Пример #1
0
        internal static object ProjectionInitializeEntity(ODataEntityMaterializer materializer, MaterializerEntry entry, Type expectedType, Type resultType, string[] properties, Func <object, object, Type, object>[] propertyValues)
        {
            if (entry.Entry == null)
            {
                throw new NullReferenceException(System.Data.Services.Client.Strings.AtomMaterializer_EntryToInitializeIsNull(resultType.FullName));
            }
            if (!entry.EntityHasBeenResolved)
            {
                ProjectionEnsureEntryAvailableOfType(materializer, entry, resultType);
            }
            else if (!resultType.IsAssignableFrom(entry.ActualType.ElementType))
            {
                throw new InvalidOperationException(System.Data.Services.Client.Strings.AtomMaterializer_ProjectEntityTypeMismatch(resultType.FullName, entry.ActualType.ElementType.FullName, entry.Entry.Id));
            }
            object resolvedObject = entry.ResolvedObject;

            for (int i = 0; i < properties.Length; i++)
            {
                StreamDescriptor         descriptor;
                string                   propertyName = properties[i];
                ClientPropertyAnnotation annotation   = entry.ActualType.GetProperty(propertyName, materializer.ResponseInfo.IgnoreMissingProperties);
                object                   target       = propertyValues[i](materializer, entry.Entry, expectedType);
                ODataProperty            property     = (from p in entry.Entry.Properties
                                                         where p.Name == propertyName
                                                         select p).FirstOrDefault <ODataProperty>();
                if ((((((property == null) && (entry.NavigationLinks != null)) ? (from l in entry.NavigationLinks
                                                                                  where l.Name == propertyName
                                                                                  select l).FirstOrDefault <ODataNavigationLink>() : null) != null) || (property != null)) || entry.EntityDescriptor.TryGetNamedStreamInfo(propertyName, out descriptor))
                {
                    if (entry.ShouldUpdateFromPayload && (annotation.EdmProperty.Type.TypeKind() == EdmTypeKind.Entity))
                    {
                        materializer.Log.SetLink(entry, annotation.PropertyName, target);
                    }
                    if (entry.ShouldUpdateFromPayload)
                    {
                        if (!annotation.IsEntityCollection)
                        {
                            if (!annotation.IsPrimitiveOrComplexCollection)
                            {
                                annotation.SetValue(resolvedObject, target, annotation.PropertyName, false);
                            }
                        }
                        else
                        {
                            IEnumerable list = (IEnumerable)target;
                            DataServiceQueryContinuation continuation = materializer.nextLinkTable[list];
                            Uri            nextLink = (continuation == null) ? null : continuation.NextLinkUri;
                            ProjectionPlan plan     = (continuation == null) ? null : continuation.Plan;
                            materializer.MergeLists(entry, annotation, list, nextLink, plan);
                        }
                    }
                    else if (annotation.IsEntityCollection)
                    {
                        materializer.FoundNextLinkForUnmodifiedCollection(annotation.GetValue(entry.ResolvedObject) as IEnumerable);
                    }
                }
            }
            return(resolvedObject);
        }