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package hu.bme.mit.inf.dslreasoner.viatra2logic
import hu.bme.mit.inf.dslreasoner.ecore2logic.Ecore2Logic
import hu.bme.mit.inf.dslreasoner.ecore2logic.Ecore2Logic_Trace
import hu.bme.mit.inf.dslreasoner.logic.model.builder.LogicProblemBuilder
import hu.bme.mit.inf.dslreasoner.logic.model.builder.TracedOutput
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.RelationDefinition
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.TypeDescriptor
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.Variable
import hu.bme.mit.inf.dslreasoner.logic.model.logicproblem.LogicProblem
import hu.bme.mit.inf.dslreasoner.viatra2logic.viatra2logicannotations.TransfomedViatraQuery
import hu.bme.mit.inf.dslreasoner.viatra2logic.viatra2logicannotations.Viatra2LogicAnnotationsFactory
import java.util.ArrayList
import java.util.HashMap
import java.util.LinkedList
import java.util.List
import java.util.Map
import java.util.Set
import org.eclipse.emf.ecore.EAttribute
import org.eclipse.emf.ecore.EClass
import org.eclipse.emf.ecore.EClassifier
import org.eclipse.emf.ecore.EEnum
import org.eclipse.emf.ecore.EReference
import org.eclipse.emf.ecore.EStructuralFeature
import org.eclipse.emf.ecore.EcorePackage
import org.eclipse.viatra.query.runtime.api.IQuerySpecification
import org.eclipse.viatra.query.runtime.emf.EMFQueryMetaContext
import org.eclipse.viatra.query.runtime.emf.types.BaseEMFTypeKey
import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey
import org.eclipse.viatra.query.runtime.emf.types.EDataTypeInSlotsKey
import org.eclipse.viatra.query.runtime.matchers.psystem.PBody
import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.NegativePatternCall
import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter
import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PQuery
import org.eclipse.viatra.query.runtime.matchers.psystem.rewriters.PBodyNormalizer
import org.eclipse.xtend.lib.annotations.Data
import static extension hu.bme.mit.inf.dslreasoner.util.CollectionsUtil.*
import org.eclipse.viatra.query.runtime.matchers.psystem.TypeJudgement
@Data class ViatraQuerySetDescriptor {
val List<? extends IQuerySpecification<?>> patterns
val Set<? extends IQuerySpecification<?>> validationPatterns
val Map<IQuerySpecification<?>,EStructuralFeature> derivedFeatures
}
class Viatra2LogicTrace {
public val Map<PQuery, RelationDefinition> query2Relation = new HashMap
public val Map<PQuery, TransfomedViatraQuery> query2Annotation = new HashMap
public val Map<Pair<PQuery,PParameter>, Variable> parameter2Variable = new HashMap
//public val Map<PVariable, Variable> variable2Variable = new HashMap
}
class Viatra2LogicConfiguration {
public var normalize = true
public var transitiveClosureDepth = 3
}
class Viatra2Logic {
val extension LogicProblemBuilder builder = new LogicProblemBuilder
val extension Viatra2LogicAnnotationsFactory factory = Viatra2LogicAnnotationsFactory.eINSTANCE
val Ecore2Logic ecore2Logic
Constraint2Logic constraint2Logic
new(Ecore2Logic ecore2Logic) {
this.ecore2Logic = ecore2Logic
constraint2Logic = new Constraint2Logic(ecore2Logic)
}
def TracedOutput<LogicProblem,Viatra2LogicTrace> transformQueries(
ViatraQuerySetDescriptor queries,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicConfiguration config)
{
val viatra2LogicTrace = new Viatra2LogicTrace
for(query: queries.patterns) {
try {
this.transformQueryHeader(query,ecore2LogicTrace,viatra2LogicTrace,config)
} catch(IllegalArgumentException e) {
throw new IllegalArgumentException('''
Unable to translate query "«query.fullyQualifiedName»".
Reason: «e.class.simpleName», «e.message»''',e)
}
}
for(query: queries.patterns) {
try {
this.transformQuerySpecification(query,ecore2LogicTrace,viatra2LogicTrace,config)
} catch (IllegalArgumentException e){
throw new IllegalArgumentException('''
Unable to translate query "«query.fullyQualifiedName»".
