public void WriteDeltaFeedInline_Sets_DeltaLink()
{
// Arrange
IEnumerable instance = new object[0];
ODataDeltaResourceSet deltafeed = new ODataDeltaResourceSet {
DeltaLink = new Uri("http://deltalink.com/")
};
Mock <ODataDeltaFeedSerializer> serializer = new Mock <ODataDeltaFeedSerializer>(_serializerProvider);
serializer.CallBase = true;
serializer.Setup(s => s.CreateODataDeltaFeed(instance, _customersType, _writeContext)).Returns(deltafeed);
var mockWriter = new Mock <ODataWriter>();
mockWriter.Setup(m => m.WriteStart(deltafeed));
mockWriter
.Setup(m => m.WriteEnd())
.Callback(() =>
{
Assert.Equal("http://deltalink.com/", deltafeed.DeltaLink.AbsoluteUri);
})
.Verifiable();
// Act
serializer.Object.WriteDeltaFeedInline(instance, _customersType, mockWriter.Object, _writeContext);
// Assert
mockWriter.Verify();
}
public void WriteDerivedEntity()
{
this.TestInit(this.GetModel());
ODataDeltaResourceSet feed = new ODataDeltaResourceSet();
ODataResource derivedEntity = new ODataResource()
{
TypeName = "MyNS.PhysicalProduct",
Properties = new[]
{
new ODataProperty {
Name = "Id", Value = new ODataPrimitiveValue(1)
},
new ODataProperty {
Name = "Name", Value = new ODataPrimitiveValue("car")
},
new ODataProperty {
Name = "Material", Value = new ODataPrimitiveValue("gold")
},
},
};
ODataJsonLightDeltaWriter writer = new ODataJsonLightDeltaWriter(outputContext, this.GetProducts(), this.GetProductType());
writer.WriteStart(feed);
writer.WriteStart(derivedEntity);
writer.WriteEnd();
writer.WriteEnd();
writer.Flush();
this.TestPayload().Should().Be("{\"@odata.context\":\"http://host/service/$metadata#Products/$delta\",\"value\":[{\"@odata.type\":\"#MyNS.PhysicalProduct\",\"Id\":1,\"Name\":\"car\",\"Material\":\"gold\"}]}");
}
public async Task WriteObjectInlineAsync_Sets_DeltaLink()
{
// Arrange
IEnumerable instance = new object[0];
ODataDeltaResourceSet deltaResourceSet = new ODataDeltaResourceSet {
DeltaLink = new Uri("http://deltalink.com/")
};
Mock <IODataSerializerProvider> serializeProvider = new Mock <IODataSerializerProvider>();
Mock <ODataDeltaResourceSetSerializer> serializer = new Mock <ODataDeltaResourceSetSerializer>(serializeProvider.Object);
serializer.CallBase = true;
serializer.Setup(s => s.CreateODataDeltaResourceSet(instance, _customersType, _writeContext)).Returns(deltaResourceSet);
var mockWriter = new Mock <ODataWriter>();
mockWriter.Setup(m => m.WriteStartAsync(deltaResourceSet));
mockWriter
.Setup(m => m.WriteEndAsync())
.Callback(() =>
{
Assert.Equal("http://deltalink.com/", deltaResourceSet.DeltaLink.AbsoluteUri);
})
.Returns(Task.CompletedTask)
.Verifiable();
// Act
await serializer.Object.WriteObjectInlineAsync(instance, _customersType, mockWriter.Object, _writeContext);
// Assert
mockWriter.Verify();
}
/// <summary>
/// Read the delta resource set.
/// </summary>
/// <param name="reader">The OData reader.</param>
/// <param name="itemsStack">The item stack.</param>
/// <param name="topLevelItem">The top level item.</param>
private static void ReadDeltaResourceSet(ODataReader reader, Stack <ODataItemWrapper> itemsStack, ref ODataItemWrapper topLevelItem)
{
Contract.Assert(reader != null);
Contract.Assert(itemsStack != null);
Contract.Assert(ODataReaderState.DeltaResourceSetStart == reader.State);
ODataDeltaResourceSet deltaResourceSet = (ODataDeltaResourceSet)reader.Item;
Contract.Assert(deltaResourceSet != null, "Delta ResourceSet should never be null.");
ODataDeltaResourceSetWrapper deltaResourceSetWrapper = new ODataDeltaResourceSetWrapper(deltaResourceSet);
if (itemsStack.Count > 0)
{
ODataNestedResourceInfoWrapper parentNestedResourceInfo = (ODataNestedResourceInfoWrapper)itemsStack.Peek();
Contract.Assert(parentNestedResourceInfo != null, "this has to be an inner delta resource set. inner delta resource sets always have a nested resource info.");
Contract.Assert(parentNestedResourceInfo.NestedResourceInfo.IsCollection == true, "Only collection nested properties can contain delta resource set as their child.");
Contract.Assert(parentNestedResourceInfo.NestedItems.Count == 0, "Each nested property can contain only one delta resource set as its direct child.");
parentNestedResourceInfo.NestedItems.Add(deltaResourceSetWrapper);
}
else
{
topLevelItem = deltaResourceSetWrapper;
}
itemsStack.Push(deltaResourceSetWrapper);
}
public async Task WriteDeltaFeedInlineAsync_Sets_NextPageLink_OnWriteEndAsync()
{
// Arrange
IEnumerable instance = new object[0];
ODataDeltaResourceSet deltafeed = new ODataDeltaResourceSet {
NextPageLink = new Uri("http://nextlink.com/")
};
Mock <ODataSerializerProvider> serializeProvider = new Mock <ODataSerializerProvider>();
Mock <ODataDeltaFeedSerializer> serializer = new Mock <ODataDeltaFeedSerializer>(serializeProvider.Object);
serializer.CallBase = true;
serializer.Setup(s => s.CreateODataDeltaFeed(instance, _customersType, _writeContext)).Returns(deltafeed);
var mockWriter = new Mock <ODataWriter>();
mockWriter.Setup(m => m.WriteStartAsync(It.Is <ODataDeltaResourceSet>(f => f.NextPageLink == null))).Verifiable();
mockWriter
.Setup(m => m.WriteEndAsync())
.Callback(() =>
{
Assert.Equal("http://nextlink.com/", deltafeed.NextPageLink.AbsoluteUri);
})
.Returns(Task.CompletedTask)
.Verifiable();
// Act
await serializer.Object.WriteDeltaFeedInlineAsync(instance, _customersType, mockWriter.Object, _writeContext);
// Assert
mockWriter.Verify();
}
/// <summary>
/// Create the <see cref="ODataDeltaResourceSet"/> to be written for the given feed instance.
