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annotate src/goodjava/lucene/api/LuceneIndexWriter.java @ 2017:65f36a905e1e
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| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Thu, 02 Oct 2025 14:15:48 -0600 |
| parents | f48db13ae2d9 |
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| rev | line source |
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| 1460 | 1 package goodjava.lucene.api; |
| 2 | |
| 3 import java.io.IOException; | |
| 4 import java.util.Map; | |
| 5 import java.util.HashMap; | |
| 6 import java.util.List; | |
| 7 import org.apache.lucene.analysis.Analyzer; | |
| 8 import org.apache.lucene.document.Document; | |
| 9 import org.apache.lucene.document.Field; | |
| 10 import org.apache.lucene.document.StoredField; | |
| 11 import org.apache.lucene.document.StringField; | |
| 12 import org.apache.lucene.document.TextField; | |
| 13 import org.apache.lucene.document.IntField; | |
| 14 import org.apache.lucene.document.LongField; | |
| 15 import org.apache.lucene.document.DoubleField; | |
| 16 import org.apache.lucene.document.FloatField; | |
| 17 import org.apache.lucene.index.IndexWriter; | |
| 18 import org.apache.lucene.index.IndexWriterConfig; | |
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19 import org.apache.lucene.index.LiveIndexWriterConfig; |
| 1460 | 20 import org.apache.lucene.index.Term; |
| 21 import org.apache.lucene.index.DirectoryReader; | |
| 22 import org.apache.lucene.index.IndexReader; | |
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23 import org.apache.lucene.index.CheckIndex; |
| 1460 | 24 import org.apache.lucene.search.Query; |
| 25 import org.apache.lucene.search.IndexSearcher; | |
| 26 import org.apache.lucene.store.Directory; | |
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27 import goodjava.logging.Logger; |
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28 import goodjava.logging.LoggerFactory; |
| 1460 | 29 |
| 30 | |
| 31 public final class LuceneIndexWriter implements GoodIndexWriter { | |
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32 private static final Logger logger = LoggerFactory.getLogger(LuceneIndexWriter.class); |
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33 private final FieldAnalyzer fieldAnalyzer; |
| 1465 | 34 public final IndexWriter luceneWriter; |
| 1460 | 35 public final GoodIndexWriterConfig goodConfig; |
| 36 private final Map<String,Boolean> indexedMap = new HashMap<String,Boolean>(); | |
| 37 | |
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38 public LuceneIndexWriter(Directory dir,GoodIndexWriterConfig goodConfig) throws IOException { |
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39 IndexWriterConfig luceneConfig = goodConfig.newLuceneConfig(); |
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40 Analyzer analyzer = luceneConfig.getAnalyzer(); |
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41 if( !(analyzer instanceof FieldAnalyzer) ) |
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42 throw new RuntimeException("analyzer must be FieldAnalyzer"); |
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43 this.fieldAnalyzer = (FieldAnalyzer)analyzer; |
| 1465 | 44 this.luceneWriter = new IndexWriter(dir,luceneConfig); |
| 1460 | 45 this.goodConfig = goodConfig; |
| 1465 | 46 luceneWriter.commit(); // commit index creation |
| 1460 | 47 } |
| 48 | |
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49 @Override public IndexWriter getLuceneIndexWriter() { |
| 1539 | 50 return luceneWriter; |
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51 } |
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52 |
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53 @Override public void close() throws IOException { |
| 1460 | 54 luceneWriter.close(); |
| 55 } | |
| 56 | |
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57 @Override public void commit() throws IOException { |
| 1460 | 58 luceneWriter.commit(); |
| 59 } | |
| 60 | |
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61 @Override public void rollback() throws IOException { |
| 1460 | 62 luceneWriter.rollback(); |
| 63 } | |
| 64 | |
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65 @Override public void deleteAll() throws IOException { |
| 1460 | 66 luceneWriter.deleteAll(); |
| 67 } | |
| 68 | |
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69 @Override public void deleteDocuments(Query query) throws IOException { |
| 1460 | 70 luceneWriter.deleteDocuments(query); |
| 71 } | |
| 72 | |
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73 @Override public void addDocument(Map<String,Object> storedFields) throws IOException { |
| 1460 | 74 Document doc = newDocument(storedFields); |
| 75 luceneWriter.addDocument(doc); | |
| 76 } | |
| 77 | |
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78 @Override public void updateDocument(String keyFieldName,Map<String,Object> storedFields) throws IOException { |
| 1460 | 79 if( !isIndexed(keyFieldName) ) |
| 80 throw new RuntimeException("can't update using unindexed field "+keyFieldName); | |
| 81 if( fieldAnalyzer.isAdded(keyFieldName) ) | |
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82 throw new RuntimeException("can't update using analyzed field "+keyFieldName); |
| 1460 | 83 Document doc = newDocument(storedFields); |
| 84 Object keyValue = storedFields.get(keyFieldName); | |
| 85 if( keyValue==null ) | |
| 86 throw new RuntimeException("no value for field "+keyFieldName); | |
| 87 Term term = LuceneUtils.term(keyFieldName,keyValue); | |
| 88 luceneWriter.updateDocument(term,doc); | |
| 89 } | |
| 90 | |
| 91 private Document newDocument(Map<String,Object> storedFields) { | |
| 92 Document doc = new Document(); | |
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93 MoreFieldInfo more = goodConfig.getMoreFieldInfo(storedFields); |
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94 addFields( doc, storedFields, Field.Store.YES, more.boosts ); |
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95 addFields( doc, more.unstoredFields, Field.Store.NO, more.boosts ); |
| 1460 | 96 return doc; |
| 97 } | |
| 98 | |
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99 public void addDocument( Map<String,Object> storedFields, Map<String,Object> unstoredFields, Map<String,Float> boosts ) |
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100 throws IOException |
