// Process device properties into a JSON string.
int processDeviceJSON(int32_t deviceOffset, char* result, int resultLength) {
char* currentPos = result;
char* endPos = result + resultLength;
uint32_t i;
int32_t* device = _devices + deviceOffset;
// If no properties return empty JSON.
if (_requiredPropertiesCount == 0) {
currentPos += snprintf(currentPos, endPos - currentPos, "{ }");
return (int)(currentPos - result);
}
currentPos += snprintf(currentPos, endPos - currentPos, "{\n");
// Process each line of data using the relevant value separator. In this case, a pipe.
for(i = 0; i < _requiredPropertiesCount; i++) {
// Add the next property to the buffer.
currentPos += snprintf(
currentPos,
(int)(endPos - currentPos),
"\"%s\": \"%s\"",
*(_requiredPropertiesNames + i),
getValueFromDevice(device, *(_requiredProperties + i)));
if(i + 1 != _requiredPropertiesCount) {
currentPos += snprintf(currentPos, endPos - currentPos, ",\n");
}
// Check to see if buffer is filled in which case return -1.
if (currentPos >= endPos)
return -1;
}
currentPos += snprintf(currentPos, endPos - currentPos, "\n}");
return (int)(currentPos - result);
}
// Process device properties into a CSV string.
int processDeviceCSV(int32_t deviceOffset, char* result, int resultLength) {
char* currentPos = result;
char* endPos = result + resultLength;
uint32_t i;
int32_t* device = _devices + deviceOffset;
// If no properties return nothing.
if (_requiredPropertiesCount == 0) {
*currentPos = 0;
return 0;
}
// Process each line of data using the relevant value separator. In this case, a pipe.
for(i = 0; i < _requiredPropertiesCount; i++) {
// Add the next property to the buffer.
currentPos += snprintf(
currentPos,
(int)(endPos - currentPos),
"%s,%s\n",
*(_requiredPropertiesNames + i),
getValueFromDevice(device, *(_requiredProperties + i)));
// Check to see if buffer is filled in which case return -1.
if (currentPos >= endPos)
return -1;
}
// Return the length of the string buffer used.
return (int)(currentPos - result);
}
// Process device properties into a JSON string.
int fiftyoneDegreesProcessDeviceJSON(int32_t deviceOffset, char* result, int resultLength) {
const char* deviceValue;
int32_t deviceValueLength, deviceValueIndex;
char* currentPos = result;
char* endPos = result + resultLength;
uint32_t i;
int32_t* device = _devices + deviceOffset;
// If no properties return empty JSON.
if (_requiredPropertiesCount == 0) {
currentPos += snprintf(currentPos, endPos - currentPos, "{ }");
return (int)(currentPos - result);
}
currentPos += snprintf(currentPos, endPos - currentPos, "{\n");
// Process each line of data using the relevant value separator. In this case, a pipe.
for(i = 0; i < _requiredPropertiesCount; i++) {
// Add the next property to the buffer.
currentPos += snprintf(
currentPos,
(int)(endPos - currentPos),
"\"%s\": \"",
*(_requiredPropertiesNames + i));
deviceValue = getValueFromDevice(device, *(_requiredProperties + i));
deviceValueLength = strlen(deviceValue);
for(deviceValueIndex = 0; deviceValueIndex < deviceValueLength; deviceValueIndex++) {
if(deviceValue[deviceValueIndex] == 0){
break;
}
else if(deviceValue[deviceValueIndex] == '"'){
currentPos += snprintf(
currentPos,
(int)(endPos - currentPos),
"\\");
}
currentPos += snprintf(
currentPos,
(int)(endPos - currentPos),
"%c",
deviceValue[deviceValueIndex]);
}
currentPos += snprintf(
currentPos,
(int)(endPos - currentPos),
"\"");
if(i + 1 != _requiredPropertiesCount) {
currentPos += snprintf(currentPos, endPos - currentPos, ",\n");
}
// Check to see if buffer is filled in which case return -1.
if (currentPos >= endPos)
return -1;
}
currentPos += snprintf(currentPos, endPos - currentPos, "\n}");
return (int)(currentPos - result);
}
// Takes the results of getDeviceOffset and getPropertyIndex to return a value.
char* getValue(int deviceOffset, int propertyIndex) {
return getValueFromDevice(_devices + deviceOffset, propertyIndex);
}
// Takes the results of getDeviceOffset and getPropertyIndex to return a value.
char* fiftyoneDegreesGetValue(int deviceOffset, int propertyIndex) {
return getValueFromDevice(_devices + deviceOffset, propertyIndex);
}