/// </summary>
/// <param name="feedInstance">The instance representing the feed being written.</param>
/// <param name="feedType">The EDM type of the feed being written.</param>
/// <param name="writeContext">The serializer context.</param>
/// <returns>The created <see cref="ODataDeltaResourceSet"/> object.</returns>
public virtual ODataDeltaResourceSet CreateODataDeltaFeed(IEnumerable feedInstance, IEdmCollectionTypeReference feedType,
ODataSerializerContext writeContext)
{
ODataDeltaResourceSet feed = new ODataDeltaResourceSet();
if (writeContext.ExpandedResource == null)
{
// If we have more OData format specific information apply it now, only if we are the root feed.
PageResult odataFeedAnnotations = feedInstance as PageResult;
if (odataFeedAnnotations != null)
{
feed.Count = odataFeedAnnotations.Count;
feed.NextPageLink = odataFeedAnnotations.NextPageLink;
}
else if (writeContext.Request != null)
{
feed.NextPageLink = writeContext.InternalRequest.Context.NextLink;
feed.DeltaLink = writeContext.InternalRequest.Context.DeltaLink;
long?countValue = writeContext.InternalRequest.Context.TotalCount;
if (countValue.HasValue)
{
feed.Count = countValue.Value;
}
}
}
return(feed);
}
public void WriteContainedEntityInDeltaFeed()
{
this.TestInit(this.GetModel());
ODataDeltaResourceSet feed = new ODataDeltaResourceSet();
ODataResource containedEntry = new ODataResource()
{
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 ODataResourceSerializationInfo()
{
NavigationSourceEntityTypeName = "MyNS.ProductDetail",
NavigationSourceName = "Products(1)/Details",
NavigationSourceKind = EdmNavigationSourceKind.ContainedEntitySet
});
ODataResource containedInContainedEntity = new ODataResource()
{
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 ODataResourceSerializationInfo()
{
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();
this.TestPayload().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\"}]}");
}
public void WriteEntityInDeltaFeedWithSelectExpand()
{
this.TestInit(this.GetModel());
ODataDeltaResourceSet feed = new ODataDeltaResourceSet();
ODataResource orderEntry = new ODataResource()
{
SerializationInfo = new ODataResourceSerializationInfo
{
NavigationSourceEntityTypeName = "Order",
NavigationSourceKind = EdmNavigationSourceKind.EntitySet,
NavigationSourceName = "Orders"
},
};
ODataNestedResourceInfo shippingAddressInfo = new ODataNestedResourceInfo
{
Name = "ShippingAddress",
IsCollection = false
};
ODataResource shippingAddress = new ODataResource
{
Properties = new List <ODataProperty>
{
new ODataProperty {
Name = "City", Value = "Shanghai"
},
}
};
var result = new ODataQueryOptionParser(this.GetModel(), this.GetCustomerType(), this.GetCustomers(), new Dictionary <string, string> {
{ "$expand", "Orders($select=ShippingAddress)" }, { "$select", "ContactName" }
}).ParseSelectAndExpand();
ODataUri odataUri = new ODataUri()
{
ServiceRoot = new Uri("http://host/service"),
SelectAndExpand = result
};
var outputContext = CreateJsonLightOutputContext(this.stream, this.GetModel(), false, odataUri);
ODataJsonLightDeltaWriter writer = new ODataJsonLightDeltaWriter(outputContext, this.GetProducts(), this.GetProductType());
writer.WriteStart(feed);
writer.WriteStart(orderEntry);
writer.WriteStart(shippingAddressInfo);
writer.WriteStart(shippingAddress);
writer.WriteEnd();
writer.WriteEnd();
writer.WriteEnd();
writer.WriteEnd();
writer.Flush();
this.TestPayload().Should().Be("{\"@odata.context\":\"http://host/service/$metadata#Products(ContactName,Orders(ShippingAddress))/$delta\",\"value\":[{\"@odata.context\":\"http://host/service/$metadata#Orders/$entity\",\"ShippingAddress\":{\"City\":\"Shanghai\"}}]}");
}
public void CreateODataDeltaFeed_Sets_NextPageLinkForPageResult()
{
// Arrange
ODataDeltaFeedSerializer serializer = new ODataDeltaFeedSerializer(_serializerProvider);
Uri expectedNextLink = new Uri("http://nextlink.com");
const long ExpectedCountValue = 1000;
var result = new PageResult <Customer>(_customers, expectedNextLink, ExpectedCountValue);
// Act
ODataDeltaResourceSet feed = serializer.CreateODataDeltaFeed(result, _customersType, new ODataSerializerContext());
// Assert
Assert.Equal(expectedNextLink, feed.NextPageLink);
}
public void CreateODataDeltaResourceSet_Sets_CountValueForPageResult()
{
// Arrange
Mock <ODataSerializerProvider> serializeProvider = new Mock <ODataSerializerProvider>();
ODataDeltaResourceSetSerializer serializer = new ODataDeltaResourceSetSerializer(serializeProvider.Object);
Uri expectedNextLink = new Uri("http://nextlink.com");
const long ExpectedCountValue = 1000;
var result = new PageResult <Customer>(_customers, expectedNextLink, ExpectedCountValue);
// Act
ODataDeltaResourceSet feed = serializer.CreateODataDeltaResourceSet(result, _customersType, new ODataSerializerContext());
// Assert
Assert.Equal(ExpectedCountValue, feed.Count);
}
private void WriteAnnotationAtEndInDeltaFeed(string expectedPayload, long?count, Uri nextLink, Uri deltaLink)
{
Action <ODataWriter> action = (odataWriter) =>
{
var feedToWrite = new ODataDeltaResourceSet {
Id = new Uri("urn:feedId")
};
odataWriter.WriteStart(feedToWrite);
feedToWrite.InstanceAnnotations.Add(new ODataInstanceAnnotation("Custom.EndAnnotation", PrimitiveValue1));
feedToWrite.Count = count;
feedToWrite.NextPageLink = nextLink;
feedToWrite.DeltaLink = deltaLink;
odataWriter.WriteEnd();
};
WriteDeltaFeedAnnotationsAndValidatePayload(action, EntitySet, expectedPayload);
}
public void WriteDeltaFeedInline_Writes_CreateODataFeedOutput()
