramLinksByType(
Collection<Diagram> diagrams, String type) {
ArrayList<View> result = new ArrayList<View>();
for (Diagram nextDiagram : diagrams) {
result.addAll(selectViewsByType(nextDiagram.getEdges(), type));
}
return result;
}
/**
* @generated
*/
private Collection<View> selectViewsByType(Collection<View> views,
String type) {
ArrayList<View> result = new ArrayList<View>();
for (View nextView : views) {
if (type.equals(nextView.getType()) && isOwnView(nextView)) {
result.add(nextView);
}
}
return result;
}
/**
* @generated
*/
private boolean isOwnView(View view) {
return CompositionProgramEditPart.MODEL_ID
.equals(CompositionprogramVisualIDRegistry.getModelID(view));
}
/**
* @generated
*/
private Collection<CompositionprogramNavigatorItem> createNavigatorItems(
Collection<View> views, Object parent, boolean isLeafs) {
ArrayList<CompositionprogramNavigatorItem> result = new ArrayList<CompositionprogramNavigatorItem>(
views.size());
for (View nextView : views) {
result.add(new CompositionprogramNavigatorItem(nextView, parent,
isLeafs));
}
return result;
}
/**
* @generated
*/
public Object getParent(Object element) {
if (element instanceof CompositionprogramAbstractNavigatorItem) {
CompositionprogramAbstractNavigatorItem abstractNavigatorItem = (CompositionprogramAbstractNavigatorItem) element;
return abstractNavigatorItem.getParent();
}
return null;
}
/**
* @generated
*/
public boolean hasChildren(Object element) {
return element instanceof IFile || getChildren(element).length > 0;
}
}