CharacterCache Class Reference

#include "CharacterCache.h"

Public Member Functions
	CharacterCache () noexcept=default
	~CharacterCache () noexcept=default
void	LoadCharacterCacheStorage ()
	Loads several pieces of information on server startup with the GUID There is no further database query necessary. These are a number of methods that work into the calling function.
void	RefreshCacheEntry (uint32 lowGuid)
void	AddCharacterCacheEntry (ObjectGuid const &guid, uint32 accountId, std::string const &name, uint8 gender, uint8 race, uint8 playerClass, uint8 level)
void	DeleteCharacterCacheEntry (ObjectGuid const &guid, std::string const &name)
void	UpdateCharacterData (ObjectGuid const &guid, std::string const &name, Optional< uint8 > gender={}, Optional< uint8 > race={})
void	UpdateCharacterLevel (ObjectGuid const &guid, uint8 level)
void	UpdateCharacterAccountId (ObjectGuid const &guid, uint32 accountId)
void	UpdateCharacterGuildId (ObjectGuid const &guid, ObjectGuid::LowType guildId)
void	UpdateCharacterArenaTeamId (ObjectGuid const &guid, uint8 slot, uint32 arenaTeamId)
void	UpdateCharacterMailCount (ObjectGuid const &guid, int8 count, bool update=false)
void	DecreaseCharacterMailCount (ObjectGuid const &guid)
void	IncreaseCharacterMailCount (ObjectGuid const &guid)
bool	HasCharacterCacheEntry (ObjectGuid const &guid) const
CharacterCacheEntry const *	GetCharacterCacheByGuid (ObjectGuid const &guid) const
CharacterCacheEntry const *	GetCharacterCacheByName (std::string const &name) const
void	UpdateCharacterGroup (ObjectGuid const &guid, ObjectGuid groupGUID)
void	ClearCharacterGroup (ObjectGuid const &guid)
ObjectGuid	GetCharacterGuidByName (std::string const &name) const
bool	GetCharacterNameByGuid (ObjectGuid guid, std::string &name) const
uint32	GetCharacterTeamByGuid (ObjectGuid guid) const
uint32	GetCharacterAccountIdByGuid (ObjectGuid guid) const
uint32	GetCharacterAccountIdByName (std::string const &name) const
uint8	GetCharacterLevelByGuid (ObjectGuid guid) const
ObjectGuid::LowType	GetCharacterGuildIdByGuid (ObjectGuid guid) const
uint32	GetCharacterArenaTeamIdByGuid (ObjectGuid guid, uint8 type) const
ObjectGuid	GetCharacterGroupGuidByGuid (ObjectGuid guid) const

Static Public Member Functions
static CharacterCache *	instance ()

Detailed Description

Constructor & Destructor Documentation

CharacterCache()

CharacterCache::CharacterCache ( )

defaultnoexcept

~CharacterCache()

CharacterCache::~CharacterCache ( )

defaultnoexcept

Member Function Documentation

AddCharacterCacheEntry()

void CharacterCache::AddCharacterCacheEntry	(	ObjectGuid const &	guid,
		uint32	accountId,
		std::string const &	name,
		uint8	gender,
		uint8	race,
		uint8	playerClass,
		uint8	level
	)

{
    CharacterCacheEntry& data = _characterCacheStore[guid];
    data.Guid = guid;
    data.Name = name;
    data.AccountId = accountId;
    data.Race = race;
    data.Sex = gender;
    data.Class = playerClass;
    data.Level = level;
    data.GuildId = 0;                           // Will be set in guild loading or guild setting
    for (uint8 i = 0; i < MAX_ARENA_SLOT; ++i)
    {
        data.ArenaTeamId[i] = 0; // Will be set in arena teams loading
    }
 
    // Fill Name to Guid Store
    _characterCacheByNameStore[name] = &data;
}

References CharacterCacheEntry::AccountId, CharacterCacheEntry::ArenaTeamId, CharacterCacheEntry::Class, CharacterCacheEntry::Guid, CharacterCacheEntry::GuildId, CharacterCacheEntry::Level, MAX_ARENA_SLOT, CharacterCacheEntry::Name, CharacterCacheEntry::Race, and CharacterCacheEntry::Sex.

Referenced by LoadCharacterCacheStorage(), and RefreshCacheEntry().

ClearCharacterGroup()

void CharacterCache::ClearCharacterGroup ( ObjectGuid const &  guid )

inline

{ UpdateCharacterGroup(guid, ObjectGuid::Empty); };

References ObjectGuid::Empty.

DecreaseCharacterMailCount()

void CharacterCache::DecreaseCharacterMailCount ( ObjectGuid const &  guid )

inline

{ UpdateCharacterMailCount(guid, -1); };

DeleteCharacterCacheEntry()

void CharacterCache::DeleteCharacterCacheEntry	(	ObjectGuid const &	guid,
		std::string const &	name
	)

{
    _characterCacheStore.erase(guid);
    _characterCacheByNameStore.erase(name);
}

Referenced by RefreshCacheEntry().

