Line data    Source code

       1              : /**
       2              :  * Copyright (c) 2025 Huawei Technologies Co., Ltd.
       3              :  * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
       4              :  * CANN Open Software License Agreement Version 2.0 (the "License").
       5              :  * Please refer to the License for details. You may not use this file except in compliance with the License.
       6              :  * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
       7              :  * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
       8              :  * See LICENSE in the root of the software repository for the full text of the License.
       9              :  */
      10              : #include "strategy/hash_strategy.h"
      11              : #include "dgw_client.h"
      12              : #include "common/bqs_log.h"
      13              : #include "entity_manager.h"
      14              : #include "strategy/strategy_manager.h"
      15              : 
      16              : namespace dgw {
      17            4 : FsmStatus HashStrategy::Search(const uint32_t groupId, const uint64_t transId, std::vector<EntityPtr> &selEntities,
      18              :     const uint32_t resIndex)
      19              : {
      20            4 :     const std::vector<EntityPtr> &entitiesInGroup = EntityManager::Instance(resIndex).GetEntitiesInGroup(groupId);
      21            4 :     if (entitiesInGroup.empty()) {
      22            1 :         DGW_LOG_ERROR("No entities in group, groupId:%u, transId:%lu", groupId, transId);
      23            1 :         return FsmStatus::FSM_FAILED;
      24              :     }
      25            3 :     if (transId == 0UL) {
      26            1 :         DGW_LOG_ERROR("transId is invalid, transId:%lu", transId);
      27            1 :         return FsmStatus::FSM_FAILED;
      28              :     }
      29              : 
      30            2 :     const uint64_t idx = transId % entitiesInGroup.size();
      31            2 :     auto &selEntity = entitiesInGroup[idx];
      32            2 :     selEntities.push_back(selEntity);
      33            2 :     DGW_LOG_DEBUG("Select entity id:%u type:%s from group:%u success, index:%lu.",
      34              :         selEntity->GetId(), selEntity->GetTypeDesc().c_str(), groupId, idx);
      35            2 :     return FsmStatus::FSM_SUCCESS;
      36              : }
      37              : 
      38              : REGISTER_STRATEGY(HASH, HashStrategy);
      39              : }