Files
scylladb/cdc/cdc_options.hh
Juliusz Stasiewicz 5a8741a1ca cdc: Throw when ALTERing cdc options without "enabled":"..."
The problem was that such a command:
```
alter table ks.cf with cdc={'ttl': 120};
```
would assume that "enabled" parameter is the default ("false") and,
in effect, disable CDC on that table. This commit forces the user
to specify that key.

Fixes #6475

Closes #9720
2021-12-07 17:37:44 +02:00

85 lines
2.4 KiB
C++

/*
* Copyright (C) 2019-present ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <map>
#include <optional>
#include <seastar/core/sstring.hh>
#include "seastarx.hh"
namespace cdc {
enum class delta_mode : uint8_t {
keys,
full,
};
/**
* (for now only pre-) image collection mode.
* Stating how much info to record.
* off == none
* on == changed columns
* full == all (changed and unmodified columns)
*/
enum class image_mode : uint8_t {
off,
on,
full,
};
std::ostream& operator<<(std::ostream& os, delta_mode);
std::ostream& operator<<(std::ostream& os, image_mode);
class options final {
std::optional<bool> _enabled;
image_mode _preimage = image_mode::off;
bool _postimage = false;
delta_mode _delta_mode = delta_mode::full;
int _ttl = 86400; // 24h in seconds
public:
options() = default;
options(const std::map<sstring, sstring>& map);
std::map<sstring, sstring> to_map() const;
sstring to_sstring() const;
bool enabled() const { return _enabled.value_or(false); }
bool is_enabled_set() const { return _enabled.has_value(); }
bool preimage() const { return _preimage != image_mode::off; }
bool full_preimage() const { return _preimage == image_mode::full; }
bool postimage() const { return _postimage; }
delta_mode get_delta_mode() const { return _delta_mode; }
void set_delta_mode(delta_mode m) { _delta_mode = m; }
int ttl() const { return _ttl; }
void enabled(bool b) { _enabled = b; }
void preimage(bool b) { preimage(b ? image_mode::on : image_mode::off); }
void preimage(image_mode m) { _preimage = m; }
void postimage(bool b) { _postimage = b; }
void ttl(int v) { _ttl = v; }
bool operator==(const options& o) const;
bool operator!=(const options& o) const;
};
} // namespace cdc