/**
* This is best effort only: the PhraseQuery may contain multiple terms at the same position
* (think synonyms) or gaps (think stopwords) and it's in this case impossible to translate it
* into a correct ElasticsearchQuery.
*/
private static JsonObject convertPhraseQuery(PhraseQuery query) {
Term[] terms = query.getTerms();
if (terms.length == 0) {
throw LOG.cannotQueryOnEmptyPhraseQuery();
}
String field = terms[0].field(); // phrase queries are only supporting one field
StringBuilder phrase = new StringBuilder();
for (Term term : terms) {
phrase.append(" ").append(term.text());
}
JsonObject phraseQuery =
JsonBuilder.object()
.add(
"match_phrase",
JsonBuilder.object()
.add(
field,
JsonBuilder.object()
.addProperty("query", phrase.toString().trim())
.addProperty("slop", query.getSlop())
.addProperty("boost", query.getBoost())))
.build();
return wrapQueryForNestedIfRequired(field, phraseQuery);
}
public void testPositionIncrement() throws Exception {
boolean dflt = StopFilter.getEnablePositionIncrementsDefault();
StopFilter.setEnablePositionIncrementsDefault(true);
try {
QueryParserWrapper qp =
new QueryParserWrapper("a", new StopAnalyzer(new String[] {"the", "in", "are", "this"}));
qp.setEnablePositionIncrements(true);
String qtxt = "\"the words in poisitions pos02578 are stopped in this phrasequery\"";
// 0 2 5 7 8
int expectedPositions[] = {1, 3, 4, 6, 9};
PhraseQuery pq = (PhraseQuery) qp.parse(qtxt);
// System.out.println("Query text: "+qtxt);
// System.out.println("Result: "+pq);
Term t[] = pq.getTerms();
int pos[] = pq.getPositions();
for (int i = 0; i < t.length; i++) {
// System.out.println(i+". "+t[i]+" pos: "+pos[i]);
assertEquals(
"term " + i + " = " + t[i] + " has wrong term-position!", expectedPositions[i], pos[i]);
}
} finally {
StopFilter.setEnablePositionIncrementsDefault(dflt);
}
}
public Query createPhrasePrefixQuery(
String field, String queryText, int phraseSlop, int maxExpansions) {
final Query query =
createFieldQuery(getAnalyzer(), Occur.MUST, field, queryText, true, phraseSlop);
final MultiPhrasePrefixQuery prefixQuery = new MultiPhrasePrefixQuery();
prefixQuery.setMaxExpansions(maxExpansions);
prefixQuery.setSlop(phraseSlop);
if (query instanceof PhraseQuery) {
PhraseQuery pq = (PhraseQuery) query;
Term[] terms = pq.getTerms();
int[] positions = pq.getPositions();
for (int i = 0; i < terms.length; i++) {
prefixQuery.add(new Term[] {terms[i]}, positions[i]);
}
return prefixQuery;
} else if (query instanceof MultiPhraseQuery) {
MultiPhraseQuery pq = (MultiPhraseQuery) query;
Term[][] terms = pq.getTermArrays();
int[] positions = pq.getPositions();
for (int i = 0; i < terms.length; i++) {
prefixQuery.add(terms[i], positions[i]);
}
return prefixQuery;
} else if (query instanceof TermQuery) {
prefixQuery.add(((TermQuery) query).getTerm());
return prefixQuery;
}
return query;
}
/**
* Construct a span phrase query. TODO While we have code set up to check for wildcard characters
* in the query, they have already been stripped so this will never happen. This is one thing that
* would need to be addressed.
