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;
}
}
@Override
public void parse(XContentParser parser, SearchContext context) throws Exception {
XContentParser.Token token = parser.currentToken();
List<SortField> sortFields = Lists.newArrayListWithCapacity(2);
if (token == XContentParser.Token.START_ARRAY) {
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
if (token == XContentParser.Token.START_OBJECT) {
addCompoundSortField(parser, context, sortFields);
} else if (token == XContentParser.Token.VALUE_STRING) {
addSortField(context, sortFields, parser.text(), false, false, null, null, null, null);
}
}
} else {
addCompoundSortField(parser, context, sortFields);
}
if (!sortFields.isEmpty()) {
// optimize if we just sort on score non reversed, we don't really need sorting
boolean sort;
if (sortFields.size() > 1) {
sort = true;
} else {
SortField sortField = sortFields.get(0);
if (sortField.getType() == SortField.Type.SCORE && !sortField.getReverse()) {
sort = false;
} else {
sort = true;
}
}
if (sort) {
context.sort(new Sort(sortFields.toArray(new SortField[sortFields.size()])));
}
}
}
private SortSpec modifySortSpec(
SortSpec current, boolean force, ElevationComparatorSource comparator) {
boolean modify = false;
SortField[] currentSorts = current.getSort().getSort();
List<SchemaField> currentFields = current.getSchemaFields();
ArrayList<SortField> sorts = new ArrayList<SortField>(currentSorts.length + 1);
List<SchemaField> fields = new ArrayList<SchemaField>(currentFields.size() + 1);
// Perhaps force it to always sort by score
if (force && currentSorts[0].getType() != SortField.Type.SCORE) {
sorts.add(new SortField("_elevate_", comparator, true));
fields.add(null);
modify = true;
}
for (int i = 0; i < currentSorts.length; i++) {
SortField sf = currentSorts[i];
if (sf.getType() == SortField.Type.SCORE) {
sorts.add(new SortField("_elevate_", comparator, !sf.getReverse()));
fields.add(null);
modify = true;
}
sorts.add(sf);
fields.add(currentFields.get(i));
}
if (modify) {
SortSpec newSpec = new SortSpec(new Sort(sorts.toArray(new SortField[sorts.size()])), fields);
newSpec.setOffset(current.getOffset());
newSpec.setCount(current.getCount());
return newSpec;
}
return null;
}
private static DocComparatorSource getComparatorSource(Browsable browser, SortField sf) {
DocComparatorSource compSource = null;
if (SortField.FIELD_DOC.equals(sf)) {
compSource = new DocIdDocComparatorSource();
} else if (SortField.FIELD_SCORE.equals(sf) || sf.getType() == SortField.SCORE) {
// we want to do reverse sorting regardless for relevance
compSource = new ReverseDocComparatorSource(new RelevanceDocComparatorSource());
} else if (sf instanceof BoboCustomSortField) {
BoboCustomSortField custField = (BoboCustomSortField) sf;
DocComparatorSource src = custField.getCustomComparatorSource();
assert src != null;
compSource = src;
} else {
Set<String> facetNames = browser.getFacetNames();
String sortName = sf.getField();
if (facetNames.contains(sortName)) {
FacetHandler<?> handler = browser.getFacetHandler(sortName);
assert handler != null;
compSource = handler.getDocComparatorSource();
} else { // default lucene field
logger.info("doing default lucene sort for: " + sf);
compSource = getNonFacetComparatorSource(sf);
}
}
boolean reverse = sf.getReverse();
if (reverse) {
compSource = new ReverseDocComparatorSource(compSource);
}
compSource.setReverse(reverse);
return compSource;
}
@Override
protected void sortFieldAssertions(
GeoDistanceSortBuilder builder, SortField sortField, DocValueFormat format)
throws IOException {
assertEquals(SortField.Type.CUSTOM, sortField.getType());
