/// <summary>
/// Get a list of all Coded Concepts from all loaded Context Groups that have the supplied
/// Coding Scheme Designator and Code Value.
/// </summary>
/// <remarks>
/// A dictionary is used internally for this purpose, so this method call should be fast.
/// </remarks>
/// <param name="codingSchemeDesignator">The Coding Scheme Designator.</param>
/// <param name="codeValue">The Code Value.</param>
/// <returns>A (possible empty) list of Coded Concepts.</returns>
public IList<CodedConcept> GetCodedConcepts(string codingSchemeDesignator, string codeValue)
{
List<CodedConcept> codedConcepts = null;
CodingSchemeDesignatorCodeValuePair codingSchemeDesignatorCodeValuePair = new CodingSchemeDesignatorCodeValuePair(codingSchemeDesignator, codeValue);
if (!this.codedConceptDictionary.TryGetValue(codingSchemeDesignatorCodeValuePair, out codedConcepts))
// Key not found and codedConcepts contains null;
{
codedConcepts = new List<CodedConcept>();
}
return (codedConcepts);
}
//
// - Methods -
//
/// <summary>
/// Add a Context Group this this instance.
/// </summary>
/// <param name="contextGroup">The Context Group to add.</param>
private void AddCodedConceptsToDictionary(ContextGroup contextGroup)
{
foreach (CodedConceptOrInclude codedConceptOrInclude in contextGroup.CodedConceptsOrIncludes)
{
if (codedConceptOrInclude is CodedConcept)
{
CodedConcept codedConcept = codedConceptOrInclude as CodedConcept;
CodingSchemeDesignatorCodeValuePair codingSchemeDesignatorCodeValuePair = new CodingSchemeDesignatorCodeValuePair(codedConcept.CodingSchemeDesignator, codedConcept.CodeValue);
List<CodedConcept> codedConcepts = null;
if (this.codedConceptDictionary.TryGetValue(codingSchemeDesignatorCodeValuePair, out codedConcepts))
{
codedConcepts.Add(codedConcept);
}
else
{
codedConcepts = new List<CodedConcept>();
codedConcepts.Add(codedConcept);
this.codedConceptDictionary.Add(codingSchemeDesignatorCodeValuePair, codedConcepts);
}
}
}
}
