/// <summary>
/// Returns whether or not the uri refers to a WebInvoke service operation call
/// </summary>
/// <param name="uri">The uri to extend</param>
/// <returns>whether or not the uri refers to a WebInvoke service operation call</returns>
public static bool IsWebInvokeServiceOperation(this ODataUri uri)
{
if (uri.IsServiceOperation())
{
ODataUriSegment functionSegment = uri.Segments.First(s => s is FunctionSegment);
return(functionSegment.CheckSegment <FunctionSegment>(f => f.Function.Annotations.OfType <LegacyServiceOperationAnnotation>().Single().Method == Http.HttpVerb.Post));
}
return(false);
}
/// <summary>
/// Gets the expected payload type for a request to the given uri
/// </summary>
/// <param name="requestUri">The request uri</param>
/// <returns>The expected payload type</returns>
public static ODataPayloadElementType GetExpectedPayloadType(this ODataUri requestUri)
{
if (requestUri.Segments.OfType <UnrecognizedSegment>().Any())
{
return(ODataPayloadElementType.Unknown);
}
if (requestUri.IsMetadata())
{
return(ODataPayloadElementType.MetadataPayloadElement);
}
if (requestUri.IsBatch())
{
return(ODataPayloadElementType.BatchResponsePayload);
}
if (requestUri.IsCount() || requestUri.IsPropertyValue() || requestUri.IsMediaResource() || requestUri.IsNamedStream())
{
return(ODataPayloadElementType.PrimitiveValue);
}
if (requestUri.IsEntity())
{
return(ODataPayloadElementType.EntityInstance);
}
if (requestUri.IsEntitySet())
{
return(ODataPayloadElementType.EntitySetInstance);
}
if (requestUri.IsEntityReferenceLink())
{
return(requestUri.GetExpectedLinkPayloadType());
}
if (requestUri.IsProperty())
{
var property = requestUri.Segments.OfType <PropertySegment>().Last();
return(property.Property.GetExpectedPayloadType());
}
if (requestUri.IsServiceOperation() || requestUri.IsAction())
{
var serviceOp = requestUri.Segments.OfType <FunctionSegment>().Last();
return(serviceOp.Function.GetExpectedPayloadType());
}
return(ODataPayloadElementType.Unknown);
}
/// <summary>
/// Generates the expected next link for a top-level feed
/// </summary>
/// <param name="requestUri">The request URI.</param>
/// <param name="pageSize">The page size.</param>
/// <param name="lastEntityValue">The last entity value.</param>
/// <returns>
/// The expected next link
/// </returns>
public string GenerateNextLink(ODataUri requestUri, int pageSize, QueryStructuralValue lastEntityValue)
{
ExceptionUtilities.CheckArgumentNotNull(requestUri, "requestUri");
ExceptionUtilities.CheckArgumentNotNull(lastEntityValue, "lastEntityValue");
var queryBasedUri = requestUri as QueryBasedODataUri;
ExceptionUtilities.CheckObjectNotNull(queryBasedUri, "Only uris which were generated from queries are supported");
var skipTokenValues = new List<object>();
foreach (var keySelector in queryBasedUri.OrderByExpressions.SelectMany(o => o.KeySelectors))
{
skipTokenValues.Add(this.EvaluateLambdaForEntity(lastEntityValue, keySelector));
}
foreach (var keyProperty in lastEntityValue.Type.Properties.Where(p => p.IsPrimaryKey))
{
skipTokenValues.Add(lastEntityValue.GetScalarValue(keyProperty.Name).Value);
}
var skiptoken = this.BuildSkipTokenFromValues(skipTokenValues);
// copy request uri segments exactly
var nextLinkUri = new ODataUri(requestUri.Segments);
// copy over $orderby, $filter, $expand, $select, and $inlinecount
nextLinkUri.OrderBy = ModifyQueryOptionToMatchProduct(requestUri.OrderBy);
nextLinkUri.Filter = ModifyQueryOptionToMatchProduct(requestUri.Filter);
nextLinkUri.ExpandSegments = requestUri.ExpandSegments;
nextLinkUri.SelectSegments = requestUri.SelectSegments;
string inlineCountValue;
if (requestUri.TryGetInlineCountValue(out inlineCountValue))
{
nextLinkUri.InlineCount = inlineCountValue;
}
// add the $skiptoken generated above
nextLinkUri.SkipToken = skiptoken;
// generate a new $top value
if (requestUri.Top.HasValue)
{
var top = requestUri.Top.Value - pageSize;
if (top > 0)
{
nextLinkUri.Top = top;
}
}
if (requestUri.IsServiceOperation())
{
var functionSegment = requestUri.Segments.OfType<FunctionSegment>().Last();
foreach (var paramName in functionSegment.Function.Parameters.Select(p => p.Name))
{
string paramValue;
if (requestUri.CustomQueryOptions.TryGetValue(paramName, out paramValue))
{
nextLinkUri.CustomQueryOptions[paramName] = paramValue;
}
}
}
return this.UriToStringConverter.ConvertToString(nextLinkUri);
}
/// <summary>
/// Builds the ODataPayloadContext context from OODataUri.
