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SOLR-10255 Add support for docValues to solr.BinaryField #2536

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merged 5 commits into from
Jul 17, 2024
Merged

SOLR-10255 Add support for docValues to solr.BinaryField #2536

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d4e8907
SOLR-10255 Add support for docValues to solr.BinaryField
Jun 26, 2024
6eba352
Merge remote-tracking branch 'upstream/main' into SOLR-10255
Jun 26, 2024
90ed36b
Remove support for multivalued binary doc values
Jun 26, 2024
66692af
Merge remote-tracking branch 'upstream/main' into SOLR-10255
Jul 11, 2024
2aa8b24
Add CHANGES.txt entry
Jul 11, 2024
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39 changes: 38 additions & 1 deletion solr/core/src/java/org/apache/solr/schema/BinaryField.java
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,11 @@
import java.lang.invoke.MethodHandles;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Base64;
import java.util.Collections;
import java.util.List;
import org.apache.lucene.document.BinaryDocValuesField;
import org.apache.lucene.index.IndexableField;
import org.apache.lucene.search.SortField;
import org.apache.lucene.util.BytesRef;
Expand All @@ -42,6 +46,11 @@ public void checkSchemaField(SchemaField field) {
SolrException.ErrorCode.SERVER_ERROR,
"Field type " + this + " is 'large'; not supported (yet)");
}
if (field.hasDocValues() && field.multiValued()) {
throw new SolrException(
SolrException.ErrorCode.SERVER_ERROR,
"Field type " + this + " does not support multiple doc values");
}
}

private String toBase64String(ByteBuffer buf) {
Expand Down Expand Up @@ -94,6 +103,10 @@ public IndexableField createField(SchemaField field, Object val) {
log.trace("Ignoring unstored binary field: {}", field);
return null;
}
return new org.apache.lucene.document.StoredField(field.getName(), getBytesRef(val));
}

private static BytesRef getBytesRef(Object val) {
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Moved the code for converting Object val to BytesRef for code reuse (and readability)

byte[] buf = null;
int offset = 0, len = 0;
if (val instanceof byte[]) {
Expand All @@ -112,7 +125,31 @@ public IndexableField createField(SchemaField field, Object val) {
len = buf.length;
}

return new org.apache.lucene.document.StoredField(field.getName(), buf, offset, len);
return new BytesRef(buf, offset, len);
}

@Override
public List<IndexableField> createFields(SchemaField field, Object val) {
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This is pretty much borrowed from StrField type that supports creating stored and/or docValued Lucene fields for a single Solr field.

IndexableField fval = createField(field, val);

if (field.hasDocValues() && !field.multiValued()) {
IndexableField docval = new BinaryDocValuesField(field.getName(), getBytesRef(val));
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This is the crux of the changes - we want to use Lucene BinaryDocValuesField if user specified docValues="true" in the schema.


// Only create list if we have 2 values...
if (fval != null) {
List<IndexableField> fields = new ArrayList<>(2);
fields.add(fval);
fields.add(docval);
return fields;
}

fval = docval;
}
return Collections.singletonList(fval);
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@mkhludnev mkhludnev Jul 9, 2024 •
edited
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May it be simplified as

Stream.of(createField(field, val), 
(field.hasDocValues() && !field.multiValued()) ? new BinaryDocValuesField(field.getName(), getBytesRef(val)):null)
                 .filter(obj -> obj != null)
                 .collect(Collectors.toList());

?

UPD: However, Streams may put too much footprint.

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Yeah, my understanding is that this code is getting executed every time the field of this type is being indexed.

I borrowed the code from StrField type that supports creating stored and/or docValued Lucene fields for a single Solr field and there were such optimizations to create an ArrayList only in case of when both stored and docValues options are enabled.

I guess it makes sense to keep this code consistent across different field types until there's some appetite in rewriting this in streams or List.of style across the board.

}

@Override
protected void checkSupportsDocValues() { // we support DocValues
}

@Override
Expand Down
2 changes: 1 addition & 1 deletion solr/core/src/java/org/apache/solr/search/SolrDocumentFetcher.java
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Original file line number Diff line number Diff line change
Expand Up @@ -637,7 +637,7 @@ private Object decodeDVField(
case BINARY:
BinaryDocValues bdv = e.getBinaryDocValues(localId, leafReader, readerOrd);
if (bdv != null) {
return BytesRef.deepCopyOf(bdv.binaryValue());
return BytesRef.deepCopyOf(bdv.binaryValue()).bytes;
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@serba serba Jun 26, 2024 •
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Previously this code was returning BytesRef objects that were serialized up the stack with a simple .toString into BytesRef@<hash-code> string. You can revert this change and see it yourself in a test failure.

