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parsed_message.h
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parsed_message.h
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#ifndef PARSED_MESSAGE_H
#define PARSED_MESSAGE_H
class ParsedMessage {
public:
double cumulativeActiveImport;
double cumulativeActiveExport;
double cumulativeReactiveImport;
double cumulativeReactiveExport;
double momentaryActiveImport;
double momentaryActiveExport;
double momentaryReactiveImport;
double momentaryReactiveExport;
double momentaryActiveImportL1;
double momentaryActiveExportL1;
double momentaryActiveImportL2;
double momentaryActiveExportL2;
double momentaryActiveImportL3;
double momentaryActiveExportL3;
double momentaryReactiveImportL1;
double momentaryReactiveExportL1;
double momentaryReactiveImportL2;
double momentaryReactiveExportL2;
double momentaryReactiveImportL3;
double momentaryReactiveExportL3;
double voltageL1;
double voltageL2;
double voltageL3;
double currentL1;
double currentL2;
double currentL3;
uint16_t crc;
bool telegramComplete;
bool crcOk;
bool sendBatchOne;
void parseRow(const char* obisCode, const char* value) {
double obisValue = simpleatof(value);
parseRow(obisCode, obisValue);
}
void parseRow(const char* obisCode, double obisValue) {
int obisCodeLen = strnlen(obisCode, 7);
if (obisCode[obisCodeLen-1] == '0' &&
obisCode[obisCodeLen-2] == '.' &&
obisCode[obisCodeLen-4] == '.') {
switch (obisCodeLen) {
case 5: switch(obisCode[obisCodeLen-3]) {
case '7': switch (obisCode[0]) {
case '1': momentaryActiveImport = obisValue;
break;
case '2': momentaryActiveExport = obisValue;
break;
case '3': momentaryReactiveImport = obisValue;
break;
case '4': momentaryReactiveExport = obisValue;
break;
default: break;
}
break;
case '8': switch (obisCode[0]) {
case '1': cumulativeActiveImport = obisValue;
break;
case '2': cumulativeActiveExport = obisValue;
break;
case '3': cumulativeReactiveImport = obisValue;
break;
case '4': cumulativeReactiveExport = obisValue;
break;
default: break;
}
break;
default: break;
}
break;
case 6: if (obisCode[obisCodeLen-3] == '7') {
switch(obisCode[1]) {
case '1': switch (obisCode[0]) {
case '2': momentaryActiveImportL1 = obisValue;
break;
case '3': currentL1 = obisValue;
break;
case '4': momentaryActiveImportL2 = obisValue;
break;
case '5': currentL2 = obisValue;
break;
case '6': momentaryActiveImportL3 = obisValue;
break;
case '7': currentL3 = obisValue;
break;
default: break;
}
break;
case '2': switch (obisCode[0]) {
case '2': momentaryActiveExportL1 = obisValue;
break;
case '3': voltageL1 = obisValue;
break;
case '4': momentaryActiveExportL2 = obisValue;
break;
case '5': voltageL2 = obisValue;
break;
case '6': momentaryActiveExportL3 = obisValue;
break;
case '7': voltageL3 = obisValue;
break;
default: break;
}
break;
case '3': switch (obisCode[0]) {
case '2': momentaryReactiveImportL1 = obisValue;
break;
case '4': momentaryReactiveImportL2 = obisValue;
break;
case '6': momentaryReactiveImportL3 = obisValue;
break;
default: break;
}
break;
case '4': switch (obisCode[0]) {
case '2': momentaryReactiveExportL1 = obisValue;
break;
case '4': momentaryReactiveExportL2 = obisValue;
break;
case '6': momentaryReactiveExportL3 = obisValue;
break;
default: break;
}
break;
default: break;
}
}
break;
default: break;
}
}
}
// Limitations:
// Numbers larger than 2G will fail (but spec only goes to 99999999.999 so ok)
// And numbers have no more than 3 decimals in the spec.
// spec == Swedish spec for H1
double simpleatof(const char* value) {
double decFactors[10] = {10.0, 100.0, 1000.0, 100000.0,
1000000.0, 10000000.0, 100000000.0,
1000000000.0, 10000000000.0,
100000000000.0};
int idx = 0;
int intPart = 0;
while (value[idx] != '.')
{
intPart = intPart*10 + (value[idx]-'0');
idx++;
}
int len = strlen(value), startIdx = ++idx;
int decPart = 0;
while (idx < len)
{
decPart = decPart*10 + (value[idx]-'0');
idx++;
}
return intPart + decPart/decFactors[len-startIdx-1];
}
void initNewTelegram() {
crc = 0x0000;
telegramComplete = false;
crcOk = false;
sendBatchOne = true;
}
void updateCrc16(uint8_t a) {
int i;
crc ^= a;
for (i = 0; i < 8; ++i) {
if (crc & 1) {
crc = (crc >> 1) ^ 0xA001;
} else {
crc = (crc >> 1);
}
}
}
void checkCrc(uint16_t crcFromMessage) {
crcOk = crc == crcFromMessage;
telegramComplete = true;
}
};
#endif