public void WritingSingleComplexProppertyWithAllowedTypeAsPropertyTypeWithOrWithoutDerivedTypeConstraintWorks()
{
// Add a <Property Name="Location" Type="NS.Address" />
var locationProperty = this.edmCustomerType.AddStructuralProperty("Location", new EdmComplexTypeReference(this.edmAddressType, false));
ODataNestedResourceInfo nestedResourceInfo = new ODataNestedResourceInfo
{
Name = "Location",
IsCollection = false
};
Action <ODataMessageWriter> writePropertyAction = (messageWriter) =>
{
ODataWriter writer = messageWriter.CreateODataResourceWriter(this.edmMe, this.edmCustomerType); // singleton
writer.WriteStart(this.odataCustomerResource);
writer.WriteStart(nestedResourceInfo);
writer.WriteStart(this.odataUsAddressResource); // UsAddress
writer.WriteEnd();
writer.WriteEnd();
writer.WriteEnd();
};
// Structural property doesn't have the derived type constraint.
string actual = GetWriterOutput(this.edmModel, writePropertyAction);
Assert.Contains("#Me\",\"Id\":7,\"Location\":{\"@odata.type\":\"#NS.UsAddress\",\"Street\":\"RedWay\",\"ZipCode\":98052}}", actual);
// Structural property has the derived type constraint.
SetDerivedTypeAnnotation(this.edmModel, locationProperty, "NS.UsAddress");
string actualWithDerivedTypeConstraint = GetWriterOutput(this.edmModel, writePropertyAction);
Assert.Equal(actual, actualWithDerivedTypeConstraint);
}
private void TestAndMeasure(string propertyType)
{
var entry = GenerateEntry(propertyType);
var entitySet = Model.EntityContainer.FindEntitySet(propertyType);
foreach (var iteration in Benchmark.Iterations)
{
// Reuse the same stream
WriteStream.Seek(0, SeekOrigin.Begin);
using (iteration.StartMeasurement())
{
using (var messageWriter = ODataMessageHelper.CreateMessageWriter(WriteStream, Model, ODataMessageKind.Response, isFullValidation: true))
{
ODataWriter writer = messageWriter.CreateODataResourceSetWriter(entitySet, entitySet.EntityType());
writer.WriteStart(new ODataResourceSet {
Id = new Uri("http://www.odata.org/Perf.svc")
});
for (int i = 0; i < NumberOfEntries; ++i)
{
writer.WriteStart(entry);
writer.WriteEnd();
}
writer.WriteEnd();
writer.Flush();
}
}
}
}
public void WritingSingleComplexProppertyWithNotAllowedTypeWorksWithoutDerivedTypeConstraintButFailedWithDerivedTypeConstraint()
{
// Add a <Property Name="Location" Type="NS.Address" />
var locationProperty = this.edmCustomerType.AddStructuralProperty("Location", new EdmComplexTypeReference(this.edmAddressType, false));
ODataNestedResourceInfo nestedResourceInfo = new ODataNestedResourceInfo
{
Name = "Location",
IsCollection = false
};
Action <ODataMessageWriter> writePropertyAction = (messageWriter) =>
{
ODataWriter writer = messageWriter.CreateODataResourceWriter(this.edmCustomers, this.edmCustomerType); // entityset
writer.WriteStart(this.odataCustomerResource);
writer.WriteStart(nestedResourceInfo);
writer.WriteStart(this.odataCnAddressResource); // CnAddress
writer.WriteEnd();
writer.WriteEnd();
writer.WriteEnd();
};
// Structural property doesn't have the derived type constraint.
string actual = GetWriterOutput(this.edmModel, writePropertyAction);
Assert.Contains("#Customers/$entity\",\"Id\":7,\"Location\":{\"@odata.type\":\"#NS.CnAddress\",\"Street\":\"ShaWay\",", actual);
// Negative test case --Structural property has the derived type constraint.
SetDerivedTypeAnnotation(this.edmModel, locationProperty, "NS.UsAddress");
Action test = () => GetWriterOutput(this.edmModel, writePropertyAction);
var exception = Assert.Throws <ODataException>(test);
Assert.Equal(Strings.WriterValidationUtils_ValueTypeNotAllowedInDerivedTypeConstraint("NS.CnAddress", "property", "Location"), exception.Message);
}
public void WritingResourceWithSameTypeAsEntitySetTypeWithOrWithoutDerivedTypeConstraintWorks()
{
ODataResource anotherCustomerResource = new ODataResource
{
TypeName = "NS.Customer",
Properties = new[] { new ODataProperty {
Name = "Id", Value = 77
} }
};
Action <ODataMessageWriter> writeCustomersAction = (messageWriter) =>
{
ODataWriter writer = messageWriter.CreateODataResourceSetWriter(this.edmCustomers, this.edmCustomerType); // entityset
writer.WriteStart(new ODataResourceSet());
writer.WriteStart(this.odataCustomerResource);
writer.WriteEnd();
writer.WriteStart(anotherCustomerResource);
writer.WriteEnd();
writer.WriteEnd();
};
// EntitySet doesn't have the derived type constraint.
string customersActual = GetWriterOutput(this.edmModel, writeCustomersAction);
Assert.Contains("/$metadata#Customers\",\"value\":[{\"Id\":7},{\"Id\":77}]}", customersActual);
// EntitySet has the derived type constraint.
