The KPN SenML library helps you create and parse senml documents in both json and cbor format. The library can be used for sending sensor data and receiving actuator commands.

senml_int_record.cpp

Committer:
kpniot
Date:
2018-05-19
Revision:
0:a9259748d982

File content as of revision 0:a9259748d982:

/*  _  __  ____    _   _ 
 * | |/ / |  _ \  | \ | |
 * | ' /  | |_) | |  \| |
 * | . \  |  __/  | |\  |
 * |_|\_\ |_|     |_| \_|
 * 
 * (c) 2018 KPN
 * License: MIT License.
 * Author: Jan Bogaerts
 * 
 * support for int sensors
 */

#include <senml_int_record.h>
#include <cbor.h>
#include <senml_helpers.h>
#include <senml_int_pack.h> 
#include <senml_double_pack.h> 

SenMLIntRecord::SenMLIntRecord(const char* name): SenMLRecordTemplate(name)
{
}

SenMLIntRecord::SenMLIntRecord(const char* name, SenMLUnit unit): SenMLRecordTemplate(name, unit)
{
}

int SenMLIntRecord::getAdjustedValue()
{
    int adjustedValue = this->get();
    if(_streamCtx->baseDataType == CBOR_TYPE_INT){
        if(this->asSum())
            adjustedValue -= ((SenMLIntPack*)this->getRoot())->getBaseSum();
        else
            adjustedValue -= ((SenMLIntPack*)this->getRoot())->getBaseValue();
    }
    return adjustedValue;
}

double SenMLIntRecord::getAdjustedValueD()
{
    double adjustedValue = this->get();
    if(_streamCtx->baseDataType == CBOR_TYPE_DOUBLE){
        if(this->asSum())
            adjustedValue -= ((SenMLDoublePack*)this->getRoot())->getBaseSum();
        else
            adjustedValue -= ((SenMLDoublePack*)this->getRoot())->getBaseValue();
    }
    return adjustedValue;
}

void SenMLIntRecord::fieldsToJson()
{
    SenMLRecord::fieldsToJson();
    if(this->asSum())
        printText(",\"s\":", 5);
    else
        printText(",\"v\":", 5);

    //if the parent pack has a base value or base sum of type double, then we need to render a double value.
    if(_streamCtx->baseDataType == CBOR_TYPE_INT || _streamCtx->baseDataType == CBOR_TYPE_DATA){
        #ifdef __MBED__
            char buf[10];
            sprintf(buf, "%d", this->getAdjustedValue());
            String val = buf;
        #else
            String val(this->getAdjustedValue());
        #endif
        printText(val.c_str(), val.length());
    }
    else{
        printDouble(this->getAdjustedValueD(), SENML_MAX_DOUBLE_PRECISION);
    }
}


int SenMLIntRecord::fieldsToCbor()
{
    int res = SenMLRecord::fieldsToCbor();
    if(this->asSum())
        res += cbor_serialize_int(SENML_CBOR_S_LABEL);
    else
        res += cbor_serialize_int(SENML_CBOR_V_LABEL);

    //if the parent pack has a base value or base sum of type double, then we need to render a double value.
    if(_streamCtx->baseDataType == CBOR_TYPE_INT || _streamCtx->baseDataType == CBOR_TYPE_DATA)        
        res += cbor_serialize_int(this->getAdjustedValue());
    else
        res += cbor_serialize_double(this->getAdjustedValueD());
    return res;
}