Appender.h

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/*
* This file is part of Project SkyFire https://www.projectskyfire.org.
* See LICENSE.md file for Copyright information
*/
 
#ifndef APPENDER_H
#define APPENDER_H
 
#include "Define.h"
#include "Dynamic/UnorderedMap.h"
#include <time.h>
 
#include <string>
 
enum class 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 class 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 const& _text)
        : level(_level), type(_type), text(_text), mtime(time(NULL))
    { }
 
    static std::string getTimeStr(time_t time);
    std::string getTimeStr();
 
    LogLevel level;
    std::string type;
    std::string text;
    std::string prefix;
    std::string param1;
    time_t mtime;

    uint32 Size() const
    {
        return static_cast<uint32>(prefix.size() + text.size());
    }
};
 
class Appender
{
public:
    Appender(uint8 _id, std::string const& name, AppenderType type = AppenderType::APPENDER_NONE, LogLevel level = LogLevel::LOG_LEVEL_DISABLED, AppenderFlags flags = APPENDER_FLAGS_NONE);
    virtual ~Appender();
 
    uint8 getId() const;
    std::string const& getName() const;
    AppenderType getType() const;
    LogLevel getLogLevel() const;
    AppenderFlags getFlags() const;
 
    void setLogLevel(LogLevel);
    void write(LogMessage& message);
    static const char* getLogLevelString(LogLevel level);
 
private:
    virtual void _write(LogMessage const& /*message*/) = 0;
 
    uint8 id;
    std::string name;
    AppenderType type;
    LogLevel level = LogLevel::LOG_LEVEL_DISABLED;
    AppenderFlags flags;
};
 
typedef UNORDERED_MAP<uint8, Appender*> AppenderMap;
 
#endif