C# ODataEntry.SetSerializationInfo方法代码示例

 public void ShouldBeAbleToClearTheEntrySerializationInfo()
 {
     ODataEntry entry = new ODataEntry();
     ODataFeedAndEntrySerializationInfo serializationInfo = new ODataFeedAndEntrySerializationInfo { NavigationSourceName = "Set", NavigationSourceEntityTypeName = "ns.base", ExpectedTypeName = "ns.expected" };
     entry.SerializationInfo = serializationInfo;
     entry.SetSerializationInfo(null);
     entry.SerializationInfo.Should().BeNull();
 }

        private string WriteAndVerifyRequestMessage(ODataMessageWriterSettings settings, string mimeType, bool hasModel)
        {
            // create an order entry to POST
            var order = new ODataEntry()
            {
                TypeName = NameSpace + "Order"
            };

            var orderP1 = new ODataProperty { Name = "OrderId", Value = -10 };
            var orderp2 = new ODataProperty { Name = "CustomerId", Value = 8212 };
            var orderp3 = new ODataProperty { Name = "Concurrency", Value = null };
            order.Properties = new[] { orderP1, orderp2, orderp3 };
            if (!hasModel)
            {
                order.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo() { NavigationSourceName = "Order", NavigationSourceEntityTypeName = NameSpace + "Order" });
                orderP1.SetSerializationInfo(new ODataPropertySerializationInfo() { PropertyKind = ODataPropertyKind.Key });
            }

            Dictionary<string, object> expectedOrderObject = WritePayloadHelper.ComputeExpectedFullMetadataEntryObject(WritePayloadHelper.OrderType, "Order(-10)", order, hasModel);

            // write the request message and read using ODL reader
            var requestMessage = new StreamRequestMessage(new MemoryStream(), new Uri(this.ServiceUri + "Order"), "POST");
            requestMessage.SetHeader("Content-Type", mimeType);
            string result = string.Empty;
            using (var messageWriter = this.CreateODataMessageWriter(requestMessage, settings, hasModel))
            {
                var odataWriter = this.CreateODataEntryWriter(messageWriter, WritePayloadHelper.OrderSet, WritePayloadHelper.OrderType, hasModel);
                odataWriter.WriteStart(order);
                odataWriter.WriteEnd();

                Stream stream = requestMessage.GetStream();
                result = WritePayloadHelper.ReadStreamContent(stream);
                if (!mimeType.Contains(MimeTypes.ODataParameterNoMetadata))
                {
                    stream.Seek(0, SeekOrigin.Begin);
                    var readerSetting = new ODataMessageReaderSettings() { BaseUri = this.ServiceUri };
                    ODataMessageReader messageReader = new ODataMessageReader(requestMessage, readerSetting, WritePayloadHelper.Model);
                    ODataReader reader = messageReader.CreateODataEntryReader(WritePayloadHelper.OrderSet, WritePayloadHelper.OrderType);
                    bool verifyEntryCalled = false;
                    while (reader.Read())
                    {
                        if (reader.State == ODataReaderState.EntryEnd)
                        {
                            ODataEntry entry = reader.Item as ODataEntry;
                            Assert.AreEqual(3, entry.Properties.Count(), "entry.Properties.Count");
                            verifyEntryCalled = true;
                        }
                    }

                    Assert.AreEqual(ODataReaderState.Completed, reader.State);
                    Assert.IsTrue(verifyEntryCalled, "verifyEntryCalled");
                }
            }

            // For Json light, verify the resulting metadata is as expected
            if (mimeType != MimeTypes.ApplicationAtomXml)
            {
                JavaScriptSerializer jScriptSerializer = new JavaScriptSerializer();
                Dictionary<string, object> resultObject = jScriptSerializer.DeserializeObject(result) as Dictionary<string, object>;

