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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#ifndef ROCKSDB_LITE
#include <cinttypes>
#include "rocksdb/db.h"
#include "rocksdb/sst_file_reader.h"
#include "rocksdb/sst_file_writer.h"
#include "table/sst_file_writer_collectors.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
#include "utilities/merge_operators.h"
namespace ROCKSDB_NAMESPACE {
std::string EncodeAsString(uint64_t v) {
char buf[16];
snprintf(buf, sizeof(buf), "%08" PRIu64, v);
return std::string(buf);
}
std::string EncodeAsUint64(uint64_t v) {
std::string dst;
PutFixed64(&dst, v);
return dst;
}
class SstFileReaderTest : public testing::Test {
public:
SstFileReaderTest() {
options_.merge_operator = MergeOperators::CreateUInt64AddOperator();
sst_name_ = test::PerThreadDBPath("sst_file");
}
~SstFileReaderTest() {
Status s = Env::Default()->DeleteFile(sst_name_);
assert(s.ok());
}
void CreateFile(const std::string& file_name,
const std::vector<std::string>& keys) {
SstFileWriter writer(soptions_, options_);
ASSERT_OK(writer.Open(file_name));
for (size_t i = 0; i + 2 < keys.size(); i += 3) {
ASSERT_OK(writer.Put(keys[i], keys[i]));
ASSERT_OK(writer.Merge(keys[i + 1], EncodeAsUint64(i + 1)));
ASSERT_OK(writer.Delete(keys[i + 2]));
}
ASSERT_OK(writer.Finish());
}
void CheckFile(const std::string& file_name,
const std::vector<std::string>& keys,
bool check_global_seqno = false) {
ReadOptions ropts;
SstFileReader reader(options_);
ASSERT_OK(reader.Open(file_name));
ASSERT_OK(reader.VerifyChecksum());
std::unique_ptr<Iterator> iter(reader.NewIterator(ropts));
iter->SeekToFirst();
for (size_t i = 0; i + 2 < keys.size(); i += 3) {
ASSERT_TRUE(iter->Valid());
ASSERT_EQ(iter->key().compare(keys[i]), 0);
ASSERT_EQ(iter->value().compare(keys[i]), 0);
iter->Next();
ASSERT_TRUE(iter->Valid());
ASSERT_EQ(iter->key().compare(keys[i + 1]), 0);
ASSERT_EQ(iter->value().compare(EncodeAsUint64(i + 1)), 0);
iter->Next();
}
ASSERT_FALSE(iter->Valid());
if (check_global_seqno) {
auto properties = reader.GetTableProperties();
ASSERT_TRUE(properties);
auto& user_properties = properties->user_collected_properties;
ASSERT_TRUE(
user_properties.count(ExternalSstFilePropertyNames::kGlobalSeqno));
}
}
void CreateFileAndCheck(const std::vector<std::string>& keys) {
CreateFile(sst_name_, keys);
CheckFile(sst_name_, keys);
}
protected:
Options options_;
EnvOptions soptions_;
std::string sst_name_;
};
const uint64_t kNumKeys = 100;
TEST_F(SstFileReaderTest, Basic) {
std::vector<std::string> keys;
for (uint64_t i = 0; i < kNumKeys; i++) {
keys.emplace_back(EncodeAsString(i));
}
CreateFileAndCheck(keys);
}
TEST_F(SstFileReaderTest, Uint64Comparator) {
options_.comparator = test::Uint64Comparator();
std::vector<std::string> keys;
for (uint64_t i = 0; i < kNumKeys; i++) {
keys.emplace_back(EncodeAsUint64(i));
}
CreateFileAndCheck(keys);
}
TEST_F(SstFileReaderTest, ReadFileWithGlobalSeqno) {
std::vector<std::string> keys;
for (uint64_t i = 0; i < kNumKeys; i++) {
keys.emplace_back(EncodeAsString(i));
}
// Generate a SST file.
CreateFile(sst_name_, keys);
// Ingest the file into a db, to assign it a global sequence number.
Options options;
options.create_if_missing = true;
std::string db_name = test::PerThreadDBPath("test_db");
DB* db;
ASSERT_OK(DB::Open(options, db_name, &db));
// Bump sequence number.
ASSERT_OK(db->Put(WriteOptions(), keys[0], "foo"));
ASSERT_OK(db->Flush(FlushOptions()));
// Ingest the file.
IngestExternalFileOptions ingest_options;
ingest_options.write_global_seqno = true;
ASSERT_OK(db->IngestExternalFile({sst_name_}, ingest_options));
std::vector<std::string> live_files;
uint64_t manifest_file_size = 0;
ASSERT_OK(db->GetLiveFiles(live_files, &manifest_file_size));
// Get the ingested file.
std::string ingested_file;
for (auto& live_file : live_files) {
if (live_file.substr(live_file.size() - 4, std::string::npos) == ".sst") {
if (ingested_file.empty() || ingested_file < live_file) {
ingested_file = live_file;
}
}
}
ASSERT_FALSE(ingested_file.empty());
delete db;
// Verify the file can be open and read by SstFileReader.
CheckFile(db_name + ingested_file, keys, true /* check_global_seqno */);
// Cleanup.
ASSERT_OK(DestroyDB(db_name, options));
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
#else
#include <stdio.h>
int main(int /*argc*/, char** /*argv*/) {
fprintf(stderr,
"SKIPPED as SstFileReader is not supported in ROCKSDB_LITE\n");
return 0;
}
#endif // ROCKSDB_LITE
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