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package hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner
import hu.bme.mit.inf.dslreasoner.logic.model.builder.DocumentationLevel
import hu.bme.mit.inf.dslreasoner.logic.model.builder.LogicReasoner
import hu.bme.mit.inf.dslreasoner.logic.model.builder.LogicReasonerException
import hu.bme.mit.inf.dslreasoner.logic.model.builder.LogicSolverConfiguration
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.LogiclanguagePackage
import hu.bme.mit.inf.dslreasoner.logic.model.logicproblem.LogicProblem
import hu.bme.mit.inf.dslreasoner.logic.model.logicproblem.LogicproblemPackage
import hu.bme.mit.inf.dslreasoner.logic.model.logicresult.LogicresultFactory
import hu.bme.mit.inf.dslreasoner.logic.model.logicresult.ModelResult
import hu.bme.mit.inf.dslreasoner.viatrasolver.logic2viatra.ModelGenerationMethodProvider
import hu.bme.mit.inf.dslreasoner.viatrasolver.logic2viatra.ScopePropagator
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.PartialInterpretationInitialiser
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PartialInterpretation
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PartialinterpretationPackage
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.statecoder.IdentifierBasedStateCoderFactory
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.statecoder.NeighbourhoodBasedStateCoderFactory
import hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.dse.BestFirstStrategyForModelGeneration
import hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.dse.ModelGenerationCompositeObjective
import hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.dse.PartialModelAsLogicInterpretation
import hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.dse.ScopeObjective
import hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.dse.UnfinishedMultiplicityObjective
import hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.dse.UnfinishedWFObjective
import hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.dse.WF2ObjectiveConverter
import hu.bme.mit.inf.dslreasoner.workspace.ReasonerWorkspace
import java.util.List
import java.util.Map
import org.eclipse.emf.ecore.EObject
import org.eclipse.viatra.dse.api.DesignSpaceExplorer
import org.eclipse.viatra.dse.api.DesignSpaceExplorer.DseLoggingLevel
import org.eclipse.viatra.dse.solutionstore.SolutionStore
import org.eclipse.viatra.dse.statecode.IStateCoderFactory
class ViatraReasoner extends LogicReasoner{
val PartialInterpretationInitialiser initialiser = new PartialInterpretationInitialiser()
val ModelGenerationMethodProvider modelGenerationMethodProvider = new ModelGenerationMethodProvider
val extension LogicresultFactory factory = LogicresultFactory.eINSTANCE
val WF2ObjectiveConverter wf2ObjectiveConverter = new WF2ObjectiveConverter
override solve(LogicProblem problem, LogicSolverConfiguration configuration, ReasonerWorkspace workspace) throws LogicReasonerException {
val viatraConfig = configuration.asConfig
if(viatraConfig.debugCongiguration.logging) {
DesignSpaceExplorer.turnOnLogging(DseLoggingLevel.VERBOSE_FULL)
} else {
DesignSpaceExplorer.turnOnLogging(DseLoggingLevel.WARN)
}
val DesignSpaceExplorer dse = new DesignSpaceExplorer();
dse.addMetaModelPackage(LogiclanguagePackage.eINSTANCE)
dse.addMetaModelPackage(LogicproblemPackage.eINSTANCE)
dse.addMetaModelPackage(PartialinterpretationPackage.eINSTANCE)
val transformationStartTime = System.nanoTime
val emptySolution = initialiser.initialisePartialInterpretation(problem,viatraConfig.typeScopes).output
if((viatraConfig.documentationLevel == DocumentationLevel::FULL || viatraConfig.documentationLevel == DocumentationLevel::NORMAL) && workspace !== null) {
workspace.writeModel(emptySolution,"init.partialmodel")
}
emptySolution.problemConainer = problem
val ScopePropagator scopePropagator = new ScopePropagator(emptySolution)
scopePropagator.propagateAllScopeConstraints
val method = modelGenerationMethodProvider.createModelGenerationMethod(
problem,
emptySolution,
workspace,
viatraConfig.nameNewElements,
viatraConfig.typeInferenceMethod,
scopePropagator,
viatraConfig.documentationLevel
)
dse.addObjective(new ModelGenerationCompositeObjective(
new ScopeObjective,
method.unfinishedMultiplicities.map[new UnfinishedMultiplicityObjective(it)],
new UnfinishedWFObjective(method.unfinishedWF)
))
dse.addGlobalConstraint(wf2ObjectiveConverter.createInvalidationObjective(method.invalidWF))
