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rust-rocksdb/librocksdb-sys/rocksdb/db/wide/db_wide_basic_test.cc

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// Copyright (c) Meta Platforms, Inc. and affiliates.
// 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).
#include <array>
#include <cctype>
#include <memory>
#include "db/db_test_util.h"
#include "port/stack_trace.h"
#include "test_util/testutil.h"
#include "utilities/merge_operators.h"
namespace ROCKSDB_NAMESPACE {
class DBWideBasicTest : public DBTestBase {
protected:
explicit DBWideBasicTest()
: DBTestBase("db_wide_basic_test", /* env_do_fsync */ false) {}
};
TEST_F(DBWideBasicTest, PutEntity) {
Options options = GetDefaultOptions();
// Write a couple of wide-column entities and a plain old key-value, then read
// them back.
constexpr char first_key[] = "first";
constexpr char first_value_of_default_column[] = "hello";
WideColumns first_columns{
{kDefaultWideColumnName, first_value_of_default_column},
{"attr_name1", "foo"},
{"attr_name2", "bar"}};
constexpr char second_key[] = "second";
WideColumns second_columns{{"attr_one", "two"}, {"attr_three", "four"}};
constexpr char third_key[] = "third";
constexpr char third_value[] = "baz";
auto verify = [&]() {
const WideColumns expected_third_columns{
{kDefaultWideColumnName, third_value}};
{
PinnableSlice result;
ASSERT_OK(db_->Get(ReadOptions(), db_->DefaultColumnFamily(), first_key,
&result));
ASSERT_EQ(result, first_value_of_default_column);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
first_key, &result));
ASSERT_EQ(result.columns(), first_columns);
}
{
PinnableSlice result;
ASSERT_OK(db_->Get(ReadOptions(), db_->DefaultColumnFamily(), second_key,
&result));
ASSERT_TRUE(result.empty());
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
second_key, &result));
ASSERT_EQ(result.columns(), second_columns);
}
{
PinnableSlice result;
ASSERT_OK(db_->Get(ReadOptions(), db_->DefaultColumnFamily(), third_key,
&result));
ASSERT_EQ(result, third_value);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
third_key, &result));
ASSERT_EQ(result.columns(), expected_third_columns);
}
{
constexpr size_t num_keys = 3;
std::array<Slice, num_keys> keys{{first_key, second_key, third_key}};
std::array<PinnableSlice, num_keys> values;
std::array<Status, num_keys> statuses;
db_->MultiGet(ReadOptions(), db_->DefaultColumnFamily(), num_keys,
&keys[0], &values[0], &statuses[0]);
ASSERT_OK(statuses[0]);
ASSERT_EQ(values[0], first_value_of_default_column);
ASSERT_OK(statuses[1]);
ASSERT_TRUE(values[1].empty());
ASSERT_OK(statuses[2]);
ASSERT_EQ(values[2], third_value);
}
{
constexpr size_t num_keys = 3;
std::array<Slice, num_keys> keys{{first_key, second_key, third_key}};
std::array<PinnableWideColumns, num_keys> results;
std::array<Status, num_keys> statuses;
db_->MultiGetEntity(ReadOptions(), db_->DefaultColumnFamily(), num_keys,
&keys[0], &results[0], &statuses[0]);
ASSERT_OK(statuses[0]);
ASSERT_EQ(results[0].columns(), first_columns);
ASSERT_OK(statuses[1]);
ASSERT_EQ(results[1].columns(), second_columns);
ASSERT_OK(statuses[2]);
ASSERT_EQ(results[2].columns(), expected_third_columns);
}
{
std::unique_ptr<Iterator> iter(db_->NewIterator(ReadOptions()));
iter->SeekToFirst();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), first_key);
ASSERT_EQ(iter->value(), first_value_of_default_column);
ASSERT_EQ(iter->columns(), first_columns);
iter->Next();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), second_key);
ASSERT_TRUE(iter->value().empty());
ASSERT_EQ(iter->columns(), second_columns);
iter->Next();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), third_key);
ASSERT_EQ(iter->value(), third_value);
ASSERT_EQ(iter->columns(), expected_third_columns);
iter->Next();
ASSERT_FALSE(iter->Valid());
ASSERT_OK(iter->status());
iter->SeekToLast();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), third_key);
ASSERT_EQ(iter->value(), third_value);
