public boolean match(final Sort expected, final Sort acutal) {
if (expected == acutal) {
return true;
} else if ((expected == null) || (acutal == null)) {
return false;
} else {
final SortField[] expectedFields = expected.getSort();
final SortField[] actualFields = acutal.getSort();
if (expectedFields.length != actualFields.length) {
return false;
}
final ArgumentMatcher<String> matcher = ArgumentMatchers.naturalMatcher();
for (int i = 0; i < actualFields.length; i++) {
final SortField actualField = actualFields[i];
final SortField expectedField = expectedFields[i];
if (!matcher.match(expectedField.getField(), actualField.getField())) {
return false;
}
if (actualField.getType() != expectedField.getType()) {
return false;
}
if (expectedField.getReverse() != actualField.getReverse()) {
return false;
}
}
return true;
}
}
protected NamedList serializeTopDocs(QueryCommandResult result) throws IOException {
NamedList<Object> queryResult = new NamedList<>();
queryResult.add("matches", result.getMatches());
queryResult.add("totalHits", result.getTopDocs().totalHits);
// debug: assert !Float.isNaN(result.getTopDocs().getMaxScore()) ==
// rb.getGroupingSpec().isNeedScore();
if (!Float.isNaN(result.getTopDocs().getMaxScore())) {
queryResult.add("maxScore", result.getTopDocs().getMaxScore());
}
List<NamedList> documents = new ArrayList<>();
queryResult.add("documents", documents);
final IndexSchema schema = rb.req.getSearcher().getSchema();
SchemaField uniqueField = schema.getUniqueKeyField();
for (ScoreDoc scoreDoc : result.getTopDocs().scoreDocs) {
NamedList<Object> document = new NamedList<>();
documents.add(document);
Document doc = retrieveDocument(uniqueField, scoreDoc.doc);
document.add("id", uniqueField.getType().toExternal(doc.getField(uniqueField.getName())));
if (!Float.isNaN(scoreDoc.score)) {
document.add("score", scoreDoc.score);
}
if (!FieldDoc.class.isInstance(scoreDoc)) {
continue; // thus don't add sortValues below
}
FieldDoc fieldDoc = (FieldDoc) scoreDoc;
Object[] convertedSortValues = new Object[fieldDoc.fields.length];
for (int j = 0; j < fieldDoc.fields.length; j++) {
Object sortValue = fieldDoc.fields[j];
Sort groupSort = rb.getGroupingSpec().getGroupSort();
SchemaField field =
groupSort.getSort()[j].getField() != null
? schema.getFieldOrNull(groupSort.getSort()[j].getField())
: null;
if (field != null) {
FieldType fieldType = field.getType();
if (sortValue != null) {
sortValue = fieldType.marshalSortValue(sortValue);
}
}
convertedSortValues[j] = sortValue;
}
document.add("sortValues", convertedSortValues);
}
return queryResult;
}
/**
* Returns a mapping from the old document ID to its new location in the sorted index.
* Implementations can use the auxiliary {@link #sort(int, DocComparator)} to compute the
* old-to-new permutation given a list of documents and their corresponding values.
*
* <p>A return value of <tt>null</tt> is allowed and means that <code>reader</code> is already
* sorted.
*
* <p><b>NOTE:</b> deleted documents are expected to appear in the mapping as well, they will
* however be marked as deleted in the sorted view.
*/
DocMap sort(LeafReader reader) throws IOException {
SortField fields[] = sort.getSort();
final int reverseMul[] = new int[fields.length];
final LeafFieldComparator comparators[] = new LeafFieldComparator[fields.length];
for (int i = 0; i < fields.length; i++) {
reverseMul[i] = fields[i].getReverse() ? -1 : 1;
comparators[i] = fields[i].getComparator(1, i).getLeafComparator(reader.getContext());
comparators[i].setScorer(FAKESCORER);
}
final DocComparator comparator =
new DocComparator() {
@Override
public int compare(int docID1, int docID2) {
try {
for (int i = 0; i < comparators.length; i++) {
// TODO: would be better if copy() didnt cause a term lookup in TermOrdVal & co,
// the segments are always the same here...