*
* @param scope
* @param q
* @return
*/
private SpanQuery buildPhraseQuery(String scope, Query q) {
PhraseQuery pq = (PhraseQuery) q;
Term[] terms = pq.getTerms();
ArrayList<SpanQuery> spans = new ArrayList<SpanQuery>();
spans.add(
new SpanTermQuery(new Term(scope, getTag(scope, terms[0].field(), TAG_TYPE.BEG_TAG))));
spans.add(
new SpanTermQuery(new Term(scope, getTag(scope, terms[0].field(), TAG_TYPE.END_TAG))));
ArrayList<SpanQuery> phraseSpan = new ArrayList<SpanQuery>();
for (int i = 0; i < terms.length; i++) {
String term = terms[i].text();
if (term.endsWith("*")) {
WildcardQuery wildcard = new WildcardQuery(new Term(scope, term));
phraseSpan.add(new SpanMultiTermQueryWrapper<WildcardQuery>(wildcard));
} else if (term.contains(singleCs) || term.contains(multiCs)) {
WildcardQuery wildcard = new WildcardQuery(new Term(scope, term));
phraseSpan.add(new SpanMultiTermQueryWrapper<WildcardQuery>(wildcard));
} else {
phraseSpan.add(new SpanTermQuery(new Term(scope, term)));
}
}
spans.add(
new SpanNearQuery(
phraseSpan.toArray(new SpanQuery[phraseSpan.size()]), phraseSpan.size(), true));
return new SpanBetweenQuery(spans.toArray(new SpanQuery[spans.size()]));
}
protected PhraseQuery toPhraseQuery(List<BytesRef> bytesRefs, String field) {
PhraseQuery phraseQuery = new PhraseQuery();
for (BytesRef bytesRef : bytesRefs) {
phraseQuery.add(new Term(field, bytesRef));
}
return phraseQuery;
}
public void testSpanNearQuery() throws Exception {
SpanQuery[] quick_brown_dog = new SpanQuery[] {quick, brown, dog};
SpanNearQuery snq = new SpanNearQuery(quick_brown_dog, 0, true); // #1
assertNoMatches(snq);
dumpSpans(snq);
snq = new SpanNearQuery(quick_brown_dog, 4, true); // #2
assertNoMatches(snq);
dumpSpans(snq);
snq = new SpanNearQuery(quick_brown_dog, 5, true); // #3
assertOnlyBrownFox(snq);
dumpSpans(snq);
// interesting - even a sloppy phrase query would require
// more slop to match
snq = new SpanNearQuery(new SpanQuery[] {lazy, fox}, 3, false); // #4
assertOnlyBrownFox(snq);
dumpSpans(snq);
PhraseQuery pq = new PhraseQuery(); // #5
pq.add(new Term("f", "lazy")); // #5
pq.add(new Term("f", "fox")); // #5
pq.setSlop(4); // #5
assertNoMatches(pq);
pq.setSlop(5); // #6
assertOnlyBrownFox(pq); // #6
}
protected void smokeTestSearcher(IndexSearcher s) throws Exception {
runQuery(s, new TermQuery(new Term("body", "united")));
runQuery(s, new TermQuery(new Term("titleTokenized", "states")));
PhraseQuery pq = new PhraseQuery();
pq.add(new Term("body", "united"));
pq.add(new Term("body", "states"));
runQuery(s, pq);
}
private static PhraseQuery makePhraseQuery(String terms) {
PhraseQuery query = new PhraseQuery();
String[] t = terms.split(" +");
for (int i = 0; i < t.length; i++) {
query.add(new Term("f", t[i]));
}
return query;
}
protected Query pq(float boost, int slop, String field, String... texts) {
PhraseQuery query = new PhraseQuery();
for (String text : texts) {
query.add(new Term(field, text));
}
query.setBoost(boost);
query.setSlop(slop);
return query;
}
public void testCJKPhrase() throws Exception {
// individual CJK chars as terms
StandardAnalyzer analyzer = new StandardAnalyzer(TEST_VERSION_CURRENT);
PhraseQuery expected = new PhraseQuery();
expected.add(new Term("field", "ä¸"));
expected.add(new Term("field", "国"));
assertEquals(expected, getQuery("\"ä¸å›½\"", analyzer));
}
protected Query eq(String field, String[] terms, boolean ignoreCase) {
if (terms.length > 1) {
PhraseQuery pq = new PhraseQuery();
for (String s : terms) {
pq.add(new Term(field, s));
}
return pq;
}
return new TermQuery(new Term(field, terms[0]));
}
public void testAutoGeneratePhraseQueriesOn() throws Exception {
// individual CJK chars as terms
StandardAnalyzer analyzer = new StandardAnalyzer(TEST_VERSION_CURRENT);
PhraseQuery expected = new PhraseQuery();
expected.add(new Term("field", "ä¸"));
expected.add(new Term("field", "国"));
QueryParser parser = new QueryParser(TEST_VERSION_CURRENT, "field", analyzer);
parser.setAutoGeneratePhraseQueries(true);
assertEquals(expected, parser.parse("ä¸å›½"));