SetDerivedTypeAnnotation(this.edmModel, this.edmCustomers, "NS.VipCustomer");
string customersActualWithDerivedTypeConstraint = GetWriterOutput(this.edmModel, writeCustomersAction);
Assert.Equal(customersActual, customersActualWithDerivedTypeConstraint);
}
public void WritingResourceForEntitySetWithoutDerivedTypeConstraintsWorksButWithConstraintFailed()
{
Action <ODataMessageWriter> writeCustomersAction = (messageWriter) =>
{
ODataWriter writer = messageWriter.CreateODataResourceSetWriter(this.edmCustomers, this.edmCustomerType); // entityset
writer.WriteStart(new ODataResourceSet());
writer.WriteStart(this.odataCustomerResource);
writer.WriteEnd();
writer.WriteStart(this.odataNormalResource);
writer.WriteEnd();
writer.WriteEnd();
};
// EntitySet doesn't have the derived type constraint.
string normalCustomersActual = GetWriterOutput(this.edmModel, writeCustomersAction);
Assert.Contains("/$metadata#Customers\",\"value\":[{\"Id\":7},{\"@odata.type\":\"#NS.NormalCustomer\",\"Id\":9,\"Email\":\"[email protected]\"}]}", normalCustomersActual);
// Negative test case -- EntitySet has the derived type constraint.
SetDerivedTypeAnnotation(this.edmModel, this.edmCustomers, "NS.VipCustomer");
Action test = () => GetWriterOutput(this.edmModel, writeCustomersAction);
var exception = Assert.Throws <ODataException>(test);
Assert.Equal(Strings.WriterValidationUtils_ValueTypeNotAllowedInDerivedTypeConstraint("NS.NormalCustomer", "navigation source", "Customers"), exception.Message);
}
private void WriteDynamicTypeEntry(object graph, ODataWriter writer, IEdmTypeReference expectedType,
ODataSerializerContext writeContext)
{
var navigationProperties = new Dictionary <IEdmTypeReference, object>();
var entityType = expectedType.Definition as EdmEntityType;
var entry = new ODataEntry()
{
TypeName = expectedType.FullName(),
Properties = CreateODataPropertiesFromDynamicType(entityType, graph, navigationProperties)
};
entry.IsTransient = true;
writer.WriteStart(entry);
foreach (IEdmTypeReference type in navigationProperties.Keys)
{
var entityContext = new EntityInstanceContext(writeContext, expectedType.AsEntity(), graph);
var navigationProperty = entityType.NavigationProperties().FirstOrDefault(p => p.Type.Equals(type));
var navigationLink = CreateNavigationLink(navigationProperty, entityContext);
if (navigationLink != null)
{
writer.WriteStart(navigationLink);
WriteDynamicTypeEntry(navigationProperties[type], writer, type, writeContext);
writer.WriteEnd();
}
}
writer.WriteEnd();
}
public void WritingResourceWithBaseTypeWhileExpectedTypeIsSubTypeThrows()
{
// Arrange
var model = GetGraphModel();
var groups = model.EntityContainer.FindEntitySet("groups");
var group = model.SchemaElements.OfType <IEdmEntityType>().FirstOrDefault(c => c.Name == "group");
ODataResource directoryObject = new ODataResource
{
TypeName = "microsoft.graph.directoryObject",
Properties = new[] { new ODataProperty {
Name = "id", Value = "abc"
} }
};
Action <ODataMessageWriter> writeAction = (messageWriter) =>
{
ODataWriter writer = messageWriter.CreateODataResourceSetWriter(groups, group); // entityset
writer.WriteStart(new ODataResourceSet());
writer.WriteStart(directoryObject);
writer.WriteEnd();
writer.WriteEnd();
};
// Act & Assert
Action test = () => GetWriterOutput(model, writeAction);
var exception = Assert.Throws <ODataException>(test);
Assert.Equal(Strings.ResourceSetWithoutExpectedTypeValidator_IncompatibleTypes("microsoft.graph.directoryObject", "microsoft.graph.group"), exception.Message);
}
public void WritingResourceWithTypeNotInHeritanceTreeWithResourceSetTypeThrows()
{
// Arrange
var model = GetGraphModel();
var directoryObjects = model.EntityContainer.FindEntitySet("directoryObjects");
var directoryObject = model.SchemaElements.OfType <IEdmEntityType>().FirstOrDefault(c => c.Name == "directoryObject");
ODataResource contact = new ODataResource
{
TypeName = "microsoft.graph.contact",
Properties = new[] { new ODataProperty {
Name = "id", Value = "abc"
}, new ODataProperty {
Name = "displayName", Value = "xyz"
} } /*open type*/
};
Action <ODataMessageWriter> writeAction = (messageWriter) =>
{
ODataWriter writer = messageWriter.CreateODataResourceSetWriter(directoryObjects, directoryObject); // entityset
writer.WriteStart(new ODataResourceSet());
writer.WriteStart(contact);