for(additionalConstraint : viatraConfig.searchSpaceConstraints.additionalGlobalConstraints) {
dse.addGlobalConstraint(additionalConstraint.apply(method))
}
dse.setInitialModel(emptySolution,false)
val IStateCoderFactory statecoder = if(viatraConfig.stateCoderStrategy == StateCoderStrategy.Neighbourhood) {
new NeighbourhoodBasedStateCoderFactory
} else {
new IdentifierBasedStateCoderFactory
}
dse.stateCoderFactory = statecoder
dse.maxNumberOfThreads = 1
val solutionStore = new SolutionStore(configuration.solutionScope.numberOfRequiredSolution)
dse.solutionStore = solutionStore
for(rule : method.relationRefinementRules) {
dse.addTransformationRule(rule)
}
for(rule : method.objectRefinementRules) {
dse.addTransformationRule(rule)
}
val strategy = new BestFirstStrategyForModelGeneration(workspace,viatraConfig,method)
viatraConfig.progressMonitor.workedForwardTransformation
val transformationTime = System.nanoTime - transformationStartTime
val solverStartTime = System.nanoTime
var boolean stoppedByTimeout
var boolean stoppedByException
try{
stoppedByTimeout = dse.startExplorationWithTimeout(strategy,configuration.runtimeLimit*1000);
stoppedByException = false
} catch (NullPointerException npe) {
stoppedByTimeout = false
stoppedByException = true
}
val solverTime = System.nanoTime - solverStartTime
viatraConfig.progressMonitor.workedSearchFinished
//additionalMatches = strategy.solutionStoreWithCopy.additionalMatches
val statistics = createStatistics => [
//it.solverTime = viatraConfig.runtimeLimit
it.solverTime = (solverTime/1000000) as int
it.transformationTime = (transformationTime/1000000) as int
for(x : 0..<strategy.solutionStoreWithCopy.allRuntimes.size) {
it.entries += createIntStatisticEntry => [
it.name = '''_Solution«x»FoundAt'''
it.value = (strategy.solutionStoreWithCopy.allRuntimes.get(x)/1000000) as int
]
}
it.entries += createIntStatisticEntry => [
it.name = "TransformationExecutionTime" it.value = (method.statistics.transformationExecutionTime/1000000) as int
]
it.entries += createIntStatisticEntry => [
it.name = "TypeAnalysisTime" it.value = (method.statistics.PreliminaryTypeAnalisisTime/1000000) as int
]
it.entries += createIntStatisticEntry => [
it.name = "StateCoderTime" it.value = (statecoder.runtime/1000000) as int
]
it.entries += createIntStatisticEntry => [
it.name = "StateCoderFailCount" it.value = strategy.numberOfStatecoderFail
]
it.entries += createIntStatisticEntry => [
it.name = "SolutionCopyTime" it.value = (strategy.solutionStoreWithCopy.sumRuntime/1000000) as int
]
if(strategy.solutionStoreWithDiversityDescriptor.isActive) {
it.entries += createIntStatisticEntry => [
it.name = "SolutionDiversityCheckTime" it.value = (strategy.solutionStoreWithDiversityDescriptor.sumRuntime/1000000) as int
]
it.entries += createRealStatisticEntry => [
it.name = "SolutionDiversitySuccessRate" it.value = strategy.solutionStoreWithDiversityDescriptor.successRate
]
}
]
viatraConfig.progressMonitor.workedBackwardTransformationFinished
if(stoppedByTimeout) {
return createInsuficientResourcesResult=>[
it.problem = problem
it.resourceName="time"
it.statistics = statistics
]
} else {
if(solutionStore.solutions.empty) {
return createInconsistencyResult => [
it.problem = problem
it.statistics = statistics
]
} else {
return createModelResult => [
it.problem = problem
it.trace = strategy.solutionStoreWithCopy.copyTraces
it.representation += strategy.solutionStoreWithCopy.solutions
it.statistics = statistics
]
}
}
}
private def dispatch long runtime(NeighbourhoodBasedStateCoderFactory sc) {
sc.sumStatecoderRuntime
}
private def dispatch long runtime(IdentifierBasedStateCoderFactory sc) {
sc.sumStatecoderRuntime
}
override getInterpretations(ModelResult modelResult) {
val indexes = 0..<modelResult.representation.size
val traces = modelResult.trace as List<Map<EObject, EObject>>;
val res = indexes.map[i | new PartialModelAsLogicInterpretation(modelResult.representation.get(i) as PartialInterpretation,traces.get(i))].toList
return res
}
private def ViatraReasonerConfiguration asConfig(LogicSolverConfiguration configuration) {
if(configuration instanceof ViatraReasonerConfiguration) {
return configuration
} else throw new IllegalArgumentException('''Wrong configuration. Expected: «ViatraReasonerConfiguration.name», but got: «configuration.class.name»"''')
}
}
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