internal IQueryable ApplyPaging(IQueryable result, ODataQuerySettings querySettings)
{
int pageSize = -1;
if (querySettings.PageSize.HasValue)
{
pageSize = querySettings.PageSize.Value;
}
else if (querySettings.ModelBoundPageSize.HasValue)
{
pageSize = querySettings.ModelBoundPageSize.Value;
}
int preferredPageSize = -1;
if (RequestPreferenceHelpers.RequestPrefersMaxPageSize(Request.Headers, out preferredPageSize))
{
pageSize = Math.Min(pageSize, preferredPageSize);
}
ODataFeature odataFeature = Request.ODataFeature() as ODataFeature;
if (pageSize > 0)
{
bool resultsLimited;
result = LimitResults(result, pageSize, querySettings.EnableConstantParameterization, out resultsLimited);
if (resultsLimited && Request.GetEncodedUrl() != null &&
odataFeature.NextLink == null)
{
odataFeature.PageSize = pageSize;
}
}
odataFeature.QueryOptions = this;
return result;
}
internal IQueryable ApplyPaging(IQueryable result, ODataQuerySettings querySettings)
{
if (!querySettings.PostponePaging)
{
int pageSize = -1;
if (querySettings.PageSize.HasValue)
{
pageSize = querySettings.PageSize.Value;
}
else if (querySettings.ModelBoundPageSize.HasValue)
{
pageSize = querySettings.ModelBoundPageSize.Value;
}
int preferredPageSize = -1;
if (RequestPreferenceHelpers.RequestPrefersMaxPageSize(InternalRequest.Headers, out preferredPageSize))
{
pageSize = Math.Min(pageSize, preferredPageSize);
}
if (pageSize > 0)
{
bool resultsLimited;
result = LimitResults(result, pageSize, querySettings.EnableConstantParameterization, out resultsLimited);
if (resultsLimited && InternalRequest.RequestUri != null &&
InternalRequest.Context.NextLink == null)
{
InternalRequest.Context.PageSize = pageSize;
}
}
}
InternalRequest.Context.QueryOptions = this;
return(result);
}
internal static IODataResponseMessage PrepareResponseMessage(IWebApiRequestMessage internalRequest, IWebApiHeaders internalRequestHeaders, Func <IServiceProvider, ODataMessageWrapper> getODataMessageWrapper)
{
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(internalRequestHeaders);
string annotationFilter = null;
string omitValues = null;
int? maxPageSize = null;
if (!String.IsNullOrEmpty(preferHeader))
{
ODataMessageWrapper messageWrapper = getODataMessageWrapper(null);
messageWrapper.SetHeader(RequestPreferenceHelpers.PreferHeaderName, preferHeader);
annotationFilter = messageWrapper.PreferHeader().AnnotationFilter;
omitValues = messageWrapper.PreferHeader().OmitValues;
maxPageSize = messageWrapper.PreferHeader().MaxPageSize;
}
IODataResponseMessage responseMessage = getODataMessageWrapper(internalRequest.RequestContainer);
if (annotationFilter != null)
{
responseMessage.PreferenceAppliedHeader().AnnotationFilter = annotationFilter;
}
if (omitValues != null)
{
responseMessage.PreferenceAppliedHeader().OmitValues = omitValues;
}
if (maxPageSize != null)
{
responseMessage.PreferenceAppliedHeader().MaxPageSize = maxPageSize;
}
return(responseMessage);
}
public void RequestPrefersMaxPageSize_ReturnsFalse_WithPreferHeader()
{
// Arrange
HeaderDictionary headers = new HeaderDictionary();
// Act & Assert
Assert.False(RequestPreferenceHelpers.RequestPrefersMaxPageSize(headers, out _));
}
internal IHttpActionResult GetInnerActionResult()
{
if (RequestPreferenceHelpers.RequestPrefersReturnNoContent(Request))
{
return(new StatusCodeResult(HttpStatusCode.NoContent, Request));
}
else
{
return(_innerResult);
}
}
internal IHttpActionResult GetInnerActionResult()
{
if (RequestPreferenceHelpers.RequestPrefersReturnContent(new WebApiRequestHeaders(_innerResult.Request.Headers)))
{
return(_innerResult);
}
else
{
return(new StatusCodeResult(HttpStatusCode.NoContent, _innerResult.Request));
}
}
internal IHttpActionResult GetInnerActionResult(HttpRequestMessage request)
{
WebApiRequestHeaders headers = new WebApiRequestHeaders(request.Headers);
if (RequestPreferenceHelpers.RequestPrefersReturnNoContent(headers))
{
return(new StatusCodeResult(HttpStatusCode.NoContent, request));
}
else
{
return(_innerResult);
}
}
/// <summary>
/// Set ContinueOnError based on the request and headers.
