protected int GetUDTArrayTypeMappingCount(ArrayMapping arrayMapping)
{
// UDT[] where each array element is the same mapping, but represent different times
if (arrayMapping.WindowSize != 0.0M)
{
MeasurementKey[] keys;
AlignmentCoordinator.SampleWindow sampleWindow = GetSampleWindow(arrayMapping, out keys);
m_lastKeyIndex = m_keyIndex;
m_cachedMapping = GetTypeMapping(arrayMapping);
m_cachedFrames = AlignmentCoordinator.GetFrames(keys, CurrentFrameTime, sampleWindow);
return(m_cachedFrames.Count);
}
// UDT[] where each array element is the same time (relative to now), but represent different mappings
if (arrayMapping.RelativeTime != 0.0M)
{
MeasurementKey[] keys;
AlignmentCoordinator.SampleWindow sampleWindow = GetSampleWindow(arrayMapping, out keys);
CurrentFrame = AlignmentCoordinator.GetFrame(keys, CurrentFrameTime, sampleWindow);
m_cachedMappings = MappingCompiler.EnumerateTypeMappings(arrayMapping.Expression).ToArray();
return(m_cachedMappings.Length);
}
// UDT[] where each array element is the same time, but represent different mappings
m_cachedMappings = MappingCompiler.EnumerateTypeMappings(arrayMapping.Expression).ToArray();
return(m_cachedMappings.Length);
}
protected AlignmentCoordinator.SampleWindow CreateSampleWindow(ArrayMapping arrayMapping)
{
decimal relativeTime = arrayMapping.RelativeTime;
TimeSpan relativeUnit = arrayMapping.RelativeUnit;
decimal sampleRate = arrayMapping.SampleRate;
TimeSpan sampleUnit = arrayMapping.SampleUnit;
decimal windowSize = arrayMapping.WindowSize;
TimeSpan windowUnit = arrayMapping.WindowUnit;
// Collection with no time window
if (windowSize == 0.0M)
{
return(CreateSampleWindow((FieldMapping)arrayMapping));
}
// No relative time indicates that the relative
// time is actually equal to the window size
// Ex: last 5 seconds
if (relativeTime == 0.0M)
{
relativeTime = windowSize;
relativeUnit = windowUnit;
}
return(AlignmentCoordinator.CreateSampleWindow(relativeTime, relativeUnit, sampleRate, sampleUnit, windowSize, windowUnit));
}
protected List <MetaValues> CreateMetaValues(ArrayMapping arrayMapping)
{
MeasurementKey[] keys = m_keys[m_keyIndex++];
if (arrayMapping.WindowSize != 0.0M)
{
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(arrayMapping);
MeasurementKey key = keys.Single();
return(AlignmentCoordinator.CreateMetaValues(key, m_currentFrameTime, sampleWindow));
}
if (arrayMapping.RelativeTime != 0.0M)
{
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(arrayMapping);
return(keys
.Select(key => AlignmentCoordinator.CreateMetaValue(key, m_currentFrameTime, sampleWindow))
.ToList());
}
return(keys
.Select(key => new MetaValues()
{
ID = key.SignalID,
Timestamp = m_currentFrameTime,
Flags = MeasurementFlags.CalculatedValue
})
.ToList());
}
protected IMeasurement GetMeasurement(FieldMapping fieldMapping)
{
IMeasurement measurement;
if (fieldMapping.RelativeTime != 0.0M)
{
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(fieldMapping);
MeasurementKey key = m_keys[m_keyIndex++].Single();
measurement = AlignmentCoordinator.GetMeasurement(key, CurrentFrameTime, sampleWindow);
}
else
{
measurement = SignalLookup.GetMeasurement(m_keys[m_keyIndex++].Single());
}
// Set OverRangeError flag if the value of the measurement is NaN and the
// destination field's type does not support NaN; this will set the UnreasonableValue
// flag in the ECA MeasurementFlags of the MetaValues structure
if (IsNaNOrInfinity(measurement.Value) && s_nonNanTypes.Contains($"{fieldMapping.Field.Type.Category}.{fieldMapping.Field.Type.Identifier}"))
{
measurement = new Measurement()
{
Metadata = measurement.Metadata,
Timestamp = measurement.Timestamp,
Value = 0.0D,
StateFlags = measurement.StateFlags | MeasurementStateFlags.OverRangeError
};
}
return(measurement);
}
protected IDictionary <MeasurementKey, IMeasurement> GetRelativeFrame(FieldMapping fieldMapping)
{
IEnumerable <FieldMapping> signalMappings = MappingCompiler.TraverseSignalMappings(fieldMapping);
MeasurementKey[] keys = signalMappings.SelectMany(mapping => SignalLookup.GetMeasurementKeys(mapping.Expression)).ToArray();
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(fieldMapping);
return(AlignmentCoordinator.GetFrame(keys, CurrentFrameTime, sampleWindow));
}
/// <summary>
/// Creates a sample window defined by the given field mapping.
