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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.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import de.learnlib.api.oracle.EquivalenceOracle;
import de.learnlib.api.query.DefaultQuery;
import net.automatalib.automata.fsa.DFA;
import net.automatalib.automata.transout.MealyMachine;
import net.automatalib.words.Word;
public class EQOracleChain implements EquivalenceOracle {
private final List> oracles;
@SafeVarargs
public EQOracleChain(EquivalenceOracle... oracles) {
this(Arrays.asList(oracles));
}
public EQOracleChain(List> oracles) {
this.oracles = new ArrayList<>(oracles);
}
@Override
public DefaultQuery findCounterExample(A hypothesis, Collection inputs) {
for (EquivalenceOracle eqOracle : oracles) {
DefaultQuery ceQry = eqOracle.findCounterExample(hypothesis, inputs);
if (ceQry != null) {
return ceQry;
}
}
return null;
}
public static class DFAEQOracleChain extends EQOracleChain, I, Boolean>
implements DFAEquivalenceOracle {
@SafeVarargs
public DFAEQOracleChain(EquivalenceOracle, I, Boolean>... oracles) {
super(oracles);
}
public DFAEQOracleChain(List, I, Boolean>> oracles) {
super(oracles);
}
}
public static class MealyEQOracleChain extends EQOracleChain, I, Word>
implements MealyEquivalenceOracle {
@SafeVarargs
public MealyEQOracleChain(EquivalenceOracle, I, Word>... oracles) {
super(oracles);
}
public MealyEQOracleChain(List, I, Word>> oracles) {
super(oracles);
}
}
}