| /******************************************************************************* |
| * Copyright (c) 2009, 2010 Fair Isaac Corporation. |
| * 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: |
| * Fair Isaac Corporation - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.ui.tests.navigator.m12; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.LinkedHashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.ui.IMemento; |
| import org.eclipse.ui.navigator.ICommonContentExtensionSite; |
| import org.eclipse.ui.navigator.IPipelinedTreeContentProvider2; |
| import org.eclipse.ui.navigator.PipelinedShapeModification; |
| import org.eclipse.ui.navigator.PipelinedViewerUpdate; |
| import org.eclipse.ui.tests.navigator.m12.model.ResourceWrapper; |
| |
| public abstract class ResourceWrapperContentProvider implements |
| IPipelinedTreeContentProvider2 { |
| protected static final Object[] NO_CHILDREN = new Object[0]; |
| |
| protected static final String INTERCEPT_ADD = "ADD"; |
| protected static final String INTERCEPT_REMOVE = "REMOVE"; |
| protected static final String INTERCEPT_REFRESH = "REFRESH"; |
| protected static final String INTERCEPT_UPDATE = "UPDATE"; |
| |
| private static Map _counters; |
| |
| public ResourceWrapperContentProvider() { |
| super(); |
| _counters = new HashMap(); |
| } |
| |
| public void getPipelinedChildren(Object aParent, Set theCurrentChildren) { |
| // Nothing to do, we replaced IProjects with ModelProjects in |
| // getPipelinedElements |
| // and from there children are provided by getChildren. |
| } |
| |
| public void getPipelinedElements(Object input, Set currentElements) { |
| |
| } |
| |
| public Object getPipelinedParent(Object object, Object suggestedParent) { |
| return (object instanceof ResourceWrapper) ? ((ResourceWrapper) object) |
| .getParent() : suggestedParent; |
| } |
| |
| public void init(ICommonContentExtensionSite aConfig) { |
| // ResourcesPlugin.getWorkspace().addResourceChangeListener(this, |
| // IResourceChangeEvent.PRE_BUILD | |
| // IResourceChangeEvent.POST_BUILD | |
| // IResourceChangeEvent.POST_CHANGE | |
| // IResourceChangeEvent.PRE_DELETE | |
| // IResourceChangeEvent.PRE_CLOSE); |
| } |
| |
| public Object[] getChildren(Object parentElement) { |
| return NO_CHILDREN; |
| } |
| |
| public Object getParent(Object element) { |
| if (element instanceof ResourceWrapper) { |
| return ((ResourceWrapper) element).getParent(); |
| } else { |
| return null; |
| } |
| } |
| |
| public boolean hasChildren(Object element) { |
| try { |
| return ((ResourceWrapper) element).hasChildren(); |
| } catch (CoreException e) { |
| e.printStackTrace(); |
| return false; |
| } |
| } |
| |
| public Object[] getElements(Object inputElement) { |
| return NO_CHILDREN; |
| } |
| |
| public void dispose() { |
| // not implemented |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| // _viewer = viewer; |
| } |
| |
| public void restoreState(IMemento aMemento) { |
| // not implemented |
| } |
| |
| public void saveState(IMemento aMemento) { |
| // not implemented |
| } |
| |
| public PipelinedShapeModification interceptAdd( |
| PipelinedShapeModification modification) { |
| _convertToModelObjects(modification); |
| _incrementCounter(INTERCEPT_ADD); |
| return modification; |
| } |
| |
| public PipelinedShapeModification interceptRemove( |
| PipelinedShapeModification modification) { |
| _incrementCounter(INTERCEPT_REMOVE); |
| _convertToModelObjects(modification.getChildren()); |
| return modification; |
| } |
| |
| public boolean interceptRefresh(PipelinedViewerUpdate refreshSynchronization) { |
| _incrementCounter(INTERCEPT_REFRESH); |
| return _convertToModelObjects(refreshSynchronization |
| .getRefreshTargets()); |
| } |
| |
| public boolean interceptUpdate(PipelinedViewerUpdate update) { |
| _incrementCounter(INTERCEPT_UPDATE); |
| return _convertToModelObjects(update.getRefreshTargets()); |
| } |
| |
| private void _incrementCounter(String counterId) { |
| Map counters = (Map) _counters.get(getClass().getName()); |
| if (counters == null) { |
| counters = new HashMap(); |
| _counters.put(getClass().getName(), counters); |
| } |
| Integer current = (Integer) counters.get(counterId); |
| if (current == null) { |
| counters.put(counterId, new Integer(1)); |
| } else { |
| counters.put(counterId, new Integer(current.intValue() + 1)); |
| } |
| } |
| |
| protected static void resetCounters(String className) { |
| _counters.remove(className); |
| } |
| |
| protected static int getCounter(String className, String counterId) { |
| Map counters = (Map) _counters.get(className); |
| if (counters == null) { |
| return 0; |
| } |
| Integer value = (Integer) counters.get(counterId); |
| return (value == null) ? 0 : value.intValue(); |
| } |
| |
| protected boolean _convertToModelObjects( |
| PipelinedShapeModification modification) { |
| Object parent = modification.getParent(); |
| Object node = _convertToModelObject(parent); |
| if (node != null && node != parent) { |
| modification.setParent(node); |
| } |
| |
| return _convertToModelObjects(modification.getChildren()); |
| } |
| |
| protected boolean _convertToModelObjects(Set children) { |
| Set convertedChildren = new LinkedHashSet(); |
| for (Iterator childrenItr = children.iterator(); childrenItr.hasNext();) { |
| Object child = childrenItr.next(); |
| Object node = _convertToModelObject(child); |
| if (node != null && node != child) { |
| childrenItr.remove(); |
| convertedChildren.add(node); |
| } |
| } |
| children.addAll(convertedChildren); |
| return (!convertedChildren.isEmpty()); |
| } |
| |
| protected abstract Object _convertToModelObject(Object object); |
| } |