org.apache.lucene.index.Term Java Examples

@Test
public void shouldTurnAnalysisOn() throws SyntaxError, IOException {
  when(localParamsMock.get("command")).thenReturn("smembers");
  when(localParamsMock.get("key")).thenReturn("simpleKey");
  when(localParamsMock.getBool("useAnalyzer", false)).thenReturn(true);
  when(localParamsMock.get(QueryParsing.V)).thenReturn("string_field");
  when(requestMock.getSchema()).thenReturn(schema);
  when(schema.getQueryAnalyzer()).thenReturn(new WhitespaceAnalyzer());
  when(jedisMock.smembers(anyString())).thenReturn(new HashSet<>(Arrays.asList("123 124", "321")));
  redisQParser = new RedisQParser("string_field", localParamsMock, paramsMock, requestMock, commandHandler);
  final Query query = redisQParser.parse();
  verify(jedisMock).smembers("simpleKey");
  IndexSearcher searcher = new IndexSearcher(new MultiReader());
  final Set<Term> terms = extractTerms(searcher, query);
  Assert.assertEquals(3, terms.size());
}
 

/**
 * Constructor for an insert, a delete or an update operation.
 * @param op
 * @param doc
 * @param term
 */
public DocumentAndOp(Op op, Document doc, Term term) {
  if (op == Op.INSERT) {
    assert (doc != null);
    assert (term == null);
  } else if (op == Op.DELETE) {
    assert (doc == null);
    assert (term != null);
  } else {
    assert (op == Op.UPDATE);
    assert (doc != null);
    assert (term != null);
  }
  this.op = op;
  this.doc = doc;
  this.term = term;
}
 

protected Query doToQuery(QueryShardContext context) throws IOException {
//        Analyzer analyzer = context.getMapperService().searchAnalyzer();
        Analyzer analyzer = new WhitespaceAnalyzer();
        try (TokenStream source = analyzer.tokenStream(fieldName, value.toString())) {
            CachingTokenFilter stream = new CachingTokenFilter(new LowerCaseFilter(source));
            TermToBytesRefAttribute termAtt = stream.getAttribute(TermToBytesRefAttribute.class);
            if (termAtt == null) {
                return null;
            }
            List<CustomSpanTermQuery> clauses = new ArrayList<>();
            stream.reset();
            while (stream.incrementToken()) {
                Term term = new Term(fieldName, termAtt.getBytesRef());
                    clauses.add(new CustomSpanTermQuery(term));
            }
            return new PhraseCountQuery(clauses.toArray(new CustomSpanTermQuery[clauses.size()]), slop, inOrder, weightedCount);
        } catch (IOException e) {
            throw new RuntimeException("Error analyzing query text", e);
        }


    }
 

@Test
public void shouldAddTermsFromSortOrderDesc() throws SyntaxError, IOException {
  when(localParamsMock.get("command")).thenReturn("sort");
  when(localParamsMock.get("key")).thenReturn("simpleKey");
  when(localParamsMock.get("order")).thenReturn("desc");
  when(localParamsMock.get(QueryParsing.V)).thenReturn("string_field");
  when(jedisMock.sort(anyString(), any(SortingParams.class))).thenReturn(Arrays.asList("123", "321"));
  when(requestMock.getSchema()).thenReturn(schema);
  when(schema.getQueryAnalyzer()).thenReturn(new StandardAnalyzer());
  redisQParser = new RedisQParser("string_field", localParamsMock, paramsMock, requestMock, commandHandler);
  final Query query = redisQParser.parse();
  final ArgumentCaptor<SortingParams> argument = ArgumentCaptor.forClass(SortingParams.class);
  verify(jedisMock).sort(eq("simpleKey"), argument.capture());
  Assert.assertEquals(getSortingParamString(new SortingParams().desc()), getSortingParamString(argument.getValue()));
  IndexSearcher searcher = new IndexSearcher(new MultiReader());
  final Set<Term> terms = extractTerms(searcher, query);
  Assert.assertEquals(2, terms.size());
}
 

