public OrderByPropertyNode(Stack<OrderByQueryNode> nodes)
{
if (nodes == null)
{
throw Error.ArgumentNull("nodes");
}
if (nodes.Count == 0)
{
throw new ODataException(SRResources.OrderByNodeNotFound);
}
OrderByQueryNode currentNode = nodes.Pop();
PropertyAccessQueryNode property = currentNode.Expression as PropertyAccessQueryNode;
if (property == null)
{
throw new ODataException(SRResources.OrderByPropertyNotFound);
}
Property = property.Property;
Direction = currentNode.Direction;
if (nodes.Count > 0)
{
ThenBy = new OrderByPropertyNode(nodes);
}
}
private IOrderedQueryable ApplyToCore(IQueryable query)
{
// TODO 463999: [OData] Consider moving OrderByPropertyNode to ODataLib
OrderByPropertyNode props = OrderByPropertyNode.Create(QueryNode);
bool alreadyOrdered = false;
IQueryable querySoFar = query;
HashSet <IEdmProperty> propertiesSoFar = new HashSet <IEdmProperty>();
while (props != null)
{
IEdmProperty property = props.Property;
OrderByDirection direction = props.Direction;
// This check prevents queries with duplicate properties (e.g. $orderby=Id,Id,Id,Id...) from causing stack overflows
if (propertiesSoFar.Contains(property))
{
throw new ODataException(Error.Format(SRResources.OrderByDuplicateProperty, property.Name));
}
propertiesSoFar.Add(property);
querySoFar = ExpressionHelpers.OrderBy(querySoFar, property, direction, Context.EntityClrType, alreadyOrdered);
alreadyOrdered = true;
props = props.ThenBy;
}
return(querySoFar as IOrderedQueryable);
}
public OrderByPropertyNode(Stack <OrderByQueryNode> nodes)
{
if (nodes == null)
{
throw Error.ArgumentNull("nodes");
}
if (nodes.Count == 0)
{
throw new ODataException(SRResources.OrderByNodeNotFound);
}
OrderByQueryNode currentNode = nodes.Pop();
PropertyAccessQueryNode property = currentNode.Expression as PropertyAccessQueryNode;
if (property == null)
{
throw new ODataException(SRResources.OrderByPropertyNotFound);
}
Property = property.Property;
Direction = currentNode.Direction;
if (nodes.Count > 0)
{
ThenBy = new OrderByPropertyNode(nodes);
}
}
public void Constructor_Initializes_Correctly()
{
// Arrange
Mock<IEdmProperty> mockProperty = new Mock<IEdmProperty>();
// Act
OrderByPropertyNode node = new OrderByPropertyNode(mockProperty.Object, OrderByDirection.Descending);
// Assert
Assert.ReferenceEquals(mockProperty.Object, node.Property);
Assert.Equal(OrderByDirection.Descending, node.Direction);
}
public void Constructor_Initializes_Correctly()
{
// Arrange
Mock <IEdmProperty> mockProperty = new Mock <IEdmProperty>();
// Act
OrderByPropertyNode node = new OrderByPropertyNode(mockProperty.Object, OrderByDirection.Descending);
// Assert
Assert.ReferenceEquals(mockProperty.Object, node.Property);
Assert.Equal(OrderByDirection.Descending, node.Direction);
}
private IOrderedQueryable ApplyToCore(IQueryable query)
{
if (Context.ElementClrType == null)
{
throw Error.NotSupported(SRResources.ApplyToOnUntypedQueryOption, "ApplyTo");
}
ICollection <OrderByNode> nodes = OrderByNodes;
bool alreadyOrdered = false;
IQueryable querySoFar = query;
HashSet <IEdmProperty> propertiesSoFar = new HashSet <IEdmProperty>();
bool orderByItSeen = false;
foreach (OrderByNode node in nodes)
{
OrderByPropertyNode propertyNode = node as OrderByPropertyNode;
if (propertyNode != null)
{
IEdmProperty property = propertyNode.Property;
OrderByDirection direction = propertyNode.Direction;