writer.WriteEnd();
writer.WriteEnd();
};
// Act & Assert
Action test = () => GetWriterOutput(model, writeAction);
var exception = Assert.Throws <ODataException>(test);
Assert.Equal(Strings.ResourceSetWithoutExpectedTypeValidator_IncompatibleTypes("microsoft.graph.contact", "microsoft.graph.directoryObject"), exception.Message);
}
public void WritingResourceWithTypeInHeritanceTreeWithResourceSetTypeSuccessed()
{
// Arrange
var model = GetGraphModel();
var directoryObjects = model.EntityContainer.FindEntitySet("directoryObjects");
var directoryObject = model.SchemaElements.OfType <IEdmEntityType>().FirstOrDefault(c => c.Name == "directoryObject");
ODataResource group = new ODataResource
{
TypeName = "microsoft.graph.group",
Properties = new[] { new ODataProperty {
Name = "id", Value = "abc"
}, new ODataProperty {
Name = "displayName", Value = "xyz"
} }
};
Action <ODataMessageWriter> writeAction = (messageWriter) =>
{
ODataWriter writer = messageWriter.CreateODataResourceSetWriter(directoryObjects, directoryObject); // entityset
writer.WriteStart(new ODataResourceSet());
writer.WriteStart(group);
writer.WriteEnd();
writer.WriteEnd();
};
// Act
string actual = GetWriterOutput(model, writeAction);
// Assert
Assert.Equal("{\"@odata.context\":\"http://example.com/$metadata#directoryObjects\",\"value\":[{\"@odata.type\":\"#microsoft.graph.group\",\"id\":\"abc\",\"displayName\":\"xyz\"}]}",
actual);
}
public static void WriteResourceSet(IEdmModel model, ODataWriter odataWriter, object value)
{
Type valueType = value.GetType();
IsCollection(valueType, out Type elementType);
IEdmStructuredType structruedType = model.FindDeclaredType(valueType.FullName) as IEdmStructuredType;
ODataResourceSet resourceSet = new ODataResourceSet
{
TypeName = "Collection(" + elementType.FullName + ")"
};
odataWriter.WriteStart(resourceSet);
IEnumerable items = value as IEnumerable;
foreach (object item in items)
{
if (item == null)
{
odataWriter.WriteStart(resource: null);
odataWriter.WriteEnd();
}
else
{
WriteResource(model, odataWriter, item);
}
}
odataWriter.WriteEnd();
}
private void WriteEntry(ODataWriter odataWriter, int dataSizeKb)
{
var entry = new ODataResource
{
Id = new Uri("http://www.odata.org/Perf.svc/Item(1)"),
EditLink = new Uri("Item(1)", UriKind.Relative),
ReadLink = new Uri("Item(1)", UriKind.Relative),
TypeName = "PerformanceServices.Edm.ExchangeAttachment.Item",
Properties = new[]
{
new ODataProperty {
Name = "HasAttachments", Value = false
},
}
};
var attachmentsP = new ODataNestedResourceInfo()
{
Name = "Attachments", IsCollection = true
};
var attachmentsResourceSet = new ODataResourceSet()
{
TypeName = "Collection(PerformanceServices.Edm.ExchangeAttachment.Attachment)"
};
var attachment = dataSizeKb == 0 ? null
: new ODataResource()
{
TypeName = "PerformanceServices.Edm.ExchangeAttachment.Attachment",
Properties = new[]
{
new ODataProperty {
Name = "Name", Value = "attachment"
},
new ODataProperty {
Name = "IsInline", Value = false
},
new ODataProperty {
Name = "LastModifiedTime", Value = new DateTimeOffset(1987, 6, 5, 4, 3, 21, 0, new TimeSpan(0, 0, 3, 0))
},
new ODataProperty {
Name = "Content", Value = new byte[dataSizeKb * 1024]
},
}
};
odataWriter.WriteStart(entry);
odataWriter.WriteStart(attachmentsP);
odataWriter.WriteStart(attachmentsResourceSet);
if (attachment != null)
{
odataWriter.WriteStart(attachment);
odataWriter.WriteEnd();
}
odataWriter.WriteEnd();
odataWriter.WriteEnd();
odataWriter.WriteEnd();
}
private void WriteResourceSet(IEnumerable enumerable, IEdmTypeReference resourceSetType, ODataWriter writer,
ODataSerializerContext writeContext)
{
Contract.Assert(writer != null);
Contract.Assert(writeContext != null);
Contract.Assert(enumerable != null);
Contract.Assert(resourceSetType != null);
IEdmStructuredTypeReference elementType = GetResourceType(resourceSetType);
ODataEdmTypeSerializer resourceSerializer = SerializerProvider.GetEdmTypeSerializer(elementType);
if (resourceSerializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeSerialized, elementType.FullName()));
}
ODataResourceSet resourceSet = GetResourceSet(enumerable, resourceSetType, elementType, writeContext);
// create the nextLinkGenerator for the current resourceSet and then set the nextpagelink to null to support JSON odata.streaming.
