//------------------------------------------------------------------------------
// 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.authoring.ui.properties;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import org.eclipse.emf.common.command.AbstractCommand;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.epf.library.edit.command.IResourceAwareCommand;
import org.eclipse.epf.library.edit.process.command.DeleteUnusedDescriptorsCommand;
import org.eclipse.epf.library.edit.ui.ReferenceSelection;
import org.eclipse.epf.library.edit.util.DescriptorPropUtil;
import org.eclipse.epf.library.edit.util.ProcessUtil;
import org.eclipse.epf.library.ui.actions.ProcessDeleteAction;
import org.eclipse.epf.uma.Activity;
import org.eclipse.epf.uma.Descriptor;
import org.eclipse.epf.uma.RoleDescriptor;
import org.eclipse.epf.uma.TaskDescriptor;
import org.eclipse.epf.uma.UmaPackage;
import org.eclipse.epf.uma.WorkProductDescriptor;
import org.eclipse.epf.uma.util.UmaUtil;
/**
* Command to remove descriptors
*
* @author Shilpa Toraskar
* @since 1.0
*/
public class RemoveDescriptorCommand extends AbstractCommand implements
IResourceAwareCommand {
private List elements;
private Descriptor desc;
private Collection modifiedResources;
private Command deleteUnusedDescriptorsCommand = null;
private int featureID;
private List references;
private boolean localUse;
private DescriptorPropUtil propUtil;
public RemoveDescriptorCommand(Descriptor desc, List elements, int featureID) {
this(desc, elements, featureID, true);
}
/**
* Remove relationships
*/
public RemoveDescriptorCommand(Descriptor desc, List elements, int featureID, boolean localUse) {
super();
this.elements = elements;
this.desc = desc;
this.featureID = featureID;
this.localUse = localUse;
this.propUtil = DescriptorPropUtil.getDesciptorPropUtil();
this.modifiedResources = new HashSet();
}
/**
* @see org.eclipse.emf.common.command.Command#execute()
*/
public void execute() {
List notUsedReferences = new ArrayList();
for (int i = 0; i < elements.size(); i++) {
Descriptor o = (Descriptor) elements.get(i);
boolean checkRef;
if (o instanceof WorkProductDescriptor)
{
checkRef = ProcessUtil.checkWorkProductDescriptorReferences(Collections
.singleton(desc), (WorkProductDescriptor) o, true, featureID);
}
else
checkRef = ProcessUtil.checkDescriptorReferences(desc, o);
if (!checkRef) {
Activity act = UmaUtil.getParentActivity(desc);
if (act.getBreakdownElements().contains(o))
notUsedReferences.add(o);
}
}
if (!(notUsedReferences.isEmpty())) {
Object[] refToBeDeleted = ReferenceSelection
.getReferences(notUsedReferences);
references = Arrays.asList(refToBeDeleted);
}
redo();
}
/**
* @see org.eclipse.emf.common.command.Command#redo()
*/
public void redo() {
if (desc instanceof TaskDescriptor)
{
switch (featureID) {
case UmaPackage.TASK_DESCRIPTOR__PERFORMED_PRIMARILY_BY:
// ((TaskDescriptor) desc).setPerformedPrimarilyBy(null);
((TaskDescriptor) desc).getPerformedPrimarilyBy().removeAll(
elements);
break;
case UmaPackage.TASK_DESCRIPTOR__ADDITIONALLY_PERFORMED_BY:
((TaskDescriptor) desc).getAdditionallyPerformedBy().removeAll(
elements);
break;
case UmaPackage.TASK_DESCRIPTOR__ASSISTED_BY:
((TaskDescriptor) desc).getAssistedBy().removeAll(elements);
break;
case UmaPackage.TASK_DESCRIPTOR__MANDATORY_INPUT:
((TaskDescriptor) desc).getMandatoryInput().removeAll(elements);
break;
case UmaPackage.TASK_DESCRIPTOR__EXTERNAL_INPUT:
((TaskDescriptor) desc).getExternalInput().removeAll(elements);
break;
case UmaPackage.TASK_DESCRIPTOR__OPTIONAL_INPUT:
((TaskDescriptor) desc).getOptionalInput().removeAll(elements);
break;
case UmaPackage.TASK_DESCRIPTOR__OUTPUT:
((TaskDescriptor) desc).getOutput().removeAll(elements);
break;
}
}