/// </summary>
/// <param name="header">The request header.</param>
/// <param name="enableContinueOnErrorHeader">Flag indicating if continue on error header is enabled.</param>
internal void SetContinueOnError(IWebApiHeaders header, bool enableContinueOnErrorHeader)
{
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(header);
if ((preferHeader != null && preferHeader.Contains(PreferenceContinueOnError)) || (!enableContinueOnErrorHeader))
{
ContinueOnError = true;
}
else
{
ContinueOnError = false;
}
}
public void RequestPrefersMaxPageSize_ReturnsPageSize_WithPreferValue(string preferValue)
{
// Arrange
HeaderDictionary headers = new HeaderDictionary(
new Dictionary <string, StringValues>(StringComparer.OrdinalIgnoreCase)
{
{ "Prefer", preferValue }
});
// Act & Assert
Assert.True(RequestPreferenceHelpers.RequestPrefersMaxPageSize(headers, out int pageSize));
Assert.Equal(5, pageSize);
}
internal IActionResult GetInnerActionResult(HttpRequest request)
{
if (RequestPreferenceHelpers.RequestPrefersReturnContent(new WebApiRequestHeaders(request.Headers)))
{
ObjectResult objectResult = new ObjectResult(_innerResult)
{
StatusCode = StatusCodes.Status200OK
};
return(objectResult);
}
else
{
return(new StatusCodeResult((int)HttpStatusCode.NoContent));
}
}
/// <summary>
/// Set ContinueOnError based on the request and headers.
/// </summary>
/// <param name="header">The request header.</param>
/// <param name="enableContinueOnErrorHeader">Flag indicating if continue on error header is enabled.</param>
internal void SetContinueOnError(IHeaderDictionary header, bool enableContinueOnErrorHeader)
{
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(header);
if ((preferHeader != null &&
preferHeader.Contains(PreferenceContinueOnError, StringComparison.OrdinalIgnoreCase) &&
!preferHeader.Contains(PreferenceContinueOnErrorFalse, StringComparison.OrdinalIgnoreCase)) ||
(!enableContinueOnErrorHeader))
{
ContinueOnError = true;
}
else
{
ContinueOnError = false;
}
}
// internal just for unit test.
internal IActionResult GetInnerActionResult(HttpRequest request)
{
if (RequestPreferenceHelpers.RequestPrefersReturnNoContent(request.Headers))
{
return(new StatusCodeResult((int)HttpStatusCode.NoContent));
}
else
{
ObjectResult objectResult = new ObjectResult(Entity)
{
StatusCode = StatusCodes.Status201Created
};
return(objectResult);
}
}
/// <inheritdoc/>
public override async Task <HttpResponseMessage> ProcessBatchAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
if (request == null)
{
throw Error.ArgumentNull("request");
}
ValidateRequest(request);
IList <ODataBatchRequestItem> subRequests = await ParseBatchRequestsAsync(request, cancellationToken);
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(request);
if ((preferHeader != null && preferHeader.Contains(PreferenceContinueOnError)) || (!request.GetConfiguration().HasEnabledContinueOnErrorHeader()))
{
ContinueOnError = true;
}
else
{
ContinueOnError = false;
}
try
{
IList <ODataBatchResponseItem> responses = await ExecuteRequestMessagesAsync(subRequests, cancellationToken);
return(await CreateResponseMessageAsync(responses, request, cancellationToken));
}
finally
{
foreach (ODataBatchRequestItem subRequest in subRequests)
{
request.RegisterForDispose(subRequest.GetResourcesForDisposal());
request.RegisterForDispose(subRequest);
}
}
}
internal static object ReadFromStream(
#endif
Type type,
object defaultValue,
IEdmModel model,
ODataVersion version,
Uri baseAddress,
IWebApiRequestMessage internalRequest,
Func <IODataRequestMessage> getODataRequestMessage,
Func <IEdmTypeReference, ODataDeserializer> getEdmTypeDeserializer,
Func <Type, ODataDeserializer> getODataPayloadDeserializer,
Func <ODataDeserializerContext> getODataDeserializerContext,
