/*
* Utility function to display a term vector.
*/
static void termVectorDisplay(Terms terms) throws IOException {
if ((terms == null) || (terms.size() == -1)) System.out.println(" The field is not stored.");
else {
/*
* The terms for this field are stored.
*/
System.out.println(" Vocabulary size: " + terms.size() + " terms");
TermsEnum ithTerm = terms.iterator(null);
/*
* Iterate over the terms in this document.
* Information about a term's occurrences (tf and
* positions) is accessed via the indexing API, which
* returns inverted lists that describe (only) the
* current document.
*/
while (ithTerm.next() != null) {
System.out.format(
" %10d %-20s %d ",
ithTerm.ord(), ithTerm.term().utf8ToString(), ithTerm.totalTermFreq());
DocsAndPositionsEnum currDoc = ithTerm.docsAndPositions(null, null);
currDoc.nextDoc();
for (int jthPosition = 0; jthPosition < ithTerm.totalTermFreq(); jthPosition++)
System.out.print(currDoc.nextPosition() + " ");
System.out.println();
}
;
}
;
}
/*
* listTermDictionary displays the term dictionary for a field.
*/
static void listTermDictionary(IndexReader reader, String fieldName) throws IOException {
System.out.println("\nTerm Dictionary: field " + fieldName);
/*
Grant says:
MultiFields.getTerms(IndexReader, fieldName)
*/
Terms terms = MultiFields.getTerms(reader, fieldName);
if ((terms == null) || (terms.size() == -1))
System.out.println(" The term dictionary is empty.");
else {
System.out.println(" Vocabulary size: " + terms.size() + " terms");
TermsEnum ithTerm = terms.iterator(null);
/*
* Iterate over the terms in this document.
* Information about a term's occurrences (tf and
* positions) is accessed via the indexing API, which
* returns inverted lists that describe (only) the
* current document.
*/
while (ithTerm.next() != null) {
System.out.format(
" %-30s %d %d\n",
ithTerm.term().utf8ToString(), ithTerm.docFreq(), ithTerm.totalTermFreq());
}
;
}
;
}
/**
* Adds terms and frequencies found in vector into the Map termFreqMap
*
* @param termFreqMap a Map of terms and their frequencies
* @param vector List of terms and their frequencies for a doc/field
* @param fieldName Optional field name of the terms for skip terms
*/
private void addTermFrequencies(
Map<String, Int> termFreqMap, Terms vector, @Nullable String fieldName) throws IOException {
final TermsEnum termsEnum = vector.iterator();
final CharsRefBuilder spare = new CharsRefBuilder();
BytesRef text;
while ((text = termsEnum.next()) != null) {
spare.copyUTF8Bytes(text);
final String term = spare.toString();
if (isNoiseWord(term)) {
continue;
}
if (isSkipTerm(fieldName, term)) {
continue;
}
final PostingsEnum docs = termsEnum.postings(null, null);
int freq = 0;
while (docs != null && docs.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
freq += docs.freq();
}
// increment frequency
Int cnt = termFreqMap.get(term);
if (cnt == null) {
cnt = new Int();
termFreqMap.put(term, cnt);
cnt.x = freq;
} else {
cnt.x += freq;
}
}
}
/**
* Reconstruct document fields.
*
* @param docNum document number. If this document is deleted, but the index is not optimized yet,
* the reconstruction process may still yield the reconstructed field content even from
* deleted documents.
