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package hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.statecoder
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.DefinedElement
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.neighbourhood.AbstractNodeDescriptor
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.neighbourhood.NeighbourhoodOptions
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.neighbourhood.PartialInterpretation2ImmutableTypeLattice
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PartialInterpretation
import java.util.ArrayList
import java.util.Map
import org.eclipse.viatra.query.runtime.api.IPatternMatch
class NeighbourhoodBasedStateCoderFactory extends AbstractNeighbourhoodBasedStateCoderFactory {
new() {
}
new(NeighbourhoodOptions options) {
super(options)
}
override protected doCreateStateCoder(NeighbourhoodOptions options) {
new NeighbourhoodBasedPartialInterpretationStateCoder(options)
}
}
class NeighbourhoodBasedPartialInterpretationStateCoder extends AbstractNeighbourhoodBasedPartialInterpretationStateCoder {
val calculator = new PartialInterpretation2ImmutableTypeLattice
var Map<DefinedElement, ? extends AbstractNodeDescriptor> nodeRepresentations = null
var Map<? extends AbstractNodeDescriptor, Integer> modelRepresentation = null
new(NeighbourhoodOptions options) {
super(options)
}
override protected isRefreshNeeded() {
nodeRepresentations === null || modelRepresentation === null
}
override doRefreshStateCodes(PartialInterpretation target, NeighbourhoodOptions options) {
val code = calculator.createRepresentation(target, options)
modelRepresentation = code.modelRepresentation
nodeRepresentations = code.nodeRepresentations
}
override doCreateActivationCode(IPatternMatch match) {
val size = match.specification.parameters.size
val res = new ArrayList(size)
var int index = 0
var int equivalenceHash = 0
val prime = 31
while (index < size) {
res.add(getCode(match.get(index)))
index++
for (var i = 0; i < index; i++) {
val number = if (match.get(index) === match.get(i)) {
1
} else {
0
}
equivalenceHash = prime * equivalenceHash + number
}
}
match.specification.fullyQualifiedName -> (res -> equivalenceHash).hashCode
}
def private getCode(Object o) {
switch (o) {
DefinedElement:
nodeRepresentations.get(o)
default:
getFallbackCode(o)
}
}
override doCreateStateCode() {
modelRepresentation.hashCode
}
override doInvalidate() {
nodeRepresentations = null
modelRepresentation = null
}
}
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