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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| #pragma once | ||
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| #include <nano/lib/stats.hpp> | ||
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| #include <boost/format.hpp> | ||
| #include <boost/property_tree/json_parser.hpp> | ||
| #include <boost/property_tree/ptree.hpp> | ||
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| namespace nano | ||
| { | ||
| /** JSON sink. The resulting JSON object is provided as both a property_tree::ptree (to_object) and a string (to_string) */ | ||
| class stat_json_writer : public nano::stat_log_sink | ||
| { | ||
| boost::property_tree::ptree tree; | ||
| boost::property_tree::ptree entries; | ||
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| public: | ||
| std::ostream & out () override | ||
| { | ||
| return sstr; | ||
| } | ||
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| void begin () override | ||
| { | ||
| tree.clear (); | ||
| } | ||
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| void write_header (std::string const & header, std::chrono::system_clock::time_point & walltime) override | ||
| { | ||
| std::time_t now = std::chrono::system_clock::to_time_t (walltime); | ||
| tm tm = *localtime (&now); | ||
| tree.put ("type", header); | ||
| tree.put ("created", tm_to_string (tm)); | ||
| } | ||
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| void write_counter_entry (tm & tm, std::string const & type, std::string const & detail, std::string const & dir, uint64_t value) override | ||
| { | ||
| boost::property_tree::ptree entry; | ||
| entry.put ("time", boost::format ("%02d:%02d:%02d") % tm.tm_hour % tm.tm_min % tm.tm_sec); | ||
| entry.put ("type", type); | ||
| entry.put ("detail", detail); | ||
| entry.put ("dir", dir); | ||
| entry.put ("value", value); | ||
| entries.push_back (std::make_pair ("", entry)); | ||
| } | ||
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| void finalize () override | ||
| { | ||
| tree.add_child ("entries", entries); | ||
| } | ||
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| std::string to_string () override | ||
| { | ||
| boost::property_tree::write_json (sstr, tree); | ||
| return sstr.str (); | ||
| } | ||
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| // WARNING: This method moves the ptree out of the object, leaving it in an undefined state | ||
| boost::property_tree::ptree && to_ptree () | ||
| { | ||
| return std::move (tree); | ||
| } | ||
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| private: | ||
| std::ostringstream sstr; | ||
| }; | ||
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| /** File sink with rotation support. This writes one counter per line and does not include histogram values. */ | ||
| class stat_file_writer : public nano::stat_log_sink | ||
| { | ||
| public: | ||
| std::ofstream log; | ||
| std::string filename; | ||
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| explicit stat_file_writer (std::string const & filename) : | ||
| filename (filename) | ||
| { | ||
| log.open (filename.c_str (), std::ofstream::out); | ||
| } | ||
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| ~stat_file_writer () override | ||
| { | ||
| log.close (); | ||
| } | ||
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| std::ostream & out () override | ||
| { | ||
| return log; | ||
| } | ||
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| void write_header (std::string const & header, std::chrono::system_clock::time_point & walltime) override | ||
| { | ||
| std::time_t now = std::chrono::system_clock::to_time_t (walltime); | ||
| tm tm = *localtime (&now); | ||
| log << header << "," << boost::format ("%04d.%02d.%02d %02d:%02d:%02d") % (1900 + tm.tm_year) % (tm.tm_mon + 1) % tm.tm_mday % tm.tm_hour % tm.tm_min % tm.tm_sec << std::endl; | ||
| } | ||
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| void write_counter_entry (tm & tm, std::string const & type, std::string const & detail, std::string const & dir, uint64_t value) override | ||
| { | ||
| log << boost::format ("%02d:%02d:%02d") % tm.tm_hour % tm.tm_min % tm.tm_sec << "," << type << "," << detail << "," << dir << "," << value << std::endl; | ||
| } | ||
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| void rotate () override | ||
| { | ||
| log.close (); | ||
| log.open (filename.c_str (), std::ofstream::out); | ||
| log_entries = 0; | ||
| } | ||
| }; | ||
| } |
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