/// <summary>
/// Parses the raw text input and generates a decimal sensor log record
/// </summary>
/// <param name="timestampInputValue">The timestamp string value from the input log record</param>
/// <param name="decimalInputValue">The decimal string value from the input log record</param>
/// <exception cref="ArgumentException">timestampInputValue is null or whitespace</exception>
/// <exception cref="ArgumentException">decimalInputValue is null or whitespace</exception>
/// <exception cref="ArgumentException">timestampInputValue cannot be parsed to a DateTime</exception>
/// <exception cref="ArgumentException">decimalInputValue cannot be parsed to a decimal</exception>
/// <returns>Integer sensor log record</returns>
private DecimalReadingModel HandleDecimalReading(string timestampInputValue, string decimalInputValue)
{
if (string.IsNullOrWhiteSpace(timestampInputValue))
{
_logger.LogError($"{Messages.NullWhitespaceString} (Parameter '{nameof(timestampInputValue)}')");
throw new ArgumentException(Messages.NullWhitespaceString, nameof(timestampInputValue));
}
if (string.IsNullOrWhiteSpace(decimalInputValue))
{
_logger.LogError($"{Messages.NullWhitespaceString} (Parameter '{nameof(decimalInputValue)}')");
throw new ArgumentException(Messages.NullWhitespaceString, nameof(decimalInputValue));
}
if (!DateTime.TryParse(timestampInputValue, out DateTime timestamp))
{
_logger.LogError($"{Messages.InvalidDateTimeValue} (Parameter '{nameof(timestampInputValue)}')");
throw new ArgumentException(Messages.InvalidDateTimeValue, nameof(timestampInputValue));
}
if (!decimal.TryParse(decimalInputValue, out decimal value))
{
_logger.LogError($"{Messages.InvalidDecimalValue} (Parameter '{nameof(decimalInputValue)}')");
throw new ArgumentException(Messages.InvalidDecimalValue, nameof(decimalInputValue));
}
DecimalReadingModel readingModel = new DecimalReadingModel
{
Timestamp = timestamp,
Value = value
};
return(readingModel);
}
public void HandleDecimalReadingTest(string timestampInputValue, string decimalInputValue, DecimalReadingModel expected)
{
// Arrange
MethodInfo methodInfo = _methodInfos
.Where(x => x.Name.Equals("HandleDecimalReading") && x.IsPrivate)
.First();
// Act
DecimalReadingModel actual = (DecimalReadingModel)methodInfo.Invoke(_logFile, new object[] { timestampInputValue, decimalInputValue });
// Assert
actual
.Should()
.NotBeNull()
.And
.Equals(expected);
}
/// <summary>
/// Generates a sensor log model from the sensor log input text file
/// </summary>
/// <param name="logContentsStr">The sensor log input text file</param>
/// <exception cref="ArgumentException">logContentStr is null or whitespace</exception>
/// <exception cref="NotImplementedException">Invalid record type is entered</exception>
/// <returns>The sensor log model representing the sensors and reading log records</returns>
private SensorLogModel ParseInputLogFile(string logContentsStr)
{
if (string.IsNullOrWhiteSpace(logContentsStr))
{
_logger.LogError($"{Messages.NullWhitespaceString} (Parameter '{nameof(logContentsStr)}')");
throw new ArgumentException(Messages.NullWhitespaceString, nameof(logContentsStr));
}
SensorLogModel model = new SensorLogModel();
string[] input = logContentsStr.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
Regex timeValueRegex = new Regex("[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])T(2[0-3]|[01][0-9]):[0-5][0-9]");
for (int i = 0; i < input.Length; i++)
{
string[] line = input[i].Split(' ');
switch (line[0])
{
case "reference":
model.ReferenceValues = HandleReferenceValuesLogRecord(line[1], line[2], line[3]);
break;
case "thermometer":
ThermometerModel thermometerModel = new ThermometerModel
{
Name = line[1]
};
while (true)
{
i++;
line = input[i].Split(' ');
if (timeValueRegex.IsMatch(line[0]))
{
DecimalReadingModel readingModel = HandleDecimalReading(line[0], line[1]);
thermometerModel.Readings.Add(readingModel);
}
else
{
i--;
break;
}
if (i + 1 >= input.Length)
{
break;
}
}
model.ThermometerReadings.Add(thermometerModel);
break;
case "humidity":
HumidityModel humidityModel = new HumidityModel
{
Name = line[1]
};
while (true)
{
i++;
line = input[i].Split(' ');
if (timeValueRegex.IsMatch(line[0]))
{
DecimalReadingModel readingModel = HandleDecimalReading(line[0], line[1]);
humidityModel.Readings.Add(readingModel);
}
else
{
i--;
break;
}
if (i + 1 >= input.Length)
{
break;
}
}
model.HumidityReadings.Add(humidityModel);
break;
case "monoxide":
MonoxideModel monoxideModel = new MonoxideModel
{
Name = line[1]
};
while (true)
{
i++;
line = input[i].Split(' ');
if (timeValueRegex.IsMatch(line[0]))
{
IntegerReadingModel readingModel = HandleIntegerReading(line[0], line[1]);
monoxideModel.Readings.Add(readingModel);
}
else
{
i--;
break;
}
if (i + 1 >= input.Length)
{
break;
}
}
model.MonoxideReadings.Add(monoxideModel);
break;
default:
_logger.LogError($"Sensor type {line[0]} has not been implemented yet.");
throw new NotImplementedException($"Sensor type {line[0]} has not been implemented yet.");
}
}
return(model);
}