// This check prevents queries with duplicate properties (e.g. $orderby=Id,Id,Id,Id...) from causing stack overflows
if (propertiesSoFar.Contains(property))
{
throw new ODataException(Error.Format(SRResources.OrderByDuplicateProperty, property.Name));
}
propertiesSoFar.Add(property);
querySoFar = ExpressionHelpers.OrderByProperty(querySoFar, property, direction, Context.ElementClrType, alreadyOrdered);
alreadyOrdered = true;
}
else
{
// This check prevents queries with duplicate nodes (e.g. $orderby=$it,$it,$it,$it...) from causing stack overflows
if (orderByItSeen)
{
throw new ODataException(Error.Format(SRResources.OrderByDuplicateIt));
}
querySoFar = ExpressionHelpers.OrderByIt(querySoFar, node.Direction, Context.ElementClrType, alreadyOrdered);
alreadyOrdered = true;
orderByItSeen = true;
}
}
return(querySoFar as IOrderedQueryable);
}
public void Ctor_TakingOrderByClause_InitializesProperty_Property()
{
// Arrange
CustomersModelWithInheritance model = new CustomersModelWithInheritance();
IEdmProperty property = model.Customer.FindProperty("ID");
EntityRangeVariable variable = new EntityRangeVariable("it", model.Customer.AsReference(), model.Customers);
SingleValuePropertyAccessNode node = new SingleValuePropertyAccessNode(new EntityRangeVariableReferenceNode("it", variable), property);
OrderByClause orderBy = new OrderByClause(thenBy: null, expression: node, direction: OrderByDirection.Ascending, rangeVariable: variable);
// Act
OrderByPropertyNode orderByNode = new OrderByPropertyNode(orderBy);
// Assert
Assert.Equal(property, orderByNode.Property);
}
public void Ctor_TakingOrderByClause_InitializesProperty_Property()
{
// Arrange
CustomersModelWithInheritance model = new CustomersModelWithInheritance();
IEdmProperty property = model.Customer.FindProperty("ID");
EntityRangeVariable variable = new EntityRangeVariable("it", model.Customer.AsReference(), model.Customers);
SingleValuePropertyAccessNode node = new SingleValuePropertyAccessNode(new EntityRangeVariableReferenceNode("it", variable), property);
OrderByClause orderBy = new OrderByClause(thenBy: null, expression: node, direction: OrderByDirection.Ascending, rangeVariable: variable);
// Act
OrderByPropertyNode orderByNode = new OrderByPropertyNode(orderBy);
// Assert
Assert.Equal(property, orderByNode.Property);
}
public void CreateCollection_From_OrderByQueryNode_Succeeds()
{
// Arrange
Mock <IEdmTypeReference> mockTypeReference1 = new Mock <IEdmTypeReference>();
Mock <IEdmTypeReference> mockTypeReference2 = new Mock <IEdmTypeReference>();
Mock <IEdmProperty> mockProperty1 = new Mock <IEdmProperty>();
mockProperty1.SetupGet <IEdmTypeReference>(p => p.Type).Returns(mockTypeReference1.Object);
Mock <IEdmProperty> mockProperty2 = new Mock <IEdmProperty>();
mockProperty1.SetupGet <IEdmTypeReference>(p => p.Type).Returns(mockTypeReference2.Object);
PropertyAccessQueryNode propertyAccessQueryNode1 = new PropertyAccessQueryNode()
{
Property = mockProperty1.Object,
};
PropertyAccessQueryNode propertyAccessQueryNode2 = new PropertyAccessQueryNode()
{
Property = mockProperty2.Object,
};
OrderByQueryNode queryNode1 = new OrderByQueryNode()
{
Direction = OrderByDirection.Descending,
Collection = null,
Expression = propertyAccessQueryNode1
};
OrderByQueryNode queryNode2 = new OrderByQueryNode()
{
Direction = OrderByDirection.Ascending,
Collection = queryNode1,
Expression = propertyAccessQueryNode2
};
// Act
