public object Translate(TranslationContext context, ASTNode node)
{
// As long as this is list containment, it can be translated using an Exists(Filter(Collection, Condition(Current = Element)));
var collectionNode = node.Children.FirstOrDefault(c => c.Name == "collection");
var elementNode = node.Children.FirstOrDefault(c => c.Name == "element");
if (elementNode.ResultType is ListType)
{
throw new NotSupportedException("In translation with an element of type list is not supported because there is no equivalent CREF representation.");
}
var filter = new CREFModel.FilterExpression();
filter.Items.Add(context.TranslateNode(collectionNode));
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
// Assumption: A property expression with no path specified is equivalent to a "current" reference
var property = new CREFModel.PropertyExpression();
condition.Items.Add(property);
condition.Items.Add(context.TranslateNode(elementNode));
var exists = new CREFModel.UnaryExpression();
exists.Operator = CREFModel.UnaryOperator.opExists;
exists.OperatorSpecified = true;
exists.Item = filter;
return(exists);
}
public object Translate(TranslationContext context, ASTNode node)
{
// As long as this is list containment, it can be translated using an Exists(Filter(Source, Condition(Current = Value)));
// TODO: Contains on a date interval could be translated as well
var sourceNode = node.Children.FirstOrDefault(c => c.Name == "source");
var elementNode = node.Children.FirstOrDefault(c => c.Name == "element");
if (sourceNode.ResultType is IntervalType)
{
throw new NotImplementedException("Contains translation with Interval source is not yet supported.");
}
var filter = new CREFModel.FilterExpression();
filter.Items.Add(context.TranslateNode(sourceNode));
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
// Assumption: A property expression with no path specified is equivalent to a "current" reference
var property = new CREFModel.PropertyExpression();
condition.Items.Add(property);
condition.Items.Add(context.TranslateNode(elementNode));
var exists = new CREFModel.UnaryExpression();
exists.Operator = CREFModel.UnaryOperator.opExists;
exists.OperatorSpecified = true;
exists.Item = filter;
return(exists);
}
public object Translate(TranslationContext context, ASTNode node)
{
var result = new CREFModel.BinaryExpression();
result.Operator = GetOperator();
result.OperatorSpecified = true;
foreach (var child in node.Children)
{
result.Items.Add(context.TranslateNode(child));
}
return result;
}
private object GetRelatedClinicalStatement(TranslationContext context, ASTNode node, string idPropertyName, CREFModel.PatientQueryType type)
{
var propertyNode = GetRelatedClinicalStatementPropertyNode(node);
if (propertyNode == null)
{
throw new InvalidOperationException("Could not resolve related clinical statement property access node.");
}
var id = new CREFModel.PropertyExpression();
var source = propertyNode.Children.FirstOrDefault();
if (source != null)
{
id.Item = context.TranslateNode(source);
}
id.Path = idPropertyName;
var request = new CREFModel.RequestExpression();
request.Cardinality = CREFModel.RequestCardinality.Multiple;
request.CardinalitySpecified = true;
request.Type = type;
request.TypeSpecified = true;
var filter = new CREFModel.FilterExpression();
filter.Items.Add(request);
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
var idReference = new CREFModel.PropertyExpression();
idReference.Path = "ID";
condition.Items.Add(idReference);
condition.Items.Add(id);
filter.Items.Add(condition);
var first = new CREFModel.UnaryExpression();
first.Item = filter;
first.Operator = CREFModel.UnaryOperator.opFirst;
first.OperatorSpecified = true;
return(first);
}
public object Translate(TranslationContext context, ASTNode node)
{
var result = new CREFModel.BinaryExpression();
result.Operator = GetOperator();
result.OperatorSpecified = true;
foreach (var child in node.Children)
{
result.Items.Add(context.TranslateNode(child));
}
return(result);
}
public object Translate(TranslationContext context, ASTNode node)
{
// Ideally, this would be expressed as an InValueSet expression within CREF, but in the absence of such an operator, the translation
// Can be supporting using: Exists(Filter(ValueSet(ValueSetId), Condition(Current = Operand)))
var valueSetId = node.GetAttribute <string>("id");
var valueSetVersion = node.GetAttribute <string>("version");
var valueSetAuthority = node.GetAttribute <string>("authority"); // TODO: Authority resolution?