}
@Override
public Query construct(IndexEnvironment env, Map<String, String[]> querySource)
throws ParseException {
if ("1".equals(StringTools.arrayToString(querySource.get("queryversion"), ""))) {
// preserving old stuff:
// 1. all lucene special chars to be quoted
// 2. if "wholewords" is "on" or "true" -> don't add *_*, otherwise add *_*
BooleanQuery result = new BooleanQuery();
String wholeWords = StringTools.arrayToString(querySource.get("wholewords"), "");
boolean useWildcards = !(null != wholeWords && StringTools.stringToBoolean(wholeWords));
for (Map.Entry<String, String[]> queryItem : querySource.entrySet()) {
String field = queryItem.getKey();
if (env.fields.containsKey(field) && queryItem.getValue().length > 0) {
for (String value : queryItem.getValue()) {
if (null != value) {
value = value.trim().toLowerCase();
if (0 != value.length()) {
if ("keywords".equals(field) && ACCESSION_REGEX.test(value)) {
result.add(new TermQuery(new Term("accession", value)), BooleanClause.Occur.MUST);
} else if ("keywords".equals(field)
&& '"' == value.charAt(0)
&& '"' == value.charAt(value.length() - 1)) {
value = value.substring(1, value.length() - 1);
PhraseQuery q = new PhraseQuery();
String[] tokens = value.split("\\s+");
for (String token : tokens) {
q.add(new Term(field, token));
}
result.add(q, BooleanClause.Occur.MUST);
} else {
String[] tokens = value.split("\\s+");
for (String token : tokens) {
// we use wildcards for keywords depending on "wholewords" switch,
// *ALWAYS* for other fields, *NEVER* for user id and accession or boolean
// fields
Query q =
!"boolean".equals(env.fields.get(field).type)
&& !" userid accession ".contains(" " + field + " ")
&& (useWildcards || (!" keywords ".contains(" " + field + " ")))
? new WildcardQuery(new Term(field, "*" + token + "*"))
: new TermQuery(new Term(field, token));
result.add(q, BooleanClause.Occur.MUST);
}
}
}
}
}
}
}
return result;
} else {
return super.construct(env, querySource);
}
}
@Test
public void testLotsOfPhrases() throws IOException {
Directory dir = newDirectory();
IndexWriter writer =
new IndexWriter(
dir,
newIndexWriterConfig(
TEST_VERSION_CURRENT,
new MockAnalyzer(
random(), MockTokenizer.SIMPLE, true, MockTokenFilter.ENGLISH_STOPSET)));
FieldType type = new FieldType(TextField.TYPE_STORED);
type.setStoreTermVectorOffsets(true);
type.setStoreTermVectorPositions(true);
type.setStoreTermVectors(true);
type.freeze();
String[] terms = {"org", "apache", "lucene"};
int iters = atLeast(1000);
StringBuilder builder = new StringBuilder();
for (int i = 0; i < iters; i++) {
builder.append(terms[random().nextInt(terms.length)]).append(" ");
if (random().nextInt(6) == 3) {
builder.append("elasticsearch").append(" ");
}
}
Document doc = new Document();
Field field = new Field("field", builder.toString(), type);
doc.add(field);
writer.addDocument(doc);
PhraseQuery query = new PhraseQuery();
query.add(new Term("field", "org"));
query.add(new Term("field", "apache"));
query.add(new Term("field", "lucene"));
XFastVectorHighlighter highlighter = new XFastVectorHighlighter();
IndexReader reader = DirectoryReader.open(writer, true);
IndexSearcher searcher = newSearcher(reader);
TopDocs hits = searcher.search(query, 10);
assertEquals(1, hits.totalHits);
XFieldQuery fieldQuery = highlighter.getFieldQuery(query, reader);
String[] bestFragments =
highlighter.getBestFragments(fieldQuery, reader, hits.scoreDocs[0].doc, "field", 1000, 1);
for (int i = 0; i < bestFragments.length; i++) {
String result = bestFragments[i].replaceAll("<b>org apache lucene</b>", "FOOBAR");
assertFalse(result.contains("org apache lucene"));
}
reader.close();
writer.close();
dir.close();
}
BooleanClause partialMatch(SearchTerm s, int slop) {
String[] phrase = getPhrase(s.getValue().toLowerCase().trim());
PhraseQuery query = new PhraseQuery();
BooleanClause partialMatchClause = null;
query.setSlop(slop);
for (int i = 0; i < phrase.length; i++) {
query.add(new Term(s.getFieldName(), phrase[i].toLowerCase().trim()));
}
if (s.getOperator().equalsIgnoreCase("=")) {