Func <object, Uri> nextLinkGenerator = GetNextLinkGenerator(resourceSet, enumerable, writeContext);
resourceSet.NextPageLink = null;
writer.WriteStart(resourceSet);
object lastResource = null;
foreach (object item in enumerable)
{
lastResource = item;
if (item == null || item is NullEdmComplexObject)
{
if (elementType.IsEntity())
{
throw new SerializationException(SRResources.NullElementInCollection);
}
// for null complex element, it can be serialized as "null" in the collection.
writer.WriteStart(resource: null);
writer.WriteEnd();
}
else
{
resourceSerializer.WriteObjectInline(item, elementType, writer, writeContext);
}
}
// Subtle and surprising behavior: If the NextPageLink property is set before calling WriteStart(resourceSet),
// 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(resourceSet) but is instead set later on that resourceSet
// object before calling WriteEnd(), the next page link will be written at the end, as required for
// odata.streaming=true support.
resourceSet.NextPageLink = nextLinkGenerator(lastResource);
writer.WriteEnd();
}
private async Task SerializeBuffered(OeEntryFactory entryFactory, Db.OeEntityAsyncEnumerator asyncEnumerator, Stream stream)
{
var values = new List <Object>();
while (await asyncEnumerator.MoveNextAsync().ConfigureAwait(false))
{
values.Add(asyncEnumerator.Current);
}
var resourceSet = new ODataResourceSet();
resourceSet.Count = values.Count;
Writer.WriteStart(resourceSet);
foreach (Object value in values)
{
int? dummy;
ODataResource entry = CreateEntry(entryFactory, entryFactory.GetValue(value, out dummy));
Writer.WriteStart(entry);
foreach (OeEntryFactory navigationLink in entryFactory.NavigationLinks)
{
WriteNavigationLink(value, navigationLink);
}
Writer.WriteEnd();
}
Writer.WriteEnd();
}
public static void WriteODataFeed(IEdmModel model, Stream stream)
{
// Create a ODataEntry
var entry = new ODataEntry()
{
Properties = new List <ODataProperty>()
{
new ODataProperty
{
Name = "ProductId", Value = 100
},
new ODataProperty
{
Name = "Name", Value = "The World"
},
new ODataProperty
{
Name = "SkinColor", Value = new ODataEnumValue("Green", DefaultNamespace + ".Color")
},
new ODataProperty
{
Name = "UserAccess", Value = new ODataEnumValue("ReadWrite, Execute", DefaultNamespace + ".AccessLevel")
}
}
};
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings();
writerSettings.ODataUri = new ODataUri()
{
ServiceRoot = ServiceRootUri
};
writerSettings.PayloadBaseUri = ServiceRootUri;
writerSettings.SetContentType("application/json;odata.metadata=full", Encoding.UTF8.WebName);
writerSettings.AutoComputePayloadMetadataInJson = true;
var responseMessage = new ODataResponseMessage(stream);
using (var messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
IEdmEntitySet entitySet = model.FindDeclaredEntitySet("Products");
ODataWriter feedWriter = messageWriter.CreateODataFeedWriter(entitySet);
var feed = new ODataFeed {
Id = new Uri(ServiceRootUri, "Products")
};
feedWriter.WriteStart(feed);
feedWriter.WriteStart(entry);
feedWriter.WriteEnd();
feedWriter.WriteEnd();
feedWriter.Flush();
}
}
private void WriteNavigationLinks(EntityInstanceContext context, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
foreach (IEdmNavigationProperty navProperty in _edmEntityTypeReference.NavigationProperties())
{
IEdmTypeReference propertyType = navProperty.Type;
object propertyValue = context.EntityInstance.GetType().GetProperty(navProperty.Name).GetValue(context.EntityInstance, index: null);
if (writeContext.EntitySet != null)
{
IEdmEntitySet currentEntitySet = writeContext.EntitySet.FindNavigationTarget(navProperty);
IEntitySetLinkBuilder linkBuilder = SerializerProvider.EdmModel.GetEntitySetLinkBuilder(writeContext.EntitySet);
ODataNavigationLink navigationLink = new ODataNavigationLink
{
IsCollection = propertyType.IsCollection(),
Name = navProperty.Name,
