org.eclipse.emf.refactor.metrics.uml24.ocl/src/org/eclipse/emf/refactor/metrics/uml24/umlpack/NAGGR.java

package org.eclipse.emf.refactor.metrics.uml24.umlpack;

import java.util.List;

import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.refactor.metrics.interfaces.IMetricCalculator;
import org.eclipse.emf.refactor.metrics.ocl.managers.OCLManager;

public class NAGGR implements IMetricCalculator {

	private final String expression = 
			"self.packagedElement "
			+ "-> select(oclIsTypeOf(Class)) "
			+ "-> collect(oclAsType(Class).ownedAttribute) "
			+ "-> select(aggregation=AggregationKind::shared) "
			+ "-> size()";	
	private List<EObject> context; 
			
	@Override
	public void setContext(List<EObject> context) {
		this.context = context;
	}	
			
	@Override
	public double calculate() {	
		EObject contextObject = context.get(0);
		return OCLManager.evaluateOCLOnContextObject(contextObject, expression);
	}

}