protected Term[] expandMultiTerm(String field, String term, int maxExpansions) throws IOException {
  if (maxExpansions == 0) {
    return new Term[0];
  }
  Set<Term> expansions = new HashSet<>();
  WildcardQuery wq = new WildcardQuery(new Term(field, term));
  expansion:
  for (final LeafReaderContext ctx : reader.leaves()) {
    Terms terms = ctx.reader().terms(field);
    if (terms != null) {
      TermsEnum termsEnum = wq.getTermsEnum(terms);
      while (termsEnum.next() != null) {
        expansions.add(new Term(field, termsEnum.term()));
        if (expansions.size() >= maxExpansions) {
          break expansion;
        }
      }
    }
  }
  return expansions.toArray(new Term[0]);
}
 

/** SpanNearQuery([A B C], N, false) ⊆ SpanNearQuery([A B C], N+1, false) */
public void testSpanNearIncreasingSloppiness3() throws Exception {
  Term t1 = randomTerm();
  Term t2 = randomTerm();
  Term t3 = randomTerm();
  SpanQuery subquery[] = new SpanQuery[] { 
                           spanQuery(new SpanTermQuery(t1)), 
                           spanQuery(new SpanTermQuery(t2)), 
                           spanQuery(new SpanTermQuery(t3)) 
                         };
  for (int i = 0; i < 10; i++) {
    SpanQuery q1 = spanQuery(new SpanNearQuery(subquery, i, false));
    SpanQuery q2 = spanQuery(new SpanNearQuery(subquery, i+1, false));
    assertSubsetOf(q1, q2);
  }
}
 

@Override
public void getDocumentsWithWordAsSet(String word, IntOpenHashSet documents) {
    DocsEnum docs = null;
    Term term = new Term(fieldName, word);
    try {
        int baseDocId;
        for (int i = 0; i < reader.length; i++) {
            docs = reader[i].termDocsEnum(term);
            baseDocId = contexts[i].docBase;
            if (docs != null) {
                while (docs.nextDoc() != DocsEnum.NO_MORE_DOCS) {
                    documents.add(baseDocId + docs.docID());
                }
            }
        }
    } catch (IOException e) {
        LOGGER.error("Error while requesting documents for word \"" + word + "\".", e);
    }
}
 

/** similar to the above, however the field exists, but we query with a term that doesnt exist too */
public void testEmptyTerm() throws Exception {
  Directory dir = newDirectory();
  RandomIndexWriter iw = new RandomIndexWriter(random(), dir);
  Document doc = new Document();
  doc.add(newTextField("foo", "bar", Field.Store.NO));
  iw.addDocument(doc);
  IndexReader ir = iw.getReader();
  iw.close();
  IndexSearcher is = newSearcher(ir);
  
  for (Similarity sim : sims) {
    is.setSimilarity(sim);
    BooleanQuery.Builder query = new BooleanQuery.Builder();
    query.add(new TermQuery(new Term("foo", "bar")), BooleanClause.Occur.SHOULD);
    query.add(new TermQuery(new Term("foo", "baz")), BooleanClause.Occur.SHOULD);
    assertEquals(1, is.search(query.build(), 10).totalHits.value);
  }
  ir.close();
  dir.close();
}
 

public void testEquals() {
  QueryUtils.checkEqual(new SynonymQuery.Builder("foo").build(), new SynonymQuery.Builder("foo").build());
  QueryUtils.checkEqual(new SynonymQuery.Builder("foo").addTerm(new Term("foo", "bar")).build(),
                        new SynonymQuery.Builder("foo").addTerm(new Term("foo", "bar")).build());

  QueryUtils.checkEqual(new SynonymQuery.Builder("a").addTerm(new Term("a", "a")).addTerm(new Term("a", "b")).build(),
                        new SynonymQuery.Builder("a").addTerm(new Term("a", "b")).addTerm(new Term("a", "a")).build());