Action <IDisposable> registerForDisposeAction,
Action <Exception> logErrorAction)
{
object result;
IEdmTypeReference expectedPayloadType;
ODataDeserializer deserializer = GetDeserializer(type, internalRequest.Context.Path, model, getEdmTypeDeserializer, getODataPayloadDeserializer, out expectedPayloadType);
if (deserializer == null)
{
throw Error.Argument("type", SRResources.FormatterReadIsNotSupportedForType, type.FullName, typeof(ODataInputFormatterHelper).FullName);
}
try
{
ODataMessageReaderSettings oDataReaderSettings = internalRequest.ReaderSettings;
oDataReaderSettings.BaseUri = baseAddress;
oDataReaderSettings.Validations = oDataReaderSettings.Validations & ~ValidationKinds.ThrowOnUndeclaredPropertyForNonOpenType;
oDataReaderSettings.Version = version;
IODataRequestMessage oDataRequestMessage = getODataRequestMessage();
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(internalRequest.Headers);
string annotationFilter = null;
if (!String.IsNullOrEmpty(preferHeader))
{
oDataRequestMessage.SetHeader(RequestPreferenceHelpers.PreferHeaderName, preferHeader);
annotationFilter = oDataRequestMessage.PreferHeader().AnnotationFilter;
}
if (annotationFilter != null)
{
oDataReaderSettings.ShouldIncludeAnnotation = ODataUtils.CreateAnnotationFilter(annotationFilter);
}
ODataMessageReader oDataMessageReader = new ODataMessageReader(oDataRequestMessage, oDataReaderSettings, model);
registerForDisposeAction(oDataMessageReader);
ODataPath path = internalRequest.Context.Path;
ODataDeserializerContext readContext = getODataDeserializerContext();
readContext.Path = path;
readContext.Model = model;
readContext.ResourceType = type;
readContext.ResourceEdmType = expectedPayloadType;
#if NETCORE
result = await deserializer.ReadAsync(oDataMessageReader, type, readContext);
#else
result = deserializer.Read(oDataMessageReader, type, readContext);
#endif
}
catch (Exception e)
{
logErrorAction(e);
result = defaultValue;
}
return(result);
}
private void WriteToStream(Type type, object value, Stream writeStream, HttpContent content, HttpContentHeaders contentHeaders)
{
IEdmModel model = Request.ODataProperties().Model;
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
ODataSerializer serializer = GetSerializer(type, value, model, _serializerProvider);
UrlHelper urlHelper = Request.GetUrlHelper() ?? new UrlHelper(Request);
ODataPath path = Request.ODataProperties().Path;
IEdmNavigationSource targetNavigationSource = path == null ? null : path.NavigationSource;
// serialize a response
HttpConfiguration configuration = Request.GetConfiguration();
if (configuration == null)
{
throw Error.InvalidOperation(SRResources.RequestMustContainConfiguration);
}
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(Request);
string annotationFilter = null;
if (!String.IsNullOrEmpty(preferHeader))
{
ODataMessageWrapper messageWrapper = new ODataMessageWrapper(writeStream, content.Headers);
messageWrapper.SetHeader(RequestPreferenceHelpers.PreferHeaderName, preferHeader);
annotationFilter = messageWrapper.PreferHeader().AnnotationFilter;
}
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream, content.Headers);
if (annotationFilter != null)
{
responseMessage.PreferenceAppliedHeader().AnnotationFilter = annotationFilter;
}
Uri baseAddress = GetBaseAddress(Request);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings(MessageWriterSettings)
{
PayloadBaseUri = baseAddress,
Version = _version,
};
string metadataLink = urlHelper.CreateODataLink(new MetadataPathSegment());
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
writerSettings.ODataUri = new ODataUri
{
ServiceRoot = baseAddress,
// TODO: 1604 Convert webapi.odata's ODataPath to ODL's ODataPath, or use ODL's ODataPath.