partialMatchClause = new BooleanClause(query, BooleanClause.Occur.MUST);
} else if (s.getOperator().equalsIgnoreCase("-")) {
partialMatchClause = new BooleanClause(query, BooleanClause.Occur.MUST_NOT);
}
return partialMatchClause;
}
private float checkPhraseQuery(Document doc, PhraseQuery query, int slop, int expectedNumResults)
throws Exception {
query.setSlop(slop);
Directory ramDir = newDirectory();
RandomIndexWriter writer =
new RandomIndexWriter(random, ramDir, new MockAnalyzer(MockTokenizer.WHITESPACE, false));
writer.addDocument(doc);
IndexReader reader = writer.getReader();
IndexSearcher searcher = newSearcher(reader);
TopDocs td = searcher.search(query, null, 10);
// System.out.println("slop: "+slop+" query: "+query+" doc: "+doc+" Expecting number of hits:
// "+expectedNumResults+" maxScore="+td.getMaxScore());
assertEquals(
"slop: " + slop + " query: " + query + " doc: " + doc + " Wrong number of hits",
expectedNumResults,
td.totalHits);
// QueryUtils.check(query,searcher);
writer.close();
searcher.close();
reader.close();
ramDir.close();
return td.getMaxScore();
}
public void testToQueryPhraseQueryBoostAndSlop() throws IOException {
assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
QueryStringQueryBuilder queryStringQueryBuilder =
new QueryStringQueryBuilder("\"test phrase\"~2").field(STRING_FIELD_NAME, 5f);
Query query = queryStringQueryBuilder.toQuery(createShardContext());
assertThat(query, instanceOf(DisjunctionMaxQuery.class));
DisjunctionMaxQuery disjunctionMaxQuery = (DisjunctionMaxQuery) query;
assertThat(disjunctionMaxQuery.getDisjuncts().size(), equalTo(1));
assertThat(disjunctionMaxQuery.getDisjuncts().get(0), instanceOf(BoostQuery.class));
BoostQuery boostQuery = (BoostQuery) disjunctionMaxQuery.getDisjuncts().get(0);
assertThat(boostQuery.getBoost(), equalTo(5f));
assertThat(boostQuery.getQuery(), instanceOf(PhraseQuery.class));
PhraseQuery phraseQuery = (PhraseQuery) boostQuery.getQuery();
assertThat(phraseQuery.getSlop(), Matchers.equalTo(2));
assertThat(phraseQuery.getTerms().length, equalTo(2));
}
public void testToQueryPhraseQuery() throws IOException {
assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
Query query =
queryStringQuery("\"term1 term2\"")
.defaultField(STRING_FIELD_NAME)
.phraseSlop(3)
.toQuery(createShardContext());
assertThat(query, instanceOf(DisjunctionMaxQuery.class));
DisjunctionMaxQuery disjunctionMaxQuery = (DisjunctionMaxQuery) query;
assertThat(disjunctionMaxQuery.getDisjuncts().size(), equalTo(1));
assertThat(disjunctionMaxQuery.getDisjuncts().get(0), instanceOf(PhraseQuery.class));
PhraseQuery phraseQuery = (PhraseQuery) disjunctionMaxQuery.getDisjuncts().get(0);
assertThat(phraseQuery.getTerms().length, equalTo(2));
assertThat(phraseQuery.getTerms()[0], equalTo(new Term(STRING_FIELD_NAME, "term1")));
assertThat(phraseQuery.getTerms()[1], equalTo(new Term(STRING_FIELD_NAME, "term2")));
assertThat(phraseQuery.getSlop(), equalTo(3));
}
protected Taxon[] findTaxon(String fieldName1, String fieldValue) throws IOException {
Taxon[] terms = new TaxonImpl[0];
if (StringUtils.isNotBlank(fieldValue) && indexSearcher != null) {
PhraseQuery query = new PhraseQuery();
query.add(new Term(fieldName1, fieldValue));
int maxHits = 3;
TopDocs docs = indexSearcher.search(query, maxHits);
if (docs.totalHits > 0) {
terms = new TaxonImpl[docs.totalHits];
for (int i = 0; i < docs.totalHits && i < maxHits; i++) {
ScoreDoc scoreDoc = docs.scoreDocs[i];
Document foundDoc = indexSearcher.doc(scoreDoc.doc);
Taxon term = new TaxonImpl();
Fieldable idField = foundDoc.getFieldable(FIELD_ID);
if (idField != null) {
term.setExternalId(idField.stringValue());
}
Fieldable rankPathField = foundDoc.getFieldable(FIELD_RANK_PATH);
if (rankPathField != null) {
term.setPath(rankPathField.stringValue());
}
Fieldable rankPathIdsField = foundDoc.getFieldable(FIELD_RANK_PATH_IDS);
if (rankPathIdsField != null) {
term.setPathIds(rankPathIdsField.stringValue());
}
Fieldable rankPathNamesField = foundDoc.getFieldable(FIELD_RANK_PATH_NAMES);
