/// <summary>
/// Initializes a new instance of the <see cref="Microsoft.OData.Service.ExpandAndSelectParseResult"/> class.
/// </summary>
/// <param name="requestDescription">The request description.</param>
/// <param name="dataService">The data service.</param>
internal ExpandAndSelectParseResult(RequestDescription requestDescription, IDataService dataService)
{
Debug.Assert(dataService != null, "dataService != null");
Debug.Assert(dataService.OperationContext != null, "dataService.OperationContext != null");
Debug.Assert(dataService.OperationContext.RequestMessage != null, "dataService.OperationContext.RequestMessage != null");
string expand = dataService.OperationContext.RequestMessage.GetQueryStringItem(XmlConstants.HttpQueryStringExpand);
this.RawSelectQueryOptionValue = dataService.OperationContext.RequestMessage.GetQueryStringItem(XmlConstants.HttpQueryStringSelect);
ResourceType targetResourceType = requestDescription.TargetResourceType;
ResourceSetWrapper targetResourceSet = requestDescription.TargetResourceSet;
if (!string.IsNullOrEmpty(expand))
{
if (targetResourceType == null || targetResourceType.ResourceTypeKind != ResourceTypeKind.EntityType || targetResourceSet == null)
{
throw DataServiceException.CreateBadRequestError(Strings.RequestQueryProcessor_QueryExpandOptionNotApplicable);
}
}
if (!string.IsNullOrEmpty(this.RawSelectQueryOptionValue))
{
ValidateSelectIsAllowedForRequest(requestDescription);
// Throw if $select requests have been disabled by the user
Debug.Assert(dataService.Configuration != null, "dataService.Configuration != null");
if (!dataService.Configuration.DataServiceBehavior.AcceptProjectionRequests)
{
throw DataServiceException.CreateBadRequestError(Strings.DataServiceConfiguration_ProjectionsNotAccepted);
}
}
MetadataProviderEdmModel model = dataService.Provider.GetMetadataProviderEdmModel();
var uriParser = RequestUriProcessor.CreateUriParserWithBatchReferenceCallback(dataService, dataService.OperationContext.AbsoluteRequestUri);
try
{
Debug.Assert(model.Mode == MetadataProviderEdmModelMode.Serialization, "Model expected to be in serialization mode by default");
model.Mode = MetadataProviderEdmModelMode.SelectAndExpandParsing;
this.Clause = uriParser.ParseSelectAndExpand();
}
catch (ODataException ex)
{
throw new DataServiceException(400, null, ex.Message, null, ex);
}
finally
{
model.Mode = MetadataProviderEdmModelMode.Serialization;
}
if (this.Clause != null)
{
this.HasExpand = this.Clause.SelectedItems.OfType <ExpandedNavigationSelectItem>().Any();
this.HasSelect = HasSelectedItemAtAnyLevel(this.Clause);
}
}
/// <summary>Initializes a new <see cref="RequestExpressionParser"/>.</summary>
/// <param name="service">Service with data and configuration.</param>
/// <param name="requestDescription">RequestDescription instance containing information about the current request being parsed.</param>
internal RequestExpressionParser(IDataService service, RequestDescription requestDescription)
{
Debug.Assert(service != null, "service != null");
Debug.Assert(requestDescription != null, "requestDescription != null");
this.provider = service.Provider;
this.model = this.provider.GetMetadataProviderEdmModel();
this.odataUriParser = RequestUriProcessor.CreateUriParserWithBatchReferenceCallback(service, service.OperationContext.AbsoluteRequestUri);
}