var operand = node.Children.FirstOrDefault(c => c.Name == "operand");
var valueSetExpression = new CREFModel.ValueSetExpression();
valueSetExpression.ValueSetID = valueSetId;
if (!String.IsNullOrEmpty(valueSetVersion))
{
valueSetExpression.Version = Convert.ToInt32(valueSetVersion);
valueSetExpression.VersionSpecified = true;
}
var filter = new CREFModel.FilterExpression();
filter.Items.Add(valueSetExpression);
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
// Assumption: A property expression with no path specified is equivalent to a "current" reference
var property = new CREFModel.PropertyExpression();
condition.Items.Add(property);
condition.Items.Add(context.TranslateNode(operand));
var exists = new CREFModel.UnaryExpression();
exists.Operator = CREFModel.UnaryOperator.opExists;
exists.OperatorSpecified = true;
exists.Item = filter;
return(exists);
}
protected object GetCalculateAgeExpression(TranslationContext context, object result)
{
var calculateAge = new CREFModel.CalculateAge();
calculateAge.Items.Add(result);
var binaryExpression = new CREFModel.BinaryExpression();
// Returns as years, so multiply by days/year to get consistent results with the physical quantity translator
binaryExpression.Operator = CREFModel.BinaryOperator.opMultiply;
binaryExpression.OperatorSpecified = true;
binaryExpression.Items.Add(calculateAge);
var multiplier = new CREFModel.ValueExpression();
multiplier.Type = CREFModel.ValueType.Decimal;
multiplier.TypeSpecified = true;
multiplier.Value = Convert.ToString(365.25m);
binaryExpression.Items.Add(multiplier);
return binaryExpression;
}
protected object GetCalculateAgeExpression(TranslationContext context, object result)
{
var calculateAge = new CREFModel.CalculateAge();
calculateAge.Items.Add(result);
var binaryExpression = new CREFModel.BinaryExpression();
// Returns as years, so multiply by days/year to get consistent results with the physical quantity translator
binaryExpression.Operator = CREFModel.BinaryOperator.opMultiply;
binaryExpression.OperatorSpecified = true;
binaryExpression.Items.Add(calculateAge);
var multiplier = new CREFModel.ValueExpression();
multiplier.Type = CREFModel.ValueType.Decimal;
multiplier.TypeSpecified = true;
multiplier.Value = Convert.ToString(365.25m);
binaryExpression.Items.Add(multiplier);
return(binaryExpression);
}
public object Translate(TranslationContext context, ASTNode node)
{
var result = new CREFModel.Choice();
var comparand = node.Children.FirstOrDefault(n => n.Name == "comparand");
foreach (var caseItem in ((Node)node).Children.Where(n => n.Name == "caseItem"))
{
var whenNode = caseItem.Children[0] as ASTNode;
var thenNode = caseItem.Children[1] as ASTNode;
var condition = new CREFModel.Condition();
if (comparand == null)
{
condition.Items.Add(context.TranslateNode(whenNode));
}
else
{
var equal = new CREFModel.BinaryExpression();
equal.Operator = CREFModel.BinaryOperator.opEqual;
equal.OperatorSpecified = true;
equal.Items.Add(context.TranslateNode(comparand));
equal.Items.Add(context.TranslateNode(whenNode));
condition.Items.Add(equal);
}
condition.Items.Add(context.TranslateNode(thenNode));
result.Items.Add(condition);
}
var elseNode = node.Children.FirstOrDefault(n => n.Name == "else") as ASTNode;
result.Items.Add(context.TranslateNode(elseNode));
return(result);
}
public object Translate(TranslationContext context, ASTNode node)
{
// Ideally, this would be expressed as an InValueSet expression within CREF, but in the absence of such an operator, the translation
// Can be supporting using: Exists(Filter(ValueSet(ValueSetId), Condition(Current = Operand)))
var valueSetId = node.GetAttribute<string>("id");
var valueSetVersion = node.GetAttribute<string>("version");
var valueSetAuthority = node.GetAttribute<string>("authority"); // TODO: Authority resolution?