/// </summary>
/// <param name="uri">The URI.</param>
/// <returns>A OData Payload Context</returns>
public static ODataPayloadContext BuildODataPayloadContextFromODataUri(ODataUri uri)
{
var payloadContext = new ODataPayloadContext();
payloadContext.PayloadUri = uri;
payloadContext.ExpectedPayloadKind = uri.GetExpectedPayloadType();
switch (payloadContext.ExpectedPayloadKind)
{
case ODataPayloadElementType.EntitySetInstance:
case ODataPayloadElementType.EntityInstance:
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
break;
case ODataPayloadElementType.PrimitiveProperty:
case ODataPayloadElementType.PrimitiveMultiValueProperty:
case ODataPayloadElementType.ComplexProperty:
case ODataPayloadElementType.ComplexMultiValueProperty:
case ODataPayloadElementType.EmptyCollectionProperty:
var propertySegment = uri.Segments.OfType <PropertySegment>().LastOrDefault();
if (propertySegment != null)
{
payloadContext.ExpectedMemberProperty = propertySegment.Property;
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
var parentPropertySegment = uri.Segments.GetSecondToLastOrDefault <PropertySegment>();
if (parentPropertySegment != null)
{
var collectionDataType = parentPropertySegment.Property.PropertyType as CollectionDataType;
if (collectionDataType != null)
{
var elementComplexDataType = collectionDataType.ElementDataType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(elementComplexDataType, "Expected non complex DataType");
payloadContext.ExpectedPropertyDeclaringParentType = elementComplexDataType.Definition;
}
else
{
var complexDataType = parentPropertySegment.Property.PropertyType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(complexDataType, "Expected non null complex DataType");
payloadContext.ExpectedPropertyDeclaringParentType = complexDataType.Definition;
}
}
else
{
payloadContext.ExpectedPropertyDeclaringParentType = payloadContext.ExpectedEntityType;
}
}
else
{
ExceptionUtilities.Assert(
uri.IsFunction() || uri.IsServiceOperation() || uri.IsAction(),
"Property uri contains no property segments and is not a function/service operation/action.");
var functionSegment = uri.Segments.Last() as FunctionSegment ?? uri.Segments[uri.Segments.Count - 2] as FunctionSegment;
ExceptionUtilities.CheckObjectNotNull(functionSegment, "Failed to find function segment in finction/service operation uri");
payloadContext.ExpectedFunction = functionSegment.Function;
}
break;
case ODataPayloadElementType.DeferredLink:
case ODataPayloadElementType.LinkCollection:
var navigationSegment = uri.Segments.OfType <NavigationSegment>().Last();
ExceptionUtilities.CheckObjectNotNull(navigationSegment, "No navigation segments found for expected navigation property uri");
payloadContext.ExpectedNavigationProperty = navigationSegment.NavigationProperty;
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
break;
}
return(payloadContext);
}
/// <summary>
/// Builds the ODataPayloadContext context from OODataUri.
/// </summary>
/// <param name="uri">The URI.</param>
/// <returns>A OData Payload Context</returns>
public static ODataPayloadContext BuildODataPayloadContextFromODataUri(ODataUri uri)
{
var payloadContext = new ODataPayloadContext();
payloadContext.PayloadUri = uri;
payloadContext.ExpectedPayloadKind = uri.GetExpectedPayloadType();
switch (payloadContext.ExpectedPayloadKind)
{
case ODataPayloadElementType.EntitySetInstance:
case ODataPayloadElementType.EntityInstance:
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
break;
case ODataPayloadElementType.PrimitiveProperty:
case ODataPayloadElementType.PrimitiveMultiValueProperty:
case ODataPayloadElementType.ComplexProperty:
case ODataPayloadElementType.ComplexMultiValueProperty:
case ODataPayloadElementType.EmptyCollectionProperty:
var propertySegment = uri.Segments.OfType<PropertySegment>().LastOrDefault();
if (propertySegment != null)
{
payloadContext.ExpectedMemberProperty = propertySegment.Property;
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
var parentPropertySegment = uri.Segments.GetSecondToLastOrDefault<PropertySegment>();
if (parentPropertySegment != null)
{
var collectionDataType = parentPropertySegment.Property.PropertyType as CollectionDataType;
if (collectionDataType != null)
{
var elementComplexDataType = collectionDataType.ElementDataType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(elementComplexDataType, "Expected non complex DataType");
payloadContext.ExpectedPropertyDeclaringParentType = elementComplexDataType.Definition;
}
else
{
var complexDataType = parentPropertySegment.Property.PropertyType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(complexDataType, "Expected non null complex DataType");
payloadContext.ExpectedPropertyDeclaringParentType = complexDataType.Definition;
}
}
else
{
payloadContext.ExpectedPropertyDeclaringParentType = payloadContext.ExpectedEntityType;
}
}
else
{
ExceptionUtilities.Assert(
uri.IsFunction() || uri.IsServiceOperation() || uri.IsAction(),
"Property uri contains no property segments and is not a function/service operation/action.");
var functionSegment = uri.Segments.Last() as FunctionSegment ?? uri.Segments[uri.Segments.Count - 2] as FunctionSegment;
ExceptionUtilities.CheckObjectNotNull(functionSegment, "Failed to find function segment in finction/service operation uri");
payloadContext.ExpectedFunction = functionSegment.Function;
}
break;
case ODataPayloadElementType.DeferredLink:
case ODataPayloadElementType.LinkCollection:
var navigationSegment = uri.Segments.OfType<NavigationSegment>().Last();
ExceptionUtilities.CheckObjectNotNull(navigationSegment, "No navigation segments found for expected navigation property uri");
payloadContext.ExpectedNavigationProperty = navigationSegment.NavigationProperty;
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
break;
}
return payloadContext;
}