  QueryUtils.checkEqual(
      new SynonymQuery.Builder("field")
          .addTerm(new Term("field", "b"), 0.4f)
          .addTerm(new Term("field", "c"), 0.2f)
          .addTerm(new Term("field", "d")).build(),
      new SynonymQuery.Builder("field")
          .addTerm(new Term("field", "b"), 0.4f)
          .addTerm(new Term("field", "c"), 0.2f)
          .addTerm(new Term("field", "d")).build());

}
 

private void debugExplainResults(String indexName, Hits hits, IndexSearcher searcher,
        Query q, Set<Term> queryTerms)
    throws IOException {
    log.debug("Parsed Query is " + q.toString());
    log.debug("Looking at index:  " + indexName);
    for (int i = 0; i < hits.length(); i++) {
        if ((i < 10)) {
            Document doc = hits.doc(i);
            Float score = hits.score(i);
            Explanation ex = searcher.explain(q, hits.id(i));
            log.debug("Looking at hit<" + i + ", " + hits.id(i) + ", " + score +
                    ">: " + doc);
            log.debug("Explanation: " + ex);
            MatchingField match = new MatchingField(q.toString(), doc, queryTerms);
            String fieldName = match.getFieldName();
            String fieldValue = match.getFieldValue();
            log.debug("Guessing that matched fieldName is " + fieldName + " = " +
                    fieldValue);
        }
    }
}
 

@Override
public QParser createParser(String qstr, SolrParams localParams, SolrParams params, SolrQueryRequest req) {
    return new QParser(qstr, localParams, params, req) {

        @Override
        public Query parse() throws SyntaxError {
            String fieldName = Preconditions.checkNotNull(localParams.get(SETVAL_FIELD_NAME));
            String countFieldName = Preconditions.checkNotNull(localParams.get(COUNT_FIELD_NAME));
            boolean allowMissingValues = Boolean.parseBoolean(Preconditions.checkNotNull(localParams.get(MISSING_VAL_ALLOWED)));
            String wildcardToken = localParams.get(WILDCARD_CHAR);

            LongValuesSource minimumNumberMatch = LongValuesSource.fromIntField(countFieldName);
            Collection<Query> queries = new ArrayList<>();

            String fieldVals = Preconditions.checkNotNull(localParams.get(SETVAL_PARAM_NAME));
            for (String v : fieldVals.split(",")) {
                queries.add(new TermQuery(new Term(fieldName, v)));
            }
            if (wildcardToken != null && !wildcardToken.equals("")) {
                queries.add(new TermQuery(new Term(fieldName, wildcardToken)));
            }
            if (allowMissingValues) {
                // To construct this query we need to do a little trick tho construct a test for an empty field as follows:
                // (*:* AND -fieldName:*) ==> parses as: (+*:* -fieldName:*)
                // It is a feature of Lucene that pure negative queries are not allowed (although Solr allows them as a top level construct)
                // therefore we need to AND with *:*
                // We can then pass this BooleanQuery to the CoveringQuery as one of its allowed matches.
                BooleanQuery.Builder builder = new BooleanQuery.Builder();
                builder.add(new BooleanClause(new MatchAllDocsQuery(), BooleanClause.Occur.SHOULD));
                builder.add(new BooleanClause(new WildcardQuery(new Term(fieldName, "*")), BooleanClause.Occur.MUST_NOT));

                queries.add(builder.build());
            }
            return new CoveringQuery(queries, minimumNumberMatch);
        }
    };
}
 

public void testNoMatchFirstWordBug() throws Throwable {
  FuzzyLikeThisQuery flt = new FuzzyLikeThisQuery(10, analyzer);
  flt.addTerms("fernando smith", "name", 2, 1);
  Query q = flt.rewrite(searcher.getIndexReader());
  HashSet<Term> queryTerms = new HashSet<>();
  q.visit(QueryVisitor.termCollector(queryTerms));
  assertTrue("Should have variant smith", queryTerms.contains(new Term("name", "smith")));
  TopDocs topDocs = searcher.search(flt, 1);
  ScoreDoc[] sd = topDocs.scoreDocs;
  assertTrue("score docs must match 1 doc", (sd != null) && (sd.length > 0));
  Document doc = searcher.doc(sd[0].doc);
  assertEquals("Should match most similar when using 2 words", "2", doc.get("id"));
}
 

