| 1 | /******************************************************************************* | |
| 2 | * Copyright (C) 2026, Leo Galambos | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions are met: | |
| 7 | * | |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, | |
| 9 | * this list of conditions and the following disclaimer. | |
| 10 | * | |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 12 | * this list of conditions and the following disclaimer in the documentation | |
| 13 | * and/or other materials provided with the distribution. | |
| 14 | * | |
| 15 | * 3. All advertising materials mentioning features or use of this software must | |
| 16 | * display the following acknowledgement: | |
| 17 | * This product includes software developed by the Egothor project. | |
| 18 | * | |
| 19 | * 4. Neither the name of the copyright holder nor the names of its contributors | |
| 20 | * may be used to endorse or promote products derived from this software | |
| 21 | * without specific prior written permission. | |
| 22 | * | |
| 23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 24 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 27 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 29 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 30 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 31 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 32 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 33 | * POSSIBILITY OF SUCH DAMAGE. | |
| 34 | ******************************************************************************/ | |
| 35 | package org.egothor.stemmer.trie; | |
| 36 | ||
| 37 | import java.util.LinkedHashMap; | |
| 38 | import java.util.Map; | |
| 39 | ||
| 40 | import org.egothor.stemmer.ReductionSettings; | |
| 41 | ||
| 42 | /** | |
| 43 | * Reduction context used while canonicalizing mutable nodes. | |
| 44 | * | |
| 45 | * @param <V> value type | |
| 46 | */ | |
| 47 | public final class ReductionContext<V> { | |
| 48 | ||
| 49 | /** | |
| 50 | * Reduction settings. | |
| 51 | */ | |
| 52 | private final ReductionSettings settings; | |
| 53 | ||
| 54 | /** | |
| 55 | * Canonical nodes by signature. | |
| 56 | */ | |
| 57 | private final Map<ReductionSignature<V>, ReducedNode<V>> canonicalNodes; | |
| 58 | ||
| 59 | /** | |
| 60 | * Creates a new context. | |
| 61 | * | |
| 62 | * @param settings settings | |
| 63 | */ | |
| 64 | public ReductionContext(final ReductionSettings settings) { | |
| 65 | this.settings = settings; | |
| 66 | this.canonicalNodes = new LinkedHashMap<>(); | |
| 67 | } | |
| 68 | ||
| 69 | /** | |
| 70 | * Looks up a canonical node. | |
| 71 | * | |
| 72 | * @param signature signature | |
| 73 | * @return canonical node, or {@code null} if absent | |
| 74 | */ | |
| 75 | public ReducedNode<V> lookup(final ReductionSignature<V> signature) { | |
| 76 |
1
1. lookup : replaced return value with null for org/egothor/stemmer/trie/ReductionContext::lookup → KILLED |
return this.canonicalNodes.get(signature); |
| 77 | } | |
| 78 | ||
| 79 | /** | |
| 80 | * Registers a canonical node. | |
| 81 | * | |
| 82 | * @param signature signature | |
| 83 | * @param node node | |
| 84 | */ | |
| 85 | public void register(final ReductionSignature<V> signature, final ReducedNode<V> node) { | |
| 86 | this.canonicalNodes.put(signature, node); | |
| 87 | } | |
| 88 | ||
| 89 | /** | |
| 90 | * Returns the settings. | |
| 91 | * | |
| 92 | * @return settings | |
| 93 | */ | |
| 94 | public ReductionSettings settings() { | |
| 95 |
1
1. settings : replaced return value with null for org/egothor/stemmer/trie/ReductionContext::settings → KILLED |
return this.settings; |
| 96 | } | |
| 97 | ||
| 98 | /** | |
| 99 | * Returns the number of canonical nodes. | |
| 100 | * | |
| 101 | * @return canonical node count | |
| 102 | */ | |
| 103 | public int canonicalNodeCount() { | |
| 104 |
1
1. canonicalNodeCount : replaced int return with 0 for org/egothor/stemmer/trie/ReductionContext::canonicalNodeCount → KILLED |
return this.canonicalNodes.size(); |
| 105 | } | |
| 106 | } | |
Mutations | ||
| 76 |
1.1 |
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| 95 |
1.1 |
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| 104 |
1.1 |