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79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
#pragma once
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#include <string>
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#include <time.h>
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#include <Poco/Net/StreamSocket.h>
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#include <Poco/Net/SocketStream.h>
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#include <Poco/Util/Application.h>
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#include <base/logger_useful.h>
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/// пишет в Graphite данные в формате
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/// path value timestamp\n
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/// path может иметь любую вложенность. Директории разделяются с помощью "."
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/// у нас принят следующий формат path - root_path.server_name.sub_path.key
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class GraphiteWriter
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{
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public:
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GraphiteWriter(const std::string & config_name, const std::string & sub_path = "");
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template <typename T> using KeyValuePair = std::pair<std::string, T>;
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template <typename T> using KeyValueVector = std::vector<KeyValuePair<T>>;
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template <typename T> void write(const std::string & key, const T & value,
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time_t timestamp = 0, const std::string & custom_root_path = "")
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{
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writeImpl(KeyValuePair<T>{ key, value }, timestamp, custom_root_path);
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}
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template <typename T> void write(const KeyValueVector<T> & key_val_vec,
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time_t timestamp = 0, const std::string & custom_root_path = "")
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{
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writeImpl(key_val_vec, timestamp, custom_root_path);
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}
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/// возвращает путь root_path.server_name
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static std::string getPerServerPath(const std::string & server_name, const std::string & root_path = "one_min");
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private:
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template <typename T>
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void writeImpl(const T & data, time_t timestamp, const std::string & custom_root_path)
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{
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if (!timestamp)
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timestamp = time(nullptr);
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try
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{
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Poco::Net::SocketAddress socket_address(host, port);
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Poco::Net::StreamSocket socket(socket_address);
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socket.setSendTimeout(Poco::Timespan(timeout * 1000000));
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Poco::Net::SocketStream str(socket);
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out(str, data, timestamp, custom_root_path);
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}
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catch (const Poco::Exception & e)
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{
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LOG_WARNING(&Poco::Util::Application::instance().logger(), "Fail to write to Graphite {}:{}. e.what() = {}, e.message() = {}", host, port, e.what(), e.message());
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}
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}
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template <typename T>
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void out(std::ostream & os, const KeyValuePair<T> & key_val, time_t timestamp, const std::string & custom_root_path)
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{
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os << (custom_root_path.empty() ? root_path : custom_root_path) <<
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'.' << key_val.first << ' ' << key_val.second << ' ' << timestamp << '\n';
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}
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template <typename T>
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void out(std::ostream & os, const KeyValueVector<T> & key_val_vec, time_t timestamp, const std::string & custom_root_path)
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{
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for (const auto & key_val : key_val_vec)
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out(os, key_val, timestamp, custom_root_path);
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}
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std::string root_path;
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int port;
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std::string host;
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double timeout;
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};
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