Url = linkBuilder.BuildNavigationLink(context, navProperty)
};
ODataQueryProjectionNode expandNode = null;
if (writeContext.CurrentProjectionNode != null)
{
expandNode = writeContext.CurrentProjectionNode.Expands.FirstOrDefault(p => p.Name == navProperty.Name);
}
if (expandNode != null && propertyValue != null)
{
writer.WriteStart(navigationLink);
ODataSerializer serializer = SerializerProvider.GetEdmTypeSerializer(propertyType);
if (serializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, navProperty.Type.FullName(), typeof(ODataMediaTypeFormatter).Name);
}
ODataSerializerWriteContext childWriteContext = new ODataSerializerWriteContext(writeContext.ResponseContext);
childWriteContext.UrlHelper = writeContext.UrlHelper;
childWriteContext.EntitySet = currentEntitySet;
childWriteContext.RootProjectionNode = writeContext.RootProjectionNode;
childWriteContext.CurrentProjectionNode = expandNode;
serializer.WriteObjectInline(propertyValue, writer, childWriteContext);
writer.WriteEnd();
}
else if (!writeContext.IsRequest)
{
// delayed links cannot be written on requests
writer.WriteStart(navigationLink);
writer.WriteEnd();
}
}
}
}
private void WriteNavigationProperty(ODataWriter writer, Object value, PropertyInfo navigationProperty)
{
Object navigationValue = navigationProperty.GetValue(value);
if (!_stack.Add(navigationValue))
{
return;
}
bool isCollection = OeExpressionHelper.GetCollectionItemType(navigationProperty.PropertyType) != null;
var resourceInfo = new ODataNestedResourceInfo()
{
IsCollection = isCollection,
Name = navigationProperty.Name
};
writer.WriteStart(resourceInfo);
if (navigationValue == null)
{
if (isCollection)
{
writer.WriteStart(new ODataResourceSet());
}
else
{
writer.WriteStart((ODataResource)null);
}
writer.WriteEnd();
}
else
{
var entityPropertiesInfo = default(EntityPropertiesInfo);
if (isCollection)
{
writer.WriteStart(new ODataResourceSet());
foreach (Object entity in (IEnumerable)navigationValue)
{
WriteEntry(writer, entity, ref entityPropertiesInfo);
}
writer.WriteEnd();
}
else
{
WriteEntry(writer, navigationValue, ref entityPropertiesInfo);
}
}
writer.WriteEnd();
_stack.Remove(navigationValue);
}
public async Task SerializeAsync(OeEntryFactory entryFactory, Db.OeAsyncEnumerator asyncEnumerator, OeQueryContext queryContext)
{
var resourceSet = new ODataResourceSet()
{
Count = asyncEnumerator.Count
};
_writer.WriteStart(resourceSet);
Object buffer = null;
int count = 0;
var dbEnumerator = entryFactory.IsTuple ?
(Db.IOeDbEnumerator) new Db.OeDbEnumerator(asyncEnumerator, entryFactory) : new Db.OeEntityDbEnumerator(asyncEnumerator, entryFactory);
while (await dbEnumerator.MoveNextAsync().ConfigureAwait(false))
{
Object value = dbEnumerator.Current;
await WriteEntry(dbEnumerator, value, _queryContext.NavigationNextLink).ConfigureAwait(false);
count++;
buffer = dbEnumerator.ClearBuffer();
}
if (queryContext.PageSize > 0 && count > 0 && (asyncEnumerator.Count ?? Int32.MaxValue) > count)
{
resourceSet.NextPageLink = BuildNextPageLink(queryContext, buffer);
}
_writer.WriteEnd();
}
/// <summary>
/// Writes a ReferenceLinks
/// </summary>
/// <param name="writer">The ODataWriter that will write the ReferenceLinks.</param>
public static void WriteReferenceLinks(ODataWriter writer, IEnumerable element, IEdmNavigationSource entitySource, ODataVersion targetVersion, ODataNavigationLink navigationLink)
{
IEnumerable <ODataEntry> links = ODataObjectModelConverter.ConvertToODataEntityReferenceLinks(element, entitySource, targetVersion);
var feed = new ODataFeed {
};
writer.WriteStart(feed);
foreach (var entry in links)
{
entry.InstanceAnnotations.Add(new ODataInstanceAnnotation("Link.AnnotationByFeed", new ODataPrimitiveValue(true)));
writer.WriteStart(entry);
writer.WriteEnd();
}
writer.WriteEnd();
}
/// <summary>
/// Serializes the open complex type as an <see cref="ODataUntypedValue"/>.
