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/*
* Copyright (C) 2008-2015 TrinityCore <http://www.trinitycore.org/>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef APPENDER_H
#define APPENDER_H
#include <unordered_map>
#include <stdexcept>
#include <string>
#include <time.h>
#include <type_traits>
#include <vector>
#include <utility>
#include "Define.h"
// Values assigned have their equivalent in enum ACE_Log_Priority
enum LogLevel
{
LOG_LEVEL_DISABLED = 0,
LOG_LEVEL_TRACE = 1,
LOG_LEVEL_DEBUG = 2,
LOG_LEVEL_INFO = 3,
LOG_LEVEL_WARN = 4,
LOG_LEVEL_ERROR = 5,
LOG_LEVEL_FATAL = 6
};
const uint8 MaxLogLevels = 6;
enum AppenderType
{
APPENDER_NONE,
APPENDER_CONSOLE,
APPENDER_FILE,
APPENDER_DB
};
enum AppenderFlags
{
APPENDER_FLAGS_NONE = 0x00,
APPENDER_FLAGS_PREFIX_TIMESTAMP = 0x01,
APPENDER_FLAGS_PREFIX_LOGLEVEL = 0x02,
APPENDER_FLAGS_PREFIX_LOGFILTERTYPE = 0x04,
APPENDER_FLAGS_USE_TIMESTAMP = 0x08, // only used by FileAppender
APPENDER_FLAGS_MAKE_FILE_BACKUP = 0x10 // only used by FileAppender
};
struct LogMessage
{
LogMessage(LogLevel _level, std::string const& _type, std::string&& _text)
: level(_level), type(_type), text(std::forward<std::string>(_text)), mtime(time(NULL))
{ }
LogMessage(LogMessage const& /*other*/) = delete;
LogMessage& operator=(LogMessage const& /*other*/) = delete;
static std::string getTimeStr(time_t time);
std::string getTimeStr();
LogLevel const level;
std::string const type;
std::string const text;
std::string prefix;
std::string param1;
time_t mtime;
///@ Returns size of the log message content in bytes
uint32 Size() const
{
return static_cast<uint32>(prefix.size() + text.size());
}
};
class Appender
{
public:
Appender(uint8 _id, std::string const& name, LogLevel level = LOG_LEVEL_DISABLED, AppenderFlags flags = APPENDER_FLAGS_NONE);
virtual ~Appender();
uint8 getId() const;
std::string const& getName() const;
virtual AppenderType getType() const = 0;
LogLevel getLogLevel() const;
AppenderFlags getFlags() const;
void setLogLevel(LogLevel);
void write(LogMessage* message);
static const char* getLogLevelString(LogLevel level);
virtual void setRealmId(uint32 /*realmId*/) { }
private:
virtual void _write(LogMessage const* /*message*/) = 0;
uint8 id;
std::string name;
LogLevel level;
AppenderFlags flags;
};
typedef std::unordered_map<uint8, Appender*> AppenderMap;
typedef std::vector<char const*> ExtraAppenderArgs;
typedef Appender*(*AppenderCreatorFn)(uint8 id, std::string const& name, LogLevel level, AppenderFlags flags, ExtraAppenderArgs extraArgs);
typedef std::unordered_map<uint8, AppenderCreatorFn> AppenderCreatorMap;
template<class AppenderImpl>
Appender* CreateAppender(uint8 id, std::string const& name, LogLevel level, AppenderFlags flags, ExtraAppenderArgs extraArgs)
{
return new AppenderImpl(id, name, level, flags, std::forward<ExtraAppenderArgs>(extraArgs));
}
class InvalidAppenderArgsException : public std::length_error
{
public:
using std::length_error::length_error;
explicit InvalidAppenderArgsException(std::string const& message) : length_error(message) { }
};
#endif
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