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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.document.serialization;
import com.yahoo.compress.CompressionType;
import com.yahoo.compress.Compressor;
import com.yahoo.document.CompressionConfig;
import com.yahoo.document.DataType;
import com.yahoo.document.Document;
import com.yahoo.document.DocumentType;
import com.yahoo.document.DocumentTypeManager;
import com.yahoo.document.Field;
import com.yahoo.document.MapDataType;
import com.yahoo.document.StructDataType;
import com.yahoo.document.datatypes.IntegerFieldValue;
import com.yahoo.document.datatypes.MapFieldValue;
import com.yahoo.document.datatypes.PredicateFieldValue;
import com.yahoo.document.datatypes.StringFieldValue;
import com.yahoo.document.datatypes.Struct;
import com.yahoo.io.GrowableByteBuffer;
import org.junit.Test;
import org.mockito.Mockito;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* @author Simon Thoresen Hult
* @author vekterli
*/
@SuppressWarnings("deprecation")
public class VespaDocumentSerializerTestCase {
@Test
public void get_serialized_size_uses_latest_serializer() {
DocumentType docType = new DocumentType("my_type");
docType.addField("my_str", DataType.STRING);
docType.addField("my_int", DataType.INT);
Document doc = new Document(docType, "doc:scheme:");
doc.setFieldValue("my_str", new StringFieldValue("foo"));
doc.setFieldValue("my_int", new IntegerFieldValue(69));
GrowableByteBuffer buf = new GrowableByteBuffer();
doc.serialize(buf);
assertEquals(buf.position(), VespaDocumentSerializer42.getSerializedSize(doc));
}
@Test
public void predicate_field_values_are_serialized() {
DocumentType docType = new DocumentType("my_type");
Field field = new Field("my_predicate", DataType.PREDICATE);
docType.addField(field);
Document doc = new Document(docType, "doc:scheme:");
PredicateFieldValue predicate = Mockito.mock(PredicateFieldValue.class);
doc.setFieldValue("my_predicate", predicate);
DocumentSerializerFactory.create42(new GrowableByteBuffer()).write(doc);
Mockito.verify(predicate, Mockito.times(1)).serialize(Mockito.same(field), Mockito.any(FieldWriter.class));
}
static class CompressionFixture {
static final String COMPRESSABLE_STRING = "zippy zip mc zippington the 3rd zippy zip";
final DocumentTypeManager manager;
final DocumentType docType;
final StructDataType nestedType;
final MapDataType mapType;
CompressionFixture() {
docType = new DocumentType("map_of_structs");
docType.getHeaderType().setCompressionConfig(new CompressionConfig(CompressionType.LZ4));
nestedType = new StructDataType("nested_type");
nestedType.addField(new Field("str", DataType.STRING));
mapType = new MapDataType(DataType.STRING, nestedType);
docType.addField(new Field("map", mapType));
manager = new DocumentTypeManager();
manager.registerDocumentType(docType);
}
static GrowableByteBuffer asSerialized(Document inputDoc) {
GrowableByteBuffer buf = new GrowableByteBuffer();
inputDoc.serialize(buf);
buf.flip();
return buf;
}
Document roundtripSerialize(Document inputDoc) {
return manager.createDocument(asSerialized(inputDoc));
}
}
@Test
public void compressed_map_of_compressed_structs_is_supported() {
CompressionFixture fixture = new CompressionFixture();
Document doc = new Document(fixture.docType, "id:foo:map_of_structs::flarn");
Struct nested = new Struct(fixture.nestedType);
nested.setFieldValue("str", new StringFieldValue(CompressionFixture.COMPRESSABLE_STRING));
MapFieldValue<StringFieldValue, Struct> map = new MapFieldValue<StringFieldValue, Struct>(fixture.mapType);
map.put(new StringFieldValue("foo"), nested);
map.put(new StringFieldValue("bar"), nested);
doc.setFieldValue("map", map);
// Should _not_ throw any deserialization exceptions
Document result = fixture.roundtripSerialize(doc);
assertEquals(doc, result);
}
@Test
public void incompressable_structs_are_serialized_without_buffer_size_overhead_bug() {
CompressionFixture fixture = new CompressionFixture();
Document doc = new Document(fixture.docType, "id:foo:map_of_structs::flarn");
Struct nested = new Struct(fixture.nestedType);
nested.setFieldValue("str", new StringFieldValue(CompressionFixture.COMPRESSABLE_STRING));
MapFieldValue<StringFieldValue, Struct> map = new MapFieldValue<StringFieldValue, Struct>(fixture.mapType);
// Only 1 struct added. Not enough redundant information that header struct containing map itself
// can be compressed.
map.put(new StringFieldValue("foo"), nested);
doc.setFieldValue("map", map);
GrowableByteBuffer buf = CompressionFixture.asSerialized(doc);
// Explanation of arbitrary value: buffer copy bug meant that incompressable structs were all serialized
// rounded up to 4096 bytes.
assertTrue(buf.remaining() < 4096);
}
}
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