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package hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.dse
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.neighbourhood.PartialInterpretation2ImmutableTypeLattice
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PartialInterpretation
import hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.DiversityDescriptor
import java.util.LinkedList
import java.util.List
import org.eclipse.viatra.dse.base.ThreadContext
import java.util.HashSet
import java.util.Set
enum DiversityGranularity {
Nodewise, Graphwise
}
class SolutionStoreWithDiversityDescriptor {
val DiversityDescriptor descriptor
DiversityGranularity granularity
val PartialInterpretation2ImmutableTypeLattice solutionCoder = new PartialInterpretation2ImmutableTypeLattice
val Set<Integer> solutionCodeList = new HashSet
var long runtime
var int allCheck
var int successfulCheck
new(DiversityDescriptor descriptor) {
if(descriptor.ensureDiversity) {
this.descriptor = descriptor
this.granularity = DiversityGranularity::Nodewise
} else {
this.descriptor = null
this.granularity = DiversityGranularity::Nodewise
}
}
def public isActive() {
descriptor!==null
}
def getSumRuntime() {
return runtime
}
def getSuccessRate() {
return successfulCheck as double / allCheck
}
def isDifferent(ThreadContext context) {
if(active) {
val start = System.nanoTime
val model = context.model as PartialInterpretation
var boolean isDifferent
if(this.granularity == DiversityGranularity::Graphwise) {
val code = solutionCoder.createRepresentation(model,
descriptor.range,
descriptor.parallels,
descriptor.maxNumber,
descriptor.relevantTypes,
descriptor.relevantRelations).modelRepresentation.hashCode
isDifferent = !solutionCodeList.contains(code)
} else if(this.granularity == DiversityGranularity::Nodewise){
val codes = solutionCoder.createRepresentation(model,
descriptor.range,
descriptor.parallels,
descriptor.maxNumber,
descriptor.relevantTypes,
descriptor.relevantRelations).modelRepresentation.keySet.map[hashCode].toList
val differentCodes = codes.filter[!solutionCodeList.contains(it)]
//println(differentCodes.size)
isDifferent = differentCodes.size>=3
if(isDifferent)println(differentCodes.size)
} else {
throw new UnsupportedOperationException('''Unsupported diversity type: «this.granularity»''')
}
runtime += System.nanoTime - start
allCheck++
if(isDifferent) { successfulCheck++ }
return isDifferent
} else {
allCheck++
successfulCheck++
return true
}
}
def canBeDifferent(ThreadContext context) {
return true
}
def newSolution(ThreadContext context) {
if(active) {
val start = System.nanoTime
val model = context.model as PartialInterpretation
if(this.granularity == DiversityGranularity::Graphwise) {
val code = solutionCoder.createRepresentation(model,
descriptor.range,
descriptor.parallels,
descriptor.maxNumber,
descriptor.relevantTypes,
descriptor.relevantRelations).modelRepresentation.hashCode
solutionCodeList += code.hashCode
} else if(this.granularity == DiversityGranularity::Nodewise){
val codes = solutionCoder.createRepresentation(model,
descriptor.range,
descriptor.parallels,
descriptor.maxNumber,
descriptor.relevantTypes,
descriptor.relevantRelations).modelRepresentation.keySet.map[hashCode].toList
solutionCodeList += codes.map[it.hashCode]
} else {
throw new UnsupportedOperationException('''Unsupported diversity type: «this.granularity»''')
}
runtime += System.nanoTime - start
}
}
}
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