Now we return a byte[] which is correctly supported by Solr/SolrJ client and serialized as base64.

Note that there's no any additional performance overhead as we were already doing deepCopy into a new byte array and .bytes simply return a reference to a byte array.

}
return null;
case SORTED:
Expand Down
6 changes: 3 additions & 3 deletions solr/core/src/test-files/solr/collection1/conf/bad-schema-unsupported-docValues.xml
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I'm not sure why to bother with random field. Shouldn't we just remove this file and test, since now we have binary DV?

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I think this test is not testing binary doc values per say, but exception handling for any field type that does not support docValues. I was going through different field types to find the best candidate now and figured RandomSortField is the best one as it will never get DocValues support.

Original file line number Diff line number Diff line change
Expand Up @@ -17,10 +17,10 @@
-->

<schema name="bad-schema-docValues-unsupported" version="1.6">
<fieldType name="binary" class="solr.BinaryField"/>
<fieldType name="random" class="solr.RandomSortField" />


<!-- change the type if BinaryField gets doc values -->
<field name="id" type="binary" docValues="true"/>
<!-- change the type if RandomSortField gets doc values -->
<field name="id" type="random" docValues="true"/>

</schema>
1 change: 1 addition & 0 deletions solr/core/src/test-files/solr/collection1/conf/schema-binaryfield.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,7 @@

<field name="id" type="string" indexed="true" stored="true" multiValued="false" required="true"/>
<field name="data" type="binary" stored="true"/>
<field name="data_dv" type="binary" stored="false" docValues="true" />


<uniqueKey>id</uniqueKey>
Expand Down
90 changes: 48 additions & 42 deletions solr/core/src/test/org/apache/solr/schema/TestBinaryField.java
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Expand Up @@ -82,73 +82,78 @@ public void testSimple() throws Exception {
doc = new SolrInputDocument();
doc.addField("id", 1);
doc.addField("data", ByteBuffer.wrap(buf, 2, 5));
doc.addField("data_dv", ByteBuffer.wrap(buf, 2, 5));
client.add(doc);

doc = new SolrInputDocument();
doc.addField("id", 2);
doc.addField("data", ByteBuffer.wrap(buf, 4, 3));
doc.addField("data_dv", ByteBuffer.wrap(buf, 4, 3));
client.add(doc);

doc = new SolrInputDocument();
doc.addField("id", 3);
doc.addField("data", buf);
doc.addField("data_dv", buf);
client.add(doc);

client.commit();

QueryResponse resp = client.query(new SolrQuery("*:*"));
QueryResponse resp = client.query(new SolrQuery("*:*").setFields("id", "data", "data_dv"));
SolrDocumentList res = resp.getResults();
List<Bean> beans = resp.getBeans(Bean.class);
assertEquals(3, res.size());
assertEquals(3, beans.size());
for (SolrDocument d : res) {

Integer id = Integer.parseInt(d.getFieldValue("id").toString());
byte[] data = (byte[]) d.getFieldValue("data");
if (id == 1) {
assertEquals(5, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) (i + 2), b);
}

} else if (id == 2) {
assertEquals(3, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) (i + 4), b);
}

} else if (id == 3) {
assertEquals(10, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) i, b);
for (String field : new String[] {"data", "data_dv"}) {
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Please review these code changes with "Hide Whitespaces" toggle on.

Screenshot 2024-06-25 at 11 11 10 PM

byte[] data = (byte[]) d.getFieldValue(field);
if (id == 1) {
assertEquals(5, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) (i + 2), b);
}

} else if (id == 2) {
assertEquals(3, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) (i + 4), b);
}

} else if (id == 3) {
assertEquals(10, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) i, b);
}
}
}
}
for (Bean d : beans) {
Integer id = Integer.parseInt(d.id);
byte[] data = d.data;
if (id == 1) {
assertEquals(5, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) (i + 2), b);
}

} else if (id == 2) {
assertEquals(3, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) (i + 4), b);
}

} else if (id == 3) {
assertEquals(10, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) i, b);
for (byte[] data : new byte[][] {d.data, d.data_dv}) {
if (id == 1) {
assertEquals(5, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) (i + 2), b);
}

} else if (id == 2) {
assertEquals(3, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) (i + 4), b);
}

} else if (id == 3) {
assertEquals(10, data.length);
for (int i = 0; i < data.length; i++) {
byte b = data[i];
assertEquals((byte) i, b);
}
}
}
}
Expand All @@ -158,5 +163,6 @@ public void testSimple() throws Exception {
public static class Bean {
@Field String id;
@Field byte[] data;
@Field byte[] data_dv;
}
}
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