* @return reconstructed document
* @throws Exception
*/
public Reconstructed reconstruct(int docNum) throws Exception {
if (docNum < 0 || docNum > reader.maxDoc()) {
throw new Exception("Document number outside of valid range.");
}
Reconstructed res = new Reconstructed();
if (deleted != null && deleted.get(docNum)) {
throw new Exception("Document is deleted.");
} else {
Document doc = reader.document(docNum);
for (int i = 0; i < fieldNames.length; i++) {
Field[] fs = doc.getFields(fieldNames[i]);
if (fs != null && fs.length > 0) {
res.getStoredFields().put(fieldNames[i], fs);
}
}
}
// collect values from unstored fields
HashSet<String> fields = new HashSet<String>(Arrays.asList(fieldNames));
// try to use term vectors if available
progress.maxValue = fieldNames.length;
progress.curValue = 0;
progress.minValue = 0;
for (int i = 0; i < fieldNames.length; i++) {
TermFreqVector tvf = reader.getTermFreqVector(docNum, fieldNames[i]);
if (tvf != null && tvf.size() > 0 && (tvf instanceof TermPositionVector)) {
TermPositionVector tpv = (TermPositionVector) tvf;
progress.message = "Reading term vectors ...";
progress.curValue = i;
setChanged();
notifyObservers(progress);
BytesRef[] tv = tpv.getTerms();
for (int k = 0; k < tv.length; k++) {
// do we have positions?
int[] posArr = tpv.getTermPositions(k);
if (posArr == null) {
// only offsets
TermVectorOffsetInfo[] offsets = tpv.getOffsets(k);
if (offsets.length == 0) {
continue;
}
// convert offsets into positions
posArr = convertOffsets(offsets);
}
GrowableStringArray gsa = res.getReconstructedFields().get(fieldNames[i]);
if (gsa == null) {
gsa = new GrowableStringArray();
res.getReconstructedFields().put(fieldNames[i], gsa);
}
for (int m = 0; m < posArr.length; m++) {
gsa.append(posArr[m], "|", tv[k].utf8ToString());
}
}
fields.remove(fieldNames[i]); // got what we wanted
}
}
// this loop collects data only from left-over fields
// not yet collected through term vectors
progress.maxValue = fields.size();
progress.curValue = 0;
progress.minValue = 0;
for (String fld : fields) {
progress.message = "Collecting terms in " + fld + " ...";
progress.curValue++;
setChanged();
notifyObservers(progress);
Terms terms = MultiFields.getTerms(reader, fld);
if (terms == null) { // no terms in this field
continue;
}
TermsEnum te = terms.iterator();
while (te.next() != null) {
DocsAndPositionsEnum dpe = te.docsAndPositions(deleted, null);
if (dpe == null) { // no position info for this field
break;
}
int num = dpe.advance(docNum);
if (num != docNum) { // either greater than or NO_MORE_DOCS
continue; // no data for this term in this doc
}
String term = te.term().utf8ToString();
GrowableStringArray gsa = (GrowableStringArray) res.getReconstructedFields().get(fld);
if (gsa == null) {
gsa = new GrowableStringArray();
res.getReconstructedFields().put(fld, gsa);
}
for (int k = 0; k < dpe.freq(); k++) {
int pos = dpe.nextPosition();
gsa.append(pos, "|", term);
}
}
}
progress.message = "Done.";
progress.curValue = 100;
setChanged();
notifyObservers(progress);
return res;
}
@Test
public void testRandom() throws Exception {
Directory directory = newDirectory();
final Random r = random();
final IndexWriterConfig iwc =
LuceneTestCase.newIndexWriterConfig(r, new MockAnalyzer(r))
.setMaxBufferedDocs(IndexWriterConfig.DISABLE_AUTO_FLUSH)
.setRAMBufferSizeMB(
scaledRandomIntBetween(16, 64)); // we might index a lot - don't go crazy here
RandomIndexWriter indexWriter = new RandomIndexWriter(r, directory, iwc);
