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src/main/java/org/codelibs/fess/multimodal/helper/MultiModalSearchHelper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| /* | ||
| * Copyright 2012-2024 CodeLibs Project and the Others. | ||
| * | ||
| * 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 org.codelibs.fess.multimodal.helper; | ||
|
|
||
| import static org.codelibs.fess.multimodal.MultiModalConstants.CONTENT_DIMENSION; | ||
| import static org.codelibs.fess.multimodal.MultiModalConstants.CONTENT_ENGINE; | ||
| import static org.codelibs.fess.multimodal.MultiModalConstants.CONTENT_FIELD; | ||
| import static org.codelibs.fess.multimodal.MultiModalConstants.CONTENT_METHOD; | ||
| import static org.codelibs.fess.multimodal.MultiModalConstants.CONTENT_SPACE_TYPE; | ||
| import static org.codelibs.fess.multimodal.MultiModalConstants.DEFAULT_CONTENT_FIELD; | ||
| import static org.codelibs.fess.multimodal.MultiModalConstants.MIN_SCORE; | ||
|
|
||
| import javax.annotation.PostConstruct; | ||
|
|
||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| import org.codelibs.core.lang.StringUtil; | ||
| import org.codelibs.fess.es.client.SearchEngineClient; | ||
| import org.codelibs.fess.query.parser.QueryParser; | ||
| import org.codelibs.fess.util.ComponentUtil; | ||
|
|
||
| import com.google.common.base.CharMatcher; | ||
|
|
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| public class MultiModalSearchHelper { | ||
| private static final Logger logger = LogManager.getLogger(MultiModalSearchHelper.class); | ||
|
|
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| protected Float minScore; | ||
|
|
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| private String vectorField; | ||
|
|
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| @PostConstruct | ||
| public void init() { | ||
| final SearchEngineClient client = ComponentUtil.getSearchEngineClient(); | ||
| client.addDocumentSettingRewriteRule(s -> s.replace("\"codec\":", "\"knn\": true,\"codec\":")); | ||
| client.addDocumentMappingRewriteRule(s -> { | ||
| final String dimension = System.getProperty(CONTENT_DIMENSION); // ex. 512 | ||
| final String method = System.getProperty(CONTENT_METHOD); // ex. hnsw | ||
| final String engine = System.getProperty(CONTENT_ENGINE); // ex. lucene | ||
| final String spaceType = System.getProperty(CONTENT_SPACE_TYPE, "l2"); // ex. l2 | ||
| if (logger.isDebugEnabled()) { | ||
| logger.debug("field: {}, dimension: {}, method: {}, engine: {}, spaceType: {}", vectorField, dimension, method, engine, | ||
| spaceType); | ||
| } | ||
| if (StringUtil.isBlank(dimension) || StringUtil.isBlank(vectorField) || StringUtil.isBlank(method) | ||
| || StringUtil.isBlank(engine)) { | ||
| return s; | ||
| } | ||
| return s.replace("\"content\":", "\"" + vectorField + "\": {\n" // | ||
| + " \"type\": \"knn_vector\",\n" // | ||
| + " \"dimension\": " + dimension + ",\n" // | ||
| + " \"method\": {\n" // | ||
| + " \"name\": \"" + method + "\",\n" // | ||
| + " \"engine\": \"" + engine + "\",\n" // | ||
| + " \"space_type\": \"" + spaceType + "\"\n" // | ||
| + " }\n" // | ||
| + "},\n" // | ||
| + "\"content\":"); | ||
| }); | ||
|
|
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| if (ComponentUtil.hasQueryParser()) { | ||
| final QueryParser queryParser = ComponentUtil.getQueryParser(); | ||
| queryParser.addFilter((query, chain) -> chain.parse(rewriteQuery(query))); | ||
| } | ||
|
|
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| load(); | ||
| ComponentUtil.getSystemHelper().addUpdateConfigListener("MultiModalSearch", this::load); | ||
| } | ||
|
|
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| protected String load() { | ||
| final StringBuilder buf = new StringBuilder(); | ||
|
|
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| buf.append("vector_field="); | ||
| vectorField = System.getProperty(CONTENT_FIELD, DEFAULT_CONTENT_FIELD).trim(); // ex. content_vector | ||
| buf.append(vectorField); | ||
|
|
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| buf.append(", min_score="); | ||
| final String minScoreValue = System.getProperty(MIN_SCORE); | ||
| if (StringUtil.isNotBlank(minScoreValue)) { | ||
| try { | ||
| minScore = Float.valueOf(minScoreValue); | ||
| buf.append(minScore); | ||
| } catch (final NumberFormatException e) { | ||
| logger.debug("Failed to parse {}.", minScoreValue, e); | ||
| minScore = null; | ||
| } | ||
| } else { | ||
| minScore = null; | ||
| } | ||
|
|
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| return buf.toString(); | ||
| } | ||
|
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| protected String rewriteQuery(final String query) { | ||
| if (StringUtil.isBlank(query) || (query.indexOf('"') != -1) || !CharMatcher.whitespace().matchesAnyOf(query)) { | ||
| return query; | ||
| } | ||
|
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| for (final String field : ComponentUtil.getQueryFieldConfig().getSearchFields()) { | ||
| if (query.indexOf(field + ":") != -1) { | ||
| return query; | ||
| } | ||
| } | ||
|
|
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| return "\"" + query + "\""; | ||
| } | ||
|
|
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| public Float getMinScore() { | ||
| return minScore; | ||
| } | ||
|
|
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| public String getVectorField() { | ||
| return vectorField; | ||
| } | ||
| } |
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