if (rankPathNamesField != null) {
term.setPathNames(rankPathNamesField.stringValue());
}
Fieldable commonNamesFields = foundDoc.getFieldable(FIELD_COMMON_NAMES);
if (commonNamesFields != null) {
term.setCommonNames(commonNamesFields.stringValue());
}
Fieldable fieldName = foundDoc.getFieldable(FIELD_RECOMMENDED_NAME);
if (fieldName != null) {
term.setName(fieldName.stringValue());
}
terms[i] = term;
}
}
}
return terms;
}
@Test
public void testPhraseQuery() {
Map<String, ColumnMapper> map = new HashMap<>();
map.put("name", new ColumnMapperBoolean());
Schema mappers = new Schema(map, null, EnglishAnalyzer.class.getName());
List<String> values = new ArrayList<>();
values.add("hola");
values.add("adios");
PhraseCondition phraseCondition = new PhraseCondition(0.5f, "name", values, 2);
Query query = phraseCondition.query(mappers);
Assert.assertNotNull(query);
Assert.assertEquals(org.apache.lucene.search.PhraseQuery.class, query.getClass());
org.apache.lucene.search.PhraseQuery luceneQuery = (org.apache.lucene.search.PhraseQuery) query;
Assert.assertEquals(values.size(), luceneQuery.getTerms().length);
Assert.assertEquals(2, luceneQuery.getSlop());
Assert.assertEquals(0.5f, query.getBoost(), 0);
}
public void testWithPendingDeletes3() throws IOException {
// main directory
Directory dir = newDirectory();
// auxiliary directory
Directory aux = newDirectory();
setUpDirs(dir, aux);
IndexWriter writer =
newWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setOpenMode(OpenMode.APPEND));
// Adds 10 docs, then replaces them with another 10
// docs, so 10 pending deletes:
for (int i = 0; i < 20; i++) {
Document doc = new Document();
doc.add(newStringField("id", "" + (i % 10), Field.Store.NO));
doc.add(newTextField("content", "bbb " + i, Field.Store.NO));
writer.updateDocument(new Term("id", "" + (i % 10)), doc);
}
// Deletes one of the 10 added docs, leaving 9:
PhraseQuery q = new PhraseQuery();
q.add(new Term("content", "bbb"));
q.add(new Term("content", "14"));
writer.deleteDocuments(q);
writer.addIndexes(aux);
writer.forceMerge(1);
writer.commit();
verifyNumDocs(dir, 1039);
verifyTermDocs(dir, new Term("content", "aaa"), 1030);
verifyTermDocs(dir, new Term("content", "bbb"), 9);
writer.close();
dir.close();
aux.close();
}
@Override
public void execute(String indexDir) {
ConsoleUtilities.printHeader();
try {
Directory indexDirectory = FSDirectory.open(new File(indexDir));
IndexReader indexReader = DirectoryReader.open(indexDirectory);
IndexSearcher searcher = new IndexSearcher(indexReader);
System.out.println("[BooleanQueryOperation.execute]");
// TODO: Implement and execute BooleanQuery
PhraseQuery phraseQuery1 = new PhraseQuery();
phraseQuery1.add(new Term("description", "legendary"));
phraseQuery1.add(new Term("description", "sacred"));
phraseQuery1.add(new Term("description", "realm"));
// cursed land
PhraseQuery phraseQuery2 = new PhraseQuery();
phraseQuery2.add(new Term("description", "cursed"));
phraseQuery2.add(new Term("description", "land"));
BooleanQuery booleanQuery = new BooleanQuery();
booleanQuery.add(new BooleanClause(phraseQuery1, Occur.SHOULD));
booleanQuery.add(new BooleanClause(phraseQuery2, Occur.SHOULD));
int topHitNum = 30;
TopDocs topDocs = searcher.search(booleanQuery, topHitNum);
for (ScoreDoc scoreDoc : topDocs.scoreDocs) {
Document doc = searcher.doc(scoreDoc.doc);
String path = doc.get("path");
Game game = gameBuilder.build(new File(path));
System.out.println(ResultFormatter.format(game, scoreDoc.score));
}
// BooleanClause.Occur.SHOULD means that the clause is optional,
// whereas BooleanClause.Occur.Must means that the clause is required.
// However, if a boolean query only has optional clauses, at least one
// clause must match for a document to appear in the results.
// For better control over what documents match a BooleanQuery, there is
// also a minimumShouldMatch parameter which lets you tell Lucene that at
// least minimumShouldMatch BooleanClause.Occur.SHOULD clauses must match
// for a document to appear in the results.