GetCharacterAccountIdByGuid()

uint32 CharacterCache::GetCharacterAccountIdByGuid

(

ObjectGuid

guid

)

const

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return 0;
    }
 
    return itr->second.AccountId;
}

GetCharacterAccountIdByName()

uint32 CharacterCache::GetCharacterAccountIdByName

(

std::string const &

name

)

const

{
    auto itr = _characterCacheByNameStore.find(name);
    if (itr != _characterCacheByNameStore.end())
    {
        return itr->second->AccountId;
    }
 
    return 0;
}

GetCharacterArenaTeamIdByGuid()

uint32 CharacterCache::GetCharacterArenaTeamIdByGuid	(	ObjectGuid	guid,
		uint8	type
	)		const

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return 0;
    }
 
    return itr->second.ArenaTeamId[type];
}

GetCharacterCacheByGuid()

CharacterCacheEntry const * CharacterCache::GetCharacterCacheByGuid

(

ObjectGuid const &

guid

)

const

{
    auto itr = _characterCacheStore.find(guid);
    if (itr != _characterCacheStore.end())
    {
        return &itr->second;
    }
 
    return nullptr;
}

GetCharacterCacheByName()

CharacterCacheEntry const * CharacterCache::GetCharacterCacheByName

(

std::string const &

name

)

const

{
    auto itr = _characterCacheByNameStore.find(name);
    if (itr != _characterCacheByNameStore.end())
    {
        return itr->second;
    }
 
    return nullptr;
}

GetCharacterGroupGuidByGuid()

ObjectGuid CharacterCache::GetCharacterGroupGuidByGuid

(

ObjectGuid

guid

)

const

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return ObjectGuid::Empty;
    }
 
    return itr->second.GroupGuid;
}

References ObjectGuid::Empty.

GetCharacterGuidByName()

ObjectGuid CharacterCache::GetCharacterGuidByName

(

std::string const &

name

)

const

{
    auto itr = _characterCacheByNameStore.find(name);
    if (itr != _characterCacheByNameStore.end())
    {
        return itr->second->Guid;
    }
 
    return ObjectGuid::Empty;
}

References ObjectGuid::Empty.

GetCharacterGuildIdByGuid()

ObjectGuid::LowType CharacterCache::GetCharacterGuildIdByGuid

(

ObjectGuid

guid

)

const

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return 0;
    }
 
    return itr->second.GuildId;
}

GetCharacterLevelByGuid()

uint8 CharacterCache::GetCharacterLevelByGuid

(

ObjectGuid

guid

)

const

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return 0;
    }
 
    return itr->second.Level;
}

GetCharacterNameByGuid()

bool CharacterCache::GetCharacterNameByGuid	(	ObjectGuid	guid,
		std::string &	name
	)		const

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return false;
    }
 
    name = itr->second.Name;
    return true;
}

GetCharacterTeamByGuid()

uint32 CharacterCache::GetCharacterTeamByGuid

(

ObjectGuid

guid

)

const

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return 0;
    }
 
    return Player::TeamIdForRace(itr->second.Race);
}

References Player::TeamIdForRace().

HasCharacterCacheEntry()

bool CharacterCache::HasCharacterCacheEntry

(

ObjectGuid const &

guid

)

const

{
    return _characterCacheStore.find(guid) != _characterCacheStore.end();
}

IncreaseCharacterMailCount()

void CharacterCache::IncreaseCharacterMailCount ( ObjectGuid const &  guid )

inline

{ UpdateCharacterMailCount(guid, 1); };

instance()

CharacterCache * CharacterCache::instance ( )

static

{
    static CharacterCache instance;
    return &instance;
}

References instance().

Referenced by instance().

LoadCharacterCacheStorage()

void CharacterCache::LoadCharacterCacheStorage

(

)

Loads several pieces of information on server startup with the GUID There is no further database query necessary. These are a number of methods that work into the calling function.

Parameters

guid	Requires a guid to call

Returns

Name, Gender, Race, Class and Level of player character Example Usage:

CharacterCacheEntry const* characterInfo = sCharacterCache->GetCharacterCacheByGuid(GUID);
if (!characterInfo)
    return;
 
std::string playerName = characterInfo->Name;
uint8 playerGender = characterInfo->Sex;
uint8 playerRace = characterInfo->Race;
uint8 playerClass = characterInfo->Class;
uint8 playerLevel = characterInfo->Level;

{
    _characterCacheStore.clear();
    uint32 oldMSTime = getMSTime();
 
    QueryResult result = CharacterDatabase.Query("SELECT guid, name, account, race, gender, class, level FROM characters");
    if (!result)
    {
        LOG_INFO("server.loading", "No character name data loaded, empty query!");
        return;
    }
 
    do
    {
        Field* fields = result->Fetch();
        AddCharacterCacheEntry(ObjectGuid::Create<HighGuid::Player>(fields[0].Get<uint32>()) /*guid*/, fields[2].Get<uint32>() /*account*/, fields[1].Get<std::string>() /*name*/,
            fields[4].Get<uint8>() /*gender*/, fields[3].Get<uint8>() /*race*/, fields[5].Get<uint8>() /*class*/, fields[6].Get<uint8>() /*level*/);
    } while (result->NextRow());
 
