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caching_options.cc
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caching_options.cc
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/*
* Copyright (C) 2021-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/>.
*/
#include "caching_options.hh"
#include <boost/lexical_cast.hpp>
#include <map>
#include "exceptions/exceptions.hh"
#include "utils/rjson.hh"
caching_options::caching_options(sstring k, sstring r, bool enabled)
: _key_cache(k), _row_cache(r), _enabled(enabled) {
if ((k != "ALL") && (k != "NONE")) {
throw exceptions::configuration_exception("Invalid key value: " + k);
}
if ((r == "ALL") || (r == "NONE")) {
return;
} else {
try {
boost::lexical_cast<unsigned long>(r);
} catch (boost::bad_lexical_cast& e) {
throw exceptions::configuration_exception("Invalid key value: " + r);
}
}
}
caching_options::caching_options()
: _key_cache(default_key), _row_cache(default_row) {
}
std::map<sstring, sstring>
caching_options::to_map() const {
std::map<sstring, sstring> res = {{ "keys", _key_cache },
{ "rows_per_partition", _row_cache }};
if (!_enabled) {
res.insert({"enabled", "false"});
}
return res;
}
sstring
caching_options::to_sstring() const {
return rjson::print(rjson::from_string_map(to_map()));
}
caching_options
caching_options::get_disabled_caching_options() {
return caching_options("NONE", "NONE", false);
}
caching_options
caching_options::from_map(const std::map<sstring, sstring>& map) {
sstring k = default_key;
sstring r = default_row;
bool e = true;
for (auto& p : map) {
if (p.first == "keys") {
k = p.second;
} else if (p.first == "rows_per_partition") {
r = p.second;
} else if (p.first == "enabled") {
e = p.second == "true";
} else {
throw exceptions::configuration_exception(format("Invalid caching option: {}", p.first));
}
}
return caching_options(k, r, e);
}
caching_options
caching_options::from_sstring(const sstring& str) {
return from_map(rjson::parse_to_map<std::map<sstring, sstring>>(str));
}
bool
caching_options::operator==(const caching_options& other) const {
return _key_cache == other._key_cache && _row_cache == other._row_cache
&& _enabled == other._enabled;
}
bool
caching_options::operator!=(const caching_options& other) const {
return !(*this == other);
}