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void testPositionIncrement() throws Exception {
AqpQueryParser qp = getParser();
qp.setAnalyzer(
new StopAnalyzer(
TEST_VERSION_CURRENT,
StopFilter.makeStopSet(TEST_VERSION_CURRENT, "the", "in", "are", "this")));
qp.setEnablePositionIncrements(true);
String qtxt = "\"the words in poisitions pos02578 are stopped in this phrasequery\"";
// 0 2 5 7 8
int expectedPositions[] = {1, 3, 4, 6, 9};
PhraseQuery pq = (PhraseQuery) qp.parse(qtxt, "a");
// System.out.println("Query text: "+qtxt);
// System.out.println("Result: "+pq);
Term t[] = pq.getTerms();
int pos[] = pq.getPositions();
for (int i = 0; i < t.length; i++) {
// System.out.println(i+". "+t[i]+" pos: "+pos[i]);
assertEquals(
"term " + i + " = " + t[i] + " has wrong term-position!", expectedPositions[i], pos[i]);
}
}
BooleanQuery orPhraseQuery(List<SearchTerm> orSearchTerms) {
BooleanQuery orTerms = new BooleanQuery();
orTerms.setMaxClauseCount(dvnMaxClauseCount);
for (Iterator it = orSearchTerms.iterator(); it.hasNext(); ) {
SearchTerm elem = (SearchTerm) it.next();
String[] phrase = getPhrase(elem.getValue().toLowerCase().trim());
if (phrase.length > 1) {
BooleanClause partialMatchClause = null;
PhraseQuery phraseQuery = new PhraseQuery();
phraseQuery.setSlop(3);
for (int i = 0; i < phrase.length; i++) {
phraseQuery.add(new Term(elem.getFieldName(), phrase[i].toLowerCase().trim()));
}
orTerms.add(phraseQuery, BooleanClause.Occur.SHOULD);
} else {
Term t = new Term(elem.getFieldName(), elem.getValue().toLowerCase().trim());
TermQuery orQuery = new TermQuery(t);
orTerms.add(orQuery, BooleanClause.Occur.SHOULD);
}
}
return orTerms;
}
BooleanQuery andSearchTermClause(List<SearchTerm> andSearchTerms) {
BooleanQuery andTerms = new BooleanQuery();
andTerms.setMaxClauseCount(dvnMaxClauseCount);
Query rQuery = null;
for (Iterator it = andSearchTerms.iterator(); it.hasNext(); ) {
SearchTerm elem = (SearchTerm) it.next();
if (elem.getOperator().equals("<")) {
Term end = new Term(elem.getFieldName(), elem.getValue().toLowerCase().trim());
Term begin = null;
rQuery = new RangeQuery(begin, end, true);
andTerms.add(rQuery, BooleanClause.Occur.MUST);
} else if (elem.getOperator().equals(">")) {
Term end = null;
Term begin = new Term(elem.getFieldName(), elem.getValue().toLowerCase().trim());
rQuery = new RangeQuery(begin, end, true);
andTerms.add(rQuery, BooleanClause.Occur.MUST);
} else if (elem.getFieldName().equalsIgnoreCase("any")) {
andTerms = buildAnyQuery(elem.getValue().toLowerCase().trim());
} else {
String[] phrase = getPhrase(elem.getValue().toLowerCase().trim());
if (phrase.length > 1) {
PhraseQuery phraseQuery = new PhraseQuery();
phraseQuery.setSlop(0);
andTerms.add(partialMatch(elem, 3));
} else {
Term t = new Term(elem.getFieldName(), elem.getValue().toLowerCase().trim());
TermQuery andQuery = new TermQuery(t);
if (elem.getOperator().equals("=")) {
andTerms.add(andQuery, BooleanClause.Occur.MUST);
} else if (elem.getOperator().equalsIgnoreCase("-")) {
andTerms.add(andQuery, BooleanClause.Occur.MUST_NOT);
}
}
}
}
return andTerms;
}
private Query createQuery(SearchEngineFilter filter) {
BooleanQuery fieldQuery = new BooleanQuery();
String key = filter.getKey();
String attachmentKey = key + IIndexerDAO.ATTACHMENT_FIELD_SUFFIX;
Object value = filter.getValue();
if (null != value) {
if (value instanceof String) {
SearchEngineFilter.TextSearchOption option = filter.getTextSearchOption();
if (null == option) {
option = SearchEngineFilter.TextSearchOption.AT_LEAST_ONE_WORD;
}
String stringValue = value.toString();
String[] values = stringValue.split("\\s+");
if (!option.equals(SearchEngineFilter.TextSearchOption.EXACT)) {
BooleanClause.Occur bc = BooleanClause.Occur.SHOULD;
if (option.equals(SearchEngineFilter.TextSearchOption.ALL_WORDS)) {
bc = BooleanClause.Occur.MUST;
} else if (option.equals(SearchEngineFilter.TextSearchOption.ANY_WORD)) {
bc = BooleanClause.Occur.MUST_NOT;
}
for (int i = 0; i < values.length; i++) {
TermQuery term = new TermQuery(new Term(key, values[i].toLowerCase()));
// NOTE: search lower case....
if (filter.isIncludeAttachments()) {
BooleanQuery compositeQuery = new BooleanQuery();
compositeQuery.add(term, BooleanClause.Occur.SHOULD);
TermQuery termAttachment =
new TermQuery(new Term(attachmentKey, values[i].toLowerCase()));
compositeQuery.add(termAttachment, BooleanClause.Occur.SHOULD);
fieldQuery.add(compositeQuery, bc);
} else {
fieldQuery.add(term, bc);
}
}
} else {
PhraseQuery phraseQuery = new PhraseQuery();
for (int i = 0; i < values.length; i++) {
// NOTE: search lower case....
phraseQuery.add(new Term(key, values[i].toLowerCase()));
}
if (filter.isIncludeAttachments()) {
fieldQuery.add(phraseQuery, BooleanClause.Occur.SHOULD);
PhraseQuery phraseQuery2 = new PhraseQuery();
for (int i = 0; i < values.length; i++) {
// NOTE: search lower case....