else if (desc instanceof RoleDescriptor)
{
switch (featureID){
case UmaPackage.ROLE_DESCRIPTOR__RESPONSIBLE_FOR:
((RoleDescriptor) desc).getResponsibleFor().removeAll(elements);
break;
}
} else if (desc instanceof WorkProductDescriptor) {
switch (featureID){
case UmaPackage.WORK_PRODUCT_DESCRIPTOR__DELIVERABLE_PARTS:
((WorkProductDescriptor) desc).getDeliverableParts().removeAll(elements);
break;
}
}
if (ProcessUtil.isSynFree()) {
if (localUse) {
propUtil.removeLocalUsingInfo(elements, desc, (EReference)desc.eClass().getEStructuralFeature(featureID));
}
}
if (references != null && !references.isEmpty()) {
if (deleteUnusedDescriptorsCommand == null) {
deleteUnusedDescriptorsCommand = new DeleteUnusedDescriptorsCommand(
references, false, Collections.EMPTY_LIST) {
protected Command delete(List elements) {
return ProcessDeleteAction.delete(elements);
}
};
}
deleteUnusedDescriptorsCommand.execute();
}
if (!elements.isEmpty()) {
if (desc.eResource() != null) {
modifiedResources.add(desc.eResource());
}
}
}
/**
* @see org.eclipse.emf.common.command.AbstractCommand#undo()
*/
public void undo() {
// basically remove from configuration if anything was added
if (desc instanceof TaskDescriptor)
{
switch (featureID) {
case UmaPackage.TASK_DESCRIPTOR__PERFORMED_PRIMARILY_BY:
// Object o = elements.get(0);
// if (o instanceof RoleDescriptor)
// ((TaskDescriptor) desc).setPerformedPrimarilyBy((RoleDescriptor)o);
((TaskDescriptor) desc).getPerformedPrimarilyBy().addAll(
elements);
break;
case UmaPackage.TASK_DESCRIPTOR__ADDITIONALLY_PERFORMED_BY:
((TaskDescriptor) desc).getAdditionallyPerformedBy().addAll(
elements);
break;
case UmaPackage.TASK_DESCRIPTOR__ASSISTED_BY:
((TaskDescriptor) desc).getAssistedBy().addAll(elements);
break;
case UmaPackage.TASK_DESCRIPTOR__MANDATORY_INPUT:
((TaskDescriptor) desc).getMandatoryInput().addAll(elements);
break;
case UmaPackage.TASK_DESCRIPTOR__EXTERNAL_INPUT:
((TaskDescriptor) desc).getExternalInput().addAll(elements);
break;
case UmaPackage.TASK_DESCRIPTOR__OPTIONAL_INPUT:
((TaskDescriptor) desc).getOptionalInput().addAll(elements);
break;
case UmaPackage.TASK_DESCRIPTOR__OUTPUT:
((TaskDescriptor) desc).getOutput().addAll(elements);
break;
}
}
else if (desc instanceof RoleDescriptor)
{
switch (featureID) {
case UmaPackage.ROLE_DESCRIPTOR__RESPONSIBLE_FOR:
((RoleDescriptor) desc).getResponsibleFor().addAll(elements);
break;
}
} else if (desc instanceof WorkProductDescriptor) {
switch (featureID){
case UmaPackage.WORK_PRODUCT_DESCRIPTOR__DELIVERABLE_PARTS:
((WorkProductDescriptor) desc).getDeliverableParts().addAll(elements);
break;
}
}
if (ProcessUtil.isSynFree()) {
if (localUse) {
propUtil.addLocalUsingInfo(elements, desc, (EReference)desc.eClass().getEStructuralFeature(featureID));
}
}
if (references != null && !references.isEmpty()) {
try {
if (deleteUnusedDescriptorsCommand != null)
deleteUnusedDescriptorsCommand.undo();
} catch (RuntimeException exception) {
}
}
}
/**
* @see org.eclipse.emf.common.command.AbstractCommand#dispose()
*/
public void dispose()
{
if (deleteUnusedDescriptorsCommand != null)
deleteUnusedDescriptorsCommand.dispose();
if(references != null) {
references.clear();
}
if(modifiedResources != null) {
modifiedResources.clear();
}
super.dispose();
}
/**
* @see org.eclipse.emf.common.command.AbstractCommand#prepare()
*/
protected boolean prepare() {
return true;
}
/**
* @see org.eclipse.epf.library.edit.command.IResourceAwareCommand#getModifiedResources()
*/
public Collection getModifiedResources() {
return modifiedResources;
}
public Collection getAffectedObjects() {
if (desc != null) {
return Arrays.asList(new Object[] { desc });
}
return super.getAffectedObjects();
}
protected int getFeatureID() {
return featureID;
}
}