                // AutoComputePayloadMetadataInJson has no effect on request message metadata
                Assert.AreEqual(this.ServiceUri + "$metadata#Order/$entity", resultObject.Single(e => e.Key == JsonLightConstants.ODataContextAnnotationName).Value);
                resultObject.Remove(JsonLightConstants.ODataContextAnnotationName);

                foreach (var pair in resultObject)
                {
                    Assert.IsFalse(pair.Key.Contains("odata.") || pair.Key.StartsWith("#"));
                }
            }

            return result;
        }

        public override void Process(IODataRequestMessage requestMessage, IODataResponseMessage responseMessage)
        {
            var token = HttpUtility.ParseQueryString(RequestUri.Query).Get("$token");
            if (string.IsNullOrEmpty(token))
            {
                deltaToken = "common";
            }
            else
            {
                deltaToken = token;
            }

            if (deltaToken == "common")
            {
                originalUri = new Uri(ServiceConstants.ServiceBaseUri, "Customers?$expand=Orders");
                using (var messageWriter = this.CreateMessageWriter(responseMessage))
                {
                    var entitySet = this.DataSource.Model.FindDeclaredEntitySet("Customers");
                    var entityType = entitySet.EntityType();
                    ODataDeltaWriter deltaWriter = messageWriter.CreateODataDeltaWriter(entitySet, entityType);

                    var deltaFeed = new ODataDeltaFeed();
                    var deltaEntry = new ODataEntry
                    {
                        Id = new Uri(ServiceConstants.ServiceBaseUri, entitySet.Name + "(1)"), 
                        Properties = new[] {new ODataProperty {Name = "FirstName", Value = "GGGG"}}
                    };
                    var deletedLink = new ODataDeltaDeletedLink(
                        new Uri(ServiceConstants.ServiceBaseUri, entitySet.Name + "(1)"), new Uri(ServiceConstants.ServiceBaseUri, "Orders(8)"), "Orders");
                    var addedLink = new ODataDeltaLink(
                        new Uri(ServiceConstants.ServiceBaseUri, entitySet.Name + "(1)"), new Uri(ServiceConstants.ServiceBaseUri, "Orders(7)"), "Orders");
                    var navigationEntry = new ODataEntry
                    {
                        Id = new Uri(ServiceConstants.ServiceBaseUri, "Orders(100)"),
                        TypeName = "Microsoft.Test.OData.Services.ODataWCFService.Order",
                        Properties = new[]
                        {
                            new ODataProperty {Name = "OrderID", Value = 100}, 
                            new ODataProperty {Name = "OrderDate", Value = new DateTimeOffset(DateTime.Now)}
                        }
                    };
                    navigationEntry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo
                    {
                        NavigationSourceEntityTypeName = "Microsoft.Test.OData.Services.ODataWCFService.Order",
                        NavigationSourceKind = EdmNavigationSourceKind.EntitySet,
                        NavigationSourceName = "Orders"
                    });

                    var deletedEntry = new ODataDeltaDeletedEntry(
                        new Uri(ServiceConstants.ServiceBaseUri, entitySet.Name + "(2)").AbsoluteUri, DeltaDeletedEntryReason.Deleted);

                    deltaFeed.DeltaLink = new Uri(ServiceConstants.ServiceBaseUri, "$delta?$token=common");

                    deltaWriter.WriteStart(deltaFeed);
                    deltaWriter.WriteStart(deltaEntry);
                    deltaWriter.WriteEnd();
                    deltaWriter.WriteDeltaDeletedLink(deletedLink);
                    deltaWriter.WriteDeltaLink(addedLink);
                    deltaWriter.WriteStart(navigationEntry);
                    deltaWriter.WriteEnd();
                    deltaWriter.WriteDeltaDeletedEntry(deletedEntry);
                    deltaWriter.WriteEnd();
                }
            }
            else if (deltaToken == "containment")
            {
                originalUri = new Uri(ServiceConstants.ServiceBaseUri, "Accounts(103)/MyPaymentInstruments?$expand=BillingStatements");
                using (var messageWriter = this.CreateMessageWriter(responseMessage))
                {
                    var accountsSet = this.DataSource.Model.FindDeclaredEntitySet("Accounts");
                    var accountType = accountsSet.EntityType();
                    var myPisNav = accountType.FindProperty("MyPaymentInstruments") as IEdmNavigationProperty;
                    var piSet = accountsSet.FindNavigationTarget(myPisNav);
                    var piType = piSet.EntityType();
                    ODataDeltaWriter deltaWriter = messageWriter.CreateODataDeltaWriter(piSet as IEdmContainedEntitySet, piType);

                    var deltaFeed = new ODataDeltaFeed();
                    var deltaEntry = new ODataEntry
                    {
                        Id = new Uri(ServiceConstants.ServiceBaseUri, "Accounts(103)/MyPaymentInstruments(103901)"), 
                        Properties = new[] { new ODataProperty { Name = "FriendlyName", Value = "GGGG" } }
                    };
                    
