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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;
new(String targetRelationName, IQuerySpecification<?> querySpecification) {
this.targetRelationName = targetRelationName
this.querySpecification = querySpecification
this.matcher = null
}
new(MultiplicityGoalConstraintCalculator other) {
this.targetRelationName = other.targetRelationName
this.querySpecification = other.querySpecification
this.matcher = null
}
def getName() {
targetRelationName
}
def init(Notifier notifier) {
val engine = ViatraQueryEngine.on(new EMFScope(notifier))
matcher = querySpecification.getMatcher(engine)
}
def calculateValue() {
var res = 0
val allMatches = this.matcher.allMatches
for(match : allMatches) {
//println(targetRelationName+ " missing multiplicity: "+match.get(3))
val missingMultiplicity = match.get(4) as Integer
res += missingMultiplicity
}
//println(targetRelationName+ " all missing multiplicities: "+res)
return res
}
}
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