phraseQuery2.add(new Term(attachmentKey, values[i].toLowerCase()));
}
fieldQuery.add(phraseQuery2, BooleanClause.Occur.SHOULD);
} else {
return phraseQuery;
}
}
} else if (value instanceof Date) {
String toString =
DateTools.timeToString(((Date) value).getTime(), DateTools.Resolution.MINUTE);
TermQuery term = new TermQuery(new Term(filter.getKey(), toString));
fieldQuery.add(term, BooleanClause.Occur.MUST);
} else if (value instanceof Number) {
TermQuery term = new TermQuery(new Term(filter.getKey(), value.toString()));
fieldQuery.add(term, BooleanClause.Occur.MUST);
}
} else {
if (filter.getStart() instanceof Number || filter.getEnd() instanceof Number) {
// .............................. TODO
} else {
String start = null;
String end = null;
if (filter.getStart() instanceof Date || filter.getEnd() instanceof Date) {
if (null != filter.getStart()) {
start =
DateTools.timeToString(
((Date) filter.getStart()).getTime(), DateTools.Resolution.MINUTE);
}
if (null != filter.getEnd()) {
end =
DateTools.timeToString(
((Date) filter.getEnd()).getTime(), DateTools.Resolution.MINUTE);
}
} else {
start = (null != filter.getStart()) ? filter.getStart().toString().toLowerCase() : null;
end = (null != filter.getEnd()) ? filter.getEnd().toString().toLowerCase() : null;
}
BytesRef byteStart = (null != start) ? new BytesRef(start.getBytes()) : null;
BytesRef byteEnd = (null != end) ? new BytesRef(end.getBytes()) : null;
TermRangeQuery range = new TermRangeQuery(filter.getKey(), byteStart, byteEnd, true, true);
fieldQuery.add(range, BooleanClause.Occur.MUST);
}
}
return fieldQuery;
}
public Query createQuery(FieldContext fieldContext) {
final Query perFieldQuery;
final String fieldName = fieldContext.getField();
/*
* Store terms per position and detect if for a given position more than one term is present
*/
TokenStream stream = null;
boolean isMultiPhrase = false;
Map<Integer, List<Term>> termsPerPosition = new HashMap<Integer, List<Term>>();
final String sentence = phraseContext.getSentence();
try {
Reader reader = new StringReader(sentence);
stream = queryContext.getQueryAnalyzer().tokenStream(fieldName, reader);
CharTermAttribute termAttribute = stream.addAttribute(CharTermAttribute.class);
PositionIncrementAttribute positionAttribute =
stream.addAttribute(PositionIncrementAttribute.class);
stream.reset();
int position = -1; // start at -1 since we apply at least one increment
List<Term> termsAtSamePosition = null;
while (stream.incrementToken()) {
int positionIncrement = 1;
if (positionAttribute != null) {
positionIncrement = positionAttribute.getPositionIncrement();
}
if (positionIncrement > 0) {
position += positionIncrement;
termsAtSamePosition = termsPerPosition.get(position);
}
if (termsAtSamePosition == null) {
termsAtSamePosition = new ArrayList<Term>();
termsPerPosition.put(position, termsAtSamePosition);
}
String termString = new String(termAttribute.buffer(), 0, termAttribute.length());
termsAtSamePosition.add(new Term(fieldName, termString));
if (termsAtSamePosition.size() > 1) {
isMultiPhrase = true;
}
}
} catch (IOException e) {
throw new AssertionFailure("IOException while reading a string. Doh!", e);
} finally {
if (stream != null) {
try {
stream.end();
stream.close();
} catch (IOException e) {
throw new AssertionFailure("IOException while reading a string. Doh!", e);
}
}
}
/*
* Create the appropriate query depending on the conditions
* note that a MultiPhraseQuery is needed if several terms share the same position
* as it will do a OR and not a AND like PhraseQuery
*/
final int size = termsPerPosition.size();
if (size == 0) {
perFieldQuery = new BooleanQuery.Builder().build();
} else if (size <= 1) {
final List<Term> terms = termsPerPosition.values().iterator().next();
if (terms.size() == 1) {
perFieldQuery = new TermQuery(terms.get(0));
} else {
BooleanQuery.Builder booleanQueryBuilder = new BooleanQuery.Builder();
for (Term term : terms) {
booleanQueryBuilder.add(new TermQuery(term), BooleanClause.Occur.SHOULD);
}
perFieldQuery = booleanQueryBuilder.build();
}
} else {
if (isMultiPhrase) {
MultiPhraseQuery query = new MultiPhraseQuery();
query.setSlop(phraseContext.getSlop());
for (Map.Entry<Integer, List<Term>> entry : termsPerPosition.entrySet()) {
final List<Term> value = entry.getValue();