{
// Arrange
IEnumerable instance = new object[0];
ODataDeltaResourceSet deltafeed = new ODataDeltaResourceSet();
Mock <ODataDeltaFeedSerializer> serializer = new Mock <ODataDeltaFeedSerializer>(_serializerProvider);
serializer.CallBase = true;
serializer.Setup(s => s.CreateODataDeltaFeed(instance, _customersType, _writeContext)).Returns(deltafeed);
Mock <ODataWriter> writer = new Mock <ODataWriter>();
writer.Setup(s => s.WriteStart(deltafeed)).Verifiable();
// Act
serializer.Object.WriteDeltaFeedInline(instance, _customersType, writer.Object, _writeContext);
// Assert
writer.Verify();
}
public async Task WriteObjectInlineAsync_Writes_CreateODataFeedOutput()
{
// Arrange
IEnumerable instance = new object[0];
ODataDeltaResourceSet deltaResourceSet = new ODataDeltaResourceSet();
Mock <ODataSerializerProvider> provider = new Mock <ODataSerializerProvider>();
Mock <ODataDeltaResourceSetSerializer> serializer = new Mock <ODataDeltaResourceSetSerializer>(provider.Object);
serializer.CallBase = true;
serializer.Setup(s => s.CreateODataDeltaResourceSet(instance, _customersType, _writeContext)).Returns(deltaResourceSet);
Mock <ODataWriter> writer = new Mock <ODataWriter>();
writer.Setup(s => s.WriteStartAsync(deltaResourceSet)).Verifiable();
// Act
await serializer.Object.WriteObjectInlineAsync(instance, _customersType, writer.Object, _writeContext);
// Assert
writer.Verify();
}
public static void WriteDeltaFeed(ODataDeltaWriter deltaWriter, List <ODataItem> items, bool?countOption, Uri newDeltaLink)
{
var deltaFeed = new ODataDeltaResourceSet
{
DeltaLink = newDeltaLink
};
if (countOption == true)
{
deltaFeed.Count = items.Cast <object>().Count();
}
deltaWriter.WriteStart(deltaFeed);
foreach (ODataItem item in items)
{
var entry = item as ODataResource;
var deletedEntry = item as ODataDeltaDeletedEntry;
var deltaLink = item as ODataDeltaLink;
var deltaDeletedLink = item as ODataDeltaDeletedLink;
if (entry != null)
{
deltaWriter.WriteStart(entry);
deltaWriter.WriteEnd();
}
else if (deletedEntry != null)
{
deltaWriter.WriteDeltaDeletedEntry(deletedEntry);
}
else if (deltaLink != null)
{
deltaWriter.WriteDeltaLink(deltaLink);
}
else if (deltaDeletedLink != null)
{
deltaWriter.WriteDeltaDeletedLink(deltaDeletedLink);
}
}
deltaWriter.WriteEnd();
}
public void RequestDeltaLink()
{
var customersSet = Model.FindDeclaredEntitySet("Customers");
var customerType = customersSet.EntityType();
ODataMessageReaderSettings readerSettings = new ODataMessageReaderSettings()
{
BaseUri = ServiceBaseUri
};
foreach (var mimeType in deltaMimeTypes)
{
var requestMessage = new HttpWebRequestMessage(new Uri(ServiceBaseUri.AbsoluteUri + "$delta", UriKind.Absolute));
requestMessage.SetHeader("Accept", mimeType);
var responseMessage = requestMessage.GetResponse();
Assert.Equal(200, responseMessage.StatusCode);
if (!mimeType.Contains(MimeTypes.ODataParameterNoMetadata))
{
using (var messageReader = new ODataMessageReader(responseMessage, readerSettings, Model))
{
var deltaReader = messageReader.CreateODataDeltaReader(customersSet, customerType);
while (deltaReader.Read())
{
if (deltaReader.State == ODataDeltaReaderState.DeltaResourceEnd)
{
ODataResource entry = deltaReader.Item as ODataResource;
}
else if (deltaReader.State == ODataDeltaReaderState.DeltaResourceSetEnd)
{
ODataDeltaResourceSet feed = deltaReader.Item as ODataDeltaResourceSet;
}
}
Assert.Equal(ODataDeltaReaderState.Completed, deltaReader.State);
}
}
}
}
/// <summary>
/// Create the <see cref="ODataDeltaResourceSet"/> to be written for the given feed instance.
/// </summary>
/// <param name="feedInstance">The instance representing the feed being written.</param>
/// <param name="feedType">The EDM type of the feed being written.</param>
/// <param name="writeContext">The serializer context.</param>
/// <returns>The created <see cref="ODataDeltaResourceSet"/> object.</returns>
public virtual ODataDeltaResourceSet CreateODataDeltaFeed(IEnumerable feedInstance, IEdmCollectionTypeReference feedType,
ODataSerializerContext writeContext)
{
ODataDeltaResourceSet feed = new ODataDeltaResourceSet();
if (writeContext.ExpandedResource == null)
{
// If we have more OData format specific information apply it now, only if we are the root feed.
PageResult odataFeedAnnotations = feedInstance as PageResult;
if (odataFeedAnnotations != null)
{
feed.Count = odataFeedAnnotations.Count;
feed.NextPageLink = odataFeedAnnotations.NextPageLink;
}
else if (writeContext.Request != null)
{
feed.NextPageLink = writeContext.Request.ODataProperties().NextLink;
feed.DeltaLink = writeContext.Request.ODataProperties().DeltaLink;
long?countValue = writeContext.Request.ODataProperties().TotalCount;
if (countValue.HasValue)
{
feed.Count = countValue.Value;
}
}
}
else
{
// nested feed
ITruncatedCollection truncatedCollection = feedInstance as ITruncatedCollection;
if (truncatedCollection != null && truncatedCollection.IsTruncated)
{
feed.NextPageLink = GetNestedNextPageLink(writeContext, truncatedCollection.PageSize);
}
}
return(feed);
}
/// <summary>
/// Asynchronously start writing a delta resource set.
/// </summary>
/// <param name="deltaResourceSet">Delta resource set/collection to write.</param>
/// <returns>A task instance that represents the asynchronous write operation.</returns>
public override Task WriteStartAsync(ODataDeltaResourceSet deltaResourceSet)
{
return(this.resourceWriter.WriteStartAsync(deltaResourceSet));
}
/// <summary>
/// Initializes a new instance of <see cref="ODataDeltaResourceSetWrapper"/>.
