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)
{
// 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);
}
protected object GetPropertyExpression(TranslationContext context, ASTNode node, string path)
{
var result = new CREFModel.PropertyExpression();
result.Path = path;
if (node.Children.Count > 0)
{
result.Item = context.TranslateNode(node.Children[0]);
}
return result;
}
protected object GetPropertyExpression(TranslationContext context, ASTNode node, string path)
{
var result = new CREFModel.PropertyExpression();
result.Path = path;
if (node.Children.Count > 0)
{
result.Item = context.TranslateNode(node.Children[0]);
}
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)
{
// 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)
{
// 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;
}
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;
}
