ClickHouse/src/Storages/Hive/HiveSettings.cpp

#include <Common/config.h>

#if USE_HDFS
#include <Common/Exception.h>
#include <Parsers/ASTSetQuery.h>
#include <Parsers/ASTCreateQuery.h>
#include <Parsers/ASTFunction.h>
#include <Storages/Hive/HiveSettings.h>

namespace DB
{
namespace ErrorCodes
{
    extern const int UNKNOWN_SETTING;
}

IMPLEMENT_SETTINGS_TRAITS(HiveSettingsTraits, LIST_OF_HIVE_SETTINGS)

void HiveSettings::loadFromConfig(const String & config_elem, const Poco::Util::AbstractConfiguration & config)
{
    if (!config.has(config_elem))
        return;

    Poco::Util::AbstractConfiguration::Keys config_keys;
    config.keys(config_elem, config_keys);

    try
    {
        for (const String & key : config_keys)
            set(key, config.getString(config_elem + "." + key));
    }
    catch (Exception & e)
    {
        if (e.code() == ErrorCodes::UNKNOWN_SETTING)
            e.addMessage("in MergeTree config");
        throw;
    }
}

void HiveSettings::loadFromQuery(ASTStorage & storage_def)
{
    if (storage_def.settings)
    {
        try
        {
            applyChanges(storage_def.settings->changes);
        }
        catch (Exception & e)
        {
            if (e.code() == ErrorCodes::UNKNOWN_SETTING)
                e.addMessage("for storage " + storage_def.engine->name);
            throw;
        }
    }
    else
    {
        auto settings_ast = std::make_shared<ASTSetQuery>();
        settings_ast->is_standalone = false;
        storage_def.set(storage_def.settings, settings_ast);
    }
}

}
#endif