int numUniqueChildValues = scaledRandomIntBetween(100, 2000);
String[] childValues = new String[numUniqueChildValues];
for (int i = 0; i < numUniqueChildValues; i++) {
childValues[i] = Integer.toString(i);
}
IntOpenHashSet filteredOrDeletedDocs = new IntOpenHashSet();
int childDocId = 0;
int numParentDocs = scaledRandomIntBetween(1, numUniqueChildValues);
ObjectObjectOpenHashMap<String, NavigableMap<String, FloatArrayList>> childValueToParentIds =
new ObjectObjectOpenHashMap<>();
for (int parentDocId = 0; parentDocId < numParentDocs; parentDocId++) {
boolean markParentAsDeleted = rarely();
boolean filterMe = rarely();
String parent = Integer.toString(parentDocId);
Document document = new Document();
document.add(
new StringField(UidFieldMapper.NAME, Uid.createUid("parent", parent), Field.Store.YES));
document.add(new StringField(TypeFieldMapper.NAME, "parent", Field.Store.NO));
if (markParentAsDeleted) {
filteredOrDeletedDocs.add(parentDocId);
document.add(new StringField("delete", "me", Field.Store.NO));
}
if (filterMe) {
filteredOrDeletedDocs.add(parentDocId);
document.add(new StringField("filter", "me", Field.Store.NO));
}
indexWriter.addDocument(document);
int numChildDocs = scaledRandomIntBetween(0, 100);
for (int i = 0; i < numChildDocs; i++) {
boolean markChildAsDeleted = rarely();
String childValue = childValues[random().nextInt(childValues.length)];
document = new Document();
document.add(
new StringField(
UidFieldMapper.NAME,
Uid.createUid("child", Integer.toString(childDocId++)),
Field.Store.NO));
document.add(new StringField(TypeFieldMapper.NAME, "child", Field.Store.NO));
document.add(
new StringField(
ParentFieldMapper.NAME, Uid.createUid("parent", parent), Field.Store.NO));
document.add(new StringField("field1", childValue, Field.Store.NO));
if (markChildAsDeleted) {
document.add(new StringField("delete", "me", Field.Store.NO));
}
indexWriter.addDocument(document);
if (!markChildAsDeleted) {
NavigableMap<String, FloatArrayList> parentIdToChildScores;
if (childValueToParentIds.containsKey(childValue)) {
parentIdToChildScores = childValueToParentIds.lget();
} else {
childValueToParentIds.put(childValue, parentIdToChildScores = new TreeMap<>());
}
if (!markParentAsDeleted && !filterMe) {
FloatArrayList childScores = parentIdToChildScores.get(parent);
if (childScores == null) {
parentIdToChildScores.put(parent, childScores = new FloatArrayList());
}
childScores.add(1f);
}
}
}
}
// Delete docs that are marked to be deleted.
indexWriter.deleteDocuments(new Term("delete", "me"));
indexWriter.commit();
IndexReader indexReader = DirectoryReader.open(directory);
IndexSearcher searcher = new IndexSearcher(indexReader);
Engine.Searcher engineSearcher =
new Engine.Searcher(ChildrenQueryTests.class.getSimpleName(), searcher);
((TestSearchContext) SearchContext.current())
.setSearcher(new ContextIndexSearcher(SearchContext.current(), engineSearcher));
int max = numUniqueChildValues / 4;
for (int i = 0; i < max; i++) {
// Simulate a parent update
if (random().nextBoolean()) {
final int numberOfUpdatableParents = numParentDocs - filteredOrDeletedDocs.size();
int numberOfUpdates =
RandomInts.randomIntBetween(
random(), 0, Math.min(numberOfUpdatableParents, TEST_NIGHTLY ? 25 : 5));
for (int j = 0; j < numberOfUpdates; j++) {
int parentId;
do {
parentId = random().nextInt(numParentDocs);
} while (filteredOrDeletedDocs.contains(parentId));
