// Static Methods
// Delegate handler to create a new IEEE 1344 frequency definition
internal static IFrequencyDefinition CreateNewDefinition(IConfigurationCell parent, byte[] buffer, int startIndex, out int parsedLength)
{
IFrequencyDefinition frequencyDefinition = new FrequencyDefinition(parent);
parsedLength = frequencyDefinition.ParseBinaryImage(buffer, startIndex, 0);
return(frequencyDefinition);
}
/// <summary>
/// Parses the binary body image.
/// </summary>
/// <param name="buffer">Binary image to parse.</param>
/// <param name="startIndex">Start index into <paramref name="buffer"/> to begin parsing.</param>
/// <param name="length">Length of valid data within <paramref name="buffer"/>.</param>
/// <returns>The length of the data that was parsed.</returns>
/// <remarks>
/// The IEEE 1344 protocol provides frequency and df/dt as optional data measurements, so we override
/// the default behavior to account for this change in operation.
/// </remarks>
protected override int ParseBodyImage(byte[] buffer, int startIndex, int length)
{
FrequencyDefinition definition = Definition;
int parsedLength = 0;
if (definition != null)
{
// Note that IEEE 1344 only supports scaled integers (no need to worry about floating points)
if (definition.FrequencyIsAvailable)
{
UnscaledFrequency = BigEndian.ToInt16(buffer, startIndex);
startIndex += 2;
parsedLength += 2;
}
if (definition.DfDtIsAvailable)
{
UnscaledDfDt = BigEndian.ToInt16(buffer, startIndex);
parsedLength += 2;
}
}
return(parsedLength);
}
/// <summary>
/// Creates a new <see cref="FrequencyValue"/> from specified parameters.
/// </summary>
/// <param name="parent">The <see cref="DataCell"/> parent of this <see cref="FrequencyValue"/>.</param>
/// <param name="frequencyDefinition">The <see cref="FrequencyDefinition"/> associated with this <see cref="FrequencyValue"/>.</param>
/// <param name="frequency">The floating point value that represents this <see cref="FrequencyValue"/>.</param>
/// <param name="dfdt">The floating point value that represents the change in this <see cref="FrequencyValue"/> over time.</param>
public FrequencyValue(DataCell parent, FrequencyDefinition frequencyDefinition, double frequency, double dfdt)
: base(parent, frequencyDefinition, frequency, dfdt)
{
}
/// <summary>
/// Creates a new <see cref="FrequencyValue"/> from specified parameters.
/// </summary>
/// <param name="parent">The <see cref="DataCell"/> parent of this <see cref="FrequencyValue"/>.</param>
/// <param name="frequencyDefinition">The <see cref="FrequencyDefinition"/> associated with this <see cref="FrequencyValue"/>.</param>
/// <param name="frequency">The floating point value that represents this <see cref="FrequencyValue"/>.</param>
/// <param name="dfdt">The floating point value that represents the change in this <see cref="FrequencyValue"/> over time.</param>
public FrequencyValue(DataCell parent, FrequencyDefinition frequencyDefinition, double frequency, double dfdt)
: base(parent, frequencyDefinition, frequency, dfdt)
{
}
// Static Methods
// Delegate handler to create a new IEEE 1344 frequency definition
internal static IFrequencyDefinition CreateNewDefinition(IConfigurationCell parent, byte[] buffer, int startIndex, out int parsedLength)
{
IFrequencyDefinition frequencyDefinition = new FrequencyDefinition(parent);
parsedLength = frequencyDefinition.ParseBinaryImage(buffer, startIndex, 0);
return frequencyDefinition;
}
