| //------------------------------------------------------------------------------ |
| // Copyright (c) 2005, 2006 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 implementation |
| //------------------------------------------------------------------------------ |
| package org.eclipse.epf.library.edit.util; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.emf.common.notify.Adapter; |
| import org.eclipse.emf.common.notify.AdapterFactory; |
| import org.eclipse.emf.common.notify.impl.AdapterImpl; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.edit.provider.AdapterFactoryTreeIterator; |
| import org.eclipse.emf.edit.provider.ITreeItemContentProvider; |
| import org.eclipse.emf.edit.provider.ItemProviderAdapter; |
| import org.eclipse.epf.library.edit.process.BreakdownElementWrapperItemProvider; |
| import org.eclipse.epf.library.edit.process.IBSItemProvider; |
| import org.eclipse.epf.uma.Activity; |
| import org.eclipse.epf.uma.BreakdownElement; |
| import org.eclipse.epf.uma.Process; |
| import org.eclipse.epf.uma.UmaPackage; |
| import org.eclipse.epf.uma.VariabilityElement; |
| import org.eclipse.epf.uma.WorkBreakdownElement; |
| import org.eclipse.epf.uma.WorkOrder; |
| |
| /** |
| * This class represents a predecessor list of an item provider for a work |
| * breakdown element. It calculates the predecessors based on the currently |
| * selected configuration and according to variability rules. It can refresh |
| * itself upon change in predecessor list of work breakdown element. |
| * |
| * @author Phong Nguyen Le |
| * @since 1.0 |
| */ |
| public class PredecessorList extends ArrayList { |
| /** |
| * Comment for <code>serialVersionUID</code> |
| */ |
| private static final long serialVersionUID = 3617853092570412082L; |
| |
| public static final PredecessorList EMPTY_LIST = new PredecessorList() { |
| |
| /** |
| * Comment for <code>serialVersionUID</code> |
| */ |
| private static final long serialVersionUID = 3904676098217097016L; |
| |
| public void refresh() { |
| |
| } |
| |
| public void add(int index, Object element) { |
| |
| } |
| |
| public boolean add(Object o) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean addAll(java.util.Collection c) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean addAll(int index, java.util.Collection c) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| }; |
| |
| private AdapterFactory adapterFactory; |
| |
| private Object object; |
| |
| private Adapter listener = new AdapterImpl() { |
| public void notifyChanged(org.eclipse.emf.common.notify.Notification msg) { |
| switch (msg.getFeatureID(BreakdownElement.class)) { |
| case UmaPackage.WORK_BREAKDOWN_ELEMENT__LINK_TO_PREDECESSOR: |
| refresh(); |
| return; |
| } |
| } |
| }; |
| |
| private PredecessorList() { |
| |
| } |
| |
| public PredecessorList(AdapterFactory adapterFactory, Object object) { |
| this.adapterFactory = adapterFactory; |
| this.object = object; |
| BreakdownElement e = (BreakdownElement) TngUtil.unwrap(object); |
| e.eAdapters().add(0, listener); |
| initialize(); |
| } |
| |
| public void dispose() { |
| Object e = TngUtil.unwrap(object); |
| if (e instanceof EObject) { |
| ((EObject) e).eAdapters().remove(listener); |
| } |
| clear(); |
| } |
| |
| /** |
| * Gets the right top item in the breakdown structure tree to search for |
| * item providers of predecessors |
| * |
| * @return |
| */ |
| private Object getTopItem() { |
| if (object instanceof BreakdownElementWrapperItemProvider) { |
| BreakdownElementWrapperItemProvider itemProvider = (BreakdownElementWrapperItemProvider) object; |
| if (itemProvider.isReadOnly()) { |
| // this represents an inherited breakdown element |
| // |
| BreakdownElement e = (BreakdownElement) TngUtil.unwrap(object); |
