internal static Height ToHeight(this Observation observation)
{
var height = observation.ToThingBase <ItemTypes.Height>();
height.Value = ObservationToHealthVault.GetThingValueFromQuantity <Length>(observation.Value as Quantity);
height.When = ObservationToHealthVault.GetWhenFromEffective(observation.Effective);
return(height);
}
internal static Weight ToWeight(this Observation observation)
{
var weight = observation.ToThingBase <ItemTypes.Weight>();
weight.Value = ObservationToHealthVault.GetThingValueFromQuantity <WeightValue>(observation.Value as Quantity);
weight.When = ObservationToHealthVault.GetWhenFromEffective(observation.Effective);
return(weight);
}
internal static HeartRate ToHeartRate(this Observation observation)
{
var heartRate = observation.ToThingBase <ItemTypes.HeartRate>();
var observationValue = observation.Value as Quantity;
if (observationValue?.Value == null)
{
throw new ArgumentException("Value quantity must have a value.");
}
heartRate.Value = (int)observationValue.Value.Value;
heartRate.When = ObservationToHealthVault.GetWhenFromEffective(observation.Effective);
return(heartRate);
}
internal static BloodGlucose ToBloodGlucose(this Observation observation)
{
var bloodGlucose = observation.ToThingBase <BloodGlucose>();
bloodGlucose.Value = ObservationToHealthVault.GetThingValueFromQuantity <BloodGlucoseMeasurement>(observation.Value as Quantity);
bloodGlucose.When = ObservationToHealthVault.GetWhenFromEffective(observation.Effective);
var bloodGlucoseExtension = observation.GetExtension(HealthVaultExtensions.BloodGlucose);
if (bloodGlucoseExtension != null)
{
bloodGlucose.MeasurementContext = bloodGlucoseExtension.GetExtensionValue <CodeableConcept>(HealthVaultExtensions.BloodGlucoseMeasurementContext).ToCodableValue();
bloodGlucose.OutsideOperatingTemperature = bloodGlucoseExtension.GetBoolExtension(HealthVaultExtensions.OutsideOperatingTemperatureExtensionName);
bloodGlucose.IsControlTest = bloodGlucoseExtension.GetBoolExtension(HealthVaultExtensions.IsControlTestExtensionName);
Normalcy normalcy;
if (Enum.TryParse <Normalcy>(bloodGlucoseExtension.GetStringExtension(HealthVaultExtensions.ReadingNormalcyExtensionName), out normalcy))
{
bloodGlucose.ReadingNormalcy = normalcy;
}
}
if (observation.Code != null && observation.Code.Coding != null)
{
foreach (var code in observation.Code.Coding)
{
if (HealthVaultVocabularies.SystemContainsHealthVaultUrl(code.System))
{
bloodGlucose.GlucoseMeasurementType = observation.Method.ToCodableValue();
}
else
{
bloodGlucose.SetGlucoseMeasurementType(
code.Display,
code.Code,
HealthVaultVocabularies.Fhir,
code.System,
code.Version);
}
}
}
return(bloodGlucose);
}
internal static VitalSigns ToVitalSigns(this Observation observation)
{
var vitalSigns = observation.ToThingBase <VitalSigns>();
vitalSigns.When = ObservationToHealthVault.GetWhenFromEffective(observation.Effective);
foreach (Observation vitalSignObservation in observation.Contained)
{
var vitalSignsResult = new VitalSignsResultType();
vitalSignsResult.Title = vitalSignObservation.Code.ToCodableValue();
if (vitalSignObservation.ReferenceRange?.Count != 0)
{
var referenceRangeValue = vitalSignObservation.ReferenceRange[0];
if (referenceRangeValue == null)
{
throw new ReferenceRangeNullException("Reference Range object must have a range");
}
if (referenceRangeValue.Low != null)
{
vitalSignsResult.ReferenceMinimum = (double)referenceRangeValue.Low.Value;
}
if (referenceRangeValue.High != null)
{
vitalSignsResult.ReferenceMaximum = (double)referenceRangeValue.High.Value;
}
}
var vitalSignValue = vitalSignObservation.Value as Quantity;
if (vitalSignValue?.Value == null)
{
throw new ArgumentException("Value quantity must have a value.");
}
vitalSignsResult.Value = (int)vitalSignValue.Value.Value;
var vitalSignsUnitExtension = vitalSignValue.GetExtension(HealthVaultExtensions.CodableUnit);