query.add(value.toArray(new Term[value.size()]), entry.getKey());
}
perFieldQuery = query;
} else {
PhraseQuery query = new PhraseQuery();
query.setSlop(phraseContext.getSlop());
for (Map.Entry<Integer, List<Term>> entry : termsPerPosition.entrySet()) {
final List<Term> value = entry.getValue();
query.add(value.get(0), entry.getKey());
}
perFieldQuery = query;
}
}
return fieldContext.getFieldCustomizer().setWrappedQuery(perFieldQuery).createQuery();
}
// Test scores with one field with Term Freqs and one without, otherwise with equal content
public void testBasic() throws Exception {
Directory dir = newDirectory();
Analyzer analyzer = new MockAnalyzer(random());
IndexWriter writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, analyzer)
.setMaxBufferedDocs(2)
.setSimilarity(new SimpleSimilarity())
.setMergePolicy(newLogMergePolicy(2)));
StringBuilder sb = new StringBuilder(265);
String term = "term";
for (int i = 0; i < 30; i++) {
Document d = new Document();
sb.append(term).append(" ");
String content = sb.toString();
Field noTf = newField("noTf", content + (i % 2 == 0 ? "" : " notf"), omitType);
d.add(noTf);
Field tf = newField("tf", content + (i % 2 == 0 ? " tf" : ""), normalType);
d.add(tf);
writer.addDocument(d);
// System.out.println(d);
}
writer.forceMerge(1);
// flush
writer.close();
/*
* Verify the index
*/
IndexReader reader = DirectoryReader.open(dir);
IndexSearcher searcher = newSearcher(reader);
searcher.setSimilarity(new SimpleSimilarity());
Term a = new Term("noTf", term);
Term b = new Term("tf", term);
Term c = new Term("noTf", "notf");
Term d = new Term("tf", "tf");
TermQuery q1 = new TermQuery(a);
TermQuery q2 = new TermQuery(b);
TermQuery q3 = new TermQuery(c);
TermQuery q4 = new TermQuery(d);
PhraseQuery pq = new PhraseQuery();
pq.add(a);
pq.add(c);
try {
searcher.search(pq, 10);
fail("did not hit expected exception");
} catch (Exception e) {
Throwable cause = e;
// If the searcher uses an executor service, the IAE is wrapped into other exceptions
while (cause.getCause() != null) {
cause = cause.getCause();
}
assertTrue("Expected an IAE, got " + cause, cause instanceof IllegalStateException);
}
searcher.search(
q1,
new CountingHitCollector() {
private Scorer scorer;
@Override
public final void setScorer(Scorer scorer) {
this.scorer = scorer;
}
@Override
public final void collect(int doc) throws IOException {
// System.out.println("Q1: Doc=" + doc + " score=" + score);
float score = scorer.score();
assertTrue("got score=" + score, score == 1.0f);
super.collect(doc);
}
});
// System.out.println(CountingHitCollector.getCount());
searcher.search(
q2,
new CountingHitCollector() {
private Scorer scorer;
@Override
public final void setScorer(Scorer scorer) {
this.scorer = scorer;
}
@Override
public final void collect(int doc) throws IOException {
// System.out.println("Q2: Doc=" + doc + " score=" + score);
float score = scorer.score();
assertEquals(1.0f + doc, score, 0.00001f);
super.collect(doc);
}
});
// System.out.println(CountingHitCollector.getCount());
searcher.search(
q3,
new CountingHitCollector() {
private Scorer scorer;
@Override
public final void setScorer(Scorer scorer) {
this.scorer = scorer;
}
@Override
public final void collect(int doc) throws IOException {
// System.out.println("Q1: Doc=" + doc + " score=" + score);
float score = scorer.score();
assertTrue(score == 1.0f);
assertFalse(doc % 2 == 0);
super.collect(doc);
}
});
// System.out.println(CountingHitCollector.getCount());
searcher.search(
q4,
new CountingHitCollector() {
private Scorer scorer;
@Override
public final void setScorer(Scorer scorer) {
this.scorer = scorer;
}
@Override
public final void collect(int doc) throws IOException {
float score = scorer.score();
// System.out.println("Q1: Doc=" + doc + " score=" + score);
assertTrue(score == 1.0f);
assertTrue(doc % 2 == 0);
super.collect(doc);
}
});
// System.out.println(CountingHitCollector.getCount());
BooleanQuery bq = new BooleanQuery();
bq.add(q1, Occur.MUST);
bq.add(q4, Occur.MUST);
searcher.search(
bq,
new CountingHitCollector() {
@Override
public final void collect(int doc) throws IOException {
// System.out.println("BQ: Doc=" + doc + " score=" + score);
super.collect(doc);
}
});
assertEquals(15, CountingHitCollector.getCount());
reader.close();
dir.close();
}