private void PopulateIdentifier(ValueSet valueSet, FhirValueSet fhirValueSet)
{
var existingIdentifiers = valueSet.Identifiers.Where(y => y.Type == ValueSetIdentifierTypes.HTTP).ToList();
// Remove HTTP identifiers that are not found in the FHIR ValueSet's identifiers
for (var i = existingIdentifiers.Count - 1; i >= 0; i--)
{
var existingIdentifier = existingIdentifiers[i];
if (!fhirValueSet.Identifier.Any(y => y.Value.ToLower().Trim() == existingIdentifier.Identifier.ToLower().Trim()))
{
this.tdb.ValueSetIdentifiers.Remove(existingIdentifier);
}
}
// Add identifiers from the FHIR ValueSet's identifiers that don't already exist
foreach (var fhirIdentifer in fhirValueSet.Identifier)
{
if (!existingIdentifiers.Any(y => y.Identifier.ToLower().Trim() == fhirIdentifer.Value.ToLower().Trim()))
{
valueSet.Identifiers.Add(new ValueSetIdentifier()
{
Type = ValueSetIdentifierTypes.HTTP,
Identifier = fhirIdentifer.Value
});
}
}
}
public HttpResponseMessage UpdateValueSet(
[FromBody] FhirValueSet fhirValueSet,
[FromUri] int valueSetId,
[FromUri(Name = "_format")] string format = null)
{
ValueSetExporter exporter = new ValueSetExporter(this.tdb);
ValueSetImporter importer = new ValueSetImporter(this.tdb);
ValueSet originalValueSet = this.tdb.ValueSets.Single(y => y.Id == valueSetId);
ValueSet newValueSet = importer.Convert(fhirValueSet, valueSet: originalValueSet);
if (originalValueSet == null)
{
this.tdb.ValueSets.AddObject(newValueSet);
}
this.tdb.SaveChanges();
string location = string.Format("{0}://{1}/api/FHIR3/ValueSet/{2}",
this.Request.RequestUri.Scheme,
this.Request.RequestUri.Authority,
fhirValueSet.Id);
Dictionary <string, string> headers = new Dictionary <string, string>();
headers.Add("Location", location);
FhirValueSet updatedFhirValueSet = exporter.Convert(newValueSet);
return(Shared.GetResponseMessage(this.Request, format, updatedFhirValueSet, originalValueSet != null ? 200 : 201, headers));
}
public HttpResponseMessage CreateValueSet(
[FromBody] FhirValueSet fhirValueSet,
[FromUri(Name = "_format")] string format = null)
{
var foundValueSets = (from vs in this.tdb.ValueSets
join vsi in this.tdb.ValueSetIdentifiers on vs.Id equals vsi.ValueSetId
join fvsi in fhirValueSet.Identifier on vsi.Identifier.ToLower().Trim() equals fvsi.Value.ToLower().Trim()
select vs)
.Distinct();
if (foundValueSets.Count() > 0)
{
throw new Exception("ValueSet already exists with this identifier. Use a PUT instead");
}
ValueSetImporter importer = new ValueSetImporter(this.tdb);
ValueSetExporter exporter = new ValueSetExporter(this.tdb);
ValueSet valueSet = importer.Convert(fhirValueSet);
this.tdb.ValueSets.Add(valueSet);
this.tdb.SaveChanges();
string location = string.Format("{0}://{1}/api/FHIR3/ValueSet/{2}",
this.Request.RequestUri.Scheme,
this.Request.RequestUri.Authority,
fhirValueSet.Id);
Dictionary <string, string> headers = new Dictionary <string, string>();
headers.Add("Location", location);
FhirValueSet createdFhirValueSet = exporter.Convert(valueSet);
return(Shared.GetResponseMessage(this.Request, format, createdFhirValueSet, statusCode: 201, headers: headers));
}
public HttpResponseMessage GetValueSet(
[FromUri] int valueSetId,
[FromUri(Name = "_format")] string format = null,
[FromUri(Name = "_summary")] SummaryType?summary = null)
{
ValueSet valueSet = this.tdb.ValueSets.Single(y => y.Id == valueSetId);
ValueSetExporter exporter = new ValueSetExporter(this.tdb);
FhirValueSet fhirValueSet = exporter.Convert(valueSet, summary);