String parentUid = Uid.createUid("parent", Integer.toString(parentId));
indexWriter.deleteDocuments(new Term(UidFieldMapper.NAME, parentUid));
Document document = new Document();
document.add(new StringField(UidFieldMapper.NAME, parentUid, Field.Store.YES));
document.add(new StringField(TypeFieldMapper.NAME, "parent", Field.Store.NO));
indexWriter.addDocument(document);
}
indexReader.close();
indexReader = DirectoryReader.open(indexWriter.w, true);
searcher = new IndexSearcher(indexReader);
engineSearcher =
new Engine.Searcher(ChildrenConstantScoreQueryTests.class.getSimpleName(), searcher);
((TestSearchContext) SearchContext.current())
.setSearcher(new ContextIndexSearcher(SearchContext.current(), engineSearcher));
}
String childValue = childValues[random().nextInt(numUniqueChildValues)];
int shortCircuitParentDocSet = random().nextInt(numParentDocs);
ScoreType scoreType = ScoreType.values()[random().nextInt(ScoreType.values().length)];
// leave min/max set to 0 half the time
int minChildren = random().nextInt(2) * scaledRandomIntBetween(0, 110);
int maxChildren = random().nextInt(2) * scaledRandomIntBetween(minChildren, 110);
QueryBuilder queryBuilder =
hasChildQuery("child", constantScoreQuery(termQuery("field1", childValue)))
.scoreType(scoreType.name().toLowerCase(Locale.ENGLISH))
.minChildren(minChildren)
.maxChildren(maxChildren)
.setShortCircuitCutoff(shortCircuitParentDocSet);
// Using a FQ, will invoke / test the Scorer#advance(..) and also let the Weight#scorer not
// get live docs as acceptedDocs
queryBuilder = filteredQuery(queryBuilder, notFilter(termFilter("filter", "me")));
Query query = parseQuery(queryBuilder);
BitSetCollector collector = new BitSetCollector(indexReader.maxDoc());
int numHits = 1 + random().nextInt(25);
TopScoreDocCollector actualTopDocsCollector = TopScoreDocCollector.create(numHits);
searcher.search(query, MultiCollector.wrap(collector, actualTopDocsCollector));
FixedBitSet actualResult = collector.getResult();
FixedBitSet expectedResult = new FixedBitSet(indexReader.maxDoc());
TopScoreDocCollector expectedTopDocsCollector = TopScoreDocCollector.create(numHits);
if (childValueToParentIds.containsKey(childValue)) {
LeafReader slowLeafReader = SlowCompositeReaderWrapper.wrap(indexReader);
final FloatArrayList[] scores = new FloatArrayList[slowLeafReader.maxDoc()];
Terms terms = slowLeafReader.terms(UidFieldMapper.NAME);
if (terms != null) {
NavigableMap<String, FloatArrayList> parentIdToChildScores = childValueToParentIds.lget();
TermsEnum termsEnum = terms.iterator(null);
DocsEnum docsEnum = null;
for (Map.Entry<String, FloatArrayList> entry : parentIdToChildScores.entrySet()) {
int count = entry.getValue().elementsCount;
if (count >= minChildren && (maxChildren == 0 || count <= maxChildren)) {
TermsEnum.SeekStatus seekStatus =
termsEnum.seekCeil(Uid.createUidAsBytes("parent", entry.getKey()));
if (seekStatus == TermsEnum.SeekStatus.FOUND) {
docsEnum =
termsEnum.docs(slowLeafReader.getLiveDocs(), docsEnum, DocsEnum.FLAG_NONE);
expectedResult.set(docsEnum.nextDoc());
scores[docsEnum.docID()] = new FloatArrayList(entry.getValue());
} else if (seekStatus == TermsEnum.SeekStatus.END) {
break;
}
}
}
}
MockScorer mockScorer = new MockScorer(scoreType);
final LeafCollector leafCollector =
expectedTopDocsCollector.getLeafCollector(slowLeafReader.getContext());
leafCollector.setScorer(mockScorer);
for (int doc = expectedResult.nextSetBit(0);
doc < slowLeafReader.maxDoc();
doc =