/// </summary>
/// <param name="deltaResourceSet">The wrapped delta resource set item.</param>
public ODataDeltaResourceSetWrapper(ODataDeltaResourceSet deltaResourceSet)
{
DeltaResourceSet = deltaResourceSet;
DeltaItems = new List <ODataItemWrapper>();
}
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 ODataDeltaResourceSet();
var deltaEntry = new ODataResource
{
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 ODataResource
{
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 ODataResourceSerializationInfo
{
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 ODataDeltaResourceSet();
var deltaEntry = new ODataResource
{
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 ODataResource
{
Id = new Uri(ServiceConstants.ServiceBaseUri, "Accounts(103)/MyPaymentInstruments(103901)/BillingStatements(103901005)"),
TypeName = "Microsoft.Test.OData.Services.ODataWCFService.Statement",
Properties = new[]
{
new ODataProperty {
Name = "TransactionType", Value = "OnlinePurchase"
},
new ODataProperty {
Name = "TransactionDescription", Value = "unknown purchase"
},
new ODataProperty {
Name = "Amount", Value = 32.1
}
}
};
navigationEntry.SetSerializationInfo(new ODataResourceSerializationInfo
{
NavigationSourceEntityTypeName = "Microsoft.Test.OData.Services.ODataWCFService.Statement",
NavigationSourceKind = EdmNavigationSourceKind.ContainedEntitySet,
NavigationSourceName = "Accounts(103)/MyPaymentInstruments(103901)/BillingStatements"
});
var addedLink = new ODataDeltaLink(
new Uri(ServiceConstants.ServiceBaseUri, "Accounts(103)/MyPaymentInstruments(103901)"),
new Uri(ServiceConstants.ServiceBaseUri, "Accounts(103)/MyPaymentInstruments(103901)/BillingStatements(103901005)"),
"BillingStatements");
deltaWriter.WriteStart(deltaFeed);
deltaWriter.WriteStart(deltaEntry);
deltaWriter.WriteEnd();
deltaWriter.WriteDeltaDeletedEntry(deletedEntry);
deltaWriter.WriteDeltaDeletedLink(deletedLink);
deltaWriter.WriteStart(navigationEntry);
deltaWriter.WriteEnd();
deltaWriter.WriteDeltaLink(addedLink);
deltaWriter.WriteEnd();
}
}
else if (deltaToken == "derived")
{
originalUri = new Uri(ServiceConstants.ServiceBaseUri, "People?$expand=Microsoft.Test.OData.Services.ODataWCFService.Customer/Orders");
using (var messageWriter = this.CreateMessageWriter(responseMessage))
{
var peopleSet = this.DataSource.Model.FindDeclaredEntitySet("People");
var personType = peopleSet.EntityType();
ODataDeltaWriter deltaWriter = messageWriter.CreateODataDeltaWriter(peopleSet, personType);
var deltaFeed = new ODataDeltaResourceSet();
var deltaEntry = new ODataResource
{
Id = new Uri(ServiceConstants.ServiceBaseUri, "People(1)"),
TypeName = "Microsoft.Test.OData.Services.ODataWCFService.Customer",
Properties = new[]
{
new ODataProperty {
Name = "City", Value = "GGGG"
}
}
};
var addedLink = new ODataDeltaLink(
new Uri(ServiceConstants.ServiceBaseUri, "People(1)"), new Uri(ServiceConstants.ServiceBaseUri, "Orders(7)"), "Orders");
var deletedEntry = new ODataDeltaDeletedEntry(
new Uri(ServiceConstants.ServiceBaseUri, "People(2)").AbsoluteUri,
DeltaDeletedEntryReason.Changed);
var deletedLink = new ODataDeltaDeletedLink(
new Uri(ServiceConstants.ServiceBaseUri, "People(1)"),
new Uri(ServiceConstants.ServiceBaseUri, "Orders(8)"),
"Orders");
var navigationEntry = new ODataResource
{
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 ODataResourceSerializationInfo
{
NavigationSourceEntityTypeName = "Microsoft.Test.OData.Services.ODataWCFService.Order",
NavigationSourceKind = EdmNavigationSourceKind.EntitySet,
NavigationSourceName = "Orders"
});
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 == "expanded")
{
originalUri = new Uri(ServiceConstants.ServiceBaseUri, "Customers?$expand=Orders");
using (var messageWriter = this.CreateMessageWriter(responseMessage))
{
var customerSet = this.DataSource.Model.FindDeclaredEntitySet("Customers");
var orderSet = this.DataSource.Model.FindDeclaredEntitySet("Orders");
var peopleSet = this.DataSource.Model.FindDeclaredEntitySet("People");
var customerType = customerSet.EntityType();
ODataDeltaWriter deltaWriter = messageWriter.CreateODataDeltaWriter(customerSet, customerType);
// Delta feed and entry
var deltaFeed = new ODataDeltaResourceSet
{
DeltaLink = new Uri(ServiceConstants.ServiceBaseUri, "$delta?$token=expanded")
};
var deltaEntry = new ODataResource
{
Id = new Uri(ServiceConstants.ServiceBaseUri, customerSet.Name + "(1)"),
Properties = new[] { new ODataProperty {
Name = "FirstName", Value = "GGGG"
} }
};
var nestedResourceInfoIndeltaEntry = new ODataNestedResourceInfo
{
Name = "HomeAddress",
IsCollection = false,
};
var nestedResource = new ODataResource
{
Properties = new[]
{
new ODataProperty {
Name = "Street", Value = "Zixing Road"
},
new ODataProperty {
Name = "City", Value = "Shanghai"
},
new ODataProperty {
Name = "PostalCode", Value = "200001"
},
}
};
var nestedResourceInfoInExpanded = new ODataNestedResourceInfo
{
Name = "InfoFromCustomer",
IsCollection = false,
};
var nestedResourceInExpanded = new ODataResource
{
Properties = new[]
{
new ODataProperty {
Name = "CustomerMessage", Value = "XXL"
},
}
};
// Expanded feed
var navigationLink = new ODataNestedResourceInfo()
{
Name = "Orders",
IsCollection = true,
};
var expandedFeed = new ODataResourceSet();
var expandedEntry = new ODataResource
{
Id = new Uri(ServiceConstants.ServiceBaseUri, orderSet.Name + "(8)"),
Properties = new[]
{
new ODataProperty {
Name = "OrderDate", Value = new DateTimeOffset(2011, 3, 4, 16, 03, 57, TimeSpan.FromHours(-8))
},
new ODataProperty {
Name = "OrderID", Value = 8
},
new ODataProperty {
Name = "OrderShelfLifes", Value = new ODataCollectionValue {
Items = new object[] { new TimeSpan(1) }
}
},
new ODataProperty {
Name = "ShelfLife", Value = new TimeSpan(1)
},
new ODataProperty {
Name = "ShipDate", Value = new Date(2014, 8, 12)