comparators[i].copy(0, docID1);
comparators[i].setBottom(0);
int comp = reverseMul[i] * comparators[i].compareBottom(docID2);
if (comp != 0) {
return comp;
}
}
return Integer.compare(docID1, docID2); // docid order tiebreak
} catch (IOException e) {
throw new RuntimeException(e);
}
}
};
return sort(reader.maxDoc(), comparator);
}
public static boolean includesScore(Sort sort) {
if (sort == null) return true;
for (SortField sf : sort.getSort()) {
if (sf.getType() == SortField.Type.SCORE) return true;
}
return false;
}
private Sort deepCopy(Sort sort) {
if (sort == null) return null;
SortField[] fields = sort.getSort();
SortField[] copyFields = new SortField[fields.length];
for (int i = 0; i < copyFields.length; i++)
copyFields[i] = Util.cloneWithMarshaller(marshaller, fields[i]);
return new Sort(copyFields);
}
private void setTopDocs(HashMap<UUID, ClusteredTopDocs> topDocsResponses) {
this.topDocsResponses = topDocsResponses;
if (sort != null) {
// reversing sort fields to FieldDocSortedHitQueue work properly
for (SortField sf : sort.getSort()) {
boolean reverse = (Boolean) ReflectionUtil.getValue(sf, "reverse");
ReflectionUtil.setValue(sf, "reverse", !reverse);
}
hq =
ISPNPriorityQueueFactory.getFieldDocSortedHitQueue(
topDocsResponses.size(), sort.getSort());
} else hq = ISPNPriorityQueueFactory.getHitQueue(topDocsResponses.size());
// taking the first value of each queue
for (ClusteredTopDocs ctp : topDocsResponses.values()) {
if (ctp.hasNext()) hq.add(ctp.getNext());
}
}
protected ScoreDoc[] transformToNativeShardDoc(
List<NamedList<Object>> documents, Sort groupSort, String shard, IndexSchema schema) {
ScoreDoc[] scoreDocs = new ScoreDoc[documents.size()];
int j = 0;
for (NamedList<Object> document : documents) {
Object docId = document.get("id");
if (docId != null) {
docId = docId.toString();
} else {
log.error("doc {} has null 'id'", document);
}
Float score = (Float) document.get("score");
if (score == null) {
score = Float.NaN;
}
Object[] sortValues = null;
Object sortValuesVal = document.get("sortValues");
if (sortValuesVal != null) {
sortValues = ((List) sortValuesVal).toArray();
for (int k = 0; k < sortValues.length; k++) {
SchemaField field =
groupSort.getSort()[k].getField() != null
? schema.getFieldOrNull(groupSort.getSort()[k].getField())
: null;
if (field != null) {
FieldType fieldType = field.getType();
if (sortValues[k] != null) {
sortValues[k] = fieldType.unmarshalSortValue(sortValues[k]);
}
}
}
} else {
log.debug("doc {} has null 'sortValues'", document);
}
scoreDocs[j++] = new ShardDoc(score, sortValues, docId, shard);
}
return scoreDocs;
}
/**
* Creates a ToParentBlockJoinCollector. The provided sort must not be null. If you pass true
* trackScores, all ToParentBlockQuery instances must not use ScoreMode.None.