                    var deletedEntry = new ODataDeltaDeletedEntry(
                        new Uri(ServiceConstants.ServiceBaseUri, "Accounts(103)/MyPaymentInstruments(103901)/BillingStatements(103901001)").AbsoluteUri, 
                        DeltaDeletedEntryReason.Deleted);
                    deletedEntry.SetSerializationInfo(new ODataDeltaSerializationInfo()
                    {
                        NavigationSourceName = "Accounts(103)/MyPaymentInstruments(103901)/BillingStatements"
                    });

                    var deletedLink = new ODataDeltaDeletedLink(
                        new Uri(ServiceConstants.ServiceBaseUri, "Accounts(103)/MyPaymentInstruments(103901)"),
                        new Uri(ServiceConstants.ServiceBaseUri, "Accounts(103)/MyPaymentInstruments(103901)/BillingStatements(103901001)"), 
                        "BillingStatements");

                    var navigationEntry = new ODataEntry
                    {
                        Id = new Uri(ServiceConstants.ServiceBaseUri, "Accounts(103)/MyPaymentInstruments(103901)/BillingStatements(103901005)"),
                        TypeName = "Microsoft.Test.OData.Services.ODataWCFService.Statement",
//.........这里部分代码省略.........

        public static ODataEntry CreateCarEntryNoMetadata(bool hasModel)
        {
            var carEntry = new ODataEntry()
            {
                TypeName = NameSpace + "Car",
            };

            // properties and named streams
            var carEntryP1 = new ODataProperty { Name = "VIN", Value = 11 };
            var carEntryP2 = new ODataProperty
            {
                Name = "Description",
                Value = "cenbviijieljtrtdslbuiqubcvhxhzenidqdnaopplvlqc"
            };

            carEntry.Properties = new[] { carEntryP1, carEntryP2 };

            carEntry.InstanceAnnotations.Add(new ODataInstanceAnnotation("carEntry.AnnotationName",
                                                                         new ODataPrimitiveValue(
                                                                             "carEntryAnnotationValue")));

            if (!hasModel)
            {
                carEntry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo() { NavigationSourceName = "Car", NavigationSourceEntityTypeName = NameSpace + "Car" });
                carEntryP1.SetSerializationInfo(new ODataPropertySerializationInfo()
                {
                    PropertyKind = ODataPropertyKind.Key
                });
            }

            return carEntry;

        }

        public void ShouldBeAbleToWriteFeedAndEntryResponseInJsonLightWithoutModel()
        {
            const string expectedPayload =
                "{" +
                    "\"@odata.context\":\"http://www.example.com/$metadata#Customers/NS.VIPCustomer\"," +
                    "\"value\":[" +
                        "{" +
                            "\"Name\":\"Bob\"," +
                            "\"[email protected]\":\"MostRecentOrder\"," +
                            "\"MostRecentOrder\":{\"OrderId\":101}" +
                        "}" +
                    "]" +
                "}";

            var writerSettings = new ODataMessageWriterSettings { DisableMessageStreamDisposal = true };
            writerSettings.SetContentType(ODataFormat.Json);
            writerSettings.ODataUri = new ODataUri() { ServiceRoot = new Uri("http://www.example.com") };

            MemoryStream stream = new MemoryStream();
            IODataResponseMessage responseMessage = new InMemoryMessage { StatusCode = 200, Stream = stream };

            // Write payload
            using (var messageWriter = new ODataMessageWriter(responseMessage, writerSettings))
            {
                var odataWriter = messageWriter.CreateODataFeedWriter();

                // Create customers feed with serializtion info to write odata.metadata.
                var customersFeed = new ODataFeed();
                customersFeed.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo { NavigationSourceName = "Customers", NavigationSourceEntityTypeName = "NS.Customer", ExpectedTypeName = "NS.VIPCustomer" });

                // Write customers feed.
                odataWriter.WriteStart(customersFeed);

                // Write VIP customer
                {
                    // Create VIP customer, don't need to pass in serialization info since the writer knows the context from the feed scope.
                    var vipCustomer = new ODataEntry { TypeName = "NS.VIPCustomer" };

                    var customerKey = new ODataProperty { Name = "Name", Value = "Bob" };

