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;
}
private void ObtainOrderingExpressions()
{
StringBuilder builder = new StringBuilder(this.service.OperationContext.Host.GetQueryStringItem("$orderby"));
if (builder.Length > 0)
{
this.CheckSetQueryApplicable();
}
ResourceType targetResourceType = this.description.TargetResourceType;
this.topLevelOrderingInfo = new OrderingInfo(this.IsStandardPaged);
if ((this.IsStandardPaged || this.topCount.HasValue) || this.skipCount.HasValue)
{
string str = (builder.Length > 0) ? "," : string.Empty;
foreach (ResourceProperty property in this.description.TargetResourceSet.GetKeyPropertiesForOrderBy())
{
builder.Append(str).Append(property.Name).Append(' ').Append("asc");
str = ",";
}
}
string str2 = builder.ToString();
if (!string.IsNullOrEmpty(str2))
{
ParameterExpression parameterForIt = Expression.Parameter(targetResourceType.InstanceType, "element");
this.orderingParser = new RequestQueryParser.ExpressionParser(this.service, this.description, parameterForIt, str2);
foreach (OrderingExpression expression2 in this.orderingParser.ParseOrdering())
{
this.topLevelOrderingInfo.Add(new OrderingExpression(Expression.Lambda(expression2.Expression, new ParameterExpression[] { parameterForIt }), expression2.IsAscending));
}
if (this.IsStandardPaged)
{
this.description.SkipTokenExpressionCount = this.topLevelOrderingInfo.OrderingExpressions.Count;
this.description.SkipTokenProperties = NeedSkipTokenVisitor.CollectSkipTokenProperties(this.topLevelOrderingInfo, targetResourceType);
}
}
}
private void ApplyCustomPaging(string skipToken)
{
if (!string.IsNullOrEmpty(skipToken))
{
KeyInstance instance;
WebUtil.CheckSyntaxValid(KeyInstance.TryParseNullableTokens(skipToken, out instance));
ParameterExpression parameterForIt = Expression.Parameter(this.description.LastSegmentInfo.TargetResourceType.InstanceType, "it");
RequestQueryParser.ExpressionParser parser = new RequestQueryParser.ExpressionParser(this.service, this.description, parameterForIt, string.Empty);
object[] skipTokenValues = new object[instance.PositionalValues.Count];
int num = 0;
foreach (object obj2 in instance.PositionalValues)
{
skipTokenValues[num++] = parser.ParseSkipTokenLiteral((string) obj2);
}
this.CheckAndApplyCustomPaging(skipTokenValues);
this.description.VerifyProtocolVersion(RequestDescription.Version2Dot0, this.service);
this.description.VerifyRequestVersion(RequestDescription.Version2Dot0, this.service);
}
else
{
this.CheckAndApplyCustomPaging(null);
}
}