    QueryResult mailCountResult = CharacterDatabase.Query("SELECT receiver, COUNT(receiver) FROM mail GROUP BY receiver");
    if (mailCountResult)
    {
        do
        {
            Field* fields = mailCountResult->Fetch();
            UpdateCharacterMailCount(ObjectGuid(HighGuid::Player, fields[0].Get<uint32>()), static_cast<int8>(fields[1].Get<uint64>()), true);
        } while (mailCountResult->NextRow());
    }
 
    LOG_INFO("server.loading", ">> Loaded Character Infos For {} Characters in {} ms", _characterCacheStore.size(), GetMSTimeDiffToNow(oldMSTime));
    LOG_INFO("server.loading", " ");
}

References AddCharacterCacheEntry(), CharacterDatabase, getMSTime(), GetMSTimeDiffToNow(), LOG_INFO, and UpdateCharacterMailCount().

RefreshCacheEntry()

void CharacterCache::RefreshCacheEntry

(

uint32

lowGuid

)

{
    QueryResult result = CharacterDatabase.Query("SELECT guid, name, account, race, gender, class, level FROM characters WHERE guid = {}", lowGuid);
    if (!result)
    {
        return;
    }
 
    do
    {
        Field* fields = result->Fetch();
        DeleteCharacterCacheEntry(ObjectGuid::Create<HighGuid::Player>(lowGuid), fields[1].Get<std::string>());
        AddCharacterCacheEntry(ObjectGuid::Create<HighGuid::Player>(fields[0].Get<uint32>()) /*guid*/, fields[2].Get<uint32>() /*account*/, fields[1].Get<std::string>() /*name*/, fields[4].Get<uint8>() /*gender*/, fields[3].Get<uint8>() /*race*/, fields[5].Get<uint8>() /*class*/, fields[6].Get<uint8>() /*level*/);
    } while (result->NextRow());
 
    QueryResult mailCountResult = CharacterDatabase.Query("SELECT receiver, COUNT(receiver) FROM mail WHERE receiver = {} GROUP BY receiver", lowGuid);
    if (mailCountResult)
    {
        do
        {
            Field* fields = mailCountResult->Fetch();
            UpdateCharacterMailCount(ObjectGuid(HighGuid::Player, fields[0].Get<uint32>()), static_cast<int8>(fields[1].Get<uint64>()), true);
        } while (mailCountResult->NextRow());
    }
}

References AddCharacterCacheEntry(), CharacterDatabase, DeleteCharacterCacheEntry(), and UpdateCharacterMailCount().

UpdateCharacterAccountId()

void CharacterCache::UpdateCharacterAccountId	(	ObjectGuid const &	guid,
		uint32	accountId
	)

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return;
    }
 
    itr->second.AccountId = accountId;
}

UpdateCharacterArenaTeamId()

void CharacterCache::UpdateCharacterArenaTeamId	(	ObjectGuid const &	guid,
		uint8	slot,
		uint32	arenaTeamId
	)

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return;
    }
 
    itr->second.ArenaTeamId[slot] = arenaTeamId;
}

UpdateCharacterData()

void CharacterCache::UpdateCharacterData	(	ObjectGuid const &	guid,
		std::string const &	name,
		Optional< uint8 >	gender = {},
		Optional< uint8 >	race = {}
	)

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
        return;
 
    std::string oldName = itr->second.Name;
    itr->second.Name = name;
 
    if (gender)
    {
        itr->second.Sex = *gender;
    }
 
    if (race)
    {
        itr->second.Race = *race;
    }
 
    //WorldPackets::Misc::InvalidatePlayer packet(guid);
    //sWorld->SendGlobalMessage(packet.Write());
 
    // Correct name -> pointer storage
    _characterCacheByNameStore.erase(oldName);
    _characterCacheByNameStore[name] = &itr->second;
}

UpdateCharacterGroup()

void CharacterCache::UpdateCharacterGroup	(	ObjectGuid const &	guid,
		ObjectGuid	groupGUID
	)

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return;
    }
 
    itr->second.GroupGuid = groupGUID;
}

UpdateCharacterGuildId()

void CharacterCache::UpdateCharacterGuildId	(	ObjectGuid const &	guid,
		ObjectGuid::LowType	guildId
	)

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return;
    }
 
    itr->second.GuildId = guildId;
}

UpdateCharacterLevel()

void CharacterCache::UpdateCharacterLevel	(	ObjectGuid const &	guid,
		uint8	level
	)

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return;
    }
 
    itr->second.Level = level;
}

UpdateCharacterMailCount()

void CharacterCache::UpdateCharacterMailCount	(	ObjectGuid const &	guid,
		int8	count,
		bool	update = false
	)

{
    auto itr = _characterCacheStore.find(guid);
    if (itr == _characterCacheStore.end())
    {
        return;
    }
 
    if (update)
    {
        itr->second.MailCount = count;
        return;
    }
 
    // Let's be safe and prevent overflow
    if (!itr->second.MailCount && count < 0)
    {
        return;
    }
 
    itr->second.MailCount += count;
}

Referenced by LoadCharacterCacheStorage(), and RefreshCacheEntry().