var operand = node.Children.FirstOrDefault(c => c.Name == "operand");
var valueSetExpression = new CREFModel.ValueSetExpression();
valueSetExpression.ValueSetID = valueSetId;
if (!String.IsNullOrEmpty(valueSetVersion))
{
valueSetExpression.Version = Convert.ToInt32(valueSetVersion);
valueSetExpression.VersionSpecified = true;
}
var filter = new CREFModel.FilterExpression();
filter.Items.Add(valueSetExpression);
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
// Assumption: A property expression with no path specified is equivalent to a "current" reference
var property = new CREFModel.PropertyExpression();
condition.Items.Add(property);
condition.Items.Add(context.TranslateNode(operand));
var exists = new CREFModel.UnaryExpression();
exists.Operator = CREFModel.UnaryOperator.opExists;
exists.OperatorSpecified = true;
exists.Item = filter;
return exists;
}
public object Translate(TranslationContext context, ASTNode node)
{
// As long as this is list containment, it can be translated using an Exists(Filter(Collection, Condition(Current = Element)));
var collectionNode = node.Children.FirstOrDefault(c => c.Name == "collection");
var elementNode = node.Children.FirstOrDefault(c => c.Name == "element");
if (elementNode.ResultType is ListType)
{
throw new NotSupportedException("In translation with an element of type list is not supported because there is no equivalent CREF representation.");
}
var filter = new CREFModel.FilterExpression();
filter.Items.Add(context.TranslateNode(collectionNode));
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
// Assumption: A property expression with no path specified is equivalent to a "current" reference
var property = new CREFModel.PropertyExpression();
condition.Items.Add(property);
condition.Items.Add(context.TranslateNode(elementNode));
var exists = new CREFModel.UnaryExpression();
exists.Operator = CREFModel.UnaryOperator.opExists;
exists.OperatorSpecified = true;
exists.Item = filter;
return exists;
}
public object Translate(TranslationContext context, ASTNode node)
{
// As long as this is list containment, it can be translated using an Exists(Filter(Source, Condition(Current = Value)));
// TODO: Contains on a date interval could be translated as well
var sourceNode = node.Children.FirstOrDefault(c => c.Name == "source");
var elementNode = node.Children.FirstOrDefault(c => c.Name == "element");
if (sourceNode.ResultType is IntervalType)
{
throw new NotImplementedException("Contains translation with Interval source is not yet supported.");
}
var filter = new CREFModel.FilterExpression();
filter.Items.Add(context.TranslateNode(sourceNode));
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
// Assumption: A property expression with no path specified is equivalent to a "current" reference
var property = new CREFModel.PropertyExpression();
condition.Items.Add(property);
condition.Items.Add(context.TranslateNode(elementNode));
var exists = new CREFModel.UnaryExpression();
exists.Operator = CREFModel.UnaryOperator.opExists;
exists.OperatorSpecified = true;
exists.Item = filter;
return exists;
}
public object Translate(TranslationContext context, ASTNode node)
{
// Model mapping
var result = new CREFModel.RequestExpression();
if (node.ResultType == null)
{
throw new InvalidOperationException("Clinical request expression has no result type.");
}
var cardinality = (RequestCardinality)Enum.Parse(typeof(RequestCardinality), node.Attributes["cardinality"].ToString(), true);
result.Cardinality = cardinality == RequestCardinality.Single ? CREFModel.RequestCardinality.Single : CREFModel.RequestCardinality.Multiple;
result.CardinalitySpecified = true;
var requestListType = node.ResultType as ListType;
var requestType = (requestListType == null ? node.ResultType : requestListType.ElementType) as ObjectType;
if (requestType == null)
{
throw new InvalidOperationException(String.Format("Unable to determine request type from source type: '{0}'.", node.ResultType.Name));
}
result.Type = GetQueryType(context.TransformModelType(requestType));
result.TypeSpecified = true;
// Translate Codes
var codes = node.Children.Where(n => n.Name == "codes").FirstOrDefault();
if (codes != null)
{
var codesResult = context.TranslateNode(codes);
result.Items.Add(codesResult);
}
// Translate DateRange
var dateRange = node.Children.Where(n => n.Name == "dateRange").FirstOrDefault();
if (dateRange != null)
{
var dateRangeResult = context.TranslateNode(dateRange);
result.Items.Add(dateRangeResult);
}
// Validate idProperty, dateProperty, and codeProperty
ValidateIdProperty(requestType, node.GetAttribute<string>("idProperty"));
ValidateDateProperty(requestType, node.GetAttribute<string>("dateProperty"));
ValidateCodeProperty(requestType, node.GetAttribute<string>("codeProperty"));
// Add status filters if necessary
var filterValue = GetStatusFilterValue(requestType);
if (!String.IsNullOrEmpty(filterValue))