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101 { |
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102 Document doc = new Document(); |
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103 addFields( doc, storedFields, Field.Store.YES, boosts ); |
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104 addFields( doc, unstoredFields, Field.Store.NO, boosts ); |
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105 luceneWriter.addDocument(doc); |
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106 } |
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107 |
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108 private void addFields( Document doc, Map<String,Object> fields, Field.Store store, Map<String,Float> boosts ) { |
| 1460 | 109 for( Map.Entry<String,Object> entry : fields.entrySet() ) { |
| 110 String name = entry.getKey(); | |
| 111 Object value = entry.getValue(); | |
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112 Float boost = boosts.get(name); |
| 1460 | 113 if( value instanceof List ) { |
| 114 for( Object v : (List)value ) { | |
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115 doc.add( newField(name,v,store,boost) ); |
| 1460 | 116 } |
| 117 } else { | |
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118 doc.add( newField(name,value,store,boost) ); |
| 1460 | 119 } |
| 120 } | |
| 121 } | |
| 122 | |
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123 private Field newField( String name, Object value, Field.Store store, Float boost ) { |
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124 Field field = newField2(name,value,store,boost); |
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125 if( boost != null ) |
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126 field.setBoost(boost); |
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127 return field; |
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128 } |
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129 |
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130 private Field newField2( String name, Object value, Field.Store store, Float boost ) { |
| 1460 | 131 boolean isIndexed = isIndexed(name); |
| 132 if( store==Field.Store.NO && !isIndexed ) | |
| 133 throw new RuntimeException("field '"+name+"' is unstored and unindexed"); | |
| 134 if( value instanceof String ) { | |
| 135 String s = (String)value; | |
| 136 if( !isIndexed ) { | |
| 137 return new StoredField(name,s); | |
| 138 } else if( !fieldAnalyzer.isAdded(name) ) { | |
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139 if( boost == null ) { |
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140 return new StringField(name,s,store); |
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141 } else { |
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142 return new Field( name, s, Field.Store.NO, Field.Index.NOT_ANALYZED); |
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143 } |
| 1460 | 144 } else { |
| 145 return new TextField(name,s,store); | |
| 146 } | |
| 147 } else if( value instanceof Integer ) { | |
| 148 int i = (Integer)value; | |
| 149 if( !isIndexed ) { | |
| 150 return new StoredField(name,i); | |
| 151 } else { | |
| 152 return new IntField(name,i,store); | |
| 153 } | |
| 154 } else if( value instanceof Long ) { | |
| 155 long i = (Long)value; | |
| 156 if( !isIndexed ) { | |
| 157 return new StoredField(name,i); | |
| 158 } else { | |
| 159 return new LongField(name,i,store); | |
| 160 } | |
| 161 } else if( value instanceof Double ) { | |
| 162 double i = (Double)value; | |
| 163 if( !isIndexed ) { | |
| 164 return new StoredField(name,i); | |
| 165 } else { | |
| 166 return new DoubleField(name,i,store); | |
| 167 } | |
| 168 } else if( value instanceof Float ) { | |
| 169 float i = (Float)value; | |
| 170 if( !isIndexed ) { | |
| 171 return new StoredField(name,i); | |
| 172 } else { | |
| 173 return new FloatField(name,i,store); | |
| 174 } | |
| 175 } else if( value instanceof byte[] ) { | |
| 176 if( isIndexed ) | |
| 177 throw new RuntimeException("can't index byte field "+name); | |
| 178 byte[] b = (byte[])value; | |
| 179 return new StoredField(name, b); | |
| 180 } else | |
| 181 throw new RuntimeException("invalid value type "+value.getClass()+"' for field '"+name+"'"); | |
| 182 } | |
| 183 | |
| 184 private synchronized boolean isIndexed(String fieldName) { | |
| 185 Boolean b = indexedMap.get(fieldName); | |
| 186 if( b==null ) { | |
| 187 b = goodConfig.isIndexed(fieldName); | |
| 188 indexedMap.put(fieldName,b); | |
| 189 Analyzer analyzer = goodConfig.getAnalyzer(fieldName); | |
| 190 if( analyzer!=null ) | |
| 191 fieldAnalyzer.add(fieldName,analyzer); | |
| 192 } | |
| 193 return b; | |
| 194 } | |
| 195 | |
| 196 | |
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197 @Override public void reindexDocuments(final String keyFieldName,Query query) throws IOException { |
| 1465 | 198 IndexReader reader = openReader(); |
| 1460 | 199 final IndexSearcher searcher = new IndexSearcher(reader); |
| 200 searcher.search( query, new GoodCollector(){ | |
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201 @Override public void collectDoc(int iDoc) throws IOException { |
| 1460 | 202 Document doc = searcher.doc(iDoc); |
| 203 Map<String,Object> storedFields = LuceneUtils.toMap(doc); | |
| 204 updateDocument(keyFieldName,storedFields); | |
| 205 } | |
| 206 }); | |
| 207 reader.close(); | |
| 208 } | |
| 1465 | 209 |
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210 @Override public IndexReader openReader() throws IOException { |
| 1465 | 211 return DirectoryReader.open(luceneWriter.getDirectory()); |
| 212 } | |
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213 |
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214 public void check() throws IOException { |
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215 CheckIndex.Status status = new CheckIndex(luceneWriter.getDirectory()).checkIndex(); |
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216 if( !status.clean ) |
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217 logger.error("index not clean"); |
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218 } |
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220 @Override public void tag(String tag) throws IOException {} |
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221 |
| 1460 | 222 } |