| Process proc = TngUtil.getOwningProcess(e); |
| |
| Object top = itemProvider; |
| for (Object parent = itemProvider.getParent(object); parent != null;) { |
| top = parent; |
| BreakdownElement parentElement = (BreakdownElement) TngUtil |
| .unwrap(parent); |
| Process parentProc = TngUtil |
| .getOwningProcess(parentElement); |
| if (parentProc != proc) { |
| break; |
| } |
| if (parent instanceof ITreeItemContentProvider) { |
| parent = ((ITreeItemContentProvider) parent) |
| .getParent(parent); |
| } else { |
| ITreeItemContentProvider adapter = (ITreeItemContentProvider) adapterFactory |
| .adapt(parent, ITreeItemContentProvider.class); |
| parent = adapter.getParent(parent); |
| } |
| } |
| return top; |
| } else { |
| return itemProvider.getTopItem(); |
| } |
| } else { |
| IBSItemProvider adapter = (IBSItemProvider) adapterFactory.adapt( |
| object, ITreeItemContentProvider.class); |
| return adapter.getTopItem(); |
| } |
| } |
| |
| private void initialize() { |
| |
| if (TngUtil.unwrap(object) instanceof WorkBreakdownElement) { |
| WorkBreakdownElement e = (WorkBreakdownElement) TngUtil |
| .unwrap(object); |
| List workOrders = e.getLinkToPredecessor(); |
| if (workOrders.isEmpty()) |
| return; |
| Object top = getTopItem(); |
| AdapterFactoryTreeIterator iter = new AdapterFactoryTreeIterator( |
| adapterFactory, top); |
| |
| // copy the tree to a map of breakdown element / item provider for |
| // reuse |
| // |
| HashMap map = new HashMap(); |
| while (iter.hasNext()) { |
| Object obj = iter.next(); |
| Object be = TngUtil.unwrap(obj); |
| Object ip = adapterFactory.adapt(obj, |
| ITreeItemContentProvider.class); |
| map.put(be, ip); |
| if (be instanceof VariabilityElement) { |
| VariabilityElement ve = (VariabilityElement) be; |
| if (ve.getVariabilityBasedOnElement() != null) { |
| map.put(ve.getVariabilityBasedOnElement(), ip); |
| } |
| } |
| } |
| if (!workOrders.isEmpty()) { |
| int n = workOrders.size(); |
| for (int i = 0; i < n; i++) { |
| WorkOrder workOrder = (WorkOrder) workOrders.get(i); |
| BreakdownElement pred = workOrder.getPred(); |
| |
| IBSItemProvider bsItemProvider = (IBSItemProvider) map |
| .get(pred); |
| if (bsItemProvider != null) { |
| add(bsItemProvider); |
| } |
| } |
| } |
| } |
| } |
| |
| protected void refresh() { |
| clear(); |
| initialize(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.util.AbstractCollection#toString() |
| */ |
| public String toString() { |
| return toUnSuppressedString(null); |
| } |
| |
| public String toUnSuppressedString(Suppression sup) { |
| // remove the item providers of the deleted elements |
| // |
| for (Iterator iter = iterator(); iter.hasNext();) { |
| Object e = TngUtil.unwrap(iter.next()); |
| if (e instanceof ItemProviderAdapter) { |
| e = ((ItemProviderAdapter) e).getTarget(); |
| if (e == null) { |
| // object deleted |
| // |
| iter.remove(); |
| } |
| } |
| if (e instanceof BreakdownElement) { |
| BreakdownElement be = (BreakdownElement) e; |
| Activity superAct = be.getSuperActivities(); |
| if (superAct == null && TngUtil.getOwningProcess(be) != be) { |
| iter.remove(); |
| } |
| } |
| } |
| |
| if (isEmpty()) |
| return ""; //$NON-NLS-1$ |
| |
| StringBuffer strBuf = new StringBuffer(); |
| int n = size() - 1; |
| for (int i = 0; i < n; i++) { |
| IBSItemProvider bsItemProvider = (IBSItemProvider) get(i); |
| if ((sup == null) || !sup.isSuppressed(bsItemProvider)) { |
| strBuf.append(bsItemProvider.getId()).append(','); |
| } |
| } |
| IBSItemProvider bsItemProvider = (IBSItemProvider) get(n); |
| if ((sup == null) || !sup.isSuppressed(bsItemProvider)) { |
| strBuf.append(bsItemProvider.getId()); |
| } |
| |
| return strBuf.toString(); |
| } |
| |
| } |