public void testRewriteMultiPhraseWithAny() throws Exception {
  TermAutomatonQuery q = new TermAutomatonQuery("field");
  int initState = q.createState();
  int s1 = q.createState();
  int s2 = q.createState();
  int s3 = q.createState();
  q.addTransition(initState, s1, "foo");
  q.addTransition(initState, s1, "bar");
  q.addAnyTransition(s1, s2);
  q.addTransition(s2, s3, "baz");
  q.setAccept(s3, true);
  q.finish();
  
  Directory dir = newDirectory();
  RandomIndexWriter w = new RandomIndexWriter(random(), dir);
  Document doc = new Document();
  doc.add(newTextField("field", "x y z", Field.Store.NO));
  w.addDocument(doc);

  IndexReader r = w.getReader();
  Query rewrite = q.rewrite(r);
  assertTrue(rewrite instanceof MultiPhraseQuery);
  Term[][] terms = ((MultiPhraseQuery) rewrite).getTermArrays();
  assertEquals(2, terms.length);
  assertEquals(2, terms[0].length);
  assertEquals(new Term("field", "foo"), terms[0][0]);
  assertEquals(new Term("field", "bar"), terms[0][1]);
  assertEquals(1, terms[1].length);
  assertEquals(new Term("field", "baz"), terms[1][0]);

  int[] positions = ((MultiPhraseQuery) rewrite).getPositions();
  assertEquals(2, positions.length);
  assertEquals(0, positions[0]);
  assertEquals(2, positions[1]);
  
  IOUtils.close(w, r, dir);
}
 

@Test(expected = IllegalStateException.class)
public void testIndexSearcherNullness() throws IOException {
  String text = "This is a test. Just a test highlighting without a searcher. Feel free to ignore.";
  Query query = new TermQuery(new Term("body", "highlighting"));

  try (Directory directory = newDirectory();
       RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory);
       IndexReader indexReader = indexWriter.getReader()) {
    IndexSearcher searcher = newSearcher(indexReader);
    UnifiedHighlighter highlighter = new UnifiedHighlighter(searcher, indexAnalyzer);
    highlighter.highlightWithoutSearcher("body", query, text, 1);//should throw
  }
}
 

/**
 * Builds a new WildcardQuery instance
 * @param t wildcard term
 * @return new WildcardQuery instance
 */
protected Query newWildcardQuery(Term t) {
  WildcardQuery query = new WildcardQuery(t);
  SchemaField sf = schema.getField(t.field());
  query.setRewriteMethod(sf.getType().getRewriteMethod(parser, sf));
  return query;
}
 

@Test @Slow
public void testDupSuggestFieldValues() throws Exception {
  Analyzer analyzer = new MockAnalyzer(random());
  RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwcWithSuggestField(analyzer, "suggest_field"));
  final int num = Math.min(1000, atLeast(100));
  int[] weights = new int[num];
  for(int i = 0; i < num; i++) {
    Document document = new Document();
    weights[i] = random().nextInt(Integer.MAX_VALUE);
    document.add(new SuggestField("suggest_field", "abc", weights[i]));
    iw.addDocument(document);

    if (usually()) {
      iw.commit();
    }
  }

  DirectoryReader reader = iw.getReader();
  Entry[] expectedEntries = new Entry[num];
  Arrays.sort(weights);
  for (int i = 1; i <= num; i++) {
    expectedEntries[i - 1] = new Entry("abc", weights[num - i]);
  }

