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A collection of equivalence oracles
/* Copyright (C) 2013-2018 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.MembershipOracle;
import net.automatalib.automata.UniversalDeterministicAutomaton;
import net.automatalib.automata.concepts.Output;
import net.automatalib.automata.fsa.DFA;
import net.automatalib.automata.transout.MealyMachine;
import net.automatalib.util.automata.conformance.IncrementalWMethodTestsIterator;
import net.automatalib.words.Alphabet;
import net.automatalib.words.Word;
public class IncrementalWMethodEQOracle & Output, I, D>
extends AbstractTestWordEQOracle {
private final IncrementalWMethodTestsIterator incrementalWMethodIt;
private int maxDepth;
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);
this.maxDepth = maxDepth;
}
public int getMaxDepth() {
return maxDepth;
}
public void setMaxDepth(int maxDepth) {
this.incrementalWMethodIt.setMaxDepth(maxDepth);
this.maxDepth = maxDepth;
}
@Override
protected Stream> generateTestWords(A hypothesis, Collection inputs) {
// FIXME: warn about inputs being ignored?
incrementalWMethodIt.update(hypothesis);
return Streams.stream(incrementalWMethodIt);
}
public static class DFAIncrementalWMethodEQOracle extends IncrementalWMethodEQOracle, I, Boolean>
implements DFAEquivalenceOracle {
public DFAIncrementalWMethodEQOracle(MembershipOracle oracle, Alphabet alphabet) {
super(oracle, alphabet);
}
public DFAIncrementalWMethodEQOracle(MembershipOracle oracle, Alphabet alphabet, int maxDepth) {
super(oracle, alphabet, maxDepth);
}
public DFAIncrementalWMethodEQOracle(MembershipOracle oracle, Alphabet alphabet,
int maxDepth,
int batchSize) {
super(oracle, alphabet, maxDepth, batchSize);
}
}
public static class MealyIncrementalWMethodEQOracle
extends IncrementalWMethodEQOracle, I, Word>
implements MealyEquivalenceOracle {
public MealyIncrementalWMethodEQOracle(MembershipOracle> oracle, Alphabet alphabet) {
super(oracle, alphabet);
}
public MealyIncrementalWMethodEQOracle(MembershipOracle> oracle, Alphabet alphabet,
int maxDepth) {
super(oracle, alphabet, maxDepth);
}
public MealyIncrementalWMethodEQOracle(MembershipOracle> oracle, Alphabet alphabet,
int maxDepth,
int batchSize) {
super(oracle, alphabet, maxDepth, batchSize);
}
}
}