                    // Provide serialization info at the property level to compute the edit link.
                    customerKey.SetSerializationInfo(new ODataPropertySerializationInfo { PropertyKind = ODataPropertyKind.Key });
                    vipCustomer.Properties = new[] { customerKey };

                    // Write customer entry.
                    odataWriter.WriteStart(vipCustomer);

                    // Write expanded most recent order
                    {
                        // No API to set serialization info on ODataNavigationLink since what we are adding on ODataFeed and ODataEntry should be sufficient for the 5.5 release.
                        var navigationLink = new ODataNavigationLink { Name = "MostRecentOrder", IsCollection = false, Url = new Uri("MostRecentOrder", UriKind.Relative) };
                        odataWriter.WriteStart(navigationLink);

                        // Write the most recent customer.
                        {
                            var mostRecentOrder = new ODataEntry { TypeName = "NS.Order" };

                            // Add serialization info so we can computer links.
                            mostRecentOrder.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo { NavigationSourceName = "Orders", NavigationSourceEntityTypeName = "NS.Order", ExpectedTypeName = "NS.Order" });

                            var orderKey = new ODataProperty { Name = "OrderId", Value = 101 };

                            // Provide serialization info at the property level to compute the edit link.
                            orderKey.SetSerializationInfo(new ODataPropertySerializationInfo { PropertyKind = ODataPropertyKind.Key });
                            mostRecentOrder.Properties = new[] { orderKey };

                            // Write order entry.
                            odataWriter.WriteStart(mostRecentOrder);
                            odataWriter.WriteEnd();
                        }

                        // End navigationLink.
                        odataWriter.WriteEnd();
                    }

                    // End customer entry.
                    odataWriter.WriteEnd();
                }

                // End customers feed.
                odataWriter.WriteEnd();
            }

            stream.Position = 0;
            string payload = (new StreamReader(stream)).ReadToEnd();
            payload.Should().Be(expectedPayload);
        }

 public void ShouldWritePayloadWhenExpandedFeedAndEntryHasSerializationInfo()
 {
     List<ODataItem> itemsToWrite = new List<ODataItem>();
     var entry1 = new ODataEntry();
     entry1.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo { NavigationSourceName = "MySet", NavigationSourceEntityTypeName = "NS.MyEntityType" });
     itemsToWrite.Add(entry1);
     itemsToWrite.Add(new ODataNavigationLink { Name = "EntitySetReferenceProperty", IsCollection = true });
     var feed = new ODataFeed();
     feed.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo { NavigationSourceName = "MySet", NavigationSourceEntityTypeName = "NS.MyEntityType" });
     itemsToWrite.Add(feed);
     var entry2 = new ODataEntry();
     entry2.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo { NavigationSourceName = "MySet2", NavigationSourceEntityTypeName = "NS.MyEntityType2" });
     itemsToWrite.Add(entry2);
     const string expectedPayload = "{\"@odata.context\":\"http://odata.org/test/$metadata#MySet/$entity\",\"EntitySetReferenceProperty\":[{}]}";
     this.WriteNestedItemsAndValidatePayload(entitySetFullName: null, derivedEntityTypeFullName: null, nestedItemToWrite: itemsToWrite.ToArray(), expectedPayload: expectedPayload, writingResponse: true);
 }

        public static ODataEntry CreateCustomerEntryNoMetadata(bool hasModel)
        {
            var customerEntry = new ODataEntry()
            {
                TypeName = NameSpace + "Customer"
            };

            var customerEntryP1 = new ODataProperty { Name = "CustomerId", Value = -9 };
            var customerEntryP2 = new ODataProperty { Name = "Name", Value = "CustomerName" };
            var customerEntryP3 = new ODataProperty
            {
                Name = "PrimaryContactInfo",
                Value = CreatePrimaryContactODataComplexValue()
            };
            var customerEntryP4 = new ODataProperty
            {
                Name = "BackupContactInfo",
                Value = CreateBackupContactODataCollectionValue()
            };
            var customerEntryP5 = new ODataProperty
            {
                Name = "Auditing",
                Value = CreateAuditInforODataComplexValue()
            };

            customerEntry.Properties = new[]
                {
                    customerEntryP1, customerEntryP2, customerEntryP3, customerEntryP4, customerEntryP5,
                };

            if (!hasModel)
            {
                customerEntry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo() { NavigationSourceName = "Customer", NavigationSourceEntityTypeName = NameSpace + "Customer" });
                customerEntryP1.SetSerializationInfo(new ODataPropertySerializationInfo()
                {
                    PropertyKind = ODataPropertyKind.Key
                });
            }

            return customerEntry;
        }

        public static void FeedWriteReadNormal()
        {
            Console.WriteLine("FeedWriteReadNormal");