*/
public ToParentBlockJoinCollector(
Sort sort, int numParentHits, boolean trackScores, boolean trackMaxScore) throws IOException {
// TODO: allow null sort to be specialized to relevance
// only collector
this.sort = sort;
this.trackMaxScore = trackMaxScore;
if (trackMaxScore) {
maxScore = Float.MIN_VALUE;
}
// System.out.println("numParentHits=" + numParentHits);
this.trackScores = trackScores;
this.numParentHits = numParentHits;
queue = FieldValueHitQueue.create(sort.getSort(), numParentHits);
comparators = queue.getComparators();
}
private void mergeIds(ResponseBuilder rb, ShardRequest sreq) {
SortSpec ss = rb.getSortSpec();
Sort sort = ss.getSort();
SortField[] sortFields = null;
if (sort != null) sortFields = sort.getSort();
else {
sortFields = new SortField[] {SortField.FIELD_SCORE};
}
SchemaField uniqueKeyField = rb.req.getSchema().getUniqueKeyField();
// id to shard mapping, to eliminate any accidental dups
HashMap<Object, String> uniqueDoc = new HashMap<Object, String>();
// Merge the docs via a priority queue so we don't have to sort *all* of the
// documents... we only need to order the top (rows+start)
ShardFieldSortedHitQueue queue;
queue = new ShardFieldSortedHitQueue(sortFields, ss.getOffset() + ss.getCount());
long numFound = 0;
Float maxScore = null;
for (ShardResponse srsp : sreq.responses) {
SolrDocumentList docs =
(SolrDocumentList) srsp.getSolrResponse().getResponse().get("response");
// calculate global maxScore and numDocsFound
if (docs.getMaxScore() != null) {
maxScore = maxScore == null ? docs.getMaxScore() : Math.max(maxScore, docs.getMaxScore());
}
numFound += docs.getNumFound();
NamedList sortFieldValues =
(NamedList) (srsp.getSolrResponse().getResponse().get("sort_values"));
// go through every doc in this response, construct a ShardDoc, and
// put it in the priority queue so it can be ordered.
for (int i = 0; i < docs.size(); i++) {
SolrDocument doc = docs.get(i);
Object id = doc.getFieldValue(uniqueKeyField.getName());
String prevShard = uniqueDoc.put(id, srsp.getShard());
if (prevShard != null) {
// duplicate detected
numFound--;
// For now, just always use the first encountered since we can't currently
// remove the previous one added to the priority queue. If we switched
// to the Java5 PriorityQueue, this would be easier.
continue;
// make which duplicate is used deterministic based on shard
// if (prevShard.compareTo(srsp.shard) >= 0) {
// TODO: remove previous from priority queue
// continue;
// }
}
ShardDoc shardDoc = new ShardDoc();
shardDoc.id = id;
shardDoc.shard = srsp.getShard();
shardDoc.orderInShard = i;
Object scoreObj = doc.getFieldValue("score");
if (scoreObj != null) {
if (scoreObj instanceof String) {
shardDoc.score = Float.parseFloat((String) scoreObj);
} else {
shardDoc.score = (Float) scoreObj;
}
}
shardDoc.sortFieldValues = sortFieldValues;
queue.insertWithOverflow(shardDoc);
} // end for-each-doc-in-response
} // end for-each-response
// The queue now has 0 -> queuesize docs, where queuesize <= start + rows
// So we want to pop the last documents off the queue to get
// the docs offset -> queuesize
int resultSize = queue.size() - ss.getOffset();
resultSize = Math.max(0, resultSize); // there may not be any docs in range
Map<Object, ShardDoc> resultIds = new HashMap<Object, ShardDoc>();
for (int i = resultSize - 1; i >= 0; i--) {
ShardDoc shardDoc = (ShardDoc) queue.pop();
shardDoc.positionInResponse = i;
// Need the toString() for correlation with other lists that must
// be strings (like keys in highlighting, explain, etc)
resultIds.put(shardDoc.id.toString(), shardDoc);
}
SolrDocumentList responseDocs = new SolrDocumentList();
if (maxScore != null) responseDocs.setMaxScore(maxScore);
responseDocs.setNumFound(numFound);
responseDocs.setStart(ss.getOffset());
// size appropriately
for (int i = 0; i < resultSize; i++) responseDocs.add(null);
// save these results in a private area so we can access them
// again when retrieving stored fields.