  SuggestIndexSearcher suggestIndexSearcher = new SuggestIndexSearcher(reader);
  PrefixCompletionQuery query = new PrefixCompletionQuery(analyzer, new Term("suggest_field", "abc"));
  TopSuggestDocs lookupDocs = suggestIndexSearcher.suggest(query, num, false);
  assertSuggestions(lookupDocs, expectedEntries);

  reader.close();
  iw.close();
}
 

/**
 * Build a map of terms to termcontexts, for use in constructing SpanWeights
 * @lucene.internal
 */
public static Map<Term, TermContext> getTermContexts(Collection<CustomSpanWeight> weights) {
  Map<Term, TermContext> terms = new TreeMap<>();
  for (CustomSpanWeight w : weights) {
    w.extractTermContexts(terms);
  }
  return terms;
}
 

private static Acl createAndIndexSomeAclData()
{
    try {

        AclChangeSet aclChangeSet = getAclChangeSet(1);

        Acl acl = getAcl(aclChangeSet);
        Acl acl2 = getAcl(aclChangeSet);

        AclReaders aclReaders = getAclReaders(aclChangeSet, acl, singletonList("joel"), singletonList("phil"), null);
        AclReaders aclReaders2 = getAclReaders(aclChangeSet, acl2, singletonList("jim"), singletonList("phil"), null);

        indexAclChangeSet(aclChangeSet, asList(acl, acl2), asList(aclReaders, aclReaders2));

        BooleanQuery.Builder builder = new BooleanQuery.Builder();
        builder.add(new BooleanClause(new TermQuery(new Term(QueryConstants.FIELD_SOLR4_ID, "TRACKER!STATE!ACLTX")), BooleanClause.Occur.MUST));
        builder.add(new BooleanClause(LegacyNumericRangeQuery.newLongRange(QueryConstants.FIELD_S_ACLTXID, aclChangeSet.getId(), aclChangeSet.getId() + 1, true, false), BooleanClause.Occur.MUST));
        BooleanQuery waitForQuery = builder.build();
        waitForDocCountAllCores(waitForQuery, 1, MAX_WAIT_TIME);

        return acl;
    }
    catch (Exception exception)
    {
        throw new RuntimeException(exception);
    }
}
 

public void testNotReanalyzed() throws Exception {
  if (fieldType == UHTestHelper.reanalysisType) {
    return; // we're testing the *other* cases
  }

  RandomIndexWriter iw = new RandomIndexWriter(random(), dir, indexAnalyzer);

  Field body = new Field("body", "", fieldType);
  Document doc = new Document();
  doc.add(body);

  body.setStringValue("This is a test. Just a test highlighting from postings. Feel free to ignore.");
  iw.addDocument(doc);

  IndexReader ir = iw.getReader();
  iw.close();

  IndexSearcher searcher = newSearcher(ir);
  UnifiedHighlighter highlighter = randomUnifiedHighlighter(searcher, new Analyzer() {
    @Override
    protected TokenStreamComponents createComponents(String fieldName) {
      throw new AssertionError("shouldn't be called");
    }
  });
  Query query = new TermQuery(new Term("body", "highlighting"));
  TopDocs topDocs = searcher.search(query, 10, Sort.INDEXORDER);
  assertEquals(1, topDocs.totalHits.value);
  String snippets[] = highlighter.highlight("body", query, topDocs);
  assertEquals(1, snippets.length);
  assertEquals("Just a test <b>highlighting</b> from postings. ", snippets[0]);

  ir.close();
}
 

@Override
public void extractTermContexts(Map<Term, TermContext> contexts) {
  for (MtasSpanSequenceQueryWeight w : subWeights) {
    w.spanWeight.extractTermContexts(contexts);
  }
  if (ignoreWeight != null) {
    ignoreWeight.extractTermContexts(contexts);
  }
}
 

public void testSortByRelevance() throws IOException {

    Shard shard = new Shard();
    indexRandomDocs(shard.writer);

    String[] query = new String[]{ "foo", "bar", "baz" };
    Query topLevel = new TermQuery(new Term("text", query[random().nextInt(query.length)]));

