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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/testapp.h>
#include <vespa/searchlib/index/field_length_info.h>
#include <vespa/searchlib/diskindex/bitvectordictionary.h>
#include <vespa/searchlib/diskindex/fieldwriter.h>
#include <vespa/searchlib/index/dummyfileheadercontext.h>
#include <vespa/searchcommon/common/schema.h>
#include <filesystem>
#include <vespa/log/log.h>
LOG_SETUP("bitvector_test");
using namespace search::index;
using search::index::schema::DataType;
namespace search::diskindex {
struct FieldWriterWrapper
{
FieldWriter _writer;
FieldWriterWrapper(uint32_t docIdLimit, uint64_t numWordIds, vespalib::stringref path);
FieldWriterWrapper & newWord(vespalib::stringref word);
FieldWriterWrapper & add(uint32_t docId);
bool open(const Schema &schema, const uint32_t indexId,
const TuneFileSeqWrite &tuneFileWrite, const common::FileHeaderContext &fileHeaderContext);
};
FieldWriterWrapper::FieldWriterWrapper(uint32_t docIdLimit, uint64_t numWordIds, vespalib::stringref path)
: _writer(docIdLimit, numWordIds, path)
{
std::filesystem::create_directory(std::filesystem::path(path));
}
bool
FieldWriterWrapper::open(const Schema &schema, const uint32_t indexId,
const TuneFileSeqWrite &tuneFileWrite, const common::FileHeaderContext &fileHeaderContext)
{
return _writer.open(64, 10000, false, false, schema, indexId, FieldLengthInfo(), tuneFileWrite, fileHeaderContext);
}
FieldWriterWrapper &
FieldWriterWrapper::newWord(vespalib::stringref word)
{
_writer.newWord(word);
return *this;
}
FieldWriterWrapper &
FieldWriterWrapper::add(uint32_t docId)
{
DocIdAndFeatures daf;
daf.set_doc_id(docId);
daf.elements().emplace_back(0);
daf.elements().back().setNumOccs(1);
daf.word_positions().emplace_back(0);
//LOG(info, "add(%" PRIu64 ", %u)", wordNum, docId);
_writer.add(daf);
return *this;
}
class Test : public vespalib::TestApp
{
private:
Schema _schema;
uint32_t _indexId;
public:
void requireThatDictionaryHandlesNoEntries(bool directio, bool readmmap);
void requireThatDictionaryHandlesMultipleEntries(bool directio, bool readmmap);
Test();
~Test() override;
int Main() override;
};
void
Test::requireThatDictionaryHandlesNoEntries(bool directio, bool readmmap)
{
TuneFileSeqWrite tuneFileWrite;
TuneFileRandRead tuneFileRead;
DummyFileHeaderContext fileHeaderContext;
if (directio) {
tuneFileWrite.setWantDirectIO();
tuneFileRead.setWantDirectIO();
}
if (readmmap)
tuneFileRead.setWantMemoryMap();
std::filesystem::create_directory(std::filesystem::path("dump"));
FieldWriterWrapper fww(5, 2, "dump/1/");
EXPECT_TRUE(fww.open(_schema, _indexId, tuneFileWrite, fileHeaderContext));
fww.newWord("1").add(1);
fww.newWord("2").add(2).add(3);
EXPECT_TRUE(fww._writer.close());
BitVectorDictionary dict;
BitVectorKeyScope bvScope(BitVectorKeyScope::PERFIELD_WORDS);
EXPECT_TRUE(dict.open("dump/1/", tuneFileRead, bvScope));
EXPECT_EQUAL(5u, dict.getDocIdLimit());
EXPECT_EQUAL(0u, dict.getEntries().size());
EXPECT_FALSE(dict.lookup(1));
EXPECT_FALSE(dict.lookup(2));
}
void
Test::requireThatDictionaryHandlesMultipleEntries(bool directio, bool readmmap)
{
TuneFileSeqWrite tuneFileWrite;
TuneFileRandRead tuneFileRead;
DummyFileHeaderContext fileHeaderContext;
if (directio) {
tuneFileWrite.setWantDirectIO();
tuneFileRead.setWantDirectIO();
}
if (readmmap)
tuneFileRead.setWantMemoryMap();
FieldWriterWrapper fww(64, 6, "dump/2/");
EXPECT_TRUE(fww.open(_schema, _indexId, tuneFileWrite, fileHeaderContext));
// must have >16 docs in order to create bitvector for a word
// 17 docs for word 1
BitVector::UP bv1exp(BitVector::create(64));
fww.newWord("1");
for (uint32_t docId = 1; docId < 18; ++docId) {
fww.add(docId);
bv1exp->setBit(docId);
}
fww.newWord("2").add(1);
// 16 docs for word 3
fww.newWord("3");
for (uint32_t docId = 1; docId < 17; ++docId) {
fww.add(docId);
}
fww.newWord("4").add(1);
// 23 docs for word 5
BitVector::UP bv5exp(BitVector::create(64));
fww.newWord("5");
for (uint32_t docId = 1; docId < 24; ++docId) {
fww.add(docId * 2);
bv5exp->setBit(docId * 2);
}
fww.newWord("6").add(1);
EXPECT_TRUE(fww._writer.close());
BitVectorDictionary dict;
BitVectorKeyScope bvScope(BitVectorKeyScope::PERFIELD_WORDS);
EXPECT_TRUE(dict.open("dump/2/", tuneFileRead, bvScope));
EXPECT_EQUAL(64u, dict.getDocIdLimit());
EXPECT_EQUAL(2u, dict.getEntries().size());
BitVectorWordSingleKey e;
e = dict.getEntries()[0];
EXPECT_EQUAL(1u, e._wordNum);
EXPECT_EQUAL(17u, e._numDocs);
e = dict.getEntries()[1];
EXPECT_EQUAL(5u, e._wordNum);
EXPECT_EQUAL(23u, e._numDocs);
EXPECT_FALSE(dict.lookup(2));
EXPECT_FALSE(dict.lookup(3));
EXPECT_FALSE(dict.lookup(4));
EXPECT_FALSE(dict.lookup(6));
BitVector::UP bv1act = dict.lookup(1);
EXPECT_TRUE(bv1act);
EXPECT_TRUE(*bv1exp == *bv1act);
BitVector::UP bv5act = dict.lookup(5);
EXPECT_TRUE(bv5act);
EXPECT_TRUE(*bv5exp == *bv5act);
}
Test::Test()
: _schema(),
_indexId(0)
{
_schema.addIndexField(Schema::IndexField("f1", DataType::STRING));
}
Test::~Test() = default;
int
Test::Main()
{
TEST_INIT("bitvector_test");
if (_argc > 0) {
DummyFileHeaderContext::setCreator(_argv[0]);
}
TEST_DO(requireThatDictionaryHandlesNoEntries(false, false));
TEST_DO(requireThatDictionaryHandlesMultipleEntries(false, false));
TEST_DO(requireThatDictionaryHandlesNoEntries(true, false));
TEST_DO(requireThatDictionaryHandlesMultipleEntries(true, false));
TEST_DO(requireThatDictionaryHandlesNoEntries(false, true));
TEST_DO(requireThatDictionaryHandlesMultipleEntries(false, true));
TEST_DONE();
}
}
TEST_APPHOOK(search::diskindex::Test);
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