ICollection <OrderByPropertyNode> nodes = OrderByPropertyNode.CreateCollection(queryNode2);
// Assert
Assert.Equal(2, nodes.Count);
Assert.ReferenceEquals(mockProperty1.Object, nodes.First().Property);
Assert.Equal(OrderByDirection.Descending, nodes.First().Direction);
Assert.ReferenceEquals(mockProperty2.Object, nodes.Last().Property);
Assert.Equal(OrderByDirection.Ascending, nodes.Last().Direction);
}
public void CreateCollection_From_OrderByNode_Succeeds()
{
// Arrange
ODataConventionModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet <SampleClass>("entityset");
IEdmModel model = builder.GetEdmModel();
IEdmEntityType sampleClassEntityType = model.SchemaElements.Single(t => t.Name == "SampleClass") as IEdmEntityType;
OrderByClause orderbyNode = ODataUriParser.ParseOrderBy("Property1 desc, Property2 asc", model, sampleClassEntityType);
// Act
ICollection <OrderByPropertyNode> nodes = OrderByPropertyNode.CreateCollection(orderbyNode);
// Assert
Assert.Equal(2, nodes.Count);
Assert.Equal("Property1", nodes.First().Property.Name);
Assert.Equal(OrderByDirection.Descending, nodes.First().Direction);
Assert.ReferenceEquals("Property2", nodes.Last().Property.Name);
Assert.Equal(OrderByDirection.Ascending, nodes.Last().Direction);
}
private IOrderedQueryable ApplyToCore(IQueryable query, ODataQuerySettings querySettings)
{
if (Context.ElementClrType == null)
{
throw Error.NotSupported(SRResources.ApplyToOnUntypedQueryOption, "ApplyTo");
}
ICollection <OrderByNode> nodes = OrderByNodes;
bool alreadyOrdered = false;
IQueryable querySoFar = query;
HashSet <IEdmProperty> propertiesSoFar = new HashSet <IEdmProperty>();
bool orderByItSeen = false;
foreach (OrderByNode node in nodes)
{
OrderByPropertyNode propertyNode = node as OrderByPropertyNode;
if (propertyNode != null)
{
IEdmProperty property = propertyNode.Property;
OrderByDirection direction = propertyNode.Direction;
// This check prevents queries with duplicate properties (e.g. $orderby=Id,Id,Id,Id...) from causing stack overflows
if (propertiesSoFar.Contains(property))
{
throw new ODataException(Error.Format(SRResources.OrderByDuplicateProperty, property.Name));
}
propertiesSoFar.Add(property);
if (propertyNode.OrderByClause != null)
{
// Ensure we have decided how to handle null propagation
ODataQuerySettings updatedSettings = querySettings;
if (querySettings.HandleNullPropagation == HandleNullPropagationOption.Default)
{
updatedSettings = new ODataQuerySettings(updatedSettings);
updatedSettings.HandleNullPropagation = HandleNullPropagationOptionHelper.GetDefaultHandleNullPropagationOption(query);
}
LambdaExpression orderByExpression =
FilterBinder.Bind(propertyNode.OrderByClause, Context.ElementClrType, Context.Model, updatedSettings);
querySoFar = ExpressionHelpers.OrderBy(querySoFar, orderByExpression, direction, Context.ElementClrType, alreadyOrdered);
}
else
{
querySoFar = ExpressionHelpers.OrderByProperty(querySoFar, property, direction, Context.ElementClrType, alreadyOrdered);
}
alreadyOrdered = true;
}
else
{
// This check prevents queries with duplicate nodes (e.g. $orderby=$it,$it,$it,$it...) from causing stack overflows
if (orderByItSeen)
{
throw new ODataException(Error.Format(SRResources.OrderByDuplicateIt));
}
querySoFar = ExpressionHelpers.OrderByIt(querySoFar, node.Direction, Context.ElementClrType, alreadyOrdered);
alreadyOrdered = true;
orderByItSeen = true;
}
}
return(querySoFar as IOrderedQueryable);
}
