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package hu.bme.mit.inf.dslreasoner.viatrasolver.logic2viatra
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PartialInterpretation
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PartialTypeInterpratation
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.Scope
import java.util.HashMap
import java.util.Map
import java.util.Set
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PartialComplexTypeInterpretation
import java.util.HashSet
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PartialPrimitiveInterpretation
class ScopePropagator {
PartialInterpretation partialInterpretation
Map<PartialTypeInterpratation,Scope> type2Scope
val Map<Scope, Set<Scope>> superScopes
val Map<Scope, Set<Scope>> subScopes
public new(PartialInterpretation p) {
partialInterpretation = p
type2Scope = new HashMap
for(scope : p.scopes) {
type2Scope.put(scope.targetTypeInterpretation,scope)
}
superScopes = new HashMap
subScopes = new HashMap
for(scope : p.scopes) {
superScopes.put(scope,new HashSet)
subScopes.put(scope,new HashSet)
}
for(scope : p.scopes) {
val target = scope.targetTypeInterpretation
if(target instanceof PartialComplexTypeInterpretation) {
val supertypeInterpretations = target.supertypeInterpretation
for(supertypeInterpretation : supertypeInterpretations) {
val supertypeScope = type2Scope.get(supertypeInterpretation)
superScopes.get(scope).add(supertypeScope)
subScopes.get(supertypeScope).add(scope)
}
}
}
}
def public propagateAllScopeConstraints() {
var boolean hadChanged
do{
hadChanged = false
for(superScopeEntry : superScopes.entrySet) {
val sub = superScopeEntry.key
hadChanged = propagateLowerLimitUp(sub,partialInterpretation) || hadChanged
hadChanged = propagateUpperLimitDown(sub,partialInterpretation) || hadChanged
for(sup: superScopeEntry.value) {
hadChanged = propagateLowerLimitUp(sub,sup) || hadChanged
hadChanged = propagateUpperLimitDown(sub,sup) || hadChanged
}
}
} while(hadChanged)
// println('''All constraints are propagated.''')
}
def public propagateAdditionToType(PartialTypeInterpratation t) {
val isPrimitive = t instanceof PartialPrimitiveInterpretation || t === null
if(!isPrimitive) {
// println('''Adding to «(t as PartialComplexTypeInterpretation).interpretationOf.name»''')
val targetScope = type2Scope.get(t)
if(targetScope!==null) {
targetScope.removeOne
val sups = superScopes.get(targetScope)
sups.forEach[removeOne]
}
if(this.partialInterpretation.minNewElements > 0 ) {
this.partialInterpretation.minNewElements = this.partialInterpretation.minNewElements-1
}
if(this.partialInterpretation.maxNewElements > 0) {
this.partialInterpretation.maxNewElements = this.partialInterpretation.maxNewElements-1
} else if(this.partialInterpretation.maxNewElements === 0) {
this.partialInterpretation.maxNewElements = 0
//throw new IllegalArgumentException('''Inconsistent object creation: lower node limit is 0!''')
}
// subScopes.get(targetScope).forEach[propagateUpperLimitDown(it,targetScope)]
// for(sup: sups) {
// subScopes.get(sup).forEach[propagateUpperLimitDown(it,sup)]
// }
// for(scope : type2Scope.values) {
// propagateUpperLimitDown(scope,partialInterpretation)
// }
propagateAllScopeConstraints
// println('''Target Scope: «targetScope.minNewElements» - «targetScope.maxNewElements»''')
// println(''' «this.partialInterpretation.minNewElements» - «this.partialInterpretation.maxNewElements»''')
// this.partialInterpretation.scopes.forEach[println(''' «(it.targetTypeInterpretation as PartialComplexTypeInterpretation).interpretationOf.name»: «it.minNewElements»-«it.maxNewElements»''')]
// println('''All constraints are propagated upon increasing «(t as PartialComplexTypeInterpretation).interpretationOf.name»''')
}
}
private def propagateLowerLimitUp(Scope subScope, Scope superScope) {
if(subScope.minNewElements>superScope.minNewElements) {
// println('''
// «(subScope.targetTypeInterpretation as PartialComplexTypeInterpretation).interpretationOf.name» -> «(superScope.targetTypeInterpretation as PartialComplexTypeInterpretation).interpretationOf.name»
// superScope.minNewElements «superScope.minNewElements» = subScope.minNewElements «subScope.minNewElements»
// ''')
superScope.minNewElements = subScope.minNewElements
return true
} else {
return false
}
}
private def propagateUpperLimitDown(Scope subScope, Scope superScope) {
if(superScope.maxNewElements>=0 && (superScope.maxNewElements<subScope.maxNewElements || subScope.maxNewElements<0)) {
// println('''
// «(subScope.targetTypeInterpretation as PartialComplexTypeInterpretation).interpretationOf.name» -> «(superScope.targetTypeInterpretation as PartialComplexTypeInterpretation).interpretationOf.name»
// subScope.maxNewElements «subScope.maxNewElements» = superScope.maxNewElements «superScope.maxNewElements»
// ''')
subScope.maxNewElements = superScope.maxNewElements
return true
} else {
return false
}
}
private def propagateLowerLimitUp(Scope subScope, PartialInterpretation p) {
if(subScope.minNewElements>p.minNewElements) {
// println('''
// «(subScope.targetTypeInterpretation as PartialComplexTypeInterpretation).interpretationOf.name» -> nodes
// p.minNewElements «p.minNewElements» = subScope.minNewElements «subScope.minNewElements»
// ''')
p.minNewElements = subScope.minNewElements
return true
} else {
return false
}
}
private def propagateUpperLimitDown(Scope subScope, PartialInterpretation p) {
if(p.maxNewElements>=0 && (p.maxNewElements<subScope.maxNewElements || subScope.maxNewElements<0)) {
// println('''
// «(subScope.targetTypeInterpretation as PartialComplexTypeInterpretation).interpretationOf.name» -> nodes
// subScope.maxNewElements «subScope.maxNewElements» = p.maxNewElements «p.maxNewElements»
// ''')
subScope.maxNewElements = p.maxNewElements
return true
} else {
return false
}
}
private def removeOne(Scope scope) {
if(scope.maxNewElements===0) {
scope.maxNewElements=0
//throw new IllegalArgumentException('''Inconsistent object creation: «scope.targetTypeInterpretation»''')
} else if(scope.maxNewElements>0) {
scope.maxNewElements= scope.maxNewElements-1
}
if(scope.minNewElements>0) {
scope.minNewElements= scope.minNewElements-1
}
}
}
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