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#include <Common/NamedCollections/NamedCollectionConfiguration.h>
#include <Poco/Util/XMLConfiguration.h>
#include <Common/Exception.h>
#include <Common/SettingsChanges.h>
#include <Common/FieldVisitorToString.h>
#include <magic_enum.hpp>
namespace DB
{
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
extern const int NOT_IMPLEMENTED;
}
namespace NamedCollectionConfiguration
{
bool hasConfigValue(
const Poco::Util::AbstractConfiguration & config,
const std::string & path)
{
return config.has(path);
}
template <typename T> T getConfigValue(
const Poco::Util::AbstractConfiguration & config,
const std::string & path)
{
return getConfigValueOrDefault<T>(config, path);
}
template <typename T> T getConfigValueOrDefault(
const Poco::Util::AbstractConfiguration & config,
const std::string & path,
const T * default_value)
{
if (!config.has(path))
{
if (!default_value)
throw Exception(ErrorCodes::BAD_ARGUMENTS, "No such key `{}`", path);
return *default_value;
}
try
{
if constexpr (std::is_same_v<T, String>)
return config.getString(path);
else if constexpr (std::is_same_v<T, UInt64>)
return config.getUInt64(path);
else if constexpr (std::is_same_v<T, Int64>)
return config.getInt64(path);
else if constexpr (std::is_same_v<T, Float64>)
return config.getDouble(path);
else if constexpr (std::is_same_v<T, bool>)
return config.getBool(path);
else
throw Exception(
ErrorCodes::NOT_IMPLEMENTED,
"Unsupported type in getConfigValueOrDefault(). "
"Supported types are String, UInt64, Int64, Float64, bool");
}
catch (const Poco::SyntaxException &)
{
throw Exception(
ErrorCodes::BAD_ARGUMENTS,
"Cannot extract {} from {}",
magic_enum::enum_name(Field::TypeToEnum<NearestFieldType<T>>::value),
path);
}
}
template<typename T> void setConfigValue(
Poco::Util::AbstractConfiguration & config,
const std::string & path,
const T & value,
bool update)
{
if (!update && config.has(path))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Key `{}` already exists", path);
if constexpr (std::is_same_v<T, String>)
config.setString(path, value);
else if constexpr (std::is_same_v<T, UInt64>)
config.setUInt64(path, value);
else if constexpr (std::is_same_v<T, Int64>)
config.setInt64(path, value);
else if constexpr (std::is_same_v<T, Float64>)
config.setDouble(path, value);
else if constexpr (std::is_same_v<T, bool>)
config.setBool(path, value);
else
throw Exception(
ErrorCodes::NOT_IMPLEMENTED,
"Unsupported type in setConfigValue(). "
"Supported types are String, UInt64, Int64, Float64, bool");
}
template <typename T> void copyConfigValue(
const Poco::Util::AbstractConfiguration & from_config,
const std::string & from_path,
Poco::Util::AbstractConfiguration & to_config,
const std::string & to_path)
{
if (!from_config.has(from_path))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "No such key `{}`", from_path);
if (to_config.has(to_path))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Key `{}` already exists", to_path);
if constexpr (std::is_same_v<T, String>)
to_config.setString(to_path, from_config.getString(from_path));
else if constexpr (std::is_same_v<T, UInt64>)
to_config.setUInt64(to_path, from_config.getUInt64(from_path));
else if constexpr (std::is_same_v<T, Int64>)
to_config.setInt64(to_path, from_config.getInt64(from_path));
else if constexpr (std::is_same_v<T, Float64>)
to_config.setDouble(to_path, from_config.getDouble(from_path));
else
throw Exception(
ErrorCodes::NOT_IMPLEMENTED,
"Unsupported type in copyConfigValue(). "
"Supported types are String, UInt64, Int64, Float64");
}
void removeConfigValue(
Poco::Util::AbstractConfiguration & config,
const std::string & path)
{
if (!config.has(path))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "No such key `{}`", path);
config.remove(path);
}
ConfigurationPtr createEmptyConfiguration(const std::string & root_name)
{
using DocumentPtr = Poco::AutoPtr<Poco::XML::Document>;
using ElementPtr = Poco::AutoPtr<Poco::XML::Element>;
DocumentPtr xml_document(new Poco::XML::Document());
ElementPtr root_element(xml_document->createElement(root_name));
xml_document->appendChild(root_element);
ConfigurationPtr config(new Poco::Util::XMLConfiguration(xml_document));
return config;
}
ConfigurationPtr createConfiguration(const std::string & root_name, const SettingsChanges & settings)