/// </summary>
/// <param name="graph"></param>
/// <param name="expectedType"></param>
/// <param name="writer"></param>
/// <param name="writeContext"></param>
public override void WriteObjectInline(
object graph,
IEdmTypeReference expectedType,
ODataWriter writer,
ODataSerializerContext writeContext)
{
// This cast is safe because the type is checked before using this serializer.
var mongoData = (MongoData)graph;
var properties = new List <ODataProperty>();
foreach (var item in mongoData.Document)
{
properties.Add(new ODataProperty
{
Name = item.Key,
Value = new ODataUntypedValue
{
RawValue = JsonConvert.SerializeObject(item.Value),
},
});
}
writer.WriteStart(new ODataResource
{
TypeName = expectedType.FullName(),
Properties = properties,
});
writer.WriteEnd();
}
private async Task SerializeAsync(ODataWriter writer)
{
var resourceSet = new ODataResourceSet()
{
Count = Count
};
writer.WriteStart(resourceSet);
int count = 0;
T entity = default;
EntityPropertiesInfo entityPropertiesInfo = default;
while (await _entities.MoveNext())
{
entity = _entities.Current;
_stack.Add(entity);
WriteEntry(writer, entity, ref entityPropertiesInfo);
_stack.Remove(entity);
count++;
}
if (PageSize > 0 && count > 0 && (Count ?? Int32.MaxValue) > count)
{
resourceSet.NextPageLink = BuildNextPageLink(OeSkipTokenParser.GetSkipToken(_edmModel, GetKeys(entity)));
}
writer.WriteEnd();
}
public void WritingEdmPrimitiveProppertyWithNotAllowedTypeWorksWithoutDerivedTypeConstraintButFailedWithDerivedTypeConstraint()
{
// Add a <Property Name="Data" Type="Edm.PrimitiveType" />
var locationProperty = this.edmCustomerType.AddStructuralProperty("Data", EdmCoreModel.Instance.GetPrimitiveType(false));
ODataResource customer = new ODataResource
{
TypeName = "NS.Customer",
Properties = new[] { new ODataProperty {
Name = "Id", Value = 7
}, new ODataProperty {
Name = "Data", Value = 8.9
} }
};
Action <ODataMessageWriter> writeAction = (messageWriter) =>
{
ODataWriter writer = messageWriter.CreateODataResourceWriter(this.edmCustomers, this.edmCustomerType); // entityset
writer.WriteStart(customer);
writer.WriteEnd();
};
// EdmPrimitive property doesn't have the derived type constraint.
string actual = GetWriterOutput(this.edmModel, writeAction);
Assert.Contains("#Customers/$entity\",\"Id\":7,\"[email protected]\":\"#Double\",\"Data\":8.9}", actual);
// Negative test case --EdmPrimitive property has the derived type constraint.
SetDerivedTypeAnnotation(this.edmModel, locationProperty, "Edm.Boolean", "Edm.Int32");
Action test = () => GetWriterOutput(this.edmModel, writeAction);
var exception = Assert.Throws <ODataException>(test);
Assert.Equal(Strings.WriterValidationUtils_ValueTypeNotAllowedInDerivedTypeConstraint("Edm.Double", "property", "Data"), exception.Message);
}
private void WriteEntity(Stream stream, OeEntityItem entityItem)
{
var settings = new ODataMessageWriterSettings()
{
BaseUri = _baseUri,
Version = ODataVersion.V4,
ODataUri = new ODataUri()
{
ServiceRoot = _baseUri
},
EnableMessageStreamDisposal = false
};
IODataResponseMessage responseMessage = new OeInMemoryMessage(stream, null);
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, settings, _model))
{
ODataUtils.SetHeadersForPayload(messageWriter, ODataPayloadKind.Resource);
ODataWriter writer = messageWriter.CreateODataResourceWriter(entityItem.EntitySet, entityItem.EntityType);
entityItem.RefreshEntry();
writer.WriteStart(entityItem.Entry);
writer.WriteEnd();
}
}
/// <summary>
/// Writes an OData entry.