SelectAndExpand = Request.ODataProperties().SelectExpandClause,
Path = (path == null || IsOperationPath(path)) ? null : path.ODLPath,
};
MediaTypeHeaderValue contentType = null;
if (contentHeaders != null && contentHeaders.ContentType != null)
{
contentType = contentHeaders.ContentType;
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
Request = Request,
RequestContext = Request.GetRequestContext(),
Url = urlHelper,
NavigationSource = targetNavigationSource,
Model = model,
RootElementName = GetRootElementName(path) ?? "root",
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Path = path,
MetadataLevel = ODataMediaTypes.GetMetadataLevel(contentType),
SelectExpandClause = Request.ODataProperties().SelectExpandClause
};
serializer.WriteObject(value, type, messageWriter, writeContext);
}
}
internal static void WriteToStream(
Type type,
object value,
IEdmModel model,
ODataVersion version,
Uri baseAddress,
MediaTypeHeaderValue contentType,
IWebApiUrlHelper internaUrlHelper,
IWebApiRequestMessage internalRequest,
IWebApiHeaders internalRequestHeaders,
Func <IServiceProvider, ODataMessageWrapper> getODataMessageWrapper,
Func <IEdmTypeReference, ODataSerializer> getEdmTypeSerializer,
Func <Type, ODataSerializer> getODataPayloadSerializer,
Func <ODataSerializerContext> getODataSerializerContext)
{
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
ODataSerializer serializer = GetSerializer(type, value, internalRequest, getEdmTypeSerializer, getODataPayloadSerializer);
ODataPath path = internalRequest.Context.Path;
IEdmNavigationSource targetNavigationSource = path == null ? null : path.NavigationSource;
// serialize a response
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(internalRequestHeaders);
string annotationFilter = null;
if (!String.IsNullOrEmpty(preferHeader))
{
ODataMessageWrapper messageWrapper = getODataMessageWrapper(null);
messageWrapper.SetHeader(RequestPreferenceHelpers.PreferHeaderName, preferHeader);
annotationFilter = messageWrapper.PreferHeader().AnnotationFilter;
}
IODataResponseMessage responseMessage = getODataMessageWrapper(internalRequest.RequestContainer);
if (annotationFilter != null)
{
responseMessage.PreferenceAppliedHeader().AnnotationFilter = annotationFilter;
}
ODataMessageWriterSettings writerSettings = internalRequest.WriterSettings;
writerSettings.BaseUri = baseAddress;
writerSettings.Version = version;
writerSettings.Validations = writerSettings.Validations & ~ValidationKinds.ThrowOnUndeclaredPropertyForNonOpenType;
string metadataLink = internaUrlHelper.CreateODataLink(MetadataSegment.Instance);
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
//Set this variable if the SelectExpandClause is different from the processed clause on the Query options
SelectExpandClause selectExpandDifferentFromQueryOptions = null;
if (internalRequest.Context.QueryOptions != null && internalRequest.Context.QueryOptions.SelectExpand != null)
{
if (internalRequest.Context.QueryOptions.SelectExpand.ProcessedSelectExpandClause != internalRequest.Context.ProcessedSelectExpandClause)
{
selectExpandDifferentFromQueryOptions = internalRequest.Context.ProcessedSelectExpandClause;
}
}
else if (internalRequest.Context.ProcessedSelectExpandClause != null)
{
selectExpandDifferentFromQueryOptions = internalRequest.Context.ProcessedSelectExpandClause;
}
writerSettings.ODataUri = new ODataUri
{
ServiceRoot = baseAddress,
SelectAndExpand = internalRequest.Context.ProcessedSelectExpandClause,
Apply = internalRequest.Context.ApplyClause,
Path = ConvertPath(path),
};
ODataMetadataLevel metadataLevel = ODataMetadataLevel.MinimalMetadata;
if (contentType != null)
{
IEnumerable <KeyValuePair <string, string> > parameters =
contentType.Parameters.Select(val => new KeyValuePair <string, string>(val.Name, val.Value));
metadataLevel = ODataMediaTypes.GetMetadataLevel(contentType.MediaType, parameters);
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = getODataSerializerContext();
writeContext.NavigationSource = targetNavigationSource;
writeContext.Model = model;
writeContext.RootElementName = GetRootElementName(path) ?? "root";
writeContext.SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.ResourceSet;
writeContext.Path = path;
writeContext.MetadataLevel = metadataLevel;
writeContext.QueryOptions = internalRequest.Context.QueryOptions;
//Set the SelectExpandClause on the context if it was explicitly specified.