ASSERT_EQ(iter->columns(), expected_third_columns);
iter->Prev();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), second_key);
ASSERT_TRUE(iter->value().empty());
ASSERT_EQ(iter->columns(), second_columns);
iter->Prev();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), first_key);
ASSERT_EQ(iter->value(), first_value_of_default_column);
ASSERT_EQ(iter->columns(), first_columns);
iter->Prev();
ASSERT_FALSE(iter->Valid());
ASSERT_OK(iter->status());
}
};
// Use the DB::PutEntity API to write the first entity
ASSERT_OK(db_->PutEntity(WriteOptions(), db_->DefaultColumnFamily(),
first_key, first_columns));
// Use WriteBatch to write the second entity
WriteBatch batch;
ASSERT_OK(
batch.PutEntity(db_->DefaultColumnFamily(), second_key, second_columns));
ASSERT_OK(db_->Write(WriteOptions(), &batch));
// Use Put to write the plain key-value
ASSERT_OK(db_->Put(WriteOptions(), db_->DefaultColumnFamily(), third_key,
third_value));
// Try reading from memtable
verify();
// Try reading after recovery
Close();
options.avoid_flush_during_recovery = true;
Reopen(options);
verify();
// Try reading from storage
ASSERT_OK(Flush());
verify();
}
TEST_F(DBWideBasicTest, PutEntityColumnFamily) {
Options options = GetDefaultOptions();
CreateAndReopenWithCF({"corinthian"}, options);
// Use the DB::PutEntity API
constexpr char first_key[] = "first";
WideColumns first_columns{{"attr_name1", "foo"}, {"attr_name2", "bar"}};
ASSERT_OK(
db_->PutEntity(WriteOptions(), handles_[1], first_key, first_columns));
// Use WriteBatch
constexpr char second_key[] = "second";
WideColumns second_columns{{"attr_one", "two"}, {"attr_three", "four"}};
WriteBatch batch;
ASSERT_OK(batch.PutEntity(handles_[1], second_key, second_columns));
ASSERT_OK(db_->Write(WriteOptions(), &batch));
}
TEST_F(DBWideBasicTest, MultiCFMultiGetEntity) {
Options options = GetDefaultOptions();
CreateAndReopenWithCF({"corinthian"}, options);
constexpr char first_key[] = "first";
WideColumns first_columns{{"attr_name1", "foo"}, {"attr_name2", "bar"}};
ASSERT_OK(db_->PutEntity(WriteOptions(), db_->DefaultColumnFamily(),
first_key, first_columns));
constexpr char second_key[] = "second";
WideColumns second_columns{{"attr_one", "two"}, {"attr_three", "four"}};
ASSERT_OK(
db_->PutEntity(WriteOptions(), handles_[1], second_key, second_columns));
constexpr size_t num_keys = 2;
std::array<ColumnFamilyHandle*, num_keys> column_families{
{db_->DefaultColumnFamily(), handles_[1]}};
std::array<Slice, num_keys> keys{{first_key, second_key}};
std::array<PinnableWideColumns, num_keys> results;
std::array<Status, num_keys> statuses;
db_->MultiGetEntity(ReadOptions(), num_keys, &column_families[0], &keys[0],
&results[0], &statuses[0]);
ASSERT_OK(statuses[0]);
ASSERT_EQ(results[0].columns(), first_columns);
ASSERT_OK(statuses[1]);
ASSERT_EQ(results[1].columns(), second_columns);
}
TEST_F(DBWideBasicTest, MergePlainKeyValue) {
Options options = GetDefaultOptions();
options.create_if_missing = true;
options.merge_operator = MergeOperators::CreateStringAppendOperator();
Reopen(options);
// Put + Merge
constexpr char first_key[] = "first";
constexpr char first_base_value[] = "hello";
constexpr char first_merge_op[] = "world";
// Delete + Merge
constexpr char second_key[] = "second";
constexpr char second_merge_op[] = "foo";
// Merge without any preceding KV
constexpr char third_key[] = "third";
constexpr char third_merge_op[] = "bar";
auto write_base = [&]() {
// Write "base" KVs: a Put for the 1st key and a Delete for the 2nd one;
// note there is no "base" KV for the 3rd
ASSERT_OK(db_->Put(WriteOptions(), db_->DefaultColumnFamily(), first_key,
first_base_value));
ASSERT_OK(
db_->Delete(WriteOptions(), db_->DefaultColumnFamily(), second_key));
};
auto write_merge = [&]() {
// Write Merge operands
ASSERT_OK(db_->Merge(WriteOptions(), db_->DefaultColumnFamily(), first_key,
first_merge_op));