return(Shared.GetResponseMessage(this.Request, format, fhirValueSet));
}
public HttpResponseMessage CreateValueSet(
[FromBody] FhirValueSet fhirValueSet,
[FromUri(Name = "_format")] string format = null)
{
var fhirIdentifier = fhirValueSet.Identifier.Count > 0 ? fhirValueSet.Identifier.First() : null;
var fhirIdentifierValue = fhirIdentifier != null ? fhirIdentifier.Value : null;
if (fhirValueSet.Identifier != null && this.tdb.ValueSets.Count(y => y.Oid == fhirIdentifierValue) > 0)
{
throw new Exception("ValueSet already exists with this identifier. Use a PUT instead");
}
ValueSetImporter importer = new ValueSetImporter(this.tdb);
ValueSetExporter exporter = new ValueSetExporter(this.tdb);
ValueSet valueSet = importer.Convert(fhirValueSet);
if (valueSet.Oid == null)
{
valueSet.Oid = string.Empty;
}
if (this.tdb.ValueSets.Count(y => y.Oid == valueSet.Oid) > 0)
{
throw new Exception("A ValueSet with that identifier already exists");
}
this.tdb.ValueSets.AddObject(valueSet);
this.tdb.SaveChanges();
string location = string.Format("{0}://{1}/api/FHIR3/ValueSet/{2}",
this.Request.RequestUri.Scheme,
this.Request.RequestUri.Authority,
fhirValueSet.Id);
Dictionary <string, string> headers = new Dictionary <string, string>();
headers.Add("Location", location);
FhirValueSet createdFhirValueSet = exporter.Convert(valueSet);
return(Shared.GetResponseMessage(this.Request, format, createdFhirValueSet, statusCode: 201, headers: headers));
}
/// <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);
}
public ValueSet Convert(FhirValueSet fhirValueSet, ValueSet valueSet = null)
{
string fhirDescription = fhirValueSet.Description != null ? fhirValueSet.Description.Value : null;
if (valueSet == null)
{
valueSet = new ValueSet();
}
if (valueSet.Name != fhirValueSet.Name)
{
valueSet.Name = fhirValueSet.Name;
}
if (valueSet.Description != fhirDescription)
{
valueSet.Description = fhirDescription;
}
if (fhirValueSet.Identifier == null)
{
throw new Exception("ValueSet.identifier.value is required");
}
this.PopulateIdentifier(valueSet, fhirValueSet);
if (fhirValueSet.Expansion != null)
{
foreach (var expContains in fhirValueSet.Expansion.Contains)
{
// Skip members that don't have a code or a code system
if (string.IsNullOrEmpty(expContains.Code) || string.IsNullOrEmpty(expContains.System))
{
continue;
}
CodeSystem codeSystem = this.tdb.CodeSystems.SingleOrDefault(y => y.Oid == expContains.System);
if (codeSystem == null)
{
codeSystem = new CodeSystem()
{
Oid = expContains.System,
Name = expContains.System
};
this.tdb.CodeSystems.Add(codeSystem);
}
ValueSetMember newMember = valueSet.Members.SingleOrDefault(y => y.CodeSystem == codeSystem && y.Code == expContains.Code);
if (newMember == null)
{
newMember = new ValueSetMember()
{
CodeSystem = codeSystem,
Code = expContains.Code
}
}
;
if (newMember.DisplayName != expContains.Display)
{
newMember.DisplayName = expContains.Display;
}
DateTime versionDateVal = DateTime.MinValue;
if (!DateTime.TryParse(fhirValueSet.Version, out versionDateVal))
{
DateTime.TryParse(fhirValueSet.Date, out versionDateVal);
}
DateTime?versionDate = versionDateVal != DateTime.MinValue ? (DateTime?)versionDateVal : null;
if (newMember.StatusDate != versionDate)
{
newMember.StatusDate = versionDate;
}
if (newMember.StatusDate != null && newMember.Status != "active")
{
newMember.Status = "active";
}
valueSet.Members.Add(newMember);
}
}
return(valueSet);
}
}
/// <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);
}
