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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "priorityconverter.h"
#include <map>
namespace storage {
PriorityConverter::PriorityConverter()
: _mapping(),
_reverse_mapping()
{
init_static_priority_mappings();
}
PriorityConverter::~PriorityConverter() = default;
void
PriorityConverter::init_static_priority_mappings()
{
// Defaults from `stor-prioritymapping` config
constexpr uint8_t highest = 50;
constexpr uint8_t very_high = 60;
constexpr uint8_t high_1 = 70;
constexpr uint8_t high_2 = 80;
constexpr uint8_t high_3 = 90;
constexpr uint8_t normal_1 = 100;
constexpr uint8_t normal_2 = 110;
constexpr uint8_t normal_3 = 120;
constexpr uint8_t normal_4 = 130;
constexpr uint8_t normal_5 = 140;
constexpr uint8_t normal_6 = 150;
constexpr uint8_t low_1 = 160;
constexpr uint8_t low_2 = 170;
constexpr uint8_t low_3 = 180;
constexpr uint8_t very_low = 190;
constexpr uint8_t lowest = 200;
_mapping[documentapi::Priority::PRI_HIGHEST] = highest;
_mapping[documentapi::Priority::PRI_VERY_HIGH] = very_high;
_mapping[documentapi::Priority::PRI_HIGH_1] = high_1;
_mapping[documentapi::Priority::PRI_HIGH_2] = high_2;
_mapping[documentapi::Priority::PRI_HIGH_3] = high_3;
_mapping[documentapi::Priority::PRI_NORMAL_1] = normal_1;
_mapping[documentapi::Priority::PRI_NORMAL_2] = normal_2;
_mapping[documentapi::Priority::PRI_NORMAL_3] = normal_3;
_mapping[documentapi::Priority::PRI_NORMAL_4] = normal_4;
_mapping[documentapi::Priority::PRI_NORMAL_5] = normal_5;
_mapping[documentapi::Priority::PRI_NORMAL_6] = normal_6;
_mapping[documentapi::Priority::PRI_LOW_1] = low_1;
_mapping[documentapi::Priority::PRI_LOW_2] = low_2;
_mapping[documentapi::Priority::PRI_LOW_3] = low_3;
_mapping[documentapi::Priority::PRI_VERY_LOW] = very_low;
_mapping[documentapi::Priority::PRI_LOWEST] = lowest;
std::map<uint8_t, documentapi::Priority::Value> reverse_map_helper;
reverse_map_helper[highest] = documentapi::Priority::PRI_HIGHEST;
reverse_map_helper[very_high] = documentapi::Priority::PRI_VERY_HIGH;
reverse_map_helper[high_1] = documentapi::Priority::PRI_HIGH_1;
reverse_map_helper[high_2] = documentapi::Priority::PRI_HIGH_2;
reverse_map_helper[high_3] = documentapi::Priority::PRI_HIGH_3;
reverse_map_helper[normal_1] = documentapi::Priority::PRI_NORMAL_1;
reverse_map_helper[normal_2] = documentapi::Priority::PRI_NORMAL_2;
reverse_map_helper[normal_3] = documentapi::Priority::PRI_NORMAL_3;
reverse_map_helper[normal_4] = documentapi::Priority::PRI_NORMAL_4;
reverse_map_helper[normal_5] = documentapi::Priority::PRI_NORMAL_5;
reverse_map_helper[normal_6] = documentapi::Priority::PRI_NORMAL_6;
reverse_map_helper[low_1] = documentapi::Priority::PRI_LOW_1;
reverse_map_helper[low_2] = documentapi::Priority::PRI_LOW_2;
reverse_map_helper[low_3] = documentapi::Priority::PRI_LOW_3;
reverse_map_helper[very_low] = documentapi::Priority::PRI_VERY_LOW;
reverse_map_helper[lowest] = documentapi::Priority::PRI_LOWEST;
// Precompute a 1-1 LUT to avoid having to lower-bound lookup values in a fixed map
_reverse_mapping.resize(256);
for (size_t i = 0; i < 256; ++i) {
auto iter = reverse_map_helper.lower_bound(static_cast<uint8_t>(i));
_reverse_mapping[i] = (iter != reverse_map_helper.cend()) ? iter->second : documentapi::Priority::PRI_LOWEST;
}
}
uint8_t
PriorityConverter::toStoragePriority(documentapi::Priority::Value documentApiPriority) const noexcept
{
const auto index = static_cast<uint32_t>(documentApiPriority);
if (index >= PRI_ENUM_SIZE) {
return 255;
}
return _mapping[index];
}
} // storage
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