ASSERT_OK(db_->Merge(WriteOptions(), db_->DefaultColumnFamily(), second_key,
second_merge_op));
ASSERT_OK(db_->Merge(WriteOptions(), db_->DefaultColumnFamily(), third_key,
third_merge_op));
};
const std::string expected_first_column(std::string(first_base_value) + "," +
first_merge_op);
const WideColumns expected_first_columns{
{kDefaultWideColumnName, expected_first_column}};
const WideColumns expected_second_columns{
{kDefaultWideColumnName, second_merge_op}};
const WideColumns expected_third_columns{
{kDefaultWideColumnName, third_merge_op}};
auto verify = [&]() {
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
first_key, &result));
ASSERT_EQ(result.columns(), expected_first_columns);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
second_key, &result));
ASSERT_EQ(result.columns(), expected_second_columns);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
third_key, &result));
ASSERT_EQ(result.columns(), expected_third_columns);
}
{
constexpr size_t num_keys = 3;
std::array<Slice, num_keys> keys{{first_key, second_key, third_key}};
std::array<PinnableWideColumns, num_keys> results;
std::array<Status, num_keys> statuses;
db_->MultiGetEntity(ReadOptions(), db_->DefaultColumnFamily(), num_keys,
&keys[0], &results[0], &statuses[0]);
ASSERT_OK(statuses[0]);
ASSERT_EQ(results[0].columns(), expected_first_columns);
ASSERT_OK(statuses[1]);
ASSERT_EQ(results[1].columns(), expected_second_columns);
ASSERT_OK(statuses[2]);
ASSERT_EQ(results[2].columns(), expected_third_columns);
}
{
std::unique_ptr<Iterator> iter(db_->NewIterator(ReadOptions()));
iter->SeekToFirst();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), first_key);
ASSERT_EQ(iter->value(), expected_first_columns[0].value());
ASSERT_EQ(iter->columns(), expected_first_columns);
iter->Next();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), second_key);
ASSERT_EQ(iter->value(), expected_second_columns[0].value());
ASSERT_EQ(iter->columns(), expected_second_columns);
iter->Next();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), third_key);
ASSERT_EQ(iter->value(), expected_third_columns[0].value());
ASSERT_EQ(iter->columns(), expected_third_columns);
iter->Next();
ASSERT_FALSE(iter->Valid());
ASSERT_OK(iter->status());
iter->SeekToLast();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), third_key);
ASSERT_EQ(iter->value(), expected_third_columns[0].value());
ASSERT_EQ(iter->columns(), expected_third_columns);
iter->Prev();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), second_key);
ASSERT_EQ(iter->value(), expected_second_columns[0].value());
ASSERT_EQ(iter->columns(), expected_second_columns);
iter->Prev();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), first_key);
ASSERT_EQ(iter->value(), expected_first_columns[0].value());
ASSERT_EQ(iter->columns(), expected_first_columns);
iter->Prev();
ASSERT_FALSE(iter->Valid());
ASSERT_OK(iter->status());
}
};
{
// Base KVs (if any) and Merge operands both in memtable (note: we take a
// snapshot in between to make sure they do not get reconciled during the
// subsequent flush)
write_base();
ManagedSnapshot snapshot(db_);
write_merge();
verify();
// Base KVs (if any) and Merge operands both in storage
ASSERT_OK(Flush());
verify();
}
// Base KVs (if any) in storage, Merge operands in memtable
DestroyAndReopen(options);
write_base();
ASSERT_OK(Flush());
write_merge();
verify();
}
TEST_F(DBWideBasicTest, MergeEntity) {
Options options = GetDefaultOptions();
options.create_if_missing = true;
const std::string delim("|");
options.merge_operator = MergeOperators::CreateStringAppendOperator(delim);
Reopen(options);
// Test Merge with two entities: one that has the default column and one that
// doesn't
constexpr char first_key[] = "first";
WideColumns first_columns{{kDefaultWideColumnName, "a"},
{"attr_name1", "foo"},
{"attr_name2", "bar"}};
constexpr char first_merge_operand[] = "bla1";
constexpr char second_key[] = "second";