// TODO: use ResponseBuilder (w/ comments) or the request context?
rb.resultIds = resultIds;
rb._responseDocs = responseDocs;
}
protected void doFieldSortValues(ResponseBuilder rb, SolrIndexSearcher searcher)
throws IOException {
SolrQueryRequest req = rb.req;
SolrQueryResponse rsp = rb.rsp;
// The query cache doesn't currently store sort field values, and SolrIndexSearcher doesn't
// currently have an option to return sort field values. Because of this, we
// take the documents given and re-derive the sort values.
boolean fsv = req.getParams().getBool(ResponseBuilder.FIELD_SORT_VALUES, false);
if (fsv) {
Sort sort = rb.getSortSpec().getSort();
SortField[] sortFields =
sort == null ? new SortField[] {SortField.FIELD_SCORE} : sort.getSort();
NamedList sortVals = new NamedList(); // order is important for the sort fields
Field field = new Field("dummy", "", Field.Store.YES, Field.Index.NO); // a dummy Field
SolrIndexReader reader = searcher.getReader();
SolrIndexReader[] readers = reader.getLeafReaders();
SolrIndexReader subReader = reader;
if (readers.length == 1) {
// if there is a single segment, use that subReader and avoid looking up each time
subReader = readers[0];
readers = null;
}
int[] offsets = reader.getLeafOffsets();
for (SortField sortField : sortFields) {
int type = sortField.getType();
if (type == SortField.SCORE || type == SortField.DOC) continue;
FieldComparator comparator = null;
FieldComparator comparators[] =
(readers == null) ? null : new FieldComparator[readers.length];
String fieldname = sortField.getField();
FieldType ft = fieldname == null ? null : req.getSchema().getFieldTypeNoEx(fieldname);
DocList docList = rb.getResults().docList;
ArrayList<Object> vals = new ArrayList<Object>(docList.size());
DocIterator it = rb.getResults().docList.iterator();
int offset = 0;
int idx = 0;
while (it.hasNext()) {
int doc = it.nextDoc();
if (readers != null) {
idx = SolrIndexReader.readerIndex(doc, offsets);
subReader = readers[idx];
offset = offsets[idx];
comparator = comparators[idx];
}
if (comparator == null) {
comparator = sortField.getComparator(1, 0);
comparator = comparator.setNextReader(subReader, offset);
if (comparators != null) comparators[idx] = comparator;
}
doc -= offset; // adjust for what segment this is in
comparator.copy(0, doc);
Object val = comparator.value(0);
// Sortable float, double, int, long types all just use a string
// comparator. For these, we need to put the type into a readable
// format. One reason for this is that XML can't represent all
// string values (or even all unicode code points).
// indexedToReadable() should be a no-op and should
// thus be harmless anyway (for all current ways anyway)
if (val instanceof String) {
field.setValue((String) val);
val = ft.toObject(field);
}
// Must do the same conversion when sorting by a
// String field in Lucene, which returns the terms
// data as BytesRef:
if (val instanceof BytesRef) {
field.setValue(((BytesRef) val).utf8ToString());
val = ft.toObject(field);
}
vals.add(val);
}
sortVals.add(fieldname, vals);
}
rsp.add("sort_values", sortVals);
}
}
/** {@inheritDoc} */
@Override
public Map<String, ?> transformToNative(
NamedList<NamedList> shardResponse, Sort groupSort, Sort sortWithinGroup, String shard) {
Map<String, Object> result = new HashMap<>();
final IndexSchema schema = rb.req.getSearcher().getSchema();
for (Map.Entry<String, NamedList> entry : shardResponse) {
String key = entry.getKey();
NamedList commandResult = entry.getValue();
Integer totalGroupedHitCount = (Integer) commandResult.get("totalGroupedHitCount");
Integer totalHits = (Integer) commandResult.get("totalHits");
if (totalHits != null) {
Integer matches = (Integer) commandResult.get("matches");
Float maxScore = (Float) commandResult.get("maxScore");