            ODataFeed Feed = new ODataFeed();

            Feed.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo()
            {
                NavigationSourceName = "Mails",
                NavigationSourceEntityTypeName = "NS.Mail",
                NavigationSourceKind = EdmNavigationSourceKind.ContainedEntitySet
            });

            ODataEntry Entry = new ODataEntry()
            {
                Properties = new[]
                {
                    new ODataProperty() {Name = "Id", Value = 2},
                },
                EditLink = new Uri("http://example/Web/Users(3)"),
            };

            Entry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo()
            {
                NavigationSourceName = "MyLogin",
                NavigationSourceEntityTypeName = "NS.Person",
                NavigationSourceKind = EdmNavigationSourceKind.ContainedEntitySet
            });

            // Parse the full request Uri
            ODataPath path = new ODataUriParser(
                CraftModel.Model,
                new Uri("http://example.org/svc/"),
                new Uri("http://example.org/svc/MyLogin/Mails")).ParsePath();

            // Alternatively, construct the normal path for the contained entity manually.
            //ODataPath path = new ODataPath(
            //    new ODataPathSegment[]
            //    {
            //        new SingletonSegment(CraftModel.MyLogin), new NavigationPropertySegment(CraftModel.MailBox, CraftModel.MyLogin)
            //    });

            var stream = new MemoryStream();

            var wsetting = new ODataMessageWriterSettings()
            {
                DisableMessageStreamDisposal = true,

                ODataUri = new ODataUri()
                {
                    ServiceRoot = new Uri("http://example.org/svc/"),
                    Path = path
                }
            };
            IODataResponseMessage msg = new Message()
            {
                Stream = stream,
            };

            var omw = new ODataMessageWriter(msg, wsetting);
            var writer = omw.CreateODataFeedWriter();
            writer.WriteStart(Feed);
            writer.WriteStart(Entry);
            writer.WriteEnd();
            writer.WriteEnd();

            stream.Seek(0, SeekOrigin.Begin);
            var payload = new StreamReader(stream).ReadToEnd();

            // {"@odata.context":"http://example.org/svc/$metadata#Web/Items","value":[{"@odata.editLink":"http://example/Web/Users(3)","Id":2}]}
            Console.WriteLine(payload);

            //Read
            ODataEntry entry = null;
            stream.Seek(0, SeekOrigin.Begin);
            var rsetting = new ODataMessageReaderSettings();
            var omr = new ODataMessageReader(msg, rsetting, CraftModel.Model);
            var reader = omr.CreateODataFeedReader();
            while (reader.Read())
            {
                if (reader.State == ODataReaderState.EntryEnd)
                {
                    entry = (ODataEntry)reader.Item;
                    break;
                }
            }

            //Id=2
            foreach (var prop in entry.Properties)
            {
                Console.WriteLine("{0}={1}", prop.Name, prop.Value);
            }
        }

 public void ShouldWritePayloadWhenFeedAndEntryHasSerializationInfo()
 {
     var feed = new ODataFeed();
     feed.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo { NavigationSourceName = "MySet", NavigationSourceEntityTypeName = "NS.MyEntityType" });
     var entry = new ODataEntry();
     entry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo { NavigationSourceName = "MySet2", NavigationSourceEntityTypeName = "NS.MyEntityType2" });
     List<ODataItem> itemsToWrite = new List<ODataItem>() { feed, entry };
     const string expectedPayload = "{\"@odata.context\":\"http://odata.org/test/$metadata#MySet\",\"value\":[{}]}";
     this.WriteNestedItemsAndValidatePayload(entitySetFullName: null, derivedEntityTypeFullName: null, nestedItemToWrite: itemsToWrite.ToArray(), expectedPayload: expectedPayload, writingResponse: true);
 }

