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moved pattern_formatter to details

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This commit is contained in:
gabi
2014-10-14 04:29:52 +03:00
parent 001f57279e
commit ef330729cb
5 changed files with 21 additions and 21 deletions
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283
include/c11log/details/pattern_formatter.h Normal file
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#pragma once
#include <string>
#include <chrono>
#include <memory>
#include <vector>
#include "../formatter.h"
#include "log_msg.h"
#include "fast_oss.h"
namespace c11log
{
namespace details {
class pattern_appender
{
public:
virtual void append(const details::log_msg& msg, details::fast_oss& oss) = 0;
};
// log name appender
class name_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss << msg.logger_name;
}
};
// log level appender
class level_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss << level::to_str(msg.level);
}
};
///////////////////////////////////////////////////////////////////////
// Date time pattern appenders
///////////////////////////////////////////////////////////////////////
// year - 4 digit
class Y_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.put_int(msg.tm_time.tm_year + 1900, 4);
}
};
// year - 2 digit
class y_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.put_int(msg.tm_time.tm_year, 2);
}
};
// month 1-12
class m_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.put_int(msg.tm_time.tm_mon + 1, 2);
}
};
// day of month 1-31
class d_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.put_int(msg.tm_time.tm_mday, 2);
}
};
// hours in 24 format 0-23
class H_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.put_int(msg.tm_time.tm_hour, 2);
}
};
// hours in 12 format 1-12
class I_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.put_int((msg.tm_time.tm_hour + 1) % 1, 2);
}
};
// ninutes 0-59
class M_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.put_int(msg.tm_time.tm_min, 2);
}
};
// seconds 0-59
class S_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.put_int(msg.tm_time.tm_sec, 2);
}
};
// milliseconds
class e_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
auto duration = msg.time.time_since_epoch();
int millis = static_cast<int>(std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000);
oss.put_int(millis, 3);
}
};
class t_appender :public pattern_appender
{
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.put_str(msg.raw);
}
};
class ch_appender :public pattern_appender
{
public:
explicit ch_appender(char ch) : _ch(ch)
{}
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss.putc(_ch);
}
private:
char _ch;
};
class str_appender :public pattern_appender
{
public:
str_appender()
{}
void add_ch(char ch)
{
_str += ch;
}
void append(const details::log_msg& msg, details::fast_oss& oss) override
{
oss << _str;
}
private:
std::string _str;
};
class pattern_formatter : public formatter
{
public:
explicit pattern_formatter(const std::string& pattern);
pattern_formatter(const pattern_formatter&) = delete;
void format(details::log_msg& msg) override;
private:
const std::string _pattern;
std::vector<std::unique_ptr<details::pattern_appender>> _appenders;
void handle_flag(char flag);
void compile_pattern(const std::string& pattern);
};
}
}
inline c11log::details::pattern_formatter::pattern_formatter(const std::string& pattern)
{
compile_pattern(pattern);
}
inline void c11log::details::pattern_formatter::compile_pattern(const std::string& pattern)
{
auto end = pattern.end();
for (auto it = pattern.begin(); it != end; ++it)
{
if (*it == '%')
{
if (++it != end)
handle_flag(*it);
else
return;
}
else
{
// chars not following the % sign should be displayed as is
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::ch_appender(*it)));
}
}
}
inline void c11log::details::pattern_formatter::handle_flag(char flag)
{
switch (flag)
{
// logger name
case 'n':
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::name_appender()));
break;
// message log level
case 'l':
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::level_appender()));
break;
// message text
case('t') :
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::t_appender()));
break;
// year
case('Y') :
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::Y_appender()));
break;
// year 2 digits
case('y') :
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::y_appender()));
break;
// month
case('m') :
// minute
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::m_appender()));
break;
// day in month
case('d') :
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::d_appender()));
break;
// hour (24)
case('H') :
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::H_appender()));
break;
// hour (12)
case('I') :
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::I_appender()));
break;
// minutes
case('M') :
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::M_appender()));
break;
// seconds
case('S') :
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::S_appender()));
break;
// milliseconds part
case('e'):
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::e_appender()));
break;
// % sign
case('%') :
_appenders.push_back(std::unique_ptr<details::pattern_appender>(new details::ch_appender('%')));
break;
}
}
inline void c11log::details::pattern_formatter::format(details::log_msg& msg)
{
details::fast_oss oss;
for (auto &appender : _appenders)
{
appender->append(msg, oss);
}
oss.write(details::os::eol(), details::os::eol_size());
msg.formatted = oss.str();
}