/// </summary>
/// <param name="writer">The ODataWriter that will write the entry.</param>
/// <param name="element">The item from the data store to write.</param>
/// <param name="navigationSource">The navigation source in the model that the entry belongs to.</param>
/// <param name="model">The data store model.</param>
/// <param name="targetVersion">The OData version this segment is targeting.</param>
/// <param name="selectExpandClause">The SelectExpandClause.</param>
public static void WriteEntry(ODataWriter writer, object element, IEdmNavigationSource entitySource, ODataVersion targetVersion, SelectExpandClause selectExpandClause, Dictionary <string, string> incomingHeaders = null)
{
var entry = ODataObjectModelConverter.ConvertToODataEntry(element, entitySource, targetVersion);
entry.ETag = Utility.GetETagValue(element);
if (selectExpandClause != null && selectExpandClause.SelectedItems.OfType <PathSelectItem>().Any())
{
ExpandSelectItemHandler selectItemHandler = new ExpandSelectItemHandler(entry);
foreach (var item in selectExpandClause.SelectedItems.OfType <PathSelectItem>())
{
item.HandleWith(selectItemHandler);
}
entry = selectItemHandler.ProjectedEntry;
}
CustomizeEntry(incomingHeaders, entry);
writer.WriteStart(entry);
// gets all of the expandedItems, including ExpandedRefernceSelectItem and ExpandedNavigationItem
var expandedItems = selectExpandClause == null ? null : selectExpandClause.SelectedItems.OfType <ExpandedReferenceSelectItem>();
WriteNavigationLinks(writer, element, entry.ReadLink, entitySource, targetVersion, expandedItems);
writer.WriteEnd();
}
private string WriteAndVerifyCarEntry(StreamResponseMessage responseMessage, ODataWriter odataWriter,
bool hasModel, string mimeType)
{
var carEntry = WritePayloadHelper.CreateCarEntry(hasModel);
odataWriter.WriteStart(carEntry);
// Finish writing the entry.
odataWriter.WriteEnd();
// Some very basic verification for the payload.
bool verifyEntryCalled = false;
Action <ODataEntry> verifyEntry = (entry) =>
{
Assert.AreEqual(4, entry.Properties.Count(), "entry.Properties.Count");
Assert.IsNotNull(entry.MediaResource, "entry.MediaResource");
Assert.IsTrue(entry.EditLink.AbsoluteUri.Contains("Car(11)"), "entry.EditLink");
Assert.IsTrue(entry.ReadLink == null || entry.ReadLink.AbsoluteUri.Contains("Car(11)"), "entry.ReadLink");
Assert.AreEqual(1, entry.InstanceAnnotations.Count, "entry.InstanceAnnotations.Count");
verifyEntryCalled = true;
};
Stream stream = responseMessage.GetStream();
if (!mimeType.Contains(MimeTypes.ODataParameterNoMetadata))
{
stream.Seek(0, SeekOrigin.Begin);
WritePayloadHelper.ReadAndVerifyFeedEntryMessage(false, responseMessage, WritePayloadHelper.CarSet, WritePayloadHelper.CarType, null, verifyEntry,
null);
Assert.IsTrue(verifyEntryCalled, "Verification action not called.");
}
return(WritePayloadHelper.ReadStreamContent(stream));
}
public override void WriteObjectInline(
object graph,
IEdmTypeReference expectedType,
ODataWriter writer,
ODataSerializerContext writeContext)
{
// This cast is safe because the type is checked before using this serializer.
var dictionary = (IDictionary <string, object>)graph;
var properties = new List <ODataProperty>();
foreach (var(key, value) in dictionary)
{
properties.Add(new ODataProperty
{
Name = key,
Value = new ODataUntypedValue
{
RawValue = JsonConvert.SerializeObject(value),
},
});
}
writer.WriteStart(new ODataResource
{
TypeName = "Edm.Untyped",
Properties = properties,
});
writer.WriteEnd();
}
private async Task SerializeAsync(ODataWriter writer, OeMetadataLevel metadataLevel)
{
ClrPropertiesInfo clrPropertiesInfo = GetClrPropertiesInfo(_edmModel, _odataUri.SelectAndExpand, metadataLevel, typeof(T), null);
var resourceSet = new ODataResourceSet()
{
Count = Count
};
writer.WriteStart(resourceSet);
int count = 0;
T entity = default;
while (await _entities.MoveNext())
{
entity = _entities.Current;
_stack.Add(entity);
WriteEntry(writer, entity, clrPropertiesInfo);
_stack.Remove(entity);
count++;
}
if (PageSize > 0 && count > 0 && (Count ?? Int32.MaxValue) > count)
{
resourceSet.NextPageLink = BuildNextPageLink(OeSkipTokenParser.GetSkipToken(_edmModel, GetKeys(entity)));
}
writer.WriteEnd();
}
private string GetWriterOutputForContentTypeAndKnobValue(ODataEntry entry, EdmModel model, IEdmEntitySetBase entitySet, EdmEntityType entityType)