        /// <summary>Write the entry element.</summary>
        /// <param name="expanded">Expanded result provider for the specified <paramref name="element"/>.</param>
        /// <param name="element">Element representing the entry element.</param>
        /// <param name="resourceInstanceInFeed">true if the resource instance being serialized is inside a feed; false otherwise.</param>
        /// <param name="expectedType">Expected type of the entry element.</param>
        private void WriteEntry(IExpandedResult expanded, object element, bool resourceInstanceInFeed, ResourceType expectedType)
        {
            Debug.Assert(element != null, "element != null");
            Debug.Assert(expectedType != null && expectedType.ResourceTypeKind == ResourceTypeKind.EntityType, "expectedType != null && expectedType.ResourceTypeKind == ResourceTypeKind.EntityType");
            this.IncrementSegmentResultCount();

            ODataEntry entry = new ODataEntry();
            if (!resourceInstanceInFeed)
            {
                entry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo { NavigationSourceName = this.CurrentContainer.Name, NavigationSourceEntityTypeName = this.CurrentContainer.ResourceType.FullName, ExpectedTypeName = expectedType.FullName });
            }

            string title = expectedType.Name;
#pragma warning disable 618
            if (this.contentFormat == ODataFormat.Atom)
#pragma warning restore 618
            {
                AtomEntryMetadata entryAtom = new AtomEntryMetadata();
                entryAtom.EditLink = new AtomLinkMetadata { Title = title };
                entry.SetAnnotation(entryAtom);
            }

            ResourceType actualResourceType = WebUtil.GetNonPrimitiveResourceType(this.Provider, element);
            if (actualResourceType.ResourceTypeKind != ResourceTypeKind.EntityType)
            {
                // making sure that the actual resource type is an entity type
                throw new DataServiceException(500, Microsoft.OData.Service.Strings.BadProvider_InconsistentEntityOrComplexTypeUsage(actualResourceType.FullName));
            }

            EntityToSerialize entityToSerialize = this.WrapEntity(element, actualResourceType);

            // populate the media resource, if the entity is a MLE.
            entry.MediaResource = this.GetMediaResource(entityToSerialize, title);

            // Write the type name
            this.PayloadMetadataPropertyManager.SetTypeName(entry, this.CurrentContainer.ResourceType.FullName, actualResourceType.FullName);

            // Write Id element
            this.PayloadMetadataPropertyManager.SetId(entry, () => entityToSerialize.SerializedKey.Identity);

            // Write "edit" link
            this.PayloadMetadataPropertyManager.SetEditLink(entry, () => entityToSerialize.SerializedKey.RelativeEditLink);

            // Write the etag property, if the type has etag properties
            this.PayloadMetadataPropertyManager.SetETag(entry, () => this.GetETagValue(element, actualResourceType));
            
            IEnumerable<ProjectionNode> projectionNodes = this.GetProjections();
            if (projectionNodes != null)
            {
                // Filter the projection nodes for the actual type of the entity
                // The projection node might refer to the property in a derived type. If the TargetResourceType of
                // the projection node is not a super type, then we do not want to serialize this property.
                projectionNodes = projectionNodes.Where(projectionNode => projectionNode.TargetResourceType.IsAssignableFrom(actualResourceType));

                // Because we are going to enumerate through these multiple times, create a list.
                projectionNodes = projectionNodes.ToList();

                // And add the annotation to tell ODataLib which properties to write into content (the projections)
                entry.SetAnnotation(new ProjectedPropertiesAnnotation(projectionNodes.Select(p => p.PropertyName)));
            }

            // Populate the advertised actions
            IEnumerable<ODataAction> actions;
            if (this.TryGetAdvertisedActions(entityToSerialize, resourceInstanceInFeed, out actions))
            {
                foreach (ODataAction action in actions)
                {
                    entry.AddAction(action);
                }
            }

            // Populate all the normal properties
            entry.Properties = this.GetEntityProperties(entityToSerialize, projectionNodes);

            // And start the entry
            var args = new DataServiceODataWriterEntryArgs(entry, element, this.Service.OperationContext);
            this.dataServicesODataWriter.WriteStart(args);

            // Now write all the navigation properties
            this.WriteNavigationProperties(expanded, entityToSerialize, resourceInstanceInFeed, projectionNodes);

            // And write the end of the entry
            this.dataServicesODataWriter.WriteEnd(args);

#if ASTORIA_FF_CALLBACKS
            this.Service.InternalOnWriteItem(target, element);
#endif
        }

        public void WriteContainedEntityInDeltaFeedWithSelectExpand()
        {
            this.TestInit(this.GetModel());

            ODataDeltaFeed feed = new ODataDeltaFeed();

