| /** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #ifndef LIBMINIFI_INCLUDE_CONTROLLERS_NETWORKPRIORITIZERSERVICE_H_ |
| #define LIBMINIFI_INCLUDE_CONTROLLERS_NETWORKPRIORITIZERSERVICE_H_ |
| |
| #include <iostream> |
| #include <memory> |
| #include <limits> |
| #include "core/Resource.h" |
| #include "utils/StringUtils.h" |
| #include "io/validation.h" |
| #include "controllers/SSLContextService.h" |
| #include "core/controller/ControllerService.h" |
| #include "core/logging/LoggerConfiguration.h" |
| #include "ThreadManagementService.h" |
| #include "io/NetworkPrioritizer.h" |
| |
| namespace org { |
| namespace apache { |
| namespace nifi { |
| namespace minifi { |
| namespace controllers { |
| |
| /** |
| * Purpose: Network prioritizer for selecting network interfaces through the flow configuration. |
| */ |
| class NetworkPrioritizerService : public core::controller::ControllerService, public minifi::io::NetworkPrioritizer, public std::enable_shared_from_this<NetworkPrioritizerService> { |
| public: |
| explicit NetworkPrioritizerService(const std::string &name, const std::string &id) |
| : ControllerService(name, id), |
| enabled_(false), |
| max_throughput_(std::numeric_limits<uint64_t>::max()), |
| max_payload_(std::numeric_limits<uint64_t>::max()), |
| tokens_per_ms(2), |
| tokens_(1000), |
| timestamp_(0), |
| bytes_per_token_(0), |
| verify_interfaces_(true), |
| logger_(logging::LoggerFactory<NetworkPrioritizerService>::getLogger()) { |
| } |
| |
| explicit NetworkPrioritizerService(const std::string &name, uuid_t uuid = 0) |
| : ControllerService(name, uuid), |
| enabled_(false), |
| max_throughput_(std::numeric_limits<uint64_t>::max()), |
| max_payload_(std::numeric_limits<uint64_t>::max()), |
| tokens_per_ms(2), |
| tokens_(1000), |
| timestamp_(0), |
| bytes_per_token_(0), |
| verify_interfaces_(true), |
| logger_(logging::LoggerFactory<NetworkPrioritizerService>::getLogger()) { |
| } |
| |
| explicit NetworkPrioritizerService(const std::string &name, const std::shared_ptr<Configure> &configuration) |
| : NetworkPrioritizerService(name, nullptr) { |
| setConfiguration(configuration); |
| initialize(); |
| } |
| |
| static core::Property NetworkControllers; |
| static core::Property MaxThroughput; |
| static core::Property MaxPayload; |
| static core::Property VerifyInterfaces; |
| static core::Property DefaultPrioritizer; |
| |
| void initialize(); |
| |
| void yield(); |
| |
| bool isRunning(); |
| |
| bool isWorkAvailable(); |
| |
| virtual void onEnable(); |
| |
| virtual io::NetworkInterface &&getInterface(uint32_t size); |
| |
| protected: |
| |
| std::string get_nearest_interface(const std::vector<std::string> &ifcs); |
| |
| bool interface_online(const std::string &ifc); |
| |
| std::vector<std::string> getInterfaces(uint32_t size); |
| |
| bool sufficient_tokens(uint32_t size); |
| |
| virtual void reduce_tokens(uint32_t size); |
| |
| bool enabled_; |
| |
| uint64_t max_throughput_; |
| |
| uint64_t max_payload_; |
| |
| std::vector<std::string> network_controllers_; |
| |
| int tokens_per_ms; |
| |
| /** |
| * Using a variation of the token bucket algorithm. |
| * every millisecond 1 token will be added to the bucket. max throughput will define a maximum rate per second. |
| * |
| * When a request for data arrives to send and not enough tokens exist, we will restrict sending through the interfaces defined here. |
| * |
| * When a request arrives tokens will be decremented. We will compute the amount of data that can be sent per token from the configuration |
| * of max_throughput_ |
| */ |
| uint32_t tokens_; |
| |
| std::mutex token_mutex_; |
| |
| uint64_t timestamp_; |
| |
| uint32_t bytes_per_token_; |
| |
| bool verify_interfaces_; |
| |
| private: |
| std::shared_ptr<logging::Logger> logger_; |
| }; |
| |
| REGISTER_RESOURCE(NetworkPrioritizerService); |
| |
| } /* namespace controllers */ |
| } /* namespace minifi */ |
| } /* namespace nifi */ |
| } /* namespace apache */ |
| } /* namespace org */ |
| |
| #endif /* LIBMINIFI_INCLUDE_CONTROLLERS_NETWORKPRIORITIZERSERVICE_H_ */ |