if (selectExpandDifferentFromQueryOptions != null)
{
writeContext.SelectExpandClause = selectExpandDifferentFromQueryOptions;
}
serializer.WriteObject(value, type, messageWriter, writeContext);
}
}
private void WriteResponseBody(OutputFormatterContext context)
{
HttpRequest request = context.ActionContext.HttpContext.Request;
HttpResponse response = context.ActionContext.HttpContext.Response;
IEdmModel model = request.ODataProperties().Model;
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
object value = context.Object;
Type type = value.GetType();
ODataSerializer serializer = GetSerializer(type, value, model, new DefaultODataSerializerProvider(), request);
IUrlHelper urlHelper = context.ActionContext.HttpContext.UrlHelper();
ODataPath path = request.ODataProperties().Path;
IEdmNavigationSource targetNavigationSource = path == null ? null : path.NavigationSource;
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(request);
string annotationFilter = null;
if (!String.IsNullOrEmpty(preferHeader))
{
ODataMessageWrapper messageWrapper = new ODataMessageWrapper(response.Body, response.Headers);
messageWrapper.SetHeader(RequestPreferenceHelpers.PreferHeaderName, preferHeader);
annotationFilter = messageWrapper.PreferHeader().AnnotationFilter;
}
IODataResponseMessage responseMessage = new ODataMessageWrapper(response.Body, response.Headers);
if (annotationFilter != null)
{
responseMessage.PreferenceAppliedHeader().AnnotationFilter = annotationFilter;
}
Uri baseAddress = GetBaseAddress(request);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings(_messageWriterSettings)
{
PayloadBaseUri = baseAddress,
Version = ODataProperties.DefaultODataVersion,
};
string metadataLink = urlHelper.CreateODataLink(new MetadataPathSegment());
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
writerSettings.ODataUri = new ODataUri
{
ServiceRoot = baseAddress,
// TODO: 1604 Convert webapi.odata's ODataPath to ODL's ODataPath, or use ODL's ODataPath.
SelectAndExpand = request.ODataProperties().SelectExpandClause,
Path = (path == null || IsOperationPath(path)) ? null : path.ODLPath,
};
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
Request = request,
RequestContext = request.HttpContext,
Url = urlHelper,
NavigationSource = targetNavigationSource,
Model = model,
RootElementName = GetRootElementName(path) ?? "root",
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Path = path,
MetadataLevel = ODataMediaTypes.GetMetadataLevel(context.SelectedContentType),
SelectExpandClause = request.ODataProperties().SelectExpandClause
};
serializer.WriteObject(value, type, messageWriter, writeContext);
}
}
/// <inheritdoc/>
public override async Task <HttpResponseMessage> ProcessBatchAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
if (request == null)
{
throw Error.ArgumentNull("request");
}
ValidateRequest(request);
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings
{
DisableMessageStreamDisposal = true,
MessageQuotas = MessageQuotas,
BaseUri = GetBaseUri(request)
};
ODataMessageReader reader = await request.Content.GetODataMessageReaderAsync(oDataReaderSettings, cancellationToken);
request.RegisterForDispose(reader);
ODataBatchReader batchReader = reader.CreateODataBatchReader();
List <ODataBatchResponseItem> responses = new List <ODataBatchResponseItem>();
Guid batchId = Guid.NewGuid();
List <IDisposable> resourcesToDispose = new List <IDisposable>();
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(request);
if ((preferHeader != null && preferHeader.Contains(PreferenceContinueOnError)) || (!request.GetConfiguration().HasEnabledContinueOnErrorHeader()))
{
ContinueOnError = true;
}
else
{
ContinueOnError = false;
}
try
{
while (batchReader.Read())
{
ODataBatchResponseItem responseItem = null;
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
responseItem = await ExecuteChangeSetAsync(batchReader, batchId, request, cancellationToken);
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