            ODataEntry entry = new ODataEntry()
            {
                TypeName = "MyNS.Product",
                Properties = new[]
                {
                    new ODataProperty {Name = "Id", Value = new ODataPrimitiveValue(1)}, 
                    new ODataProperty {Name = "Name", Value = new ODataPrimitiveValue("Car")},
                },
            };

            ODataEntry containedEntry = new ODataEntry()
            {
                TypeName = "MyNS.ProductDetail",
                Properties = new[]
                {
                    new ODataProperty {Name = "Id", Value = new ODataPrimitiveValue(1)}, 
                    new ODataProperty {Name = "Detail", Value = new ODataPrimitiveValue("made in china")},
                },
            };

            containedEntry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo()
            {
                NavigationSourceEntityTypeName = "MyNS.ProductDetail",
                NavigationSourceName = "Products(1)/Details",
                NavigationSourceKind = EdmNavigationSourceKind.ContainedEntitySet
            });


            var result = new ODataQueryOptionParser(this.GetModel(), this.GetProductType(), this.GetProducts(), new Dictionary<string, string> { { "$expand", "Details($select=Detail)" }, { "$select", "Name" } }).ParseSelectAndExpand();

            ODataUri odataUri = new ODataUri()
            {
                ServiceRoot = new Uri("http://host/service"),
                SelectAndExpand = result
            };

            var outputContext = CreateJsonLightOutputContext(this.stream, this.GetModel(), odataUri);
            ODataJsonLightDeltaWriter writer = new ODataJsonLightDeltaWriter(outputContext, this.GetProducts(), this.GetProductType());
            writer.WriteStart(feed);
            writer.WriteStart(containedEntry);
            writer.WriteEnd();
            writer.WriteStart(entry);
            writer.WriteEnd();
            writer.WriteEnd();
            writer.Flush();

            string payload = this.TestFinish();
            payload.Should().Be("{\"@odata.context\":\"http://host/service/$metadata#Products(Name,Details,Details(Detail))/$delta\",\"value\":[{\"@odata.context\":\"http://host/service/$metadata#Products(1)/Details/$entity\",\"Id\":1,\"Detail\":\"made in china\"},{\"Id\":1,\"Name\":\"Car\"}]}");
        }

        public void WriteContainedEntityInDeltaFeed()
        {
            this.TestInit(this.GetModel());

            ODataDeltaFeed feed = new ODataDeltaFeed();
            ODataEntry containedEntry = new ODataEntry()
            {
                TypeName = "MyNS.ProductDetail",
                Properties = new[]
                {
                    new ODataProperty {Name = "Id", Value = new ODataPrimitiveValue(1)}, 
                    new ODataProperty {Name = "Detail", Value = new ODataPrimitiveValue("made in china")},
                },
            };

            containedEntry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo()
            {
                NavigationSourceEntityTypeName = "MyNS.ProductDetail",
                NavigationSourceName = "Products(1)/Details",
                NavigationSourceKind = EdmNavigationSourceKind.ContainedEntitySet
            });

            ODataEntry containedInContainedEntity = new ODataEntry()
            {
                TypeName = "MyNS.ProductDetailItem",
                Properties = new[]
                {
                    new ODataProperty {Name = "ItemId", Value = new ODataPrimitiveValue(1)}, 
                    new ODataProperty {Name = "Description", Value = new ODataPrimitiveValue("made by HCC")},
                },
            };

            containedInContainedEntity.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo()
            {
                NavigationSourceEntityTypeName = "MyNS.ProductDetailItem",
                NavigationSourceName = "Products(1)/Details(1)/Items",
                NavigationSourceKind = EdmNavigationSourceKind.ContainedEntitySet
            });