WideColumns second_columns{{"attr_one", "two"}, {"attr_three", "four"}};
constexpr char second_merge_operand[] = "bla2";
auto write_base = [&]() {
// Use the DB::PutEntity API
ASSERT_OK(db_->PutEntity(WriteOptions(), db_->DefaultColumnFamily(),
first_key, first_columns));
// Use WriteBatch
WriteBatch batch;
ASSERT_OK(batch.PutEntity(db_->DefaultColumnFamily(), second_key,
second_columns));
ASSERT_OK(db_->Write(WriteOptions(), &batch));
};
auto write_merge = [&]() {
ASSERT_OK(db_->Merge(WriteOptions(), db_->DefaultColumnFamily(), first_key,
first_merge_operand));
ASSERT_OK(db_->Merge(WriteOptions(), db_->DefaultColumnFamily(), second_key,
second_merge_operand));
};
const std::string first_expected_default(first_columns[0].value().ToString() +
delim + first_merge_operand);
const std::string second_expected_default(delim + second_merge_operand);
auto verify_basic = [&]() {
WideColumns first_expected_columns{
{kDefaultWideColumnName, first_expected_default},
first_columns[1],
first_columns[2]};
WideColumns second_expected_columns{
{kDefaultWideColumnName, second_expected_default},
second_columns[0],
second_columns[1]};
{
PinnableSlice result;
ASSERT_OK(db_->Get(ReadOptions(), db_->DefaultColumnFamily(), first_key,
&result));
ASSERT_EQ(result, first_expected_default);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
first_key, &result));
ASSERT_EQ(result.columns(), first_expected_columns);
}
{
PinnableSlice result;
ASSERT_OK(db_->Get(ReadOptions(), db_->DefaultColumnFamily(), second_key,
&result));
ASSERT_EQ(result, second_expected_default);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
second_key, &result));
ASSERT_EQ(result.columns(), second_expected_columns);
}
{
constexpr size_t num_keys = 2;
std::array<Slice, num_keys> keys{{first_key, second_key}};
std::array<PinnableSlice, num_keys> values;
std::array<Status, num_keys> statuses;
db_->MultiGet(ReadOptions(), db_->DefaultColumnFamily(), num_keys,
&keys[0], &values[0], &statuses[0]);
ASSERT_EQ(values[0], first_expected_default);
ASSERT_OK(statuses[0]);
ASSERT_EQ(values[1], second_expected_default);
ASSERT_OK(statuses[1]);
}
{
constexpr size_t num_keys = 2;
std::array<Slice, num_keys> keys{{first_key, second_key}};
std::array<PinnableWideColumns, num_keys> results;
std::array<Status, num_keys> statuses;
db_->MultiGetEntity(ReadOptions(), db_->DefaultColumnFamily(), num_keys,
&keys[0], &results[0], &statuses[0]);
ASSERT_OK(statuses[0]);
ASSERT_EQ(results[0].columns(), first_expected_columns);
ASSERT_OK(statuses[1]);
ASSERT_EQ(results[1].columns(), second_expected_columns);
}
{
std::unique_ptr<Iterator> iter(db_->NewIterator(ReadOptions()));
iter->SeekToFirst();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), first_key);
ASSERT_EQ(iter->value(), first_expected_default);
ASSERT_EQ(iter->columns(), first_expected_columns);
iter->Next();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), second_key);
ASSERT_EQ(iter->value(), second_expected_default);
ASSERT_EQ(iter->columns(), second_expected_columns);
iter->Next();
ASSERT_FALSE(iter->Valid());
ASSERT_OK(iter->status());
iter->SeekToLast();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), second_key);
ASSERT_EQ(iter->value(), second_expected_default);
ASSERT_EQ(iter->columns(), second_expected_columns);
iter->Prev();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
ASSERT_EQ(iter->key(), first_key);
ASSERT_EQ(iter->value(), first_expected_default);
ASSERT_EQ(iter->columns(), first_expected_columns);
iter->Prev();
ASSERT_FALSE(iter->Valid());
ASSERT_OK(iter->status());
}
};
auto verify_merge_ops_pre_compaction = [&]() {
constexpr size_t num_merge_operands = 2;
GetMergeOperandsOptions get_merge_opts;
get_merge_opts.expected_max_number_of_operands = num_merge_operands;
{
std::array<PinnableSlice, num_merge_operands> merge_operands;
int number_of_operands = 0;
ASSERT_OK(db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(),
first_key, &merge_operands[0],