if (maxScore == null) {
maxScore = Float.NaN;
}
@SuppressWarnings("unchecked")
List<NamedList<Object>> documents =
(List<NamedList<Object>>) commandResult.get("documents");
ScoreDoc[] scoreDocs = new ScoreDoc[documents.size()];
int j = 0;
for (NamedList<Object> document : documents) {
Object docId = document.get("id");
Object uniqueId = null;
if (docId != null) uniqueId = docId.toString();
else log.warn("doc {} has null 'id'", document);
Float score = (Float) document.get("score");
if (score == null) {
score = Float.NaN;
}
Object[] sortValues = null;
Object sortValuesVal = document.get("sortValues");
if (sortValuesVal != null) {
sortValues = ((List) sortValuesVal).toArray();
for (int k = 0; k < sortValues.length; k++) {
SchemaField field =
groupSort.getSort()[k].getField() != null
? schema.getFieldOrNull(groupSort.getSort()[k].getField())
: null;
if (field != null) {
FieldType fieldType = field.getType();
if (sortValues[k] != null) {
sortValues[k] = fieldType.unmarshalSortValue(sortValues[k]);
}
}
}
} else {
log.warn("doc {} has null 'sortValues'", document);
}
scoreDocs[j++] = new ShardDoc(score, sortValues, uniqueId, shard);
}
result.put(
key, new QueryCommandResult(new TopDocs(totalHits, scoreDocs, maxScore), matches));
continue;
}
Integer totalHitCount = (Integer) commandResult.get("totalHitCount");
List<GroupDocs<BytesRef>> groupDocs = new ArrayList<>();
for (int i = 2; i < commandResult.size(); i++) {
String groupValue = commandResult.getName(i);
@SuppressWarnings("unchecked")
NamedList<Object> groupResult = (NamedList<Object>) commandResult.getVal(i);
Integer totalGroupHits = (Integer) groupResult.get("totalHits");
Float maxScore = (Float) groupResult.get("maxScore");
if (maxScore == null) {
maxScore = Float.NaN;
}
@SuppressWarnings("unchecked")
List<NamedList<Object>> documents = (List<NamedList<Object>>) groupResult.get("documents");
ScoreDoc[] scoreDocs = new ScoreDoc[documents.size()];
int j = 0;
for (NamedList<Object> document : documents) {
Object uniqueId = document.get("id").toString();
Float score = (Float) document.get("score");
if (score == null) {
score = Float.NaN;
}
Object[] sortValues = ((List) document.get("sortValues")).toArray();
for (int k = 0; k < sortValues.length; k++) {
SchemaField field =
sortWithinGroup.getSort()[k].getField() != null
? schema.getFieldOrNull(sortWithinGroup.getSort()[k].getField())
: null;
if (field != null) {
FieldType fieldType = field.getType();
if (sortValues[k] != null) {
sortValues[k] = fieldType.unmarshalSortValue(sortValues[k]);
}
}
}
scoreDocs[j++] = new ShardDoc(score, sortValues, uniqueId, shard);
}
BytesRef groupValueRef = groupValue != null ? new BytesRef(groupValue) : null;
groupDocs.add(
new GroupDocs<>(Float.NaN, maxScore, totalGroupHits, scoreDocs, groupValueRef, null));
}
@SuppressWarnings("unchecked")
GroupDocs<BytesRef>[] groupDocsArr = groupDocs.toArray(new GroupDocs[groupDocs.size()]);
TopGroups<BytesRef> topGroups =
new TopGroups<>(
groupSort.getSort(),
sortWithinGroup.getSort(),
totalHitCount,
totalGroupedHitCount,
groupDocsArr,
Float.NaN);
result.put(key, topGroups);
}
return result;
}
protected NamedList serializeTopGroups(TopGroups<BytesRef> data, SchemaField groupField)
throws IOException {
NamedList<Object> result = new NamedList<>();
result.add("totalGroupedHitCount", data.totalGroupedHitCount);
result.add("totalHitCount", data.totalHitCount);
if (data.totalGroupCount != null) {
result.add("totalGroupCount", data.totalGroupCount);
}
CharsRef spare = new CharsRef();
final IndexSchema schema = rb.req.getSearcher().getSchema();
SchemaField uniqueField = schema.getUniqueKeyField();
for (GroupDocs<BytesRef> searchGroup : data.groups) {
NamedList<Object> groupResult = new NamedList<>();
groupResult.add("totalHits", searchGroup.totalHits);
