IoTGateway/DataProcess

Data Format and SQL Field is designed for Data e-motion, Mqtt Reliability Data Channel.

SQL Field

SQLite Table Fields ( Auto Index)
Item	Field Name	Type	Need	Format	Example
1	Key	Unsigned Int	Must		6886 (serial number)
2	SecondKey	Text	Optional		Default: Hanle Name: SUSHandler
3	Protocol_Param	Text	Optional	JSON	{"Type":"MQTT","TypeId":1, "QoS":0 }
4	Message	Text	Optional		{IoTGW { …. } )
5	Send	Flag	Optional	0 or 1	1 or 0
6	Time	Unsigned Int	Must		33325 ( UTC in sec )
7	General	Text	Optional		any type format

SQLite Table Fields ( User Assign Key )
Item	Field Name	Type	Need	Format	Example
1	Key	Text	Must		/cagent/admin/infoack
2	SecondKey	Text	Optional		Default: Hanle Name: SUSHandler
3	Protocol_Param	Text	Optional	JSON	{"Type":"MQTT","TypeId":1, "QoS":0 }
4	Message	Text	Optional		{IoTGW { …. } )
5	Send	Flag	Optional	0 or 1	1 or 0
6	Time	Unsigned Int	Must		33325 ( UTC in sec )
7	General	Text	Optional		any type format

SQLite Methods
Item	Method	Note
1	Insert	*by Primary key *by Second key ( ex: HandlerName ) ( primary key => auto index )
2	Update	by Primary key
3	Query	* by Primary key * by Search rules ( like or updatetime or latest item / order by ? (time ...) ) * All ( order by time )
4	Clean	*by Primary Key *by Search rules ( like or updatetime or latest item / order by ? (time ...) ) *All items of Table
5	Create Table	*AutoIndex *UniqueKey

SQL Structure and Define for Handler

Protocol Params in JSON Format

{			
  "Protocol":"MQTT",
   "MQTT":{
           "QoS":2,
           "Retain":0
   }						
}

		typedef struct DataExInfo

{ int nVer; // Struct version, ( 1 ) void *pSqlParams; // address of SQL parameters structure void *pExtend1; // Reserved void *pExtend2; // Reserved }DATAEX_INFO, DataEx_Info;