/* | |
* | |
*/ | |
package comrel.diagram.edit.commands; | |
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 comrel.CompositeRefactoring; | |
import comrel.ComrelFactory; | |
import comrel.SingleInputPort; | |
import comrel.SinglePort; | |
import comrel.SinglePortMapping; | |
import comrel.diagram.edit.policies.ComrelBaseItemSemanticEditPolicy; | |
/** | |
* @generated | |
*/ | |
public class SinglePortMappingCreateCommand extends EditElementCommand { | |
/** | |
* @generated | |
*/ | |
private final EObject source; | |
/** | |
* @generated | |
*/ | |
private final EObject target; | |
/** | |
* @generated | |
*/ | |
private final CompositeRefactoring container; | |
/** | |
* @generated | |
*/ | |
public SinglePortMappingCreateCommand(CreateRelationshipRequest request, | |
EObject source, EObject target) { | |
super(request.getLabel(), null, request); | |
this.source = source; | |
this.target = target; | |
container = deduceContainer(source, target); | |
} | |
/** | |
* @generated | |
*/ | |
public boolean canExecute() { | |
if (source == null && target == null) { | |
return false; | |
} | |
if (source != null && false == source instanceof SinglePort) { | |
return false; | |
} | |
if (target != null && false == target instanceof SingleInputPort) { | |
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 ComrelBaseItemSemanticEditPolicy.getLinkConstraints() | |
.canCreateSinglePortMapping_4001(getContainer(), getSource(), | |
getTarget()); | |
} | |
/** | |
* @generated | |
*/ | |
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, | |
IAdaptable info) throws ExecutionException { | |
if (!canExecute()) { | |
throw new ExecutionException( | |
"Invalid arguments in create link command"); //$NON-NLS-1$ | |
} | |
SinglePortMapping newElement = ComrelFactory.eINSTANCE | |
.createSinglePortMapping(); | |
getContainer().getPortMappings().add(newElement); | |
newElement.setSource(getSource()); | |
newElement.setTarget(getTarget()); | |
doConfigure(newElement, monitor, info); | |
((CreateElementRequest) getRequest()).setNewElement(newElement); | |
return CommandResult.newOKCommandResult(newElement); | |
} | |
/** | |
* @generated | |
*/ | |
protected void doConfigure(SinglePortMapping 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 SinglePort getSource() { | |
return (SinglePort) source; | |
} | |
/** | |
* @generated | |
*/ | |
protected SingleInputPort getTarget() { | |
return (SingleInputPort) target; | |
} | |
/** | |
* @generated | |
*/ | |
public CompositeRefactoring getContainer() { | |
return container; | |
} | |
/** | |
* Default approach is to traverse ancestors of the source to find instance of container. | |
* Modify with appropriate logic. | |
* @generated | |
*/ | |
private static CompositeRefactoring 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 CompositeRefactoring) { | |
return (CompositeRefactoring) element; | |
} | |
} | |
return null; | |
} | |
} |