vitalSignsResult.Unit = vitalSignsUnitExtension.GetExtensionValue <CodeableConcept>(HealthVaultExtensions.CodableUnit).ToCodableValue();
}
return(vitalSigns);
}
internal static BloodPressure ToBloodPressure(this Observation observation)
{
var bloodPressure = observation.ToThingBase <BloodPressure>();
bloodPressure.When = ObservationToHealthVault.GetWhenFromEffective(observation.Effective);
bloodPressure.IrregularHeartbeatDetected = observation.GetBoolExtension(HealthVaultVocabularies.IrregularHeartBeatExtensionName);
if (observation.Component != null)
{
foreach (var component in observation.Component)
{
if (component.Code != null && component.Code.Coding != null)
{
foreach (var code in component.Code.Coding)
{
if (code.Code != null)
{
if (HealthVaultVocabularies.SystemContainsHealthVaultUrl(code.System))
{
if (code.Code == HealthVaultVitalStatisticsCodes.BloodPressureDiastolic.Code)
{
SetDiastolic(bloodPressure, component);
}
else if (code.Code == HealthVaultVitalStatisticsCodes.BloodPressureSystolic.Code)
{
SetSystolic(bloodPressure, component);
}
else if (code.Code == HealthVaultVitalStatisticsCodes.HeartRate.Code)
{
SetPulse(bloodPressure, component);
}
}
else
{
switch (code.Code.ToLowerInvariant())
{
// HeartRate component
case "8867-4":
SetPulse(bloodPressure, component);
break;
// Systolic LOINC, SNOMED, ACME codes
case "8480-6":
case "271649006":
case "bp-s":
SetSystolic(bloodPressure, component);
break;
// Diastolic LOINC code
case "8462-4":
SetDiastolic(bloodPressure, component);
break;
default:
continue;
}
break;
}
}
}
}
}
}
return(bloodPressure);
}
internal static SleepJournalAM ToSleepJournalAM(this Observation observation)
{
var sleepJournalAm = observation.ToThingBase<SleepJournalAM>();
sleepJournalAm.When = ObservationToHealthVault.GetWhenFromEffective(observation.Effective);
foreach (var component in observation.Component)
{
if (string.IsNullOrEmpty(component.Code?.Text) || component.Value == null)
{
continue;
}
switch (component.Code.Text)
{
case HealthVaultVocabularies.SleepJournalAMBedtime:
if(component.Value.GetType() == typeof(Time))
{
sleepJournalAm.Bedtime = ((Time)component.Value).ToAppoximateTime();
}
break;
case HealthVaultVocabularies.SleepJournalAMWaketime:
if (component.Value.GetType() == typeof(Time))
{
sleepJournalAm.WakeTime = ((Time)component.Value).ToAppoximateTime();
}
break;
case HealthVaultVocabularies.SleepJournalAMSleepMinutes:
if (component.Value.GetType() == typeof(SimpleQuantity))
{
var sleepMinutes = (Quantity)component.Value;
if (sleepMinutes.Value.HasValue)
{
sleepJournalAm.SleepMinutes = (int)sleepMinutes.Value.Value;
}
}
break;
case HealthVaultVocabularies.SleepJournalAMSettlingMinutes:
if (component.Value.GetType() == typeof(SimpleQuantity))
{
var settlingMinutes = (Quantity)component.Value;
if (settlingMinutes.Value.HasValue)
{
sleepJournalAm.SettlingMinutes = (int)settlingMinutes.Value.Value;
}
}
break;
case HealthVaultVocabularies.SleepJournalAMWakeState:
if (component.Value.GetType() == typeof(FhirString))
{
WakeState wakeState;
var wakeStateValue = (FhirString)component.Value;
if (Enum.TryParse(wakeStateValue.Value, out wakeState))
{
sleepJournalAm.WakeState = wakeState;
}
}
break;
case HealthVaultVocabularies.SleepJournalAMMedication:
if (component.Value.GetType() == typeof(CodeableConcept))
{
sleepJournalAm.Medications = ((CodeableConcept)component.Value).ToCodableValue();
}
break;
case HealthVaultVocabularies.SleepJournalAMAwakening:
if (component.Value.GetType() == typeof(Period))
{
var startTime = ((Period)component.Value).StartElement.ToDateTimeOffset();
var endTime = ((Period)component.Value).EndElement.ToDateTimeOffset();
var approximateTime = new ApproximateTime
{
Hour = startTime.Hour,
Minute = startTime.Minute,
Second = startTime.Second,
Millisecond = startTime.Millisecond
};
var occurrence = new Occurrence
{
When = approximateTime,
Minutes = (endTime - startTime).Minutes
};
sleepJournalAm.Awakenings.Add(occurrence);
}
break;
}
}
return sleepJournalAm;
}