if (!Float.isNaN(searchGroup.maxScore)) {
groupResult.add("maxScore", searchGroup.maxScore);
}
List<NamedList<Object>> documents = new ArrayList<>();
for (int i = 0; i < searchGroup.scoreDocs.length; i++) {
NamedList<Object> document = new NamedList<>();
documents.add(document);
StoredDocument doc = retrieveDocument(uniqueField, searchGroup.scoreDocs[i].doc);
document.add("id", uniqueField.getType().toExternal(doc.getField(uniqueField.getName())));
if (!Float.isNaN(searchGroup.scoreDocs[i].score)) {
document.add("score", searchGroup.scoreDocs[i].score);
}
if (!(searchGroup.scoreDocs[i] instanceof FieldDoc)) {
continue;
}
FieldDoc fieldDoc = (FieldDoc) searchGroup.scoreDocs[i];
Object[] convertedSortValues = new Object[fieldDoc.fields.length];
for (int j = 0; j < fieldDoc.fields.length; j++) {
Object sortValue = fieldDoc.fields[j];
Sort sortWithinGroup = rb.getGroupingSpec().getSortWithinGroup();
SchemaField field =
sortWithinGroup.getSort()[j].getField() != null
? schema.getFieldOrNull(sortWithinGroup.getSort()[j].getField())
: null;
if (field != null) {
FieldType fieldType = field.getType();
if (sortValue != null) {
sortValue = fieldType.marshalSortValue(sortValue);
}
}
convertedSortValues[j] = sortValue;
}
document.add("sortValues", convertedSortValues);
}
groupResult.add("documents", documents);
String groupValue =
searchGroup.groupValue != null
? groupField.getType().indexedToReadable(searchGroup.groupValue.utf8ToString())
: null;
result.add(groupValue, groupResult);
}
return result;
}
/**
* Accumulates groups for the BlockJoinQuery specified by its slot.
*
* @param slot Search query's slot
* @param offset Parent docs offset
* @param maxDocsPerGroup Upper bound of documents per group number
* @param withinGroupOffset Offset within each group of child docs
* @param withinGroupSort Sort criteria within groups
* @param fillSortFields Specifies whether to add sort fields or not
* @return TopGroups for the query specified by slot
* @throws IOException if there is a low-level I/O error
*/
@SuppressWarnings({"unchecked", "rawtypes"})
private TopGroups<Integer> accumulateGroups(
int slot,
int offset,
int maxDocsPerGroup,
int withinGroupOffset,
Sort withinGroupSort,
boolean fillSortFields)
throws IOException {
final GroupDocs<Integer>[] groups = new GroupDocs[sortedGroups.length - offset];
final FakeScorer fakeScorer = new FakeScorer();
int totalGroupedHitCount = 0;
// System.out.println("slot=" + slot);
for (int groupIDX = offset; groupIDX < sortedGroups.length; groupIDX++) {
final OneGroup og = sortedGroups[groupIDX];
final int numChildDocs;
if (slot == -1 || slot >= og.counts.length) {
numChildDocs = 0;
} else {
numChildDocs = og.counts[slot];
}
// Number of documents in group should be bounded to prevent redundant memory allocation
final int numDocsInGroup = Math.max(1, Math.min(numChildDocs, maxDocsPerGroup));
// System.out.println("parent doc=" + og.doc + " numChildDocs=" + numChildDocs + " maxDocsPG="
// + maxDocsPerGroup);
// At this point we hold all docs w/ in each group,
// unsorted; we now sort them:
final TopDocsCollector<?> collector;
if (withinGroupSort == null) {
// System.out.println("sort by score");
// Sort by score
if (!trackScores) {
throw new IllegalArgumentException(
"cannot sort by relevance within group: trackScores=false");
}
collector = TopScoreDocCollector.create(numDocsInGroup, true);
} else {
// Sort by fields
collector =
TopFieldCollector.create(
withinGroupSort, numDocsInGroup, fillSortFields, trackScores, trackMaxScore, true);
}
collector.setScorer(fakeScorer);
collector.setNextReader(og.readerContext);
for (int docIDX = 0; docIDX < numChildDocs; docIDX++) {
// System.out.println("docIDX=" + docIDX + " vs " + og.docs[slot].length);
final int doc = og.docs[slot][docIDX];
