| /** |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include <algorithm> |
| #include <chrono> |
| #include <memory> |
| #include <optional> |
| #include <string> |
| #include <thread> |
| #include <utility> |
| #include <vector> |
| |
| #include "core/logging/LoggerConfiguration.h" |
| #include "utils/gsl.h" |
| #include "rdkafka.h" |
| |
| namespace org { |
| namespace apache { |
| namespace nifi { |
| namespace minifi { |
| namespace utils { |
| |
| struct SSL_data { |
| std::string ca_loc; |
| std::string cert_loc; |
| std::string key_loc; |
| std::string key_pw; |
| }; |
| |
| enum class KafkaEncoding { |
| UTF8, |
| HEX |
| }; |
| |
| struct rd_kafka_conf_deleter { |
| void operator()(rd_kafka_conf_t* ptr) const noexcept { rd_kafka_conf_destroy(ptr); } |
| }; |
| |
| struct rd_kafka_producer_deleter { |
| void operator()(rd_kafka_t* ptr) const noexcept { |
| rd_kafka_flush(ptr, 10000 /* ms */); // Matching the wait time of KafkaConnection.cpp |
| // If concerned, we could log potential errors here: |
| // if (RD_KAFKA_RESP_ERR__TIMED_OUT == flush_ret) { |
| // std::cerr << "Deleting producer failed: time-out while trying to flush" << std::endl; |
| // } |
| rd_kafka_destroy(ptr); |
| } |
| }; |
| |
| struct rd_kafka_consumer_deleter { |
| void operator()(rd_kafka_t* ptr) const noexcept { |
| rd_kafka_consumer_close(ptr); |
| rd_kafka_destroy(ptr); |
| } |
| }; |
| |
| struct rd_kafka_topic_partition_list_deleter { |
| void operator()(rd_kafka_topic_partition_list_t* ptr) const noexcept { rd_kafka_topic_partition_list_destroy(ptr); } |
| }; |
| |
| struct rd_kafka_topic_conf_deleter { |
| void operator()(rd_kafka_topic_conf_t* ptr) const noexcept { rd_kafka_topic_conf_destroy(ptr); } |
| }; |
| struct rd_kafka_topic_deleter { |
| void operator()(rd_kafka_topic_t* ptr) const noexcept { rd_kafka_topic_destroy(ptr); } |
| }; |
| |
| struct rd_kafka_message_deleter { |
| void operator()(rd_kafka_message_t* ptr) const noexcept { rd_kafka_message_destroy(ptr); } |
| }; |
| |
| struct rd_kafka_headers_deleter { |
| void operator()(rd_kafka_headers_t* ptr) const noexcept { rd_kafka_headers_destroy(ptr); } |
| }; |
| |
| template <typename T> |
| void kafka_headers_for_each(const rd_kafka_headers_t& headers, T key_value_handle) { |
| const char *key; // Null terminated, not to be freed |
| const void *value; |
| std::size_t size; |
| for (std::size_t i = 0; RD_KAFKA_RESP_ERR_NO_ERROR == rd_kafka_header_get_all(&headers, i, &key, &value, &size); ++i) { |
| key_value_handle(std::string(key), gsl::span<const char>(static_cast<const char*>(value), size)); |
| } |
| } |
| |
| void setKafkaConfigurationField(rd_kafka_conf_t& configuration, const std::string& field_name, const std::string& value); |
| void print_topics_list(core::logging::Logger& logger, rd_kafka_topic_partition_list_t& kf_topic_partition_list); |
| void print_kafka_message(const rd_kafka_message_t& rkmessage, core::logging::Logger& logger); |
| std::string get_encoded_string(const std::string& input, KafkaEncoding encoding); |
| std::optional<std::string> get_encoded_message_key(const rd_kafka_message_t& message, KafkaEncoding encoding); |
| |
| } // namespace utils |
| } // namespace minifi |
| } // namespace nifi |
| } // namespace apache |
| } // namespace org |