{
var filter = new CREFModel.FilterExpression();
filter.Items.Add(result);
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
condition.Items.Add(new CREFModel.PropertyExpression() { Path = "Status" });
condition.Items.Add(new CREFModel.ValueExpression() { Type = CREFModel.ValueType.String, TypeSpecified = true, Value = filterValue });
filter.Items.Add(condition);
return filter;
}
return result;
}
public object Translate(TranslationContext context, ASTNode node)
{
var result = new CREFModel.Choice();
var comparand = node.Children.FirstOrDefault(n => n.Name == "comparand");
foreach (var caseItem in ((Node)node).Children.Where(n => n.Name == "caseItem"))
{
var whenNode = caseItem.Children[0] as ASTNode;
var thenNode = caseItem.Children[1] as ASTNode;
var condition = new CREFModel.Condition();
if (comparand == null)
{
condition.Items.Add(context.TranslateNode(whenNode));
}
else
{
var equal = new CREFModel.BinaryExpression();
equal.Operator = CREFModel.BinaryOperator.opEqual;
equal.OperatorSpecified = true;
equal.Items.Add(context.TranslateNode(comparand));
equal.Items.Add(context.TranslateNode(whenNode));
condition.Items.Add(equal);
}
condition.Items.Add(context.TranslateNode(thenNode));
result.Items.Add(condition);
}
var elseNode = node.Children.FirstOrDefault(n => n.Name == "else") as ASTNode;
result.Items.Add(context.TranslateNode(elseNode));
return result;
}
public object Translate(TranslationContext context, ASTNode node)
{
// Model mapping
var result = new CREFModel.RequestExpression();
if (node.ResultType == null)
{
throw new InvalidOperationException("Clinical request expression has no result type.");
}
var cardinality = (RequestCardinality)Enum.Parse(typeof(RequestCardinality), node.Attributes["cardinality"].ToString(), true);
result.Cardinality = cardinality == RequestCardinality.Single ? CREFModel.RequestCardinality.Single : CREFModel.RequestCardinality.Multiple;
result.CardinalitySpecified = true;
var requestListType = node.ResultType as ListType;
var requestType = (requestListType == null ? node.ResultType : requestListType.ElementType) as ObjectType;
if (requestType == null)
{
throw new InvalidOperationException(String.Format("Unable to determine request type from source type: '{0}'.", node.ResultType.Name));
}
result.Type = GetQueryType(context.TransformModelType(requestType));
result.TypeSpecified = true;
// Translate Codes
var codes = node.Children.Where(n => n.Name == "codes").FirstOrDefault();
if (codes != null)
{
var codesResult = context.TranslateNode(codes);
result.Items.Add(codesResult);
}
// Translate DateRange
var dateRange = node.Children.Where(n => n.Name == "dateRange").FirstOrDefault();
if (dateRange != null)
{
var dateRangeResult = context.TranslateNode(dateRange);
result.Items.Add(dateRangeResult);
}
// Validate idProperty, dateProperty, and codeProperty
ValidateIdProperty(requestType, node.GetAttribute <string>("idProperty"));
ValidateDateProperty(requestType, node.GetAttribute <string>("dateProperty"));
ValidateCodeProperty(requestType, node.GetAttribute <string>("codeProperty"));
// Add status filters if necessary
var filterValue = GetStatusFilterValue(requestType);
if (!String.IsNullOrEmpty(filterValue))
{
var filter = new CREFModel.FilterExpression();
filter.Items.Add(result);
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
condition.Items.Add(new CREFModel.PropertyExpression()
{
Path = "Status"
});
condition.Items.Add(new CREFModel.ValueExpression()
{
Type = CREFModel.ValueType.String, TypeSpecified = true, Value = filterValue
});
filter.Items.Add(condition);
return(filter);
}
return(result);
}
private object GetRelatedClinicalStatement(TranslationContext context, ASTNode node, string idPropertyName, CREFModel.PatientQueryType type)
{
var propertyNode = GetRelatedClinicalStatementPropertyNode(node);
if (propertyNode == null)
{
throw new InvalidOperationException("Could not resolve related clinical statement property access node.");
}
var id = new CREFModel.PropertyExpression();
var source = propertyNode.Children.FirstOrDefault();
if (source != null)
{
id.Item = context.TranslateNode(source);
}
id.Path = idPropertyName;
var request = new CREFModel.RequestExpression();
request.Cardinality = CREFModel.RequestCardinality.Multiple;
request.CardinalitySpecified = true;
request.Type = type;
request.TypeSpecified = true;
var filter = new CREFModel.FilterExpression();
filter.Items.Add(request);
var condition = new CREFModel.BinaryExpression();
condition.Operator = CREFModel.BinaryOperator.opEqual;
condition.OperatorSpecified = true;
var idReference = new CREFModel.PropertyExpression();
idReference.Path = "ID";
condition.Items.Add(idReference);
condition.Items.Add(id);
filter.Items.Add(condition);
var first = new CREFModel.UnaryExpression();
first.Item = filter;
first.Operator = CREFModel.UnaryOperator.opFirst;
first.OperatorSpecified = true;
return first;
}