    IndexSearcher searcher = shard.getIndexSearcher();
    GroupingSearch grouper = new GroupingSearch(getGroupSelector());
    grouper.setGroupDocsLimit(10);
    TopGroups<T> topGroups = grouper.search(searcher, topLevel, 0, 5);
    TopDocs topDoc = searcher.search(topLevel, 1);
    for (int i = 0; i < topGroups.groups.length; i++) {
      // Each group should have a result set equal to that returned by the top-level query,
      // filtered by the group value.
      Query filtered = new BooleanQuery.Builder()
          .add(topLevel, BooleanClause.Occur.MUST)
          .add(filterQuery(topGroups.groups[i].groupValue), BooleanClause.Occur.FILTER)
          .build();
      TopDocs td = searcher.search(filtered, 10);
      assertScoreDocsEquals(topGroups.groups[i].scoreDocs, td.scoreDocs);
      if (i == 0) {
        assertEquals(td.scoreDocs[0].doc, topDoc.scoreDocs[0].doc);
        assertEquals(td.scoreDocs[0].score, topDoc.scoreDocs[0].score, 0);
      }
    }

    shard.close();
  }
 

/**
 * 更新博客索引
 *
 * @param user
 * @throws Exception
 */
public void updateIndex(UUser user) throws Exception {
  IndexWriter writer = getWriter();
  Document doc = new Document();
  doc.add(new StringField("userid", String.valueOf(user.getId()), Field.Store.YES));
  doc.add(new TextField("username", user.getUsername(), Field.Store.YES));
  doc.add(new TextField("description", user.getDescription(), Field.Store.YES));

  writer.updateDocument(new Term("userid", String.valueOf(user.getId())), doc);
  writer.close();
}
 

@Override
protected Query newTermQuery(Term term, TermContext context) {
    if (fieldType == null) {
        return super.newTermQuery(term, context);
    }
    final Query query = fieldType.queryStringTermQuery(term);
    if (query == null) {
        return super.newTermQuery(term, context);
    } else {
        return query;
    }
}
 

public void testDistanceAsEditsSearching() throws Exception {
  Directory index = newDirectory();
  RandomIndexWriter w = new RandomIndexWriter(random(), index);
  addDoc("foobar", w);
  addDoc("test", w);
  addDoc("working", w);
  IndexReader reader = w.getReader();
  IndexSearcher searcher = newSearcher(reader);
  w.close();
  
  FuzzyQuery q = new FuzzyQuery(new Term("field", "fouba"), 2);
  ScoreDoc[] hits = searcher.search(q, 10).scoreDocs;
  assertEquals(1, hits.length);
  assertEquals("foobar", searcher.doc(hits[0].doc).get("field"));
  
  q = new FuzzyQuery(new Term("field", "foubara"), 2);
  hits = searcher.search(q, 10).scoreDocs;
  assertEquals(1, hits.length);
  assertEquals("foobar", searcher.doc(hits[0].doc).get("field"));
  
  expectThrows(IllegalArgumentException.class, () -> {
    new FuzzyQuery(new Term("field", "t"), 3);
  });

  reader.close();
  index.close();
}
 

public void testPositionSensitiveWithWildcardDoesNotHighlight() throws Exception {
  RandomIndexWriter iw = new RandomIndexWriter(random(), dir, indexAnalyzer);
  Document doc = new Document();
  doc.add(new Field("body", "iterate insect ipswitch illinois indirect", fieldType));
  doc.add(newTextField("id", "id", Field.Store.YES));

  iw.addDocument(doc);
  IndexReader ir = iw.getReader();
  iw.close();

  IndexSearcher searcher = newSearcher(ir);
  UnifiedHighlighter highlighter = randomUnifiedHighlighter(searcher, indexAnalyzer);
  int docID = searcher.search(new TermQuery(new Term("id", "id")), 1).scoreDocs[0].doc;

  PhraseQuery pq = new PhraseQuery.Builder()
      .add(new Term("body", "consent"))
      .add(new Term("body", "order"))
      .build();

  BooleanQuery query = new BooleanQuery.Builder()
      .add(new WildcardQuery(new Term("body", "enforc*")), BooleanClause.Occur.MUST)
      .add(pq, BooleanClause.Occur.MUST)
      .build();

  int[] docIds = new int[]{docID};