responseItem = await ExecuteOperationAsync(batchReader, batchId, request, cancellationToken);
}
if (responseItem != null)
{
responses.Add(responseItem);
if (responseItem.IsResponseSuccessful() == false && ContinueOnError == false)
{
break;
}
}
}
}
catch
{
foreach (ODataBatchResponseItem response in responses)
{
if (response != null)
{
response.Dispose();
}
}
throw;
}
return(await CreateResponseMessageAsync(responses, request, cancellationToken));
}
public virtual IQueryable ApplyTo(IQueryable query, ODataQuerySettings querySettings)
{
if (query == null)
{
throw Error.ArgumentNull("query");
}
if (querySettings == null)
{
throw Error.ArgumentNull("querySettings");
}
IQueryable result = query;
// First apply $apply
// Section 3.15 of the spec http://docs.oasis-open.org/odata/odata-data-aggregation-ext/v4.0/cs01/odata-data-aggregation-ext-v4.0-cs01.html#_Toc378326311
ApplyClause apply = null;
if (IsAvailableODataQueryOption(Apply, AllowedQueryOptions.Apply))
{
result = Apply.ApplyTo(result, querySettings);
InternalRequest.Context.ApplyClause = Apply.ApplyClause;
this.Context.ElementClrType = Apply.ResultClrType;
apply = Apply.ApplyClause;
}
// Construct the actual query and apply them in the following order: filter, orderby, skip, top
if (IsAvailableODataQueryOption(Filter, AllowedQueryOptions.Filter))
{
result = Filter.ApplyTo(result, querySettings);
}
if (IsAvailableODataQueryOption(Count, AllowedQueryOptions.Count))
{
if (InternalRequest.Context.TotalCountFunc == null)
{
Func <long> countFunc = Count.GetEntityCountFunc(result);
if (countFunc != null)
{
InternalRequest.Context.TotalCountFunc = countFunc;
}
}
if (InternalRequest.IsCountRequest())
{
return(result);
}
}
OrderByQueryOption orderBy = OrderBy;
// $skip or $top require a stable sort for predictable results.
// Result limits require a stable sort to be able to generate a next page link.
// If either is present in the query and we have permission,
// generate an $orderby that will produce a stable sort.
if (querySettings.EnsureStableOrdering &&
(IsAvailableODataQueryOption(Skip, AllowedQueryOptions.Skip) ||
IsAvailableODataQueryOption(Top, AllowedQueryOptions.Top) ||
querySettings.PageSize.HasValue))
{
// If there is no OrderBy present, we manufacture a default.
// If an OrderBy is already present, we add any missing
// properties necessary to make a stable sort.
// Instead of failing early here if we cannot generate the OrderBy,
// let the IQueryable backend fail (if it has to).
List <string> applySortOptions = GetApplySortOptions(apply);
orderBy = orderBy == null
? GenerateDefaultOrderBy(Context, applySortOptions)
: EnsureStableSortOrderBy(orderBy, Context, applySortOptions);
}
if (IsAvailableODataQueryOption(orderBy, AllowedQueryOptions.OrderBy))
{
result = orderBy.ApplyTo(result, querySettings);
}
AddAutoSelectExpandProperties();
if (SelectExpand != null)
{
var tempResult = ApplySelectExpand(result, querySettings);
if (tempResult != default(IQueryable))
{
result = tempResult;
}
}
if (IsAvailableODataQueryOption(Skip, AllowedQueryOptions.Skip))
{
result = Skip.ApplyTo(result, querySettings);
}
if (IsAvailableODataQueryOption(Top, AllowedQueryOptions.Top))
{
result = Top.ApplyTo(result, querySettings);
}
int pageSize = -1;
if (querySettings.PageSize.HasValue)
{
pageSize = querySettings.PageSize.Value;
}
else if (querySettings.ModelBoundPageSize.HasValue)
{
pageSize = querySettings.ModelBoundPageSize.Value;
}
int preferredPageSize = -1;
if (RequestPreferenceHelpers.RequestPrefersMaxPageSize(InternalRequest.Headers, out preferredPageSize))
{
pageSize = Math.Min(pageSize, preferredPageSize);
}
if (pageSize > 0)
{
bool resultsLimited;
result = LimitResults(result, pageSize, out resultsLimited);
if (resultsLimited && InternalRequest.RequestUri != null && InternalRequest.RequestUri.IsAbsoluteUri &&
InternalRequest.Context.NextLink == null)
{
Uri nextPageLink = InternalRequest.GetNextPageLink(pageSize);
InternalRequest.Context.NextLink = nextPageLink;
}
}
return(result);
}