},
new ODataProperty {
Name = "ShipTime", Value = new TimeOfDay(6, 5, 30, 0)
},
}
};
// Expanded entry
var navigationLinkSingle = new ODataNestedResourceInfo()
{
Name = "Parent",
IsCollection = false,
};
var expandedEntrySingle = new ODataResource
{
Id = new Uri(ServiceConstants.ServiceBaseUri, peopleSet.Name + "(2)"),
Properties = new[]
{
new ODataProperty {
Name = "FirstName", Value = "Jill"
},
new ODataProperty {
Name = "LastName", Value = "Jones"
},
new ODataProperty {
Name = "Numbers", Value = new ODataCollectionValue()
},
new ODataProperty {
Name = "Emails", Value = new ODataCollectionValue()
},
new ODataProperty {
Name = "PersonID", Value = 2
},
new ODataProperty {
Name = "Home", Value = GeographyPoint.Create(15.0, 161.8)
},
}
};
// Delta feed and entry
deltaWriter.WriteStart(deltaFeed);
deltaWriter.WriteStart(deltaEntry);
deltaWriter.WriteStart(nestedResourceInfoIndeltaEntry);
deltaWriter.WriteStart(nestedResource);
deltaWriter.WriteEnd();
deltaWriter.WriteEnd();
// Expanded feed
deltaWriter.WriteStart(navigationLink);
deltaWriter.WriteStart(expandedFeed);
deltaWriter.WriteStart(expandedEntry);
deltaWriter.WriteStart(nestedResourceInfoInExpanded);
deltaWriter.WriteStart(nestedResourceInExpanded);
deltaWriter.WriteEnd();
deltaWriter.WriteEnd();
deltaWriter.WriteEnd();
deltaWriter.WriteEnd();
deltaWriter.WriteEnd();
// Expanded entry
deltaWriter.WriteStart(navigationLinkSingle);
deltaWriter.WriteStart(expandedEntrySingle);
deltaWriter.WriteEnd();
deltaWriter.WriteEnd();
// Delta feed and entry
deltaWriter.WriteEnd();
deltaWriter.WriteEnd();
}
}
else if (deltaToken == "projection")
{
originalUri = new Uri(ServiceConstants.ServiceBaseUri, "Customers?$select=PersonID,FirstName,LastName&$expand=Orders($select=OrderID,OrderDate)");
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 ODataDeltaResourceSet();
var deltaEntry1 = new ODataResource
{
Properties = new[]
{
new ODataProperty {
Name = "PersonID", Value = 1
},
new ODataProperty {
Name = "FirstName", Value = "FFFF"
},
new ODataProperty {
Name = "LastName", Value = "LLLL"
},
new ODataProperty {
Name = "City", Value = "Beijing"
}
}
};
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 ODataResource
{
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 ODataResourceSerializationInfo
{
NavigationSourceEntityTypeName = "Microsoft.Test.OData.Services.ODataWCFService.Order",
NavigationSourceKind = EdmNavigationSourceKind.EntitySet,
NavigationSourceName = "Orders"
});
var deletedOrderEntry = new ODataDeltaDeletedEntry(
new Uri(ServiceConstants.ServiceBaseUri, "Orders(20)").AbsoluteUri, DeltaDeletedEntryReason.Deleted);
deletedOrderEntry.SetSerializationInfo(new ODataDeltaSerializationInfo()
{
NavigationSourceName = "Orders"
});
var deltaEntry2 = new ODataResource
{
Properties = new[]
{
new ODataProperty {
Name = "PersonID", Value = 2
},
new ODataProperty {
Name = "FirstName", Value = "AAAA"
},
}
};
deltaWriter.WriteStart(deltaFeed);
deltaWriter.WriteStart(deltaEntry1);
deltaWriter.WriteEnd();
deltaWriter.WriteDeltaDeletedLink(deletedLink);
deltaWriter.WriteDeltaLink(addedLink);
deltaWriter.WriteStart(navigationEntry);
deltaWriter.WriteEnd();
deltaWriter.WriteDeltaDeletedEntry(deletedOrderEntry);
deltaWriter.WriteStart(deltaEntry2);
deltaWriter.WriteEnd();
deltaWriter.WriteEnd();
}
}
}
private static void ReadCollectionItem(ODataReader reader, Stack <ODataItemBase> itemsStack, ref ODataItemBase topLevelItem)
{
switch (reader.State)
{
case ODataReaderState.ResourceStart:
ODataResource resource = (ODataResource)reader.Item;
ODataResourceWrapper resourceWrapper = null;
if (resource != null)
{
resourceWrapper = new ODataResourceWrapper(resource);
}
if (itemsStack.Count == 0)
{
Contract.Assert(resource != null, "The top-level resource can never be null.");
topLevelItem = resourceWrapper;
}
else
{
ODataItemBase parentItem = itemsStack.Peek();
ODataResourceSetWrapper parentResourceSet = parentItem as ODataResourceSetWrapper;
if (parentResourceSet != null)
{
parentResourceSet.Resources.Add(resourceWrapper);
}
else
{
ODataNestedResourceInfoWrapper parentNestedResource = parentItem as ODataNestedResourceInfoWrapper;
if (parentNestedResource != null)
{
Contract.Assert(parentNestedResource.NestedResourceInfo.IsCollection == false, "Only singleton nested properties can contain resource as their child.");
Contract.Assert(parentNestedResource.NestedItems.Count == 0, "Each nested property can contain only one resource as its direct child.");
parentNestedResource.NestedItems.Add(resourceWrapper);
}
else
{
ODataDeltaResourceSetWrapper parentDeltaSetResource = (ODataDeltaResourceSetWrapper)parentItem;
parentDeltaSetResource.Resources.Add(resourceWrapper);
}
}
}
itemsStack.Push(resourceWrapper);
break;
case ODataReaderState.ResourceEnd:
Contract.Assert(
itemsStack.Count > 0 && (reader.Item == null || itemsStack.Peek().Item == reader.Item),
"The resource which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.NestedResourceInfoStart:
ODataNestedResourceInfo nestedResourceInfo = (ODataNestedResourceInfo)reader.Item;
Contract.Assert(nestedResourceInfo != null, "nested resource info should never be null.");
ODataNestedResourceInfoWrapper nestedResourceInfoWrapper = new ODataNestedResourceInfoWrapper(nestedResourceInfo);
Contract.Assert(itemsStack.Count > 0, "nested resource info can't appear as top-level item.");
{
ODataResourceWrapper parentResource = (ODataResourceWrapper)itemsStack.Peek();
parentResource.NestedResourceInfos.Add(nestedResourceInfoWrapper);
}
itemsStack.Push(nestedResourceInfoWrapper);
break;
case ODataReaderState.NestedResourceInfoEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek().Item == reader.Item,
"The nested resource info which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.ResourceSetStart:
ODataResourceSet resourceSet = (ODataResourceSet)reader.Item;