&get_merge_opts, &number_of_operands));
ASSERT_EQ(number_of_operands, num_merge_operands);
ASSERT_EQ(merge_operands[0], first_columns[0].value());
ASSERT_EQ(merge_operands[1], first_merge_operand);
}
{
std::array<PinnableSlice, num_merge_operands> merge_operands;
int number_of_operands = 0;
ASSERT_OK(db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(),
second_key, &merge_operands[0],
&get_merge_opts, &number_of_operands));
ASSERT_EQ(number_of_operands, num_merge_operands);
ASSERT_TRUE(merge_operands[0].empty());
ASSERT_EQ(merge_operands[1], second_merge_operand);
}
};
auto verify_merge_ops_post_compaction = [&]() {
constexpr size_t num_merge_operands = 1;
GetMergeOperandsOptions get_merge_opts;
get_merge_opts.expected_max_number_of_operands = num_merge_operands;
{
std::array<PinnableSlice, num_merge_operands> merge_operands;
int number_of_operands = 0;
ASSERT_OK(db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(),
first_key, &merge_operands[0],
&get_merge_opts, &number_of_operands));
ASSERT_EQ(number_of_operands, num_merge_operands);
ASSERT_EQ(merge_operands[0], first_expected_default);
}
{
std::array<PinnableSlice, num_merge_operands> merge_operands;
int number_of_operands = 0;
ASSERT_OK(db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(),
second_key, &merge_operands[0],
&get_merge_opts, &number_of_operands));
ASSERT_EQ(number_of_operands, num_merge_operands);
ASSERT_EQ(merge_operands[0], second_expected_default);
}
};
{
// Base KVs and Merge operands both in memtable (note: we take a snapshot in
// between to make sure they do not get reconciled during the subsequent
// flush)
write_base();
ManagedSnapshot snapshot(db_);
write_merge();
verify_basic();
verify_merge_ops_pre_compaction();
// Base KVs and Merge operands both in storage
ASSERT_OK(Flush());
verify_basic();
verify_merge_ops_pre_compaction();
}
// Base KVs in storage, Merge operands in memtable
DestroyAndReopen(options);
write_base();
ASSERT_OK(Flush());
write_merge();
verify_basic();
verify_merge_ops_pre_compaction();
// Flush and compact
ASSERT_OK(Flush());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), /* begin */ nullptr,
/* end */ nullptr));
verify_basic();
verify_merge_ops_post_compaction();
}
TEST_F(DBWideBasicTest, CompactionFilter) {
Options options = GetDefaultOptions();
options.create_if_missing = true;
// Wide-column entity with default column
constexpr char first_key[] = "first";
WideColumns first_columns{{kDefaultWideColumnName, "a"},
{"attr_name1", "foo"},
{"attr_name2", "bar"}};
WideColumns first_columns_uppercase{{kDefaultWideColumnName, "A"},
{"attr_name1", "FOO"},
{"attr_name2", "BAR"}};
// Wide-column entity without default column
constexpr char second_key[] = "second";
WideColumns second_columns{{"attr_one", "two"}, {"attr_three", "four"}};
WideColumns second_columns_uppercase{{"attr_one", "TWO"},
{"attr_three", "FOUR"}};
// Plain old key-value
constexpr char last_key[] = "last";
constexpr char last_value[] = "baz";
constexpr char last_value_uppercase[] = "BAZ";
auto write = [&] {
ASSERT_OK(db_->PutEntity(WriteOptions(), db_->DefaultColumnFamily(),
first_key, first_columns));
ASSERT_OK(db_->PutEntity(WriteOptions(), db_->DefaultColumnFamily(),
second_key, second_columns));
ASSERT_OK(Flush());
ASSERT_OK(db_->Put(WriteOptions(), db_->DefaultColumnFamily(), last_key,
last_value));
ASSERT_OK(Flush());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), /* begin */ nullptr,
/* end */ nullptr));
};
// Test a compaction filter that keeps all entries
{
class KeepFilter : public CompactionFilter {
public:
Decision FilterV3(
int /* level */, const Slice& /* key */, ValueType /* value_type */,
const Slice* /* existing_value */,
const WideColumns* /* existing_columns */,
std::string* /* new_value */,
std::vector<std::pair<std::string, std::string>>* /* new_columns */,
std::string* /* skip_until */) const override {
return Decision::kKeep;
}