doc + 1 >= expectedResult.length()
? DocIdSetIterator.NO_MORE_DOCS
: expectedResult.nextSetBit(doc + 1)) {
mockScorer.scores = scores[doc];
leafCollector.collect(doc);
}
}
assertBitSet(actualResult, expectedResult, searcher);
assertTopDocs(actualTopDocsCollector.topDocs(), expectedTopDocsCollector.topDocs());
}
indexWriter.close();
indexReader.close();
directory.close();
}
protected void validateResponse(
TermVectorResponse esResponse, Fields luceneFields, TestConfig testConfig)
throws IOException {
TestDoc testDoc = testConfig.doc;
HashSet<String> selectedFields =
testConfig.selectedFields == null
? null
: new HashSet<String>(Arrays.asList(testConfig.selectedFields));
Fields esTermVectorFields = esResponse.getFields();
for (TestFieldSetting field : testDoc.fieldSettings) {
Terms esTerms = esTermVectorFields.terms(field.name);
if (selectedFields != null && !selectedFields.contains(field.name)) {
assertNull(esTerms);
continue;
}
assertNotNull(esTerms);
Terms luceneTerms = luceneFields.terms(field.name);
TermsEnum esTermEnum = esTerms.iterator(null);
TermsEnum luceneTermEnum = luceneTerms.iterator(null);
while (esTermEnum.next() != null) {
assertNotNull(luceneTermEnum.next());
assertThat(esTermEnum.totalTermFreq(), equalTo(luceneTermEnum.totalTermFreq()));
DocsAndPositionsEnum esDocsPosEnum = esTermEnum.docsAndPositions(null, null, 0);
DocsAndPositionsEnum luceneDocsPosEnum = luceneTermEnum.docsAndPositions(null, null, 0);
if (luceneDocsPosEnum == null) {
// test we expect that...
assertFalse(field.storedOffset);
assertFalse(field.storedPayloads);
assertFalse(field.storedPositions);
continue;
}
String currentTerm = esTermEnum.term().utf8ToString();
assertThat(
"Token mismatch for field: " + field.name,
currentTerm,
equalTo(luceneTermEnum.term().utf8ToString()));
esDocsPosEnum.nextDoc();
luceneDocsPosEnum.nextDoc();
int freq = esDocsPosEnum.freq();
assertThat(freq, equalTo(luceneDocsPosEnum.freq()));
for (int i = 0; i < freq; i++) {
String failDesc = " (field:" + field.name + " term:" + currentTerm + ")";
int lucenePos = luceneDocsPosEnum.nextPosition();
int esPos = esDocsPosEnum.nextPosition();
if (field.storedPositions && testConfig.requestPositions) {
assertThat("Position test failed" + failDesc, lucenePos, equalTo(esPos));
} else {
assertThat("Missing position test failed" + failDesc, esPos, equalTo(-1));
}
if (field.storedOffset && testConfig.requestOffsets) {
assertThat(
"Offset test failed" + failDesc,
luceneDocsPosEnum.startOffset(),
equalTo(esDocsPosEnum.startOffset()));
assertThat(
"Offset test failed" + failDesc,
luceneDocsPosEnum.endOffset(),
equalTo(esDocsPosEnum.endOffset()));
} else {
assertThat(
"Missing offset test failed" + failDesc, esDocsPosEnum.startOffset(), equalTo(-1));
assertThat(
"Missing offset test failed" + failDesc, esDocsPosEnum.endOffset(), equalTo(-1));
}
if (field.storedPayloads && testConfig.requestPayloads) {
assertThat(
"Payload test failed" + failDesc,
luceneDocsPosEnum.getPayload(),
equalTo(esDocsPosEnum.getPayload()));
} else {
assertThat(
"Missing payload test failed" + failDesc,
esDocsPosEnum.getPayload(),
equalTo(null));
}
}
}
assertNull("Es returned terms are done but lucene isn't", luceneTermEnum.next());
}
}
/** @return A TermsEnum wrapped in a RamAccountingTermsEnum */
@Override
public TermsEnum beforeLoad(Terms terms) throws IOException {
return new RamAccountingTermsEnum(
type.wrapTermsEnum(terms.iterator()), breaker, this, this.fieldName);
}
