6433387082

Committed 06 Oct 2023 03:10PM UTC coverage: 92.296% (-0.007%) from 92.303%

Build # 6433387082

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push

github

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mtf90

Commit Message

update Falk's developer id

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83.33

/commons/util/src/main/java/de/learnlib/util/AbstractBFOracle.java

/* Copyright (C) 2013-2023 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.util;

import java.util.LinkedList;
import java.util.Queue;

import de.learnlib.api.oracle.AutomatonOracle;
import de.learnlib.api.oracle.MembershipOracle;
import de.learnlib.api.query.DefaultQuery;
import net.automatalib.automata.DeterministicAutomaton;
import net.automatalib.words.Word;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * An {@link AutomatonOracle} that processes words in a breadth-first manner.
 *
 * @param <A> the automaton type
 * @param <I> the input type
 * @param <D> the output type
 */
public abstract class AbstractBFOracle<A extends DeterministicAutomaton<?, I, ?>, I, D>
        implements AutomatonOracle<A, I, D> {

    /**
     * The queue containing the words to find a counterexample with.
     */
    private final Queue<Word<I>> queue = new LinkedList<>();

    /**
     * The {@link MembershipOracle} used to answer {@link DefaultQuery}s.
     */
    private final MembershipOracle<I, D> membershipOracle;

    private double multiplier;

    protected AbstractBFOracle(MembershipOracle<I, D> membershipOracle, double multiplier) {
        this.membershipOracle = membershipOracle;
        this.multiplier = multiplier;
    }

    @Override
    public DefaultQuery<I, D> processInput(A hypothesis, Word<I> input) {
        final DefaultQuery<I, D> query = new DefaultQuery<>(input);
        membershipOracle.processQuery(query);

        return query;
    }

    @Override
    public double getMultiplier() {
        return multiplier;
    }

    @Override
    public void setMultiplier(double multiplier) {
        this.multiplier = multiplier;
    }

    public MembershipOracle<I, D> getMembershipOracle() {
        return membershipOracle;
    }

    /**
     * Returns the next input word, by popping from a queue.
     *
     * @see AutomatonOracle#nextInput()
     */
    @Override
    public @Nullable Word<I> nextInput() {
        return queue.poll();
    }

    /**
     * Adds a new input word to the queue.
     *
     * @see AutomatonOracle#addWord(Word)
     */
    @Override
    public void addWord(Word<I> input) {
        queue.add(input);
    }

    /**
     * Clears the queue.
     */
    @Override
    public void pre() {
        queue.clear();
        addWord(Word.epsilon());
    }
}

1	/* Copyright (C) 2013-2023 TU Dortmund
2	* This file is part of LearnLib, http://www.learnlib.de/.
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	package de.learnlib.util;
17
18	import java.util.LinkedList;
19	import java.util.Queue;
20
21	import de.learnlib.api.oracle.AutomatonOracle;
22	import de.learnlib.api.oracle.MembershipOracle;
23	import de.learnlib.api.query.DefaultQuery;
24	import net.automatalib.automata.DeterministicAutomaton;
25	import net.automatalib.words.Word;
26	import org.checkerframework.checker.nullness.qual.Nullable;
27
28	/**
29	* An {@link AutomatonOracle} that processes words in a breadth-first manner.
30	*
31	* @param <A> the automaton type
32	* @param <I> the input type
33	* @param <D> the output type
34	*/
35	public abstract class AbstractBFOracle<A extends DeterministicAutomaton<?, I, ?>, I, D>
36	implements AutomatonOracle<A, I, D> {
37
38	/**
39	* The queue containing the words to find a counterexample with.
40	*/
41	private final Queue<Word<I>> queue = new LinkedList<>();	1✔
42
43	/**
44	* The {@link MembershipOracle} used to answer {@link DefaultQuery}s.
45	*/
46	private final MembershipOracle<I, D> membershipOracle;
47
48	private double multiplier;
49
50	protected AbstractBFOracle(MembershipOracle<I, D> membershipOracle, double multiplier) {	1✔
51	this.membershipOracle = membershipOracle;	1✔
52	this.multiplier = multiplier;	1✔
53	}	1✔
54
55	@Override
56	public DefaultQuery<I, D> processInput(A hypothesis, Word<I> input) {
57	final DefaultQuery<I, D> query = new DefaultQuery<>(input);	1✔
58	membershipOracle.processQuery(query);	1✔
59
60	return query;	1✔
61	}
62
63	@Override
64	public double getMultiplier() {
65	return multiplier;	1✔
66	}
67
68	@Override
69	public void setMultiplier(double multiplier) {
70	this.multiplier = multiplier;	×
71	}	×
72
73	public MembershipOracle<I, D> getMembershipOracle() {
74	return membershipOracle;	×
75	}
76
77	/**
78	* Returns the next input word, by popping from a queue.
79	*
80	* @see AutomatonOracle#nextInput()
81	*/
82	@Override
83	public @Nullable Word<I> nextInput() {
84	return queue.poll();	1✔
85	}
86
87	/**
88	* Adds a new input word to the queue.
89	*
90	* @see AutomatonOracle#addWord(Word)
91	*/
92	@Override
93	public void addWord(Word<I> input) {
94	queue.add(input);	1✔
95	}	1✔
96
97	/**
98	* Clears the queue.
99	*/
100	@Override
101	public void pre() {
102	queue.clear();	1✔
103	addWord(Word.epsilon());	1✔
104	}	1✔
105	}

LearnLib / learnlib / 6433387082

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