fakeScorer.doc = doc;
if (trackScores) {
fakeScorer.score = og.scores[slot][docIDX];
}
collector.collect(doc);
}
totalGroupedHitCount += numChildDocs;
final Object[] groupSortValues;
if (fillSortFields) {
groupSortValues = new Object[comparators.length];
for (int sortFieldIDX = 0; sortFieldIDX < comparators.length; sortFieldIDX++) {
groupSortValues[sortFieldIDX] = comparators[sortFieldIDX].value(og.slot);
}
} else {
groupSortValues = null;
}
final TopDocs topDocs = collector.topDocs(withinGroupOffset, numDocsInGroup);
groups[groupIDX - offset] =
new GroupDocs<>(
og.score,
topDocs.getMaxScore(),
numChildDocs,
topDocs.scoreDocs,
og.doc,
groupSortValues);
}
return new TopGroups<>(
new TopGroups<>(
sort.getSort(),
withinGroupSort == null ? null : withinGroupSort.getSort(),
0,
totalGroupedHitCount,
groups,
maxScore),
totalHitCount);
}
public void handleMergeFields(ResponseBuilder rb, SolrIndexSearcher searcher)
throws IOException {
SolrQueryRequest req = rb.req;
SolrQueryResponse rsp = rb.rsp;
// The query cache doesn't currently store sort field values, and SolrIndexSearcher doesn't
// currently have an option to return sort field values. Because of this, we
// take the documents given and re-derive the sort values.
//
// TODO: See SOLR-5595
boolean fsv = req.getParams().getBool(ResponseBuilder.FIELD_SORT_VALUES, false);
if (fsv) {
NamedList<Object[]> sortVals = new NamedList<>(); // order is important for the sort fields
IndexReaderContext topReaderContext = searcher.getTopReaderContext();
List<LeafReaderContext> leaves = topReaderContext.leaves();
LeafReaderContext currentLeaf = null;
if (leaves.size() == 1) {
// if there is a single segment, use that subReader and avoid looking up each time
currentLeaf = leaves.get(0);
leaves = null;
}
DocList docList = rb.getResults().docList;
// sort ids from lowest to highest so we can access them in order
int nDocs = docList.size();
final long[] sortedIds = new long[nDocs];
final float[] scores = new float[nDocs]; // doc scores, parallel to sortedIds
DocList docs = rb.getResults().docList;
DocIterator it = docs.iterator();
for (int i = 0; i < nDocs; i++) {
sortedIds[i] = (((long) it.nextDoc()) << 32) | i;
scores[i] = docs.hasScores() ? it.score() : Float.NaN;
}
// sort ids and scores together
new InPlaceMergeSorter() {
@Override
protected void swap(int i, int j) {
long tmpId = sortedIds[i];
float tmpScore = scores[i];
sortedIds[i] = sortedIds[j];
scores[i] = scores[j];
sortedIds[j] = tmpId;
scores[j] = tmpScore;
}
@Override
protected int compare(int i, int j) {
return Long.compare(sortedIds[i], sortedIds[j]);
}
}.sort(0, sortedIds.length);
SortSpec sortSpec = rb.getSortSpec();
Sort sort = searcher.weightSort(sortSpec.getSort());
SortField[] sortFields =
sort == null ? new SortField[] {SortField.FIELD_SCORE} : sort.getSort();
List<SchemaField> schemaFields = sortSpec.getSchemaFields();
for (int fld = 0; fld < schemaFields.size(); fld++) {
SchemaField schemaField = schemaFields.get(fld);
FieldType ft = null == schemaField ? null : schemaField.getType();
SortField sortField = sortFields[fld];
SortField.Type type = sortField.getType();
// :TODO: would be simpler to always serialize every position of SortField[]
if (type == SortField.Type.SCORE || type == SortField.Type.DOC) continue;
FieldComparator<?> comparator = null;
LeafFieldComparator leafComparator = null;
Object[] vals = new Object[nDocs];
int lastIdx = -1;
int idx = 0;
for (int i = 0; i < sortedIds.length; ++i) {
long idAndPos = sortedIds[i];
float score = scores[i];
int doc = (int) (idAndPos >>> 32);
int position = (int) idAndPos;
if (leaves != null) {
idx = ReaderUtil.subIndex(doc, leaves);
currentLeaf = leaves.get(idx);
if (idx != lastIdx) {
// we switched segments. invalidate comparator.
