/// <summary>
/// Converts a Trifolia ValueSet model to a FHIR ValueSet model.
/// </summary>
/// <param name="valueSet">The Trifolia ValueSet model to convert to a FHIR model</param>
/// <param name="summaryType">Does not populate certain fields when a summaryType is specified.</param>
/// <param name="publishedValueSets">Optional list of ValueSets that are used by a published implementation guide. If not specified, queries the database for implementation guides that this value set may be published under.</param>
/// <returns>A FHIR ValueSet model</returns>
public FhirValueSet Convert(ValueSet valueSet, SummaryType?summaryType = null, IEnumerable <ValueSet> publishedValueSets = null)
{
bool usedByPublishedIgs = false;
if (publishedValueSets == null)
{
var implementationGuides = (from tc in valueSet.Constraints
join t in this.tdb.Templates on tc.TemplateId equals t.Id
select t.OwningImplementationGuide);
usedByPublishedIgs = implementationGuides.Count(y => y.PublishStatus != null && y.PublishStatus.IsPublished) > 0;
}
else
{
usedByPublishedIgs = publishedValueSets.Contains(valueSet);
}
FhirValueSet fhirValueSet = new FhirValueSet()
{
Id = valueSet.GetFhirId(),
Name = valueSet.Name,
Status = usedByPublishedIgs ? ConformanceResourceStatus.Active : ConformanceResourceStatus.Draft,
Description = new Markdown(valueSet.Description),
Url = valueSet.Oid
};
if (summaryType == null || summaryType == SummaryType.Data)
{
var activeMembers = valueSet.GetActiveMembers(DateTime.Now);
if (activeMembers.Count > 0)
{
// Compose
var compose = new FhirValueSet.ComposeComponent();
fhirValueSet.Compose = compose;
foreach (var groupedMember in activeMembers.GroupBy(y => y.CodeSystem, y => y))
{
var include = new FhirValueSet.ConceptSetComponent();
compose.Include.Add(include);
include.System = groupedMember.Key.Oid;
foreach (var member in groupedMember)
{
include.Concept.Add(new FhirValueSet.ConceptReferenceComponent()
{
Code = member.Code,
Display = member.DisplayName
});
}
}
// Expansion
var expansion = new FhirValueSet.ExpansionComponent();
expansion.Identifier = string.Format("urn:uuid:{0}", Guid.NewGuid());
expansion.Timestamp = FhirDateTime.Now().ToString();
fhirValueSet.Expansion = expansion;
foreach (ValueSetMember vsMember in activeMembers)
{
var fhirMember = new FhirValueSet.ContainsComponent()
{
System = STU3Helper.FormatIdentifier(vsMember.CodeSystem.Oid),
Code = vsMember.Code,
Display = vsMember.DisplayName
};
expansion.Contains.Add(fhirMember);
}
}
}
return(fhirValueSet);
}
/// <summary>
/// Converts a Trifolia ValueSet model to a FHIR ValueSet model.
/// </summary>
/// <param name="valueSet">The Trifolia ValueSet model to convert to a FHIR model</param>
/// <param name="summaryType">Does not populate certain fields when a summaryType is specified.</param>
/// <param name="publishedValueSets">Optional list of ValueSets that are used by a published implementation guide. If not specified, queries the database for implementation guides that this value set may be published under.</param>
/// <returns>A FHIR ValueSet model</returns>
public FhirValueSet Convert(ValueSet valueSet, SummaryType?summaryType = null, IEnumerable <ValueSet> publishedValueSets = null, string baseUrl = null)
{
bool usedByPublishedIgs = false;
if (publishedValueSets == null)
{
var implementationGuides = (from tc in valueSet.Constraints
join t in this.tdb.Templates on tc.TemplateId equals t.Id
select t.OwningImplementationGuide);
usedByPublishedIgs = implementationGuides.Count(y => y.PublishStatus != null && y.PublishStatus.IsPublished) > 0;
}
else
{
usedByPublishedIgs = publishedValueSets.Contains(valueSet);
}
FhirValueSet fhirValueSet = new FhirValueSet()
{
Meta = new Meta()
{
ElementId = valueSet.Id.ToString()
},
Id = valueSet.GetFhirId(),
Name = valueSet.Name,
Status = usedByPublishedIgs ? PublicationStatus.Active : PublicationStatus.Draft,
Description = new Markdown(valueSet.Description),
Url = valueSet.GetIdentifier(ValueSetIdentifierTypes.HTTP)
};
// Handle urn:oid: and urn:hl7ii: identifiers differently if a base url is provided
// baseUrl is most likely provided when within the context of an implementation guide
if (fhirValueSet.Url != null)
{
if (fhirValueSet.Url.StartsWith("urn:oid:") && !string.IsNullOrEmpty(baseUrl))
{
fhirValueSet.Url = baseUrl.TrimEnd('/') + "/ValueSet/" + fhirValueSet.Url.Substring(8);
}
else if (fhirValueSet.Url.StartsWith("urn:hl7ii:") && !string.IsNullOrEmpty(baseUrl))
{
fhirValueSet.Url = baseUrl.TrimEnd('/') + "/ValueSet/" + fhirValueSet.Url.Substring(10);
}
}
List <ValueSetMember> activeMembers = valueSet.GetActiveMembers(DateTime.Now);
if (activeMembers.Count > 0)
{
// If the value set was created in Trifolia, then Trifolia contains the definition
// and it should be represented by <compose>
if (valueSet.ImportSource == null)
{
// Compose
var compose = new FhirValueSet.ComposeComponent();
fhirValueSet.Compose = compose;
foreach (var groupedMember in activeMembers.GroupBy(y => y.CodeSystem, y => y))
{
var include = new FhirValueSet.ConceptSetComponent();
compose.Include.Add(include);
include.System = groupedMember.Key.Oid;
foreach (var member in groupedMember)
{
include.Concept.Add(new FhirValueSet.ConceptReferenceComponent()
{
Code = member.Code,
Display = member.DisplayName
});
}
}
}
else
{
// If the value set was imported, then we have the expansion,
// but we don't have the defintion (the <compose>).
var expansion = new FhirValueSet.ExpansionComponent();
fhirValueSet.Expansion = expansion;
expansion.Identifier = fhirValueSet.Url;
expansion.Total = activeMembers.Count;
if (valueSet.LastUpdate != null)
{
expansion.TimestampElement = new FhirDateTime(valueSet.LastUpdate.Value);
}
else
{
expansion.TimestampElement = new FhirDateTime(DateTime.Now);
}
expansion.Contains = (from m in activeMembers
select new FhirValueSet.ContainsComponent()
{
System = m.CodeSystem.Oid,
Code = m.Code,
Display = m.DisplayName
}).ToList();
}
}
return(fhirValueSet);
}