            ODataJsonLightDeltaWriter writer = new ODataJsonLightDeltaWriter(outputContext, this.GetProducts(), this.GetProductType());
            writer.WriteStart(feed);
            writer.WriteStart(containedEntry);
            writer.WriteEnd();
            writer.WriteStart(containedInContainedEntity);
            writer.WriteEnd();
            writer.WriteEnd();
            writer.Flush();

            string payload = this.TestFinish();
            payload.Should().Be("{\"@odata.context\":\"http://host/service/$metadata#Products/$delta\",\"value\":[{\"@odata.context\":\"http://host/service/$metadata#Products(1)/Details/$entity\",\"Id\":1,\"Detail\":\"made in china\"},{\"@odata.context\":\"http://host/service/$metadata#Products(1)/Details(1)/Items/$entity\",\"ItemId\":1,\"Description\":\"made by HCC\"}]}"); 
        }

        private string SerializeEntryInFullMetadataJson(
            bool? useKeyAsSegment, 
            IEdmModel edmModel, 
            IEdmEntityType entityType = null, 
            IEdmEntitySet entitySet = null)
        {
            var settings = new ODataMessageWriterSettings
            {
                AutoComputePayloadMetadataInJson = true,
                UseKeyAsSegment = useKeyAsSegment,
            };

            settings.SetServiceDocumentUri(new Uri("http://example.com/"));

            var outputStream = new MemoryStream();
            var responseMessage = new InMemoryMessage {Stream = outputStream};
            responseMessage.SetHeader("Content-Type", "application/json;odata.metadata=full");
            string output;

            using(var messageWriter = new ODataMessageWriter((IODataResponseMessage)responseMessage, settings, edmModel))
            {
                var entryWriter = messageWriter.CreateODataEntryWriter(entitySet, entityType);
                ODataProperty keyProperty = new ODataProperty() {Name = "Key", Value = "KeyValue"};

                var entry = new ODataEntry {Properties = new[] {keyProperty}, TypeName = "Namespace.Person"};

                if (edmModel == null)
                {
                    keyProperty.SetSerializationInfo(new ODataPropertySerializationInfo
                    {
                        PropertyKind = ODataPropertyKind.Key
                    });

                    entry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo
                    {
                        NavigationSourceEntityTypeName = "Namespace.Person",
                        NavigationSourceName = "People",
                        ExpectedTypeName = "Namespace.Person"
                    });
                }

                entryWriter.WriteStart(entry);
                entryWriter.WriteEnd();
                entryWriter.Flush();

                outputStream.Seek(0, SeekOrigin.Begin);
                output = new StreamReader(outputStream).ReadToEnd();
            }

            return output;
        }

        private string WriteAndVerifyRequestMessage(StreamRequestMessage requestMessageWithoutModel,
                                                    ODataWriter odataWriter, bool hasModel, string mimeType)
        {
            var order = new ODataEntry()
                {
                    Id = new Uri(this.ServiceUri + "Order(-10)"),
                    TypeName = NameSpace + "Order"
                };

            var orderP1 = new ODataProperty { Name = "OrderId", Value = -10 };
            var orderp2 = new ODataProperty { Name = "CustomerId", Value = 8212 };
            var orderp3 = new ODataProperty { Name = "Concurrency", Value = null };
            order.Properties = new[] { orderP1, orderp2, orderp3 };
            if (!hasModel)
            {
                order.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo() { NavigationSourceName = "Order", NavigationSourceEntityTypeName = NameSpace + "Order" });
                orderP1.SetSerializationInfo(new ODataPropertySerializationInfo() { PropertyKind = ODataPropertyKind.Key });
            }

            odataWriter.WriteStart(order);
            odataWriter.WriteEnd();

            Stream stream = requestMessageWithoutModel.GetStream();
            if (!mimeType.Contains(MimeTypes.ODataParameterNoMetadata))
            {
                stream.Seek(0, SeekOrigin.Begin);
                var settings = new ODataMessageReaderSettings() { BaseUri = this.ServiceUri };
                ODataMessageReader messageReader = new ODataMessageReader(requestMessageWithoutModel, settings,
                                                                          WritePayloadHelper.Model);
                ODataReader reader = messageReader.CreateODataEntryReader(WritePayloadHelper.OrderSet, WritePayloadHelper.OrderType);
                bool verifyEntryCalled = false;
                while (reader.Read())
                {
                    if (reader.State == ODataReaderState.EntryEnd)
                    {
                        ODataEntry entry = reader.Item as ODataEntry;
                        Assert.IsTrue(entry.Id.ToString().Contains("Order(-10)"), "entry.Id");
                        Assert.AreEqual(3, entry.Properties.Count(), "entry.Properties.Count");
                        verifyEntryCalled = true;
                    }
                }

                Assert.AreEqual(ODataReaderState.Completed, reader.State);
                Assert.IsTrue(verifyEntryCalled, "verifyEntryCalled");
            }

            return WritePayloadHelper.ReadStreamContent(stream);
        }