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Refactor controller to use split-out DB for better performance and less ugly.

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This commit is contained in:
Adam Ierymenko 2016-11-04 15:18:31 -07:00
parent ab2ccb094a
commit b03c7b2f30
6 changed files with 224 additions and 173 deletions
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36
controller/JSONDB.hpp
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@ -41,13 +41,21 @@ public:
JSONDB(const std::string &basePath) :
_basePath(basePath)
{
this->_reloadAll(_basePath);
_reload(_basePath);
}
inline void reload()
{
_db.clear();
_reload(_basePath);
}
bool put(const std::string &n,const nlohmann::json &obj);
inline bool put(const std::string &n1,const std::string &n2,const nlohmann::json &obj) { return this->put((n1 + "/" + n2),obj); }
inline bool put(const std::string &n1,const std::string &n2,const std::string &n3,const nlohmann::json &obj) { return this->put((n1 + "/" + n2 + "/" + n3),obj); }
inline bool put(const std::string &n1,const std::string &n2,const std::string &n3,const std::string &n4,const nlohmann::json &obj) { return this->put((n1 + "/" + n2 + "/" + n3 + "/" + n4),obj); }
inline bool put(const std::string &n1,const std::string &n2,const std::string &n3,const std::string &n4,const std::string &n5,const nlohmann::json &obj) { return this->put((n1 + "/" + n2 + "/" + n3 + "/" + n4 + "/" + n5),obj); }
const nlohmann::json &get(const std::string &n,unsigned long maxSinceCheck = 0);
@ -56,27 +64,37 @@ public:
inline const nlohmann::json &get(const std::string &n1,const std::string &n2,const std::string &n3,const std::string &n4,unsigned long maxSinceCheck = 0) { return this->get((n1 + "/" + n2 + "/" + n3 + "/" + n4),maxSinceCheck); }
inline const nlohmann::json &get(const std::string &n1,const std::string &n2,const std::string &n3,const std::string &n4,const std::string &n5,unsigned long maxSinceCheck = 0) { return this->get((n1 + "/" + n2 + "/" + n3 + "/" + n4 + "/" + n5),maxSinceCheck); }
void erase(const std::string &n);
inline void erase(const std::string &n1,const std::string &n2) { this->erase(n1 + "/" + n2); }
inline void erase(const std::string &n1,const std::string &n2,const std::string &n3) { this->erase(n1 + "/" + n2 + "/" + n3); }
inline void erase(const std::string &n1,const std::string &n2,const std::string &n3,const std::string &n4) { this->erase(n1 + "/" + n2 + "/" + n3 + "/" + n4); }
inline void erase(const std::string &n1,const std::string &n2,const std::string &n3,const std::string &n4,const std::string &n5) { this->erase(n1 + "/" + n2 + "/" + n3 + "/" + n4 + "/" + n5); }
template<typename F>
inline void each(F func,unsigned long maxSinceCheck = 0)
inline void filter(const std::string &prefix,unsigned long maxSinceCheck,F func)
{
const uint64_t now = OSUtils::now();
for(std::map<std::string,_E>::const_iterator i(_db.begin());i!=_db.end();++i) {
if ((now - i->second.lastCheck) > (uint64_t)maxSinceCheck)
this->get(i->first);
func(i->first,i->second.obj);
for(std::map<std::string,_E>::iterator i(_db.lower_bound(prefix));i!=_db.end();) {
if (i->first.substr(0,prefix.length()) == prefix) {
if (!func(i->first,get(i->second.obj,maxSinceCheck))) {
std::map<std::string,_E>::iterator i2(i); ++i2;
this->erase(i->first);
i = i2;
} else ++i;
} else break;
}
}
private:
void _reload(const std::string &p);
bool _isValidObjectName(const std::string &n);
std::string _genPath(const std::string &n,bool create);
void _reloadAll(const std::string &path);
struct _E
{
nlohmann::json obj;
uint64_t lastModifiedOnDisk;
uint64_t lastCheck;
nlohmann::json obj;
};
std::string _basePath;