Contract.Assert(resourceSet != null, "ResourceSet should never be null.");
ODataResourceSetWrapper resourceSetWrapper = new ODataResourceSetWrapper(resourceSet);
if (itemsStack.Count > 0)
{
ODataNestedResourceInfoWrapper parentNestedResourceInfo = (ODataNestedResourceInfoWrapper)itemsStack.Peek();
Contract.Assert(parentNestedResourceInfo != null, "this has to be an inner resource set. inner resource sets always have a nested resource info.");
Contract.Assert(parentNestedResourceInfo.NestedResourceInfo.IsCollection == true, "Only collection nested properties can contain resource set as their child.");
parentNestedResourceInfo.NestedItems.Add(resourceSetWrapper);
}
else
{
topLevelItem = resourceSetWrapper;
}
itemsStack.Push(resourceSetWrapper);
break;
case ODataReaderState.ResourceSetEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek().Item == reader.Item, "The resource set which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.EntityReferenceLink:
ODataEntityReferenceLink entityReferenceLink = (ODataEntityReferenceLink)reader.Item;
Contract.Assert(entityReferenceLink != null, "Entity reference link should never be null.");
ODataEntityReferenceLinkBase entityReferenceLinkWrapper = new ODataEntityReferenceLinkBase(entityReferenceLink);
Contract.Assert(itemsStack.Count > 0, "Entity reference link should never be reported as top-level item.");
{
ODataNestedResourceInfoWrapper parentNavigationLink = (ODataNestedResourceInfoWrapper)itemsStack.Peek();
parentNavigationLink.NestedItems.Add(entityReferenceLinkWrapper);
}
break;
case ODataReaderState.DeltaResourceSetStart:
ODataDeltaResourceSet deltaResourceSet = (ODataDeltaResourceSet)reader.Item;
Contract.Assert(deltaResourceSet != null, "ResourceSet should never be null.");
ODataDeltaResourceSetWrapper deltaResourceSetWrapper = new ODataDeltaResourceSetWrapper(deltaResourceSet);
if (itemsStack.Count > 0)
{
ODataNestedResourceInfoWrapper parentNestedResourceInfo = (ODataNestedResourceInfoWrapper)itemsStack.Peek();
Contract.Assert(parentNestedResourceInfo != null, "this has to be an inner resource set. inner resource sets always have a nested resource info.");
Contract.Assert(parentNestedResourceInfo.NestedResourceInfo.IsCollection == true, "Only collection nested properties can contain resource set as their child.");
parentNestedResourceInfo.NestedItems.Add(deltaResourceSetWrapper);
}
else
{
topLevelItem = deltaResourceSetWrapper;
}
itemsStack.Push(deltaResourceSetWrapper);
break;
case ODataReaderState.DeltaResourceSetEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek().Item == reader.Item, "The resource set which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.DeletedResourceStart:
ODataDeletedResource deletedResource = (ODataDeletedResource)reader.Item;
if (deletedResource != null)
{
// Note: I expect that deleted resourced will not have other nested resources
ODataDeletedResourceWrapper deletedResourceWrapper = new ODataDeletedResourceWrapper(deletedResource);
ODataItemBase parentItem = itemsStack.Peek();
ODataDeltaResourceSetWrapper parentDeltaSetResource = parentItem as ODataDeltaResourceSetWrapper;
if (parentDeltaSetResource != null)
{
parentDeltaSetResource.DeletedResources.Add(deletedResourceWrapper);
}
}
break;
case ODataReaderState.DeletedResourceEnd:
break;
default:
Contract.Assert(false, "We should never get here, it means the ODataReader reported a wrong state.");
break;
}
}
public void WriteContainedEntityInDeltaFeedWithSelectExpand()
{
this.TestInit(this.GetModel());
ODataDeltaResourceSet feed = new ODataDeltaResourceSet();
ODataResource entry = new ODataResource()
{
TypeName = "MyNS.Product",
Properties = new[]
{
new ODataProperty {
Name = "Id", Value = new ODataPrimitiveValue(1)
},
new ODataProperty {
Name = "Name", Value = new ODataPrimitiveValue("Car")
},
},
};
ODataResource containedEntry = new ODataResource()
{
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 ODataResourceSerializationInfo()
{
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)" }, { "$select", "Name" }
}).ParseSelectAndExpand();
ODataUri odataUri = new ODataUri()
{
ServiceRoot = new Uri("http://host/service"),
SelectAndExpand = result
};
var outputContext = CreateJsonLightOutputContext(this.stream, this.GetModel(), false, odataUri);
ODataJsonLightDeltaWriter writer = new ODataJsonLightDeltaWriter(outputContext, this.GetProducts(), this.GetProductType());
writer.WriteStart(feed);
writer.WriteStart(containedEntry);
writer.WriteEnd();
writer.WriteStart(entry);
writer.WriteEnd();
writer.WriteEnd();
writer.Flush();
this.TestPayload().Should().Be("{\"@odata.context\":\"http://host/service/$metadata#Products(Name,Details(Detail))/$delta\",\"value\":[{\"@odata.context\":\"http://host/service/$metadata#Products(1)/Details/$entity\",\"Id\":1,\"Detail\":\"made in china\"},{\"Id\":1,\"Name\":\"Car\"}]}");
}
/// <summary>
/// Initializes a new instance of <see cref="ODataDeltaResourceSetWrapper"/>.
/// </summary>
/// <param name="deltaResourceSet">The wrapped delta resource set item.</param>
public ODataDeltaResourceSetWrapper(ODataDeltaResourceSet deltaResourceSet)
{
ResourceBases = new List <ODataResourceBaseWrapper>();
DeltaLinks = new List <ODataDeltaLinkBaseWrapper>();
DeltaResourceSet = deltaResourceSet;
}
private async Task WriteFeed(IEnumerable enumerable, IEdmTypeReference feedType, ODataDeltaWriter writer,
ODataSerializerContext writeContext)
{
Contract.Assert(writer != null);
Contract.Assert(writeContext != null);
Contract.Assert(enumerable != null);
Contract.Assert(feedType != null);
ODataDeltaResourceSet deltaFeed = CreateODataDeltaFeed(enumerable, feedType.AsCollection(), writeContext);
if (deltaFeed == null)
{
throw new SerializationException(Error.Format(SRResources.CannotSerializerNull, DeltaFeed));
}
// save this for later to support JSON odata.streaming.