{
MemoryStream outputStream = new MemoryStream();
IODataResponseMessage message = new InMemoryMessage()
{
Stream = outputStream
};
message.SetHeader("Content-Type", "application/json;odata.metadata=full");
ODataMessageWriterSettings settings = new ODataMessageWriterSettings()
{
AutoComputePayloadMetadataInJson = true,
};
settings.SetServiceDocumentUri(new Uri("http://example.com"));
string output;
using (var messageWriter = new ODataMessageWriter(message, settings, model))
{
ODataWriter writer = messageWriter.CreateODataEntryWriter(entitySet, entityType);
writer.WriteStart(entry);
writer.WriteEnd();
outputStream.Seek(0, SeekOrigin.Begin);
output = new StreamReader(outputStream).ReadToEnd();
}
return(output);
}
internal void WriteNavigationLink(EntityDescriptor entityDescriptor, IEnumerable <LinkDescriptor> relatedLinks, ODataWriter odataWriter)
{
ClientTypeAnnotation clientTypeAnnotation = null;
foreach (LinkDescriptor descriptor in relatedLinks)
{
descriptor.ContentGeneratedForSave = true;
if (clientTypeAnnotation == null)
{
ClientEdmModel model = ClientEdmModel.GetModel(this.requestInfo.MaxProtocolVersion);
clientTypeAnnotation = model.GetClientTypeAnnotation(model.GetOrCreateEdmType(entityDescriptor.Entity.GetType()));
}
ODataNavigationLink navigationLink = new ODataNavigationLink {
Url = this.requestInfo.EntityTracker.GetEntityDescriptor(descriptor.Target).GetLatestEditLink(),
IsCollection = new bool?(clientTypeAnnotation.GetProperty(descriptor.SourceProperty, false).IsEntityCollection),
Name = descriptor.SourceProperty
};
odataWriter.WriteStart(navigationLink);
ODataEntityReferenceLink entityReferenceLink = new ODataEntityReferenceLink {
Url = navigationLink.Url
};
odataWriter.WriteEntityReferenceLink(entityReferenceLink);
odataWriter.WriteEnd();
}
}
private void WriteNavigationLink(ODataWriter writer, ODataNestedResourceInfo link)
{
writer.WriteStart(link);
var expanded = link.GetAnnotation <ODataNavigationLinkExpandedItemObjectModelAnnotation>();
if (expanded != null)
{
var feed = expanded.ExpandedItem as ODataResourceSet;
if (feed != null)
{
this.WriteFeed(writer, feed);
}
else
{
ODataResource entry = expanded.ExpandedItem as ODataResource;
if (entry != null || expanded.ExpandedItem == null)
{
this.WriteEntry(writer, entry);
}
else
{
ExceptionUtilities.Assert(expanded.ExpandedItem is ODataEntityReferenceLink, "Content of a nav. link can only be a feed, entry or entity reference link.");
writer.WriteEntityReferenceLink((ODataEntityReferenceLink)expanded.ExpandedItem);
}
}
}
writer.WriteEnd();
}
/// <summary>
/// Writes the given deltaDeletedEntry specified by the parameter graph as a part of an existing OData message using the given
/// messageWriter and the writeContext.
/// </summary>
/// <param name="graph">The object to be written.</param>
/// <param name="writer">The <see cref="ODataDeltaWriter" /> to be used for writing.</param>
/// <param name="writeContext">The <see cref="ODataSerializerContext"/>.</param>
public virtual void WriteDeltaDeletedEntry(object graph, ODataWriter writer, ODataSerializerContext writeContext)
{
EdmDeltaDeletedEntityObject edmDeltaDeletedEntity = graph as EdmDeltaDeletedEntityObject;
if (edmDeltaDeletedEntity == null)
{
throw new SerializationException(Error.Format(SRResources.CannotWriteType, GetType().Name, graph.GetType().FullName));
}
Uri id = StringToUri(edmDeltaDeletedEntity.Id);
ODataDeletedResource deletedResource = new ODataDeletedResource(id, edmDeltaDeletedEntity.Reason);
if (edmDeltaDeletedEntity.NavigationSource != null)
{
ODataResourceSerializationInfo serializationInfo = new ODataResourceSerializationInfo
{
NavigationSourceName = edmDeltaDeletedEntity.NavigationSource.Name
};
deletedResource.SetSerializationInfo(serializationInfo);
}
if (deletedResource != null)
{
writer.WriteStart(deletedResource);
writer.WriteEnd();
}
}
private void WriteEntry(ODataWriter writer, ODataItem[] itemsToWrite, ref int currentIdx)
{
if (currentIdx < itemsToWrite.Length)
{
ODataEntry entry = (ODataEntry)itemsToWrite[currentIdx++];
writer.WriteStart(entry);
while (currentIdx < itemsToWrite.Length)
{
if (itemsToWrite[currentIdx] is ODataNavigationLink)
{
this.WriteLink(writer, itemsToWrite, ref currentIdx);
}
else if (itemsToWrite[currentIdx] is ODataNavigationLinkEnd)
{
currentIdx++;
writer.