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package hu.bme.mit.inf.dslreasoner.viatrasolver.logic2viatra
import org.eclipse.emf.common.notify.Notifier
import org.eclipse.viatra.query.runtime.api.IQuerySpecification
import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine
import org.eclipse.viatra.query.runtime.api.ViatraQueryMatcher
import org.eclipse.viatra.query.runtime.emf.EMFScope
class MultiplicityGoalConstraintCalculator {
val String targetRelationName;
val IQuerySpecification<?> querySpecification;
var ViatraQueryMatcher<?> matcher;
val int minValue
val boolean containment
val int cost
public new(String targetRelationName, IQuerySpecification<?> querySpecification, int minValue, boolean containment, int cost) {
this.targetRelationName = targetRelationName
this.querySpecification = querySpecification
this.matcher = null
this.minValue = minValue
this.containment = containment
this.cost = cost
}
public new(MultiplicityGoalConstraintCalculator other) {
this.targetRelationName = other.targetRelationName
this.querySpecification = other.querySpecification
this.matcher = null
this.minValue = other.minValue
this.containment = other.containment
this.cost = other.cost
}
def public getName() {
targetRelationName
}
def isContainment() {
return containment
}
def public init(Notifier notifier) {
val engine = ViatraQueryEngine.on(new EMFScope(notifier))
matcher = querySpecification.getMatcher(engine)
}
def public calculateValue() {
var res = 0
val allMatches = this.matcher.allMatches
for(match : allMatches) {
val existingMultiplicity = match.get(4) as Integer
if(existingMultiplicity < this.minValue) {
val missingMultiplicity = this.minValue-existingMultiplicity
res += missingMultiplicity
}
// if(missingMultiplicity!=0) {
// println(targetRelationName+ " missing multiplicity: "+missingMultiplicity)
// }
}
// if(res>0)
// println(targetRelationName+ " all missing multiplicities: "+res + "*"+cost+"="+res*cost)
return res*cost
}
}
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