Uri nextPageLink = deltaFeed.NextPageLink;
deltaFeed.NextPageLink = null;
//Start writing of the Delta Feed
writer.WriteStart(deltaFeed);
//Iterate over all the entries present and select the appropriate write method.
//Write method creates ODataDeltaDeletedEntry / ODataDeltaDeletedLink / ODataDeltaLink or ODataEntry.
foreach (object entry in enumerable)
{
if (entry == null)
{
throw new SerializationException(SRResources.NullElementInCollection);
}
IEdmChangedObject edmChangedObject = entry as IEdmChangedObject;
if (edmChangedObject == null)
{
throw new SerializationException(Error.Format(SRResources.CannotWriteType, GetType().Name, enumerable.GetType().FullName));
}
switch (edmChangedObject.DeltaKind)
{
case EdmDeltaEntityKind.DeletedEntry:
WriteDeltaDeletedEntry(entry, writer, writeContext);
break;
case EdmDeltaEntityKind.DeletedLinkEntry:
WriteDeltaDeletedLink(entry, writer, writeContext);
break;
case EdmDeltaEntityKind.LinkEntry:
WriteDeltaLink(entry, writer, writeContext);
break;
case EdmDeltaEntityKind.Entry:
{
IEdmEntityTypeReference elementType = GetEntityType(feedType);
ODataResourceSerializer entrySerializer = SerializerProvider.GetEdmTypeSerializer(writeContext.Context, elementType) as ODataResourceSerializer;
if (entrySerializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeSerialized, elementType.FullName(), typeof(ODataOutputFormatter).Name));
}
await entrySerializer.WriteDeltaObjectInline(entry, elementType, writer, writeContext);
break;
}
default:
break;
}
}
// Subtle and surprising behavior: If the NextPageLink property is set before calling WriteStart(feed),
// the next page link will be written early in a manner not compatible with odata.streaming=true. Instead, if
// the next page link is not set when calling WriteStart(feed) but is instead set later on that feed
// object before calling WriteEnd(), the next page link will be written at the end, as required for
// odata.streaming=true support.
if (nextPageLink != null)
{
deltaFeed.NextPageLink = nextPageLink;
}
//End Writing of the Delta Feed
writer.WriteEnd();
}
/// <summary>
/// Creates a function that takes in an object and generates nextlink uri.
/// </summary>
/// <param name="deltaFeed">The resource set describing a collection of structured objects.</param>
/// <param name="enumerable">>The instance representing the resourceSet being written.</param>
/// <param name="writeContext">The serializer context.</param>
/// <returns>The function that generates the NextLink from an object.</returns>
/// <returns></returns>
internal static Func <object, Uri> GetNextLinkGenerator(ODataDeltaResourceSet deltaFeed, IEnumerable enumerable, ODataSerializerContext writeContext)
{
return(ODataResourceSetSerializer.GetNextLinkGenerator(deltaFeed, enumerable, writeContext));
}
private async Task WriteFeedAsync(IEnumerable enumerable, IEdmTypeReference feedType, ODataWriter writer,
ODataSerializerContext writeContext)
{
Contract.Assert(writer != null);
Contract.Assert(writeContext != null);
Contract.Assert(enumerable != null);
Contract.Assert(feedType != null);
IEdmStructuredTypeReference elementType = GetResourceType(feedType);
if (elementType.IsComplex())
{
ODataResourceSet resourceSet = new ODataResourceSet()
{
TypeName = feedType.FullName()
};
await writer.WriteStartAsync(resourceSet).ConfigureAwait(false);
ODataResourceSerializer entrySerializer = SerializerProvider.GetEdmTypeSerializer(elementType) as ODataResourceSerializer;
if (entrySerializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeSerialized, elementType.FullName()));
}
foreach (object entry in enumerable)
{
await entrySerializer.WriteDeltaObjectInlineAsync(entry, elementType, writer, writeContext).ConfigureAwait(false);
}
}
else
{
ODataDeltaResourceSet deltaFeed = CreateODataDeltaFeed(enumerable, feedType.AsCollection(), writeContext);
if (deltaFeed == null)
{
throw new SerializationException(Error.Format(SRResources.CannotSerializerNull, DeltaFeed));
}
// save the next page link for later to support JSON odata.streaming.
Func <object, Uri> nextLinkGenerator = GetNextLinkGenerator(deltaFeed, enumerable, writeContext);
deltaFeed.NextPageLink = null;
//Start writing of the Delta Feed
await writer.WriteStartAsync(deltaFeed).ConfigureAwait(false);
object lastResource = null;
//Iterate over all the entries present and select the appropriate write method.
//Write method creates ODataDeltaDeletedEntry / ODataDeltaDeletedLink / ODataDeltaLink or ODataEntry.
foreach (object entry in enumerable)
{
if (entry == null)
{
throw new SerializationException(SRResources.NullElementInCollection);
}
lastResource = entry;
IEdmChangedObject edmChangedObject = entry as IEdmChangedObject;
if (edmChangedObject == null)
{
throw new SerializationException(Error.Format(
SRResources.CannotWriteType, GetType().Name, enumerable.GetType().FullName));
}
switch (edmChangedObject.DeltaKind)
{
case EdmDeltaEntityKind.DeletedEntry:
await WriteDeltaDeletedEntryAsync(entry, writer, writeContext).ConfigureAwait(false);
break;
case EdmDeltaEntityKind.DeletedLinkEntry:
await WriteDeltaDeletedLinkAsync(entry, writer, writeContext).ConfigureAwait(false);
break;
case EdmDeltaEntityKind.LinkEntry:
await WriteDeltaLinkAsync(entry, writer, writeContext).ConfigureAwait(false);
break;
case EdmDeltaEntityKind.Entry:
{
ODataResourceSerializer entrySerializer = SerializerProvider.GetEdmTypeSerializer(elementType) as ODataResourceSerializer;
if (entrySerializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeSerialized, elementType.FullName()));
}
await entrySerializer.WriteDeltaObjectInlineAsync(entry, elementType, writer, writeContext)
.ConfigureAwait(false);
break;
}
default:
break;
}
}
// Subtle and surprising behavior: If the NextPageLink property is set before calling WriteStart(feed),
// the next page link will be written early in a manner not compatible with odata.streaming=true. Instead, if
// the next page link is not set when calling WriteStart(feed) but is instead set later on that feed
// object before calling WriteEnd(), the next page link will be written at the end, as required for
// odata.streaming=true support.