{
namespace Configuration = NamedCollectionConfiguration;
auto config = Configuration::createEmptyConfiguration(root_name);
for (const auto & [name, value] : settings)
Configuration::setConfigValue<String>(*config, name, convertFieldToString(value));
return config;
}
void listKeys(
const Poco::Util::AbstractConfiguration & config,
std::queue<std::string> enumerate_paths,
std::set<std::string, std::less<>> & result,
ssize_t depth)
{
if (enumerate_paths.empty())
enumerate_paths.push("");
const bool do_finish = depth >= 0 && --depth < 0;
auto initial_paths = std::move(enumerate_paths);
enumerate_paths = {};
while (!initial_paths.empty())
{
auto path = initial_paths.front();
initial_paths.pop();
Poco::Util::AbstractConfiguration::Keys keys;
if (path.empty())
config.keys(keys);
else
config.keys(path, keys);
if (keys.empty())
{
result.insert(path);
}
else if (do_finish)
{
for (const auto & key : keys)
result.emplace(path.empty() ? key : path + '.' + key);
}
else
{
for (const auto & key : keys)
enumerate_paths.emplace(path.empty() ? key : path + '.' + key);
}
}
if (enumerate_paths.empty())
return;
listKeys(config, enumerate_paths, result, depth);
}
template String getConfigValue<String>(const Poco::Util::AbstractConfiguration & config,
const std::string & path);
template UInt64 getConfigValue<UInt64>(const Poco::Util::AbstractConfiguration & config,
const std::string & path);
template Int64 getConfigValue<Int64>(const Poco::Util::AbstractConfiguration & config,
const std::string & path);
template Float64 getConfigValue<Float64>(const Poco::Util::AbstractConfiguration & config,
const std::string & path);
template bool getConfigValue<bool>(const Poco::Util::AbstractConfiguration & config,
const std::string & path);
template String getConfigValueOrDefault<String>(const Poco::Util::AbstractConfiguration & config,
const std::string & path, const String * default_value);
template UInt64 getConfigValueOrDefault<UInt64>(const Poco::Util::AbstractConfiguration & config,
const std::string & path, const UInt64 * default_value);
template Int64 getConfigValueOrDefault<Int64>(const Poco::Util::AbstractConfiguration & config,
const std::string & path, const Int64 * default_value);
template Float64 getConfigValueOrDefault<Float64>(const Poco::Util::AbstractConfiguration & config,
const std::string & path, const Float64 * default_value);
template bool getConfigValueOrDefault<bool>(const Poco::Util::AbstractConfiguration & config,
const std::string & path, const bool * default_value);
template void setConfigValue<String>(Poco::Util::AbstractConfiguration & config,
const std::string & path, const String & value, bool update);
template void setConfigValue<UInt64>(Poco::Util::AbstractConfiguration & config,
const std::string & path, const UInt64 & value, bool update);
template void setConfigValue<Int64>(Poco::Util::AbstractConfiguration & config,
const std::string & path, const Int64 & value, bool update);
template void setConfigValue<Float64>(Poco::Util::AbstractConfiguration & config,
const std::string & path, const Float64 & value, bool update);
template void setConfigValue<bool>(Poco::Util::AbstractConfiguration & config,
const std::string & path, const bool & value, bool update);
template void copyConfigValue<String>(const Poco::Util::AbstractConfiguration & from_config, const std::string & from_path,
Poco::Util::AbstractConfiguration & to_config, const std::string & to_path);
template void copyConfigValue<UInt64>(const Poco::Util::AbstractConfiguration & from_config, const std::string & from_path,
Poco::Util::AbstractConfiguration & to_config, const std::string & to_path);
template void copyConfigValue<Int64>(const Poco::Util::AbstractConfiguration & from_config, const std::string & from_path,
Poco::Util::AbstractConfiguration & to_config, const std::string & to_path);
template void copyConfigValue<Float64>(const Poco::Util::AbstractConfiguration & from_config, const std::string & from_path,
Poco::Util::AbstractConfiguration & to_config, const std::string & to_path);
template void copyConfigValue<bool>(const Poco::Util::AbstractConfiguration & from_config, const std::string & from_path,
Poco::Util::AbstractConfiguration & to_config, const std::string & to_path);
}
}
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