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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
|
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.*
@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»".''',e)
}
}
for(query: queries.patterns) {
try {
this.transformQuerySpecification(query,ecore2LogicTrace,viatra2LogicTrace,config)
} catch (IllegalArgumentException e){
throw new IllegalArgumentException('''Unable to translate query: "«query.fullyQualifiedName»".''',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.INSTANCE,true)
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) {
if(v.isPositiveVariable) {
val allTypes = v.lookup(
body.getAllUnaryTypeRestrictions(EMFQueryMetaContext.INSTANCE))
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
}
}
|