const char* Name() const override { return "KeepFilter"; }
};
KeepFilter filter;
options.compaction_filter = &filter;
DestroyAndReopen(options);
write();
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
first_key, &result));
ASSERT_EQ(result.columns(), first_columns);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
second_key, &result));
ASSERT_EQ(result.columns(), second_columns);
}
// Note: GetEntity should return an entity with a single default column,
// since last_key is a plain key-value
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
last_key, &result));
WideColumns expected_columns{{kDefaultWideColumnName, last_value}};
ASSERT_EQ(result.columns(), expected_columns);
}
}
// Test a compaction filter that removes all entries
{
class RemoveFilter : public CompactionFilter {
public:
Decision FilterV3(
int /* level */, const Slice& /* key */, ValueType /* value_type */,
const Slice* /* existing_value */,
const WideColumns* /* existing_columns */,
std::string* /* new_value */,
std::vector<std::pair<std::string, std::string>>* /* new_columns */,
std::string* /* skip_until */) const override {
return Decision::kRemove;
}
const char* Name() const override { return "RemoveFilter"; }
};
RemoveFilter filter;
options.compaction_filter = &filter;
DestroyAndReopen(options);
write();
{
PinnableWideColumns result;
ASSERT_TRUE(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
first_key, &result)
.IsNotFound());
}
{
PinnableWideColumns result;
ASSERT_TRUE(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
second_key, &result)
.IsNotFound());
}
{
PinnableWideColumns result;
ASSERT_TRUE(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
last_key, &result)
.IsNotFound());
}
}
// Test a compaction filter that changes the values of entries to uppercase.
// The new entry is always a plain key-value; if the existing entry is a
// wide-column entity, only the value of its first column is kept.
{
class ChangeValueFilter : public CompactionFilter {
public:
Decision FilterV3(
int /* level */, const Slice& /* key */, ValueType value_type,
const Slice* existing_value, const WideColumns* existing_columns,
std::string* new_value,
std::vector<std::pair<std::string, std::string>>* /* new_columns */,
std::string* /* skip_until */) const override {
assert(new_value);
auto upper = [](const std::string& str) {
std::string result(str);
for (char& c : result) {
c = static_cast<char>(std::toupper(static_cast<unsigned char>(c)));
}
return result;
};
if (value_type == ValueType::kWideColumnEntity) {
assert(existing_columns);
if (!existing_columns->empty()) {
*new_value = upper(existing_columns->front().value().ToString());
}
} else {
assert(existing_value);
*new_value = upper(existing_value->ToString());
}
return Decision::kChangeValue;
}
const char* Name() const override { return "ChangeValueFilter"; }
};
ChangeValueFilter filter;
options.compaction_filter = &filter;
DestroyAndReopen(options);
write();
// Note: GetEntity should return entities with a single default column,
// since all entries are now plain key-values
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
first_key, &result));
WideColumns expected_columns{
{kDefaultWideColumnName, first_columns_uppercase[0].value()}};
ASSERT_EQ(result.columns(), expected_columns);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
second_key, &result));
WideColumns expected_columns{
{kDefaultWideColumnName, second_columns_uppercase[0].value()}};
ASSERT_EQ(result.columns(), expected_columns);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
last_key, &result));
WideColumns expected_columns{
{kDefaultWideColumnName, last_value_uppercase}};
ASSERT_EQ(result.columns(), expected_columns);
}
}
// Test a compaction filter that changes the column values of entries to
// uppercase. The new entry is always a wide-column entity; if the existing
// entry is a plain key-value, it is converted to a wide-column entity with a
// single default column.