assertEquals(builder.order() == SortOrder.ASC ? false : true, sortField.getReverse());
assertEquals(builder.fieldName(), sortField.getField());
}
private static SortField convert(Browsable browser, SortField sort) {
String field = sort.getField();
FacetHandler<?> facetHandler = browser.getFacetHandler(field);
if (facetHandler != null) {
browser.getFacetHandler(field);
BoboCustomSortField sortField =
new BoboCustomSortField(field, sort.getReverse(), facetHandler.getDocComparatorSource());
return sortField;
} else {
return sort;
}
}
@Override
protected void sortFieldAssertions(
FieldSortBuilder builder, SortField sortField, DocValueFormat format) throws IOException {
SortField.Type expectedType;
if (builder.getFieldName().equals(FieldSortBuilder.DOC_FIELD_NAME)) {
expectedType = SortField.Type.DOC;
} else {
expectedType = SortField.Type.CUSTOM;
}
assertEquals(expectedType, sortField.getType());
assertEquals(builder.order() == SortOrder.ASC ? false : true, sortField.getReverse());
if (expectedType == SortField.Type.CUSTOM) {
assertEquals(builder.getFieldName(), sortField.getField());
}
assertEquals(DocValueFormat.RAW, format);
}
public static void writeTopDocs(StreamOutput out, TopDocs topDocs, int from) throws IOException {
if (topDocs.scoreDocs.length - from < 0) {
out.writeBoolean(false);
return;
}
out.writeBoolean(true);
if (topDocs instanceof TopFieldDocs) {
out.writeBoolean(true);
TopFieldDocs topFieldDocs = (TopFieldDocs) topDocs;
out.writeVInt(topDocs.totalHits);
out.writeFloat(topDocs.getMaxScore());
out.writeVInt(topFieldDocs.fields.length);
for (SortField sortField : topFieldDocs.fields) {
if (sortField.getField() == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
out.writeString(sortField.getField());
}
if (sortField.getComparatorSource() != null) {
writeSortType(
out,
((IndexFieldData.XFieldComparatorSource) sortField.getComparatorSource())
.reducedType());
} else {
writeSortType(out, sortField.getType());
}
out.writeBoolean(sortField.getReverse());
}
out.writeVInt(topDocs.scoreDocs.length - from);
int index = 0;
for (ScoreDoc doc : topFieldDocs.scoreDocs) {
if (index++ < from) {
continue;
}
FieldDoc fieldDoc = (FieldDoc) doc;
out.writeVInt(fieldDoc.fields.length);
for (Object field : fieldDoc.fields) {
if (field == null) {
out.writeByte((byte) 0);
} else {
Class type = field.getClass();
if (type == String.class) {
out.writeByte((byte) 1);
out.writeString((String) field);
} else if (type == Integer.class) {
out.writeByte((byte) 2);
out.writeInt((Integer) field);
} else if (type == Long.class) {
out.writeByte((byte) 3);
out.writeLong((Long) field);
} else if (type == Float.class) {
out.writeByte((byte) 4);
out.writeFloat((Float) field);
} else if (type == Double.class) {
out.writeByte((byte) 5);
out.writeDouble((Double) field);
} else if (type == Byte.class) {
out.writeByte((byte) 6);
out.writeByte((Byte) field);
} else if (type == Short.class) {
out.writeByte((byte) 7);
out.writeShort((Short) field);
} else if (type == Boolean.class) {
out.writeByte((byte) 8);
out.writeBoolean((Boolean) field);
} else if (type == BytesRef.class) {
out.writeByte((byte) 9);
out.writeBytesRef((BytesRef) field);
} else {
throw new IOException("Can't handle sort field value of type [" + type + "]");
}
}
}
out.writeVInt(doc.doc);
out.writeFloat(doc.score);
}
} else {
out.writeBoolean(false);
out.writeVInt(topDocs.totalHits);
out.writeFloat(topDocs.getMaxScore());
out.writeVInt(topDocs.scoreDocs.length - from);
int index = 0;
for (ScoreDoc doc : topDocs.scoreDocs) {
if (index++ < from) {
continue;
}
out.writeVInt(doc.doc);
out.writeFloat(doc.score);
}
}
}