104 lines
3.3 KiB
C++
104 lines
3.3 KiB
C++
#ifndef _GWBOATDATA_H
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#define _GWBOATDATA_H
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#include "GwLog.h"
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#include <ArduinoJson.h>
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#include <Arduino.h>
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#include <map>
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#define GW_BOAT_VALUE_LEN 32
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class GwBoatItemBase{
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public:
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static const unsigned long INVALID_TIME=60000;
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typedef std::map<String,GwBoatItemBase*> GwBoatItemMap;
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protected:
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unsigned long lastSet=0;
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unsigned long invalidTime=INVALID_TIME;
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void uls(){
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lastSet=millis();
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}
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public:
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unsigned long getLastSet() const {return lastSet;}
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bool isValid(unsigned long now=0) const {
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if (lastSet == 0) return false;
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if (invalidTime == 0) return true;
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if (now == 0) now=millis();
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return (lastSet + invalidTime) >= now;
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}
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GwBoatItemBase(unsigned long invalidTime=INVALID_TIME){
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lastSet=0;
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this->invalidTime=invalidTime;
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}
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virtual ~GwBoatItemBase(){}
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void invalidate(){
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lastSet=0;
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}
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virtual void toJsonDoc(DynamicJsonDocument *doc,String name)=0;
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};
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class GwBoatData;
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template<class T> class GwBoatItem : public GwBoatItemBase{
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public:
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typedef T (*Formatter)(T);
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private:
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T data;
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Formatter fmt;
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public:
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GwBoatItem(unsigned long invalidTime=INVALID_TIME,Formatter fmt=NULL):
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GwBoatItemBase(invalidTime){
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this->fmt=fmt;
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}
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virtual ~GwBoatItem(){}
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void update(T nv){
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data=nv;
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uls();
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}
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T getData(bool useFormatter=false){
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if (! useFormatter || fmt == NULL) return data;
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return (*fmt)(data);
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}
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T getDataWithDefault(T defaultv){
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if (! isValid(millis())) return defaultv;
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return data;
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}
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virtual void toJsonDoc(DynamicJsonDocument *doc,String name){
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(*doc)[name]=getData(true);
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}
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private:
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static GwBoatItem<T> *findOrCreate(GwBoatItemMap *values, String name,bool doCreate=true,
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long invalidTime=GwBoatItemBase::INVALID_TIME, Formatter fmt=NULL){
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GwBoatItemMap::iterator it;
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if ((it=values->find(name)) != values->end()){
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return (GwBoatItem<T> *)it->second;
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}
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if (! doCreate) return NULL;
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GwBoatItem<T> *ni=new GwBoatItem<T>(invalidTime,fmt);
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(*values)[name]=ni;
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return ni;
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}
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friend class GwBoatData;
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};
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/**
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* implement a get for a particular type of boatData
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* will create a method get##name##Item that returns a GwBoatItem<type>
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* */
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#define GWBOATDATA_IMPL_ITEM(type,name) GwBoatItem<type> *get##name##Item(String iname,bool doCreate=true, \
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long invalidTime=GwBoatItemBase::INVALID_TIME, GwBoatItem<type>::Formatter fmt=NULL){ \
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return GwBoatItem<type>::findOrCreate(&values,iname, doCreate, \
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invalidTime,fmt);\
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}
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class GwBoatData{
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private:
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GwLog *logger;
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GwBoatItemBase::GwBoatItemMap values;
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public:
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GwBoatData(GwLog *logger);
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~GwBoatData();
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String toJson() const;
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GWBOATDATA_IMPL_ITEM(double,Double)
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GWBOATDATA_IMPL_ITEM(long,Long)
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GWBOATDATA_IMPL_ITEM(uint32_t,Uint32)
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};
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#endif |