package org.openetcs.sysml.constraints;
import java.util.HashMap;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.validation.AbstractModelConstraint;
import org.eclipse.emf.validation.IValidationContext;
import org.eclipse.uml2.uml.Class;
import org.eclipse.uml2.uml.Stereotype;
public class NameIsUnique extends AbstractModelConstraint {
@Override
public IStatus validate(IValidationContext ctx) {
Class uml_class = (Class) ctx.getTarget();
Stereotype stereotype = uml_class.getAppliedStereotype("SysML::Blocks::Block");
//
// We only check SysML Blocks
//
if (stereotype == null) {
return ctx.createSuccessStatus();
}
if (ctx.getCurrentConstraintData() == null)
{
ctx.putCurrentConstraintData(new HashMap<String, EObject>());
}
@SuppressWarnings("unchecked")
HashMap<String, EObject> name_map = (HashMap<String, EObject>) ctx.getCurrentConstraintData();
if (name_map.containsKey(uml_class.getName())) {
return ctx.createFailureStatus("The name '" + uml_class.getName() + "' is not unique and already used");
} else {
name_map.put(uml_class.getName(), ctx.getTarget());
}
return ctx.createSuccessStatus();
}
}