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A collection of equivalence oracles
/* Copyright (C) 2013-2020 TU Dortmund
* This file is part of LearnLib, http://www.learnlib.de/.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.learnlib.oracle.equivalence;
import java.util.Collection;
import java.util.stream.Stream;
import com.google.common.collect.Streams;
import de.learnlib.api.oracle.EquivalenceOracle.DFAEquivalenceOracle;
import de.learnlib.api.oracle.EquivalenceOracle.MealyEquivalenceOracle;
import de.learnlib.api.oracle.MembershipOracle;
import de.learnlib.api.oracle.MembershipOracle.DFAMembershipOracle;
import de.learnlib.api.oracle.MembershipOracle.MealyMembershipOracle;
import de.learnlib.buildtool.refinement.annotation.GenerateRefinement;
import de.learnlib.buildtool.refinement.annotation.Generic;
import de.learnlib.buildtool.refinement.annotation.Interface;
import de.learnlib.buildtool.refinement.annotation.Map;
import net.automatalib.automata.UniversalDeterministicAutomaton;
import net.automatalib.automata.concepts.Output;
import net.automatalib.automata.fsa.DFA;
import net.automatalib.automata.transducers.MealyMachine;
import net.automatalib.util.automata.conformance.IncrementalWMethodTestsIterator;
import net.automatalib.words.Alphabet;
import net.automatalib.words.Word;
@GenerateRefinement(name = "DFAIncrementalWMethodEQOracle",
generics = "I",
parentGenerics = {@Generic(clazz = DFA.class, generics = {"?", "I"}),
@Generic("I"),
@Generic(clazz = Boolean.class)},
parameterMapping = @Map(from = MembershipOracle.class,
to = DFAMembershipOracle.class,
withGenerics = "I"),
interfaces = @Interface(clazz = DFAEquivalenceOracle.class, generics = "I"))
@GenerateRefinement(name = "MealyIncrementalWMethodEQOracle",
generics = {"I", "O"},
parentGenerics = {@Generic(clazz = MealyMachine.class, generics = {"?", "I", "?", "O"}),
@Generic("I"),
@Generic(clazz = Word.class, generics = "O")},
parameterMapping = @Map(from = MembershipOracle.class,
to = MealyMembershipOracle.class,
withGenerics = {"I", "O"}),
interfaces = @Interface(clazz = MealyEquivalenceOracle.class, generics = {"I", "O"}))
public class IncrementalWMethodEQOracle & Output, I, D>
extends AbstractTestWordEQOracle {
private final IncrementalWMethodTestsIterator incrementalWMethodIt;
public IncrementalWMethodEQOracle(MembershipOracle oracle, Alphabet alphabet) {
this(oracle, alphabet, 1);
}
public IncrementalWMethodEQOracle(MembershipOracle oracle, Alphabet alphabet, int maxDepth) {
this(oracle, alphabet, maxDepth, 1);
}
public IncrementalWMethodEQOracle(MembershipOracle oracle,
Alphabet alphabet,
int maxDepth,
int batchSize) {
super(oracle, batchSize);
this.incrementalWMethodIt = new IncrementalWMethodTestsIterator<>(alphabet);
this.incrementalWMethodIt.setMaxDepth(maxDepth);
}
public int getMaxDepth() {
return this.incrementalWMethodIt.getMaxDepth();
}
public void setMaxDepth(int maxDepth) {
this.incrementalWMethodIt.setMaxDepth(maxDepth);
}
@Override
protected Stream> generateTestWords(A hypothesis, Collection inputs) {
// FIXME: warn about inputs being ignored?
incrementalWMethodIt.update(hypothesis);
return Streams.stream(incrementalWMethodIt);
}
}