6433387082

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

Build # 6433387082

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push

github

Committed by

mtf90

Commit Message

update Falk's developer id

Run Details

11573 of 12539 relevant lines covered (92.3%)

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89.47

/commons/util/src/main/java/de/learnlib/util/moore/SymbolOracleWrapper.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.moore;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import de.learnlib.api.oracle.MembershipOracle;
import de.learnlib.api.query.Query;
import net.automatalib.words.Word;

/**
 * Word-to-Symbol-Oracle adapter.
 * <p>
 * Wraps an oracle which uses {@link Word}s as its output to an oracle which only yields the last symbol of each
 * output.
 *
 * @param <I>
 *         input symbol type
 * @param <O>
 *         output symbol type
 */
final class SymbolOracleWrapper<I, O> implements MembershipOracle<I, O> {

    private final MembershipOracle<I, Word<O>> wordOracle;

    /**
     * Constructor.
     *
     * @param wordOracle
     *         the {@link MembershipOracle} returning output words.
     */
    SymbolOracleWrapper(MembershipOracle<I, Word<O>> wordOracle) {
        this.wordOracle = wordOracle;
    }

    @Override
    public void processQueries(Collection<? extends Query<I, O>> queries) {
        List<LastSymbolQuery<I, O>> lsQueries = new ArrayList<>(queries.size());
        for (Query<I, O> qry : queries) {
            lsQueries.add(new LastSymbolQuery<>(qry));
        }

        wordOracle.processQueries(lsQueries);
    }

    private static final class LastSymbolQuery<I, O> extends Query<I, Word<O>> {

        private final Query<I, O> originalQuery;

        LastSymbolQuery(Query<I, O> originalQuery) {
            this.originalQuery = originalQuery;
        }

        @Override
        public void answer(Word<O> output) {
            if (output.isEmpty()) {
                throw new IllegalArgumentException("Query answer must not be empty");
            }
            originalQuery.answer(output.lastSymbol());
        }

        @Override
        public Word<I> getPrefix() {
            return originalQuery.getPrefix();
        }

        @Override
        public Word<I> getSuffix() {
            return originalQuery.getSuffix();
        }

        @Override
        public String toString() {
            return originalQuery.toString();
        }
    }
}

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.moore;
17
18	import java.util.ArrayList;
19	import java.util.Collection;
20	import java.util.List;
21
22	import de.learnlib.api.oracle.MembershipOracle;
23	import de.learnlib.api.query.Query;
24	import net.automatalib.words.Word;
25
26	/**
27	* Word-to-Symbol-Oracle adapter.
28	* <p>
29	* Wraps an oracle which uses {@link Word}s as its output to an oracle which only yields the last symbol of each
30	* output.
31	*
32	* @param <I>
33	* input symbol type
34	* @param <O>
35	* output symbol type
36	*/
37	final class SymbolOracleWrapper<I, O> implements MembershipOracle<I, O> {
38
39	private final MembershipOracle<I, Word<O>> wordOracle;
40
41	/**
42	* Constructor.
43	*
44	* @param wordOracle
45	* the {@link MembershipOracle} returning output words.
46	*/
47	SymbolOracleWrapper(MembershipOracle<I, Word<O>> wordOracle) {	1✔
48	this.wordOracle = wordOracle;	1✔
49	}	1✔
50
51	@Override
52	public void processQueries(Collection<? extends Query<I, O>> queries) {
53	List<LastSymbolQuery<I, O>> lsQueries = new ArrayList<>(queries.size());	1✔
54	for (Query<I, O> qry : queries) {	1✔
55	lsQueries.add(new LastSymbolQuery<>(qry));	1✔
56	}	1✔
57
58	wordOracle.processQueries(lsQueries);	1✔
59	}	1✔
60
61	private static final class LastSymbolQuery<I, O> extends Query<I, Word<O>> {
62
63	private final Query<I, O> originalQuery;
64
65	LastSymbolQuery(Query<I, O> originalQuery) {	1✔
66	this.originalQuery = originalQuery;	1✔
67	}	1✔
68
69	@Override
70	public void answer(Word<O> output) {
71	if (output.isEmpty()) {	1✔
72	throw new IllegalArgumentException("Query answer must not be empty");	×
73	}
74	originalQuery.answer(output.lastSymbol());	1✔
75	}	1✔
76
77	@Override
78	public Word<I> getPrefix() {
79	return originalQuery.getPrefix();	1✔
80	}
81
82	@Override
83	public Word<I> getSuffix() {
84	return originalQuery.getSuffix();	1✔
85	}
86
87	@Override
88	public String toString() {
89	return originalQuery.toString();	×
90	}
91	}
92	}

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