Reason: «e.class.simpleName», «e.message»''',e)
}
}
/*for(d : viatra2LogicTrace.query2Relation.values) {
checkDefinition(d)
}*/
transformQueryConstraints(
queries.validationPatterns,
queries.derivedFeatures,
ecore2LogicTrace,viatra2LogicTrace)
return new TracedOutput(ecore2LogicTrace.output,viatra2LogicTrace)
}
def protected transformQueryHeader(IQuerySpecification<?> squery,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
val pquery = squery.internalQueryRepresentation
val relationName = '''pattern «pquery.fullyQualifiedName.replace('.',' ')»'''
val parameters = new ArrayList<Variable>(pquery.parameters.size)
for(vParam: pquery.parameters) {
//println(">" + vParam.declaredUnaryType)
val type = vParam.declaredUnaryType as BaseEMFTypeKey<? extends EClassifier>
val parameterType = transformTypeReference(
type,
ecore2LogicTrace
)
// if(parameterType == null) {
// println(parameterType)
// }
val parameterName = '''parameter «vParam.name»'''
val lParam = createVar(parameterName,parameterType)
viatra2LogicTrace.parameter2Variable.put(pquery->vParam,lParam)
parameters+=lParam
}
val lRelation = RelationDefinition(relationName,parameters,null)
viatra2LogicTrace.query2Relation.put(pquery,lRelation);
ecore2LogicTrace.output.relations += lRelation
val annotation = createTransfomedViatraQuery => [
it.target = lRelation
it.patternFullyQualifiedName = pquery.fullyQualifiedName
it.patternPQuery = pquery
]
viatra2LogicTrace.query2Annotation.put(pquery,annotation)
ecore2LogicTrace.output.annotations += annotation
return lRelation
}
def protected transformQuerySpecification(
IQuerySpecification<?> squery,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
val pquery = squery.internalQueryRepresentation
val disjunction = if(config.normalize) {
val normalizer = new PBodyNormalizer(EMFQueryMetaContext.DEFAULT)
normalizer.rewrite(pquery)
} else {
pquery.disjunctBodies
}
val translatedBodies = new ArrayList(disjunction.bodies.size)
for(body : disjunction.bodies) {
translatedBodies+=body.transformBody(ecore2LogicTrace,viatra2LogicTrace,config)
}
val relation = pquery.lookup(viatra2LogicTrace.query2Relation)
relation.value = Or(translatedBodies)
}
def transformQueryConstraints(
Set<? extends IQuerySpecification<?>> validationPatterns,
Map<IQuerySpecification<?>,EStructuralFeature> derivedFeatures,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace)
{
for(validationPattern : validationPatterns) {
val pquery = validationPattern.internalQueryRepresentation
val constraint = Assertion('''errorpattern «pquery.fullyQualifiedName.replace('.',' ')»''',
Forall[
for(param: pquery.parameters) {
addVar(param.name,transformTypeReference(
param.declaredUnaryType as BaseEMFTypeKey<? extends EClassifier>,
ecore2LogicTrace))
}
Not(pquery.lookup(viatra2LogicTrace.query2Relation).call(it.variables))
]
)
val annotation = createTransformedViatraWellformednessConstraint => [
it.query = pquery.lookup(viatra2LogicTrace.query2Annotation)
it.target = constraint
]
ecore2LogicTrace.output.add(constraint)
ecore2LogicTrace.output.annotations.add(annotation)
}
for(derivedFeature : derivedFeatures.entrySet) {
val relationDefinition = derivedFeature.key.internalQueryRepresentation.lookup(viatra2LogicTrace.query2Relation)
val feature = derivedFeature.value
if(feature instanceof EAttribute) {
val declaration = ecore2Logic.relationOfAttribute(ecore2LogicTrace.trace,feature)
relationDefinition.defines = declaration
} else if(feature instanceof EReference) {
val declaration = ecore2Logic.relationOfReference(ecore2LogicTrace.trace,feature)
relationDefinition.defines = declaration
} else throw new IllegalArgumentException('''Unknown feature: «feature»''')
val annotation = createDefinedByDerivedFeature => [
it.target = relationDefinition.defines
it.query = derivedFeature.key.internalQueryRepresentation.lookup(viatra2LogicTrace.query2Annotation)
]
ecore2LogicTrace.output.annotations+=annotation
}
}
def transformBody(PBody body,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
val variable2Variable = new HashMap
// Parameter variables
for(parameter : body.symbolicParameters) {
val param = parameter.patternParameter
val variable = parameter.parameterVariable
variable2Variable.put(variable,(body.pattern->param).lookup(viatra2LogicTrace.parameter2Variable))
}
// Inner Variables
val innerPositiveVariables = new LinkedList
val innerNegativeVariables = new LinkedList
for(innerVariable : body.uniqueVariables) {
if(!variable2Variable.containsKey(innerVariable)) {
val name = '''variable «innerVariable.name.normalizeName»'''
//println(body.pattern.fullyQualifiedName + "-")
val logicType = getType(innerVariable,body,ecore2LogicTrace)
val logicVariable = createVar(name,logicType)
if(innerVariable.isPositiveVariable) {
innerPositiveVariables += logicVariable
} else {
innerNegativeVariables += logicVariable
}
variable2Variable.put(innerVariable,logicVariable)
}
}
val translatedConstraints = body.constraints.map[
constraint2Logic.transformConstraint(it,
ecore2LogicTrace,viatra2LogicTrace,variable2Variable,config)
].filterNull
val allConstraintIsSatisfied = And(translatedConstraints)
val allNegativeVariablesAreSatisfied = if(innerNegativeVariables.empty) {
allConstraintIsSatisfied
} else {
Forall(innerNegativeVariables,allConstraintIsSatisfied);
}
val allVariablesAreExisting = if(innerPositiveVariables.empty) {
allNegativeVariablesAreSatisfied
} else {
Exists(innerPositiveVariables,allNegativeVariablesAreSatisfied);
}
return allVariablesAreExisting
}
def private normalizeName(String variableName) {
return variableName.replaceAll("[\\W]|_", "")
}
def TypeDescriptor getType(PVariable v, PBody body, TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace) {
var Map<PVariable, Set<TypeJudgement>> unaryTypeRestrictions = null;
if (v.isPositiveVariable) {
unaryTypeRestrictions = body.getAllUnaryTypeRestrictions(EMFQueryMetaContext.DEFAULT)
if (!unaryTypeRestrictions.containsKey(v)) {
throw new IllegalArgumentException('''No positive constraints on variable: «v.name»''')
}
val allTypes = v.lookup(unaryTypeRestrictions)
val types = allTypes.filter[it.inputKey instanceof BaseEMFTypeKey<?>].toSet
if (types.size == 0) {
throw new AssertionError('''
No EMF type for «v.name».