comparator = null;
}
}
if (comparator == null) {
comparator = sortField.getComparator(1, 0);
leafComparator = comparator.getLeafComparator(currentLeaf);
}
doc -= currentLeaf.docBase; // adjust for what segment this is in
leafComparator.setScorer(new FakeScorer(doc, score));
leafComparator.copy(0, doc);
Object val = comparator.value(0);
if (null != ft) val = ft.marshalSortValue(val);
vals[position] = val;
}
sortVals.add(sortField.getField(), vals);
}
rsp.add("merge_values", sortVals);
}
}
/** {@inheritDoc} */
@Override
public Map<String, ?> transformToNative(
NamedList<NamedList> shardResponse, Sort groupSort, Sort sortWithinGroup, String shard) {
Map<String, Object> result = new HashMap<>();
final IndexSchema schema = rb.req.getSearcher().getSchema();
for (Map.Entry<String, NamedList> entry : shardResponse) {
String key = entry.getKey();
NamedList commandResult = entry.getValue();
Integer totalGroupedHitCount = (Integer) commandResult.get("totalGroupedHitCount");
Integer totalHits = (Integer) commandResult.get("totalHits");
if (totalHits != null) {
Integer matches = (Integer) commandResult.get("matches");
Float maxScore = (Float) commandResult.get("maxScore");
if (maxScore == null) {
maxScore = Float.NaN;
}
@SuppressWarnings("unchecked")
List<NamedList<Object>> documents =
(List<NamedList<Object>>) commandResult.get("documents");
ScoreDoc[] scoreDocs = transformToNativeShardDoc(documents, groupSort, shard, schema);
final TopDocs topDocs;
if (sortWithinGroup.equals(Sort.RELEVANCE)) {
topDocs = new TopDocs(totalHits, scoreDocs, maxScore);
} else {
topDocs = new TopFieldDocs(totalHits, scoreDocs, sortWithinGroup.getSort(), maxScore);
}
result.put(key, new QueryCommandResult(topDocs, matches));
continue;
}
Integer totalHitCount = (Integer) commandResult.get("totalHitCount");
List<GroupDocs<BytesRef>> groupDocs = new ArrayList<>();
for (int i = 2; i < commandResult.size(); i++) {
String groupValue = commandResult.getName(i);
@SuppressWarnings("unchecked")
NamedList<Object> groupResult = (NamedList<Object>) commandResult.getVal(i);
Integer totalGroupHits = (Integer) groupResult.get("totalHits");
Float maxScore = (Float) groupResult.get("maxScore");
if (maxScore == null) {
maxScore = Float.NaN;
}
@SuppressWarnings("unchecked")
List<NamedList<Object>> documents = (List<NamedList<Object>>) groupResult.get("documents");
ScoreDoc[] scoreDocs = transformToNativeShardDoc(documents, sortWithinGroup, shard, schema);
BytesRef groupValueRef = groupValue != null ? new BytesRef(groupValue) : null;
groupDocs.add(
new GroupDocs<>(Float.NaN, maxScore, totalGroupHits, scoreDocs, groupValueRef, null));
}
@SuppressWarnings("unchecked")
GroupDocs<BytesRef>[] groupDocsArr = groupDocs.toArray(new GroupDocs[groupDocs.size()]);
TopGroups<BytesRef> topGroups =
new TopGroups<>(
groupSort.getSort(),
sortWithinGroup.getSort(),
totalHitCount,
totalGroupedHitCount,
groupDocsArr,
Float.NaN);
result.put(key, topGroups);
}
return result;
}