separate boat data, integrate with web server

lib/boatData/GwBoatData.h

@@ -0,0 +1,67 @@
+#ifndef _GWBOATDATA_H
+#define _GWBOATDATA_H
+
+#include "GwLog.h"
+#include <ArduinoJson.h>
+#include <Arduino.h>
+#include <map>
+#define GW_BOAT_VALUE_LEN 32
+class GwBoatItem{
+    private:
+        char value[GW_BOAT_VALUE_LEN];
+        long lastSet;
+        void uls(){
+            lastSet=millis();
+        }
+    public:
+        const char * getValue() const{return value;}
+        long getLastSet() const {return lastSet;}
+        bool isValid(long minTime) const {return lastSet > minTime;}
+        GwBoatItem(){
+            value[0]=0;
+            lastSet=-1;
+        }
+        void update(String nv){
+            strncpy(value,nv.c_str(),GW_BOAT_VALUE_LEN-1);
+            uls();
+        }
+        void update(const char * nv){
+            strncpy(value,nv,GW_BOAT_VALUE_LEN-1);
+        }
+        void update(long nv){
+            ltoa(nv,value,10);
+            uls();
+        }
+        void update(bool nv){
+            if (nv) strcpy_P(value,PSTR("true"));
+            else strcpy_P(value,PSTR("false"));
+            uls();
+        }
+        void update(double nv){
+            dtostrf(nv,3,7,value);
+            uls();
+        }
+        void invalidate(){
+            lastSet=0;
+        }
+
+};
+class GwBoatData{
+    typedef std::map<String,GwBoatItem*> GwBoatItemMap;
+    private:
+        const long maxAge=60000; //max age for valid data in ms
+        GwLog *logger;
+        GwBoatItemMap values;
+        GwBoatItem *find(String name, bool doCreate=true);
+    public:
+        GwBoatData(GwLog *logger);
+        ~GwBoatData();    
+        void update(String name,const char *value);
+        void update(String name, String value);
+        void update(String name, long value);
+        void update(String name, bool value);
+        void update(String name, double value);
+        String toJson() const;
+
+};
+#endif