Non-EMF types: [«FOR t : allTypes.filter[!types.contains(it)].map[inputKey.prettyPrintableName] SEPARATOR ','»«t»«ENDFOR»]''')
} else if (types.size == 1) {
return (types.head.inputKey as BaseEMFTypeKey<? extends EClassifier>).
transformTypeReference(ecore2LogicTrace)
} else {
// println('''
// Type Judgements of «v.name»
// «types.map[inputKey.prettyPrintableName]»
// ''')
return this.ecore2Logic.TypeofEClass(ecore2LogicTrace.trace, calculateCommonSubtype(types.map [
(it.inputKey as BaseEMFTypeKey<EClass>).emfKey as EClass
], ecore2LogicTrace))
}
} else {
val onlyConstraint = v.referringConstraints.head as NegativePatternCall
val indexOfVariable = v.lookup(onlyConstraint.actualParametersTuple.invertIndex)
val parameter = onlyConstraint.referredQuery.parameters.get(indexOfVariable)
val declaredUnaryType = parameter.declaredUnaryType as BaseEMFTypeKey<? extends EClassifier>
if (declaredUnaryType === null) {
throw new UnsupportedOperationException(
'''parameter «parameter.name» in pattern «onlyConstraint.referredQuery.fullyQualifiedName» does not have type!''')
} else
return declaredUnaryType.transformTypeReference(ecore2LogicTrace)
}
}
def calculateCommonSubtype(Iterable<EClass> allsuperClasses,TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace) {
val superClasses = allsuperClasses.filter[it!=EcorePackage.eINSTANCE.EObject]
val head = superClasses.head
if(superClasses.forall[it.isSuperTypeOf(head)]) return head
else {
val allClasses = this.ecore2Logic.allClassesInScope(ecore2LogicTrace.trace)
//println(allClasses.toList)
val commonSubclasses = allClasses.filter[sub | superClasses.forall[sup | sup.isSuperTypeOf(sub)]]
//println(commonSubclasses.toList)
val mostGenericSubclasses = commonSubclasses.filter[generic | ! commonSubclasses.exists[moreGeneric | moreGeneric!=generic && moreGeneric.isSuperTypeOf(generic)]]
//println(mostGenericSubclasses.toList)
if(mostGenericSubclasses.isEmpty) throw new AssertionError('''No common supertype:
«FOR s : superClasses SEPARATOR ", "»«s.name»«ENDFOR»''')
else return mostGenericSubclasses.head
}
}
def dispatch transformTypeReference(EDataTypeInSlotsKey k,TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace) {
val w = k.wrappedKey
if(w == EcorePackage.Literals.EINT) {
return builder.LogicInt
} else if(w == EcorePackage.Literals.EDOUBLE || w == EcorePackage.Literals.EFLOAT) {
return builder.LogicReal
} else if(w == EcorePackage.Literals.EBOOLEAN) {
return builder.LogicBool
} else if(w instanceof EEnum) {
this.ecore2Logic.TypeofEEnum(ecore2LogicTrace.trace,w);
} else throw new UnsupportedOperationException('''Unknown reference type «w.class.name»''')
}
def dispatch transformTypeReference(EClassTransitiveInstancesKey k,TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace) {
this.ecore2Logic.TypeofEClass(ecore2LogicTrace.trace,k.wrappedKey)
}
def boolean isPositiveVariable(PVariable v) {
val constraints = v.referringConstraints
if(constraints.size == 1) {
val onlyConstraint = constraints.head
if(onlyConstraint instanceof NegativePatternCall) {
return false
}
}
return true
}
}
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