/// </summary>
/// <param name="fieldMapping">The mapping that defines the parameters for the sample window.</param>
/// <returns>The sample window defined by the given field mapping.</returns>
protected AlignmentCoordinator.SampleWindow CreateSampleWindow(FieldMapping fieldMapping)
{
decimal relativeTime = fieldMapping.RelativeTime;
TimeSpan relativeUnit = fieldMapping.RelativeUnit;
decimal sampleRate = fieldMapping.SampleRate;
TimeSpan sampleUnit = fieldMapping.SampleUnit;
return(AlignmentCoordinator.CreateSampleWindow(relativeTime, relativeUnit, sampleRate, sampleUnit));
}
protected IMeasurement GetMeasurement(FieldMapping fieldMapping)
{
if (fieldMapping.RelativeTime != 0.0M)
{
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(fieldMapping);
MeasurementKey key = Keys[m_keyIndex++].Single();
return(AlignmentCoordinator.GetMeasurement(key, CurrentFrameTime, sampleWindow));
}
return(SignalLookup.GetMeasurement(Keys[m_keyIndex++].Single()));
}
protected int GetArrayMeasurementCount(ArrayMapping arrayMapping)
{
Lazy <bool> isNanType = new Lazy <bool>(() =>
{
DataType underlyingType = (arrayMapping.Field.Type as ArrayType)?.UnderlyingType;
return(!s_nonNanTypes.Contains($"{underlyingType?.Category}.{underlyingType?.Identifier}"));
});
// Set OverRangeError flag if the value of the measurement is NaN and the
// destination field's type does not support NaN; this will set the UnreasonableValue
// flag in the ECA MeasurementFlags of the MetaValues structure
Func <IMeasurement, IMeasurement> toNotNan = measurement => new Measurement()
{
Metadata = measurement.Metadata,
Timestamp = measurement.Timestamp,
Value = 0.0D,
StateFlags = measurement.StateFlags | MeasurementStateFlags.OverRangeError
};
if (arrayMapping.WindowSize != 0.0M)
{
// native[] where each array element is the same mapping, but represent different times
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(arrayMapping);
m_cachedMeasurements = AlignmentCoordinator
.GetMeasurements(m_keys[m_keyIndex++].Single(), CurrentFrameTime, sampleWindow)
.Select(measurement => (!IsNaNOrInfinity(measurement.Value) || isNanType.Value) ? measurement : toNotNan(measurement))
.ToArray();
}
else if (arrayMapping.RelativeTime != 0.0M)
{
// native[] where each array element is the same time (relative to now), but represent different mappings
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(arrayMapping);
m_cachedMeasurements = m_keys[m_keyIndex++]
.Select(key => AlignmentCoordinator.GetMeasurement(key, CurrentFrameTime, sampleWindow))
.Select(measurement => (!IsNaNOrInfinity(measurement.Value) || isNanType.Value) ? measurement : toNotNan(measurement))
.ToArray();
}
else
{
// native[] where each array element is the same time, but represent different mappings
m_cachedMeasurements = SignalLookup.GetMeasurements(m_keys[m_keyIndex++])
.Select(measurement => (!IsNaNOrInfinity(measurement.Value) || isNanType.Value) ? measurement : toNotNan(measurement))
.ToArray();
}
return(m_cachedMeasurements.Length);
}
protected MetaValues CreateMetaValues(FieldMapping fieldMapping)
{
if (fieldMapping.RelativeTime != 0.0M)
{
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(fieldMapping);
MeasurementKey key = m_keys[m_keyIndex++].Single();
return(AlignmentCoordinator.CreateMetaValue(key, CurrentFrameTime, sampleWindow));
}
return(new MetaValues()
{
ID = m_keys[m_keyIndex++].Single().SignalID,
Timestamp = m_currentFrameTime,
Flags = MeasurementFlags.CalculatedValue
});
}
/// <summary>
/// Creates a new <see cref="MapperBase"/>.
/// </summary>
/// <param name="framework">Container object for framework elements.</param>
/// <param name="inputMapping">Input mapping name.</param>
protected MapperBase(Framework framework, string inputMapping)
{
m_signalLookup = framework.SignalLookup;
m_alignmentCoordinator = framework.AlignmentCoordinator;
m_signalBuffers = framework.SignalBuffers;
UDTCompiler udtCompiler = new UDTCompiler();
m_mappingCompiler = new MappingCompiler(udtCompiler);
udtCompiler.Compile(Path.Combine("Model", "UserDefinedTypes.ecaidl"));
m_mappingCompiler.Compile(Path.Combine("Model", "UserDefinedMappings.ecamap"));
m_keys = new List <MeasurementKey[]>();
m_readonlyKeys = m_keys.AsReadOnly();
m_inputMapping = inputMapping;
}
protected int GetArrayMeasurementCount(ArrayMapping arrayMapping)
{
if (arrayMapping.WindowSize != 0.0M)
{
// native[] where each array element is the same mapping, but represent different times
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(arrayMapping);
m_cachedMeasurements = AlignmentCoordinator.GetMeasurements(Keys[m_keyIndex++].Single(), CurrentFrameTime, sampleWindow).ToArray();
}
else if (arrayMapping.RelativeTime != 0.0M)
{
// native[] where each array element is the same time (relative to now), but represent different mappings
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(arrayMapping);
m_cachedMeasurements = Keys[m_keyIndex++].Select(key => AlignmentCoordinator.GetMeasurement(key, CurrentFrameTime, sampleWindow)).ToArray();
}
else
{
// native[] where each array element is the same time, but represent different mappings
m_cachedMeasurements = SignalLookup.GetMeasurements(Keys[m_keyIndex++]);
}
return(m_cachedMeasurements.Length);
}
protected IDictionary <MeasurementKey, IMeasurement> GetRelativeFrame(FieldMapping fieldMapping)
{
MeasurementKey[] keys = m_timeWindowKeys[m_timeWindowKeyIndex++];
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(fieldMapping);
return(AlignmentCoordinator.GetFrame(keys, CurrentFrameTime, sampleWindow));
}
protected List <IDictionary <MeasurementKey, IMeasurement> > GetWindowFrames(ArrayMapping arrayMapping)
{
MeasurementKey[] keys = m_timeWindowKeys[m_timeWindowKeyIndex++];
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(arrayMapping);
return(AlignmentCoordinator.GetFrames(keys, CurrentFrameTime, sampleWindow));
}