{
class ChangeEntityFilter : public CompactionFilter {
public:
Decision FilterV3(
int /* level */, const Slice& /* key */, ValueType value_type,
const Slice* existing_value, const WideColumns* existing_columns,
std::string* /* new_value */,
std::vector<std::pair<std::string, std::string>>* new_columns,
std::string* /* skip_until */) const override {
assert(new_columns);
auto upper = [](const std::string& str) {
std::string result(str);
for (char& c : result) {
c = static_cast<char>(std::toupper(static_cast<unsigned char>(c)));
}
return result;
};
if (value_type == ValueType::kWideColumnEntity) {
assert(existing_columns);
for (const auto& column : *existing_columns) {
new_columns->emplace_back(column.name().ToString(),
upper(column.value().ToString()));
}
} else {
assert(existing_value);
new_columns->emplace_back(kDefaultWideColumnName.ToString(),
upper(existing_value->ToString()));
}
return Decision::kChangeWideColumnEntity;
}
const char* Name() const override { return "ChangeEntityFilter"; }
};
ChangeEntityFilter filter;
options.compaction_filter = &filter;
DestroyAndReopen(options);
write();
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
first_key, &result));
ASSERT_EQ(result.columns(), first_columns_uppercase);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
second_key, &result));
ASSERT_EQ(result.columns(), second_columns_uppercase);
}
{
PinnableWideColumns result;
ASSERT_OK(db_->GetEntity(ReadOptions(), db_->DefaultColumnFamily(),
last_key, &result));
WideColumns expected_columns{
{kDefaultWideColumnName, last_value_uppercase}};
ASSERT_EQ(result.columns(), expected_columns);
}
}
}
TEST_F(DBWideBasicTest, PutEntityTimestampError) {
// Note: timestamps are currently not supported
Options options = GetDefaultOptions();
options.comparator = test::BytewiseComparatorWithU64TsWrapper();
ColumnFamilyHandle* handle = nullptr;
ASSERT_OK(db_->CreateColumnFamily(options, "corinthian", &handle));
std::unique_ptr<ColumnFamilyHandle> handle_guard(handle);
// Use the DB::PutEntity API
constexpr char first_key[] = "first";
WideColumns first_columns{{"attr_name1", "foo"}, {"attr_name2", "bar"}};
ASSERT_TRUE(db_->PutEntity(WriteOptions(), handle, first_key, first_columns)
.IsInvalidArgument());
// Use WriteBatch
constexpr char second_key[] = "second";
WideColumns second_columns{{"doric", "column"}, {"ionic", "column"}};
WriteBatch batch;
ASSERT_TRUE(
batch.PutEntity(handle, second_key, second_columns).IsInvalidArgument());
ASSERT_OK(db_->Write(WriteOptions(), &batch));
}
TEST_F(DBWideBasicTest, PutEntitySerializationError) {
// Make sure duplicate columns are caught
Options options = GetDefaultOptions();
// Use the DB::PutEntity API
constexpr char first_key[] = "first";
WideColumns first_columns{{"foo", "bar"}, {"foo", "baz"}};
ASSERT_TRUE(db_->PutEntity(WriteOptions(), db_->DefaultColumnFamily(),
first_key, first_columns)
.IsCorruption());
// Use WriteBatch
constexpr char second_key[] = "second";
WideColumns second_columns{{"column", "doric"}, {"column", "ionic"}};
WriteBatch batch;
ASSERT_TRUE(
batch.PutEntity(db_->DefaultColumnFamily(), second_key, second_columns)
.IsCorruption());
ASSERT_OK(db_->Write(WriteOptions(), &batch));
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
RegisterCustomObjects(argc, argv);
return RUN_ALL_TESTS();
}