storage_registry.h

#ifndef _STORAGE_REGISTRY_H
#define _STORAGE_REGISTRY_H

#include <vector>
#include <queue>
#include <string>
#include <mutex>
#include <condition_variable>
#include <thread>

typedef std::vector<std::pair<std::string *, std::string *> > REGISTRY;

typedef struct {
    std::string url;
    std::string key;
    std::vector<std::string> keyValues;
    std::string operation;
} TableRegistration;

typedef std::vector<std::pair<std::string *, TableRegistration *> > REGISTRY_TABLE;


class StorageRegistry {
    public:
        StorageRegistry();
        ~StorageRegistry();
        void        registerAsset(const std::string& asset, const std::string& url);
        void        unregisterAsset(const std::string& asset, const std::string& url);
        void        process(const std::string& payload);
        void        processTableInsert(const std::string& tableName, const std::string& payload);
        void        processTableUpdate(const std::string& tableName, const std::string& payload);
        void        processTableDelete(const std::string& tableName, const std::string& payload);
        void        registerTable(const std::string& table, const std::string& url);
        void        unregisterTable(const std::string& table, const std::string& url);
        void        run();
    private:
        void        processPayload(char *payload);
        void        sendPayload(const std::string& url, const char *payload);
        void        filterPayload(const std::string& url, char *payload, const std::string& asset);
        void        processInsert(char *tableName, char *payload);
        void        processUpdate(char *tableName, char *payload);
        void        processDelete(char *tableName, char *payload);
        TableRegistration*
                parseTableSubscriptionPayload(const std::string& payload);
        void        insertTestTableReg();
        void        removeTestTableReg(int n);
        
        typedef     std::pair<time_t, char *> Item;
        typedef     std::tuple<time_t, char *, char *> TableItem;
        REGISTRY            m_registrations;
        REGISTRY_TABLE          m_tableRegistrations;
        
        std::queue<StorageRegistry::Item>
                        m_queue;
        std::queue<StorageRegistry::TableItem>
                        m_tableInsertQueue;
        std::queue<StorageRegistry::TableItem>
                        m_tableUpdateQueue;
        std::queue<StorageRegistry::TableItem>
                        m_tableDeleteQueue;
        std::mutex          m_qMutex;
        std::mutex          m_registrationsMutex;
        std::mutex          m_tableRegistrationsMutex;
        std::thread         *m_thread;
        std::condition_variable     m_cv;
        std::mutex          m_cvMutex;
        bool                m_running;
};

#endif