package org.eclipse.papyrus.uml.diagram.sequence.edit.commands;
import java.util.Collections;
import java.util.List;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.IElementType;
import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.ConfigureRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
import org.eclipse.papyrus.uml.diagram.sequence.providers.ElementInitializers;
import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceRequestConstant;
import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceUtil;
import org.eclipse.uml2.uml.GeneralOrdering;
import org.eclipse.uml2.uml.InteractionFragment;
import org.eclipse.uml2.uml.OccurrenceSpecification;
import org.eclipse.uml2.uml.UMLFactory;
/**
* @generated
*/
public class GeneralOrderingCreateCommand extends EditElementCommand {
/**
* @generated
*/
protected final EObject source;
/**
* @generated
*/
protected final EObject target;
/**
* @generated
*/
protected InteractionFragment container;
/**
* Non generated, completely redefined to find correct ends and correct container
*
* @generated NOT find source and target events and container
*/
public GeneralOrderingCreateCommand(CreateRelationshipRequest request, EObject source, EObject target) {
super(request.getLabel(), null, request);
// check source occurrence specification
List<OccurrenceSpecification> possibleSourceOcc = null;
if(getRequest().getParameters().containsKey(SequenceRequestConstant.NEAREST_OCCURRENCE_SPECIFICATION)) {
Object paramOccurrence1 = getRequest().getParameter(SequenceRequestConstant.NEAREST_OCCURRENCE_SPECIFICATION);
List<OccurrenceSpecification> occ1List = SequenceUtil.getAsOccSpecList(paramOccurrence1);
possibleSourceOcc = occ1List;
}
// check target occurrence specification
List<OccurrenceSpecification> possibleTargetOcc = null;
if(getRequest().getParameters().containsKey(SequenceRequestConstant.NEAREST_OCCURRENCE_SPECIFICATION_2)) {
Object paramOccurrence2 = getRequest().getParameter(SequenceRequestConstant.NEAREST_OCCURRENCE_SPECIFICATION_2);
List<OccurrenceSpecification> occ2List = SequenceUtil.getAsOccSpecList(paramOccurrence2);
possibleTargetOcc = occ2List;
}
// disable duration constraint on a same event
if(possibleSourceOcc != null && !possibleSourceOcc.isEmpty()) {
this.source = possibleSourceOcc.get(0);
} else {
this.source = null;
}
if(possibleTargetOcc != null && !possibleTargetOcc.isEmpty() && Collections.disjoint(possibleSourceOcc, possibleTargetOcc)) {
this.target = possibleTargetOcc.get(0);
} else {
// set invalid target to disable it (or null to enable in case second end is not defined)
this.target = target;
}
container = deduceContainer(source, target);
}
/**
* @generated
*/
public boolean canExecute() {
if(source == null && target == null) {
return false;
}
if(source != null && false == source instanceof OccurrenceSpecification) {
return false;
}
if(target != null && false == target instanceof OccurrenceSpecification) {
return false;
}
if(getSource() == null) {
return true; // link creation is in progress; source is not defined yet
}
// target may be null here but it's possible to check constraint
if(getContainer() == null) {
return false;
}
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateGeneralOrdering_4012(getContainer(), getSource(), getTarget());
}
/**
* @generated
*/
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
if(!canExecute()) {
throw new ExecutionException("Invalid arguments in create link command"); //$NON-NLS-1$
}
GeneralOrdering newElement = UMLFactory.eINSTANCE.createGeneralOrdering();
getContainer().getGeneralOrderings().add(newElement);
newElement.setBefore(getSource());
newElement.setAfter(getTarget());
ElementInitializers.getInstance().init_GeneralOrdering_4012(newElement);
doConfigure(newElement, monitor, info);
((CreateElementRequest)getRequest()).setNewElement(newElement);
return CommandResult.newOKCommandResult(newElement);
}
/**
* @generated
*/
protected void doConfigure(GeneralOrdering newElement, IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
IElementType elementType = ((CreateElementRequest)getRequest()).getElementType();
ConfigureRequest configureRequest = new ConfigureRequest(getEditingDomain(), newElement, elementType);
configureRequest.setClientContext(((CreateElementRequest)getRequest()).getClientContext());
configureRequest.addParameters(getRequest().getParameters());
configureRequest.setParameter(CreateRelationshipRequest.SOURCE, getSource());
configureRequest.setParameter(CreateRelationshipRequest.TARGET, getTarget());
ICommand configureCommand = elementType.getEditCommand(configureRequest);
if(configureCommand != null && configureCommand.canExecute()) {
configureCommand.execute(monitor, info);
}
}
/**
* @generated
*/
protected void setElementToEdit(EObject element) {
throw new UnsupportedOperationException();
}
/**
* @generated
*/
protected OccurrenceSpecification getSource() {
return (OccurrenceSpecification)source;
}
/**
* @generated
*/
protected OccurrenceSpecification getTarget() {
return (OccurrenceSpecification)target;
}
/**
* @generated
*/
public InteractionFragment getContainer() {
return container;
}
/**
* Default approach is to traverse ancestors of the source to find instance of container.
* Modify with appropriate logic.
*
* @generated
*/
protected InteractionFragment deduceContainer(EObject source, EObject target) {
// Find container element for the new link.
// Climb up by containment hierarchy starting from the source
// and return the first element that is instance of the container class.
for(EObject element = source; element != null; element = element.eContainer()) {
if(element instanceof InteractionFragment) {
return (InteractionFragment)element;
}
}
return null;
}
}