private RootProjectionNode GetRootProjectionNode()
{
if (this.rootProjectionNode == null)
{
this.rootProjectionNode = new RootProjectionNode(this.description.LastSegmentInfo.TargetContainer, this.topLevelOrderingInfo, null, this.skipCount, this.topCount, null, this.expandPaths, this.description.TargetResourceType);
}
return(this.rootProjectionNode);
}
private RequestQueryProcessor(IDataService service, RequestDescription description)
{
this.service = service;
this.description = description;
this.orderApplied = false;
this.skipCount = null;
this.topCount = null;
this.queryExpression = description.RequestExpression;
this.filterQueryApplicable = (((description.TargetKind == RequestTargetKind.Resource) || (description.TargetKind == RequestTargetKind.OpenProperty)) || (description.TargetKind == RequestTargetKind.ComplexObject)) || (description.CountOption == RequestQueryCountOption.ValueOnly);
this.setQueryApplicable = ((description.TargetKind == RequestTargetKind.Resource) && !description.IsSingleResult) || (description.CountOption == RequestQueryCountOption.ValueOnly);
this.pagingApplicable = (((description.TargetKind == RequestTargetKind.Resource) && !description.IsSingleResult) && ((description.CountOption != RequestQueryCountOption.ValueOnly) && !description.IsRequestForEnumServiceOperation)) && ((service.OperationContext.Host.HttpVerb == HttpVerbs.GET) || (description.SegmentInfos[0].TargetSource == RequestTargetSource.ServiceOperation));
this.appliedCustomPaging = false;
this.expandPaths = null;
this.expandPathsAsText = null;
this.rootProjectionNode = null;
this.orderingParser = null;
this.topLevelOrderingInfo = null;
}
/// <summary>Initializes a new RequestDescription based on an existing one.</summary>
/// <param name="other">Other description to base new description on.</param>
/// <param name="queryResults">Query results for new request description.</param>
/// <param name="rootProjectionNode">Projection segment describing the projections on the top level of the query.</param>
internal RequestDescription(
RequestDescription other,
IEnumerable queryResults,
RootProjectionNode rootProjectionNode)
{
Debug.Assert(
queryResults == null || other.SegmentInfos != null,
"queryResults == null || other.SegmentInfos != null -- otherwise there isn't a segment in which to replace the query.");
Debug.Assert(
rootProjectionNode == null || queryResults != null,
"rootProjectionNode == null || queryResults != null -- otherwise there isn't a query to execute and expand");
this.containerName = other.containerName;
this.mimeType = other.mimeType;
this.usesContainerName = other.usesContainerName;
this.resultUri = other.resultUri;
this.segmentInfos = other.SegmentInfos;
this.rootProjectionNode = rootProjectionNode;
this.countOption = other.countOption;
this.SkipTokenExpressionCount = other.SkipTokenExpressionCount;
this.SkipTokenProperties = other.SkipTokenProperties;
this.countValue = other.countValue;
this.requireMinimumVersion = other.requireMinimumVersion;
this.responseVersion = other.responseVersion;
this.maxFeatureVersion = other.maxFeatureVersion;
if (queryResults == null)
{
this.segmentInfos = other.SegmentInfos;
}
else
{
int lastSegmentIndex = other.SegmentInfos.Length - 1;
SegmentInfo lastSegmentInfo = other.SegmentInfos[lastSegmentIndex];
lastSegmentInfo.RequestEnumerable = queryResults;
}
}
private void CheckExpandPaths()
{
if (this.expandPathsAsText.Count > 0)
{
if (this.queryExpression == null)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_QueryExpandOptionNotApplicable);
}
if (this.description.TargetResourceType.ResourceTypeKind == ResourceTypeKind.Collection)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_QueryExpandOptionNotApplicable);
}
}
this.expandPaths = new List <ExpandSegmentCollection>(this.expandPathsAsText.Count);
for (int i = this.expandPathsAsText.Count - 1; i >= 0; i--)
{
ExpandSegmentCollection item = this.CheckSingleExpandPath(this.expandPathsAsText[i]);
if (item == null)
{
this.expandPathsAsText.RemoveAt(i);
}
else
{
this.expandPaths.Add(item);
ExpandedProjectionNode rootProjectionNode = this.GetRootProjectionNode();
for (int j = 0; j < item.Count; j++)
{
ExpandSegment segment = item[j];
ExpandedProjectionNode node2 = rootProjectionNode.AddExpandedNode(segment);
this.GetRootProjectionNode().ExpansionOnDerivedTypesSpecified |= rootProjectionNode.HasExpandedPropertyOnDerivedType;
rootProjectionNode = node2;
}
this.GetRootProjectionNode().ExpansionsSpecified = true;
}
}
}
private void ApplyProjectionsToExpandTree(List <List <string> > selectPathsAsText)
{
for (int i = selectPathsAsText.Count - 1; i >= 0; i--)
{
List <string> list = selectPathsAsText[i];
ExpandedProjectionNode rootProjectionNode = this.GetRootProjectionNode();
ResourceType type = null;
for (int j = 0; j < list.Count; j++)
{
bool flag2;
string containerQualifiedName = list[j];
bool lastPathSegment = j == (list.Count - 1);
rootProjectionNode.ProjectionFound = true;
if (containerQualifiedName == "*")
{
rootProjectionNode.ProjectAllImmediateProperties = true;
break;
}
if (this.service.Provider.GetNameFromContainerQualifiedName(containerQualifiedName, out flag2) == "*")
{
rootProjectionNode.ProjectAllImmediateOperations = true;
break;
}
ResourceType previousSegmentResourceType = type ?? rootProjectionNode.ResourceType;
ResourceProperty property = previousSegmentResourceType.TryResolvePropertyName(containerQualifiedName);
if (property == null)
{
type = WebUtil.ResolveTypeIdentifier(this.service.Provider, containerQualifiedName, previousSegmentResourceType, type != null);
if (type != null)
{
this.description.VerifyProtocolVersion(RequestDescription.Version3Dot0, this.service);
continue;
}
Func <OperationWrapper, bool> predicate = null;
string serviceActionName = this.service.Provider.GetNameFromContainerQualifiedName(containerQualifiedName, out flag2);
OperationWrapper operation = null;
if (!previousSegmentResourceType.IsOpenType || flag2)
{
if (predicate == null)
{
predicate = o => o.Name == serviceActionName;
}
operation = this.service.ActionProvider.GetServiceActionsByBindingParameterType(this.service.OperationContext, previousSegmentResourceType).SingleOrDefault <OperationWrapper>(predicate);
}
if (operation != null)
{
rootProjectionNode.AddOperation(operation);
if (!lastPathSegment)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_ServiceActionMustBeLastSegmentInSelect(containerQualifiedName));
}
continue;
}
if (!previousSegmentResourceType.IsOpenType)
{
throw DataServiceException.CreateSyntaxError(System.Data.Services.Strings.RequestUriProcessor_PropertyNotFound(previousSegmentResourceType.FullName, containerQualifiedName));
}
if (!lastPathSegment)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.OpenNavigationPropertiesNotSupportedOnOpenTypes(containerQualifiedName));
}
}
rootProjectionNode = ApplyProjectionForProperty(rootProjectionNode, containerQualifiedName, property, previousSegmentResourceType, lastPathSegment);
type = null;
}
if (type != null)
{
throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_QueryParametersPathCannotEndInTypeIdentifier("$select", type.FullName));
}
}
}