intermediate: xdr type mapping

lib/xdrmappings/GwXDRMappings.h

@@ -0,0 +1,135 @@
+#ifndef _GWXDRMAPPINGS_H
+#define _GWXDRMAPPINGS_H
+#include "GwLog.h"
+#include "GWConfig.h"
+#include <WString.h>
+#include <vector>
+//enum must match the defines in xdrconfig.json
+typedef enum {
+    XDRTEMP=0,
+    XDRHUMIDITY=1,
+    XDRPRSSURE=2,
+    XDRTIME=3, //unused
+    XDRFLUID=4,
+    XDRDCTYPE=5, //unused
+    XDRBATTYPE=6, //unused
+    XDRBATCHEM=7, //unused
+    XDRGEAR=8, //unused
+    XDRBAT=9,
+    XDRENGINE=10
+} GwXDRCategory;
+class GwXDRType{
+    public:
+    typedef enum{
+        PRESS=0,
+        PERCENT=1,
+        VOLT=2,
+        AMP=3
+    }TypeCode;
+    typedef double (* convert)(double);
+    TypeCode code;
+    String xdrtype;
+    String xdrunit;
+    convert tonmea=NULL;
+    convert fromnmea=NULL;
+    GwXDRType(TypeCode tc,String xdrtype,String xdrunit,convert fromnmea=NULL,convert tonmea=NULL){
+        this->code=tc;
+        this->xdrtype=xdrtype;
+        this->xdrunit=xdrunit;
+        this->fromnmea=fromnmea;
+        this->tonmea=tonmea;
+    }
+};
+class GwXDRTypeMapping{
+    public:
+        GwXDRCategory category;
+        int fieldIndex;
+        GwXDRType::TypeCode type;
+        GwXDRTypeMapping(GwXDRCategory category,
+            int fieldIndex,
+            GwXDRType::TypeCode type){
+                this->category=category;
+                this->type=type;
+                this->fieldIndex=fieldIndex;
+            }
+};
+
+class GwXDRMappingDef{
+    public:
+    typedef enum{
+        IS_SINGLE=0,
+        IS_IGNORE,
+        IS_AUTO,
+        IS_LAST
+    } InstanceMode;
+    typedef enum{
+        M_DISABLED=0,
+        M_BOTH=1,
+        M_TO2K=2,
+        M_FROM2K=3,
+        M_LAST
+    } Direction;
+    String xdrName;
+    GwXDRCategory category;
+    int selector=-1;
+    int field=-1;
+    InstanceMode instanceMode=IS_AUTO;
+    int instanceId=-1;
+    Direction direction=M_BOTH;
+    GwXDRMappingDef(String xdrName,GwXDRCategory category,
+        int selector, int field,InstanceMode istanceMode,int instance,
+        Direction direction){
+            this->xdrName=xdrName;
+            this->category=category;
+            this->selector=selector;
+            this->field=field;
+            this->instanceMode=instanceMode;
+            this->instanceId=instance;
+            this->direction=direction;
+        };
+    GwXDRMappingDef(){
+        category=XDRTEMP;
+    }
+    String toString();
+    static GwXDRMappingDef *fromString(String s);    
+    private:
+    static bool handleToken(String tok,int index,GwXDRMappingDef *def);
+};
+class GwXDRMapping{
+    public:
+        GwXDRMappingDef *definition;
+        GwXDRType *type;
+        GwXDRMapping(GwXDRMappingDef *definition,GwXDRType *type){
+            this->definition=definition;
+            this->type=type;
+        }
+        //we allow 100 entities of code,selector and field nid
+        static long n2kKey(GwXDRType::TypeCode code,int selector,int field){
+            long rt=(int)code;
+            if (selector < 0) selector=0;
+            rt=rt*100+selector;
+            if (field < 0) field=0;
+            rt=rt*100*field;
+            return rt;
+        }
+        static String n183key(String xdrName,String xdrType,String xdrUnit){
+            String rt=xdrName;
+            rt+=",";
+            rt+=xdrType;
+            rt+=",";
+            rt+=xdrUnit;
+            return rt;
+        }
+};
+
+class GwXDRMappings{
+    private:
+     GwLog *logger;
+     GwConfigHandler *config;
+    public:
+        GwXDRMappings(GwLog *logger,GwConfigHandler *config);
+        void begin();
+
+};
+
+#endif