  String snippets[] = highlighter.highlightFields(new String[]{"body"}, query, docIds, new int[]{2}).get("body");
  assertEquals(1, snippets.length);
  assertEquals("iterate insect ipswitch illinois indirect", snippets[0]);
  ir.close();
}
 

public void testFQ5() throws Exception {
  TermQuery query = new TermQuery(new Term(FIELD, "xx"));
  Query filtered = new BooleanQuery.Builder()
      .add(new BoostQuery(query, 0), Occur.MUST)
      .add(matchTheseItems(new int[] {1,3}), Occur.FILTER)
      .build();
  bqtest(filtered, new int[] {3});
}
 

public BlendedTermQuery(Term[] terms, float[] boosts) {
    if (terms == null || terms.length == 0) {
        throw new IllegalArgumentException("terms must not be null or empty");
    }
    if (boosts != null && boosts.length != terms.length) {
        throw new IllegalArgumentException("boosts must have the same size as terms");
    }
    this.terms = terms;
    this.boosts = boosts;
}
 

@Override
public Boolean candidateExtraction(SolrCore core, String jatePropertyFile)
        throws IOException, JATEException {
    SolrIndexSearcher indexSearcher = core.getSearcher().get();
    IndexWriter writerIn = null;
    try {
    	writerIn = core.getSolrCoreState().getIndexWriter(core).get();
     Map<String,List<CopyField>> copyFields = core.getLatestSchema().getCopyFieldsMap();
	
     for (int i=0; i<indexSearcher.maxDoc(); i++) {
         Document doc = indexSearcher.doc(i);
	
         SolrUtil.copyFields(copyFields, DEFAULT_BOOST_VALUE, doc);
	
         writerIn.updateDocument(new Term("id",doc.get("id")), doc);
     }
     writerIn.commit();
	
     return true;
    } finally {
    	indexSearcher.close();
    	if (writerIn != null) {
    		writerIn.close();
    	}
    	
    }
}
 

public void testCustomSpanQueryHighlighting() throws Exception {
  RandomIndexWriter iw = new RandomIndexWriter(random(), dir, indexAnalyzer);
  Document doc = new Document();
  doc.add(new Field("body", "alpha bravo charlie delta echo foxtrot golf hotel india juliet", fieldType));
  doc.add(newTextField("id", "id", Field.Store.YES));

  iw.addDocument(doc);
  IndexReader ir = iw.getReader();
  iw.close();

  IndexSearcher searcher = newSearcher(ir);
  UnifiedHighlighter highlighter = new UnifiedHighlighter(searcher, indexAnalyzer);

  int docId = searcher.search(new TermQuery(new Term("id", "id")), 1).scoreDocs[0].doc;

  WildcardQuery wildcardQuery = new WildcardQuery(new Term("body", "foxtr*"));
  SpanMultiTermQueryWrapper<WildcardQuery> wildcardQueryWrapper = new SpanMultiTermQueryWrapper<>(wildcardQuery);

  SpanQuery wrappedQuery = new MyWrapperSpanQuery(wildcardQueryWrapper);

  BooleanQuery query = new BooleanQuery.Builder()
      .add(wrappedQuery, BooleanClause.Occur.SHOULD)
      .build();

  int[] docIds = new int[]{docId};

  String snippets[] = highlighter.highlightFields(new String[]{"body"}, query, docIds, new int[]{2}).get("body");
  assertEquals(1, snippets.length);
  assertEquals("alpha bravo charlie delta echo <b>foxtrot</b> golf hotel india juliet", snippets[0]);
  ir.close();
}
 

protected FieldFeatureExtractorFactory getIDF(String featureName, String fieldName, IndexReaderContext context, Term... terms){
  FieldFeatureExtractorFactory factory = new FieldFeatureIDFExtractorFactory(featureName, fieldName);
  if(context != null){
    factory.init(context, terms);
  }
  return factory;
}