deltaFeed.NextPageLink = nextLinkGenerator(lastResource);
}
//End Writing of the Delta Feed
await writer.WriteEndAsync().ConfigureAwait(false);
}
private void ValidateTuples(IEnumerable <Tuple <ODataItem, ODataDeltaReaderState, ODataReaderState> > tuples, Uri nextLink = null, Uri feedDeltaLink = null)
{
foreach (var tuple in tuples)
{
switch (tuple.Item2)
{
case ODataDeltaReaderState.DeltaResourceSetStart:
ODataDeltaResourceSet deltaFeed = tuple.Item1 as ODataDeltaResourceSet;
Assert.NotNull(deltaFeed);
if (deltaFeed.Count.HasValue)
{
Assert.Equal(deltaFeed.Count, feed.Count);
}
break;
case ODataDeltaReaderState.DeltaResourceSetEnd:
Assert.NotNull(tuple.Item1 as ODataDeltaResourceSet);
if (nextLink != null)
{
Assert.Equal(nextLink, ((ODataDeltaResourceSet)tuple.Item1).NextPageLink);
}
if (feedDeltaLink != null)
{
Assert.Equal(feedDeltaLink, ((ODataDeltaResourceSet)tuple.Item1).DeltaLink);
}
break;
case ODataDeltaReaderState.DeltaResourceStart:
Assert.True(tuple.Item1 is ODataResource);
break;
case ODataDeltaReaderState.DeltaResourceEnd:
var deltaResource = tuple.Item1 as ODataResource;
Assert.NotNull(deltaResource);
Assert.NotNull(deltaResource.Id);
if (this.IdEqual(deltaResource.Id, customerUpdated.Id))
{
Assert.True(PropertiesEqual(deltaResource.Properties, customerUpdated.Properties));
}
else if (this.IdEqual(deltaResource.Id, order10643.Id))
{
Assert.True(this.PropertiesEqual(deltaResource.Properties, order10643.Properties));
}
else
{
Assert.True(this.PropertiesEqual(deltaResource.Properties, complexPropertyInOrder10643.Properties));
}
break;
case ODataDeltaReaderState.DeltaDeletedEntry:
var deltaDeletedEntry = tuple.Item1 as ODataDeltaDeletedEntry;
Assert.NotNull(deltaDeletedEntry);
Assert.True(deltaDeletedEntry.Id.EndsWith(customerDeleted.Id));
Assert.Equal(deltaDeletedEntry.Reason, customerDeleted.Reason);
break;
case ODataDeltaReaderState.DeltaLink:
var deltaLink = tuple.Item1 as ODataDeltaLink;
Assert.NotNull(deltaLink);
Assert.True(this.IdEqual(deltaLink.Source, linkToOrder10645.Source));
Assert.Equal(deltaLink.Relationship, linkToOrder10645.Relationship);
Assert.True(this.IdEqual(deltaLink.Target, linkToOrder10645.Target));
break;
case ODataDeltaReaderState.DeltaDeletedLink:
var deltaDeletedLink = tuple.Item1 as ODataDeltaDeletedLink;
Assert.NotNull(deltaDeletedLink);
Assert.True(this.IdEqual(deltaDeletedLink.Source, linkToOrder10643.Source));
Assert.Equal(deltaDeletedLink.Relationship, linkToOrder10643.Relationship);
Assert.True(this.IdEqual(deltaDeletedLink.Target, linkToOrder10643.Target));
break;
case ODataDeltaReaderState.NestedResource:
switch (tuple.Item3)
{
case ODataReaderState.Completed:
case ODataReaderState.Start:
ODataNestedResourceInfo nestedResource = tuple.Item1 as ODataNestedResourceInfo;
Assert.NotNull(nestedResource);
break;
case ODataReaderState.EntityReferenceLink:
break;
case ODataReaderState.ResourceEnd:
ODataResource entry = tuple.Item1 as ODataResource;
Assert.NotNull(entry);
if (entry.TypeName == "MyNS.Order")
{
Assert.Equal(10643, entry.Properties.Single(p => p.Name == "Id").Value);
}
else if (entry.TypeName == "MyNS.Product")
{
Assert.Equal(1, entry.Properties.Single(p => p.Name == "Id").Value);
}
else if (entry.TypeName == "MyNS.ProductDetail")
{
Assert.Equal(1, entry.Properties.Single(p => p.Name == "Id").Value);
}
else if (entry.TypeName == "MyNS.Address")
{
Assert.NotNull(entry.Properties.Single(p => p.Name == "Street").Value);
}
else if (entry.TypeName == "MyNS.City")
{
Assert.NotNull(entry.Properties.Single(p => p.Name == "CityName").Value);
}
break;
case ODataReaderState.ResourceStart:
Assert.NotNull(tuple.Item1 as ODataResource);
break;
case ODataReaderState.ResourceSetEnd:
Assert.NotNull(tuple.Item1 as ODataResourceSet);
break;
case ODataReaderState.ResourceSetStart:
Assert.NotNull(tuple.Item1 as ODataResourceSet);
break;
case ODataReaderState.NestedResourceInfoEnd:
Assert.NotNull(tuple.Item1 as ODataNestedResourceInfo);
break;
case ODataReaderState.NestedResourceInfoStart:
ODataNestedResourceInfo nestedResourceInfo = tuple.Item1 as ODataNestedResourceInfo;
Assert.NotNull(nestedResourceInfo);
Assert.True(nestedResourceInfo.Name.Equals("Details") || nestedResourceInfo.Name.Equals("Address") || nestedResourceInfo.Name.Equals("City"));
break;
default:
Assert.True(false, "Wrong reader sub state.");
break;
}
break;
default:
Assert.True(false, "Wrong reader state.");
break;
}
}
}
/// <summary>
/// Asynchronously start writing a delta resource set.
/// </summary>
/// <param name="deltaResourceSet">Delta resource set/collection to write.</param>
/// <returns>A task instance that represents the asynchronous write operation.</returns>
public override Task WriteStartAsync(ODataDeltaResourceSet deltaResourceSet)
{
return(TaskUtils.GetTaskForSynchronousOperation(() => this.resourceWriter.WriteStart(deltaResourceSet)));
}
/// <summary>
/// Start writing a delta resource set.
/// </summary>
/// <param name="deltaResourceSet">Delta resource set/collection to write.</param>
public override void WriteStart(ODataDeltaResourceSet deltaResourceSet)
{
this.resourceWriter.WriteStart(deltaResourceSet);
}
/// <summary>
/// Initializes a new instance of <see cref="ODataResourceSetWrapper"/>.
/// </summary>
/// <param name="item">The wrapped item.</param>
public ODataDeltaResourceSetWrapper(ODataDeltaResourceSet item)
: base(item)
{
Resources = new List <ODataResourceWrapper>();
DeletedResources = new List <ODataDeletedResourceWrapper>();
}
