package org.eclipse.uml2.diagram.component.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.emf.type.core.commands.EditElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.uml2.diagram.common.preferences.UMLPreferencesConstants;
import org.eclipse.uml2.diagram.component.edit.policies.UMLBaseItemSemanticEditPolicy;
import org.eclipse.uml2.diagram.component.part.UMLDiagramEditorPlugin;
import org.eclipse.uml2.uml.Component;
import org.eclipse.uml2.uml.Interface;
/**
* @generated
*/
public class ComponentRequiredCreateCommand extends EditElementCommand {
/**
* @generated
*/
private final EObject source;
/**
* @generated
*/
private final EObject target;
/**
* @generated NOT
*/
private final IPreferenceStore myStore = UMLDiagramEditorPlugin.getInstance().getPreferenceStore();
/**
* @generated
*/
public ComponentRequiredCreateCommand(CreateRelationshipRequest request, EObject source, EObject target) {
super(request.getLabel(), null, request);
this.source = source;
this.target = target;
}
/**
* @generated NOT
*/
public boolean canExecute() {
if (myStore.getBoolean(UMLPreferencesConstants.PREF_MANAGE_LINKS_HIDE_USAGE_LINKS)) {
return false;
}
return canExecuteGen();
}
/**
* @generated
*/
public boolean canExecuteGen() {
if (source == null && target == null) {
return false;
}
if (source != null && false == source instanceof Component) {
return false;
}
if (target != null && false == target instanceof Interface) {
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
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateComponentRequired_4007(getSource(), getTarget());
}
/**
* @generated NOT
*/
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
if (!canExecute()) {
throw new ExecutionException("Invalid arguments in create link command"); //$NON-NLS-1$
}
Component component = getSource();
Interface required = getTarget();
if (component != null && required != null) {
component.createUsage(required);
}
return CommandResult.newOKCommandResult();
}
/**
* @generated
*/
protected void setElementToEdit(EObject element) {
throw new UnsupportedOperationException();
}
/**
* @generated
*/
protected Component getSource() {
return (Component) source;
}
/**
* @generated
*/
protected Interface getTarget() {
return (Interface) target;
}
}