1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
package hu.bme.mit.inf.dslreasoner.viatrasolver.logic2viatra.patterns
import com.google.common.collect.ImmutableList
import com.google.common.collect.ImmutableMap
import com.google.common.collect.ImmutableSet
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.Relation
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.RelationDeclaration
import hu.bme.mit.inf.dslreasoner.logic.model.logicproblem.LogicProblem
import hu.bme.mit.inf.dslreasoner.viatrasolver.logic2viatra.Modality
import java.util.Collection
import java.util.LinkedList
import java.util.Map
import java.util.Set
import org.eclipse.xtend2.lib.StringConcatenationClient
class RelationRefinementGenerator {
PatternGenerator base;
new(PatternGenerator base) {
this.base = base
}
def CharSequence generateRefineReference(LogicProblem p,
Collection<UnitPropagationPatternGenerator> unitPropagationPatternGenerators) {
val mustRelations = getMustRelations(unitPropagationPatternGenerators)
'''
«FOR relationRefinement : this.getRelationRefinements(p)»
pattern «relationRefinementQueryName(relationRefinement.key,relationRefinement.value)»(
problem:LogicProblem, interpretation:PartialInterpretation,
relationIterpretation:PartialRelationInterpretation«IF relationRefinement.value !== null», oppositeInterpretation:PartialRelationInterpretation«ENDIF»,
from: DefinedElement, to: DefinedElement)
{
find interpretation(problem,interpretation);
PartialInterpretation.partialrelationinterpretation(interpretation,relationIterpretation);
PartialRelationInterpretation.interpretationOf.name(relationIterpretation,"«relationRefinement.key.name»");
«IF relationRefinement.value !== null»
PartialInterpretation.partialrelationinterpretation(interpretation,oppositeInterpretation);
PartialRelationInterpretation.interpretationOf.name(oppositeInterpretation,"«relationRefinement.value.name»");
«ENDIF»
find mustExist(problem, interpretation, from);
find mustExist(problem, interpretation, to);
«base.typeIndexer.referInstanceOfByReference(relationRefinement.key.parameters.get(0), Modality::MUST,"from")»
«base.typeIndexer.referInstanceOfByReference(relationRefinement.key.parameters.get(1), Modality::MUST,"to")»
«base.relationDeclarationIndexer.referRelation(relationRefinement.key,"from","to",Modality.MAY)»
neg «base.relationDeclarationIndexer.referRelation(relationRefinement.key,"from","to",Modality.MUST)»
}
«IF isMustPropagationQueryNeeded(relationRefinement.key, relationRefinement.value, mustRelations)»
pattern «mustPropagationQueryName(relationRefinement.key)»(
problem:LogicProblem, interpretation:PartialInterpretation,
relationIterpretation:PartialRelationInterpretation«IF relationRefinement.value !== null», oppositeInterpretation:PartialRelationInterpretation«ENDIF»,
from: DefinedElement, to: DefinedElement)
«FOR body : getMustPropagationBodies(relationRefinement.key, relationRefinement.value, mustRelations) SEPARATOR " or "»
{
«referRefinementQuery(relationRefinement.key, relationRefinement.value, "relationIterpretation", "oppositeInterpretation", "from", "to")»
«body»
}
«ENDFOR»
«ENDIF»
«ENDFOR»
'''
}
def String relationRefinementQueryName(RelationDeclaration relation, Relation inverseRelation) {
'''«IF inverseRelation !== null»refineRelation_«base.canonizeName(relation.name)»_and_«base.canonizeName(inverseRelation.name)»«ELSE»refineRelation_«base.canonizeName(relation.name)»«ENDIF»'''
}
def String mustPropagationQueryName(RelationDeclaration relation) {
'''mustPropagation_«base.canonizeName(relation.name)»'''
}
def referRefinementQuery(RelationDeclaration relation, Relation inverseRelation, String relInterpretationName,
String inverseInterpretationName, String sourceName,
String targetName) '''find «this.relationRefinementQueryName(relation,inverseRelation)»(problem, interpretation, «relInterpretationName», «IF inverseRelation !== null»«inverseInterpretationName», «ENDIF»«sourceName», «targetName»);'''
def getRefineRelationQueries(LogicProblem p) {
getRelationRefinements(p).toInvertedMap[relationRefinementQueryName(it.key, it.value)]
}
def getRelationRefinements(LogicProblem p) {
val inverses = base.getInverseRelations(p)
val containments = base.getContainments(p)
val list = new LinkedList
for (relation : p.relations.filter(RelationDeclaration)) {
if (!containments.contains(relation)) {
if (inverses.containsKey(relation)) {
val inverse = inverses.get(relation)
if (!containments.contains(inverse)) {
if (base.isRepresentative(relation, inverse)) {
list += (relation -> inverse)
}
}
} else {
list += (relation -> null)
}
}
}
return list
}
def getMustPropagationQueries(LogicProblem p,
Collection<UnitPropagationPatternGenerator> unitPropagationPatternGenerators) {
val refinements = getRelationRefinements(p)
val mustRelations = getMustRelations(unitPropagationPatternGenerators)
refinements.filter[isMustPropagationQueryNeeded(key, value, mustRelations)].toInvertedMap [
mustPropagationQueryName(key)
]
}
private def getMustRelations(Collection<UnitPropagationPatternGenerator> unitPropagationPatternGenerators) {
ImmutableMap.copyOf(unitPropagationPatternGenerators.flatMap[mustPatterns.entrySet].groupBy[key].mapValues [
ImmutableSet.copyOf(map[value])
])
}
private def isMustPropagationQueryNeeded(Relation relation, Relation inverseRelation,
Map<Relation, ? extends Set<String>> mustRelations) {
val mustSet = mustRelations.get(relation)
if (mustSet !== null && !mustSet.empty) {
return true
}
if (inverseRelation !== null) {
val inverseMustSet = mustRelations.get(inverseRelation)
if (inverseMustSet !== null && !inverseMustSet.empty) {
return true
}
}
false
}
private def getMustPropagationBodies(Relation relation, Relation inverseRelation,
Map<Relation, ? extends Set<String>> mustRelations) {
val builder = ImmutableList.<StringConcatenationClient>builder()
val mustSet = mustRelations.get(relation)
if (mustSet !== null) {
for (refinementQuery : mustSet) {
builder.add('''find «refinementQuery»(problem, interpretation, from, to);''')
}
}
if (inverseRelation !== null && inverseRelation != relation) {
val inverseMustSet = mustRelations.get(inverseRelation)
if (inverseMustSet !== null) {
for (refinementQuery : inverseMustSet) {
builder.add('''find «refinementQuery»(problem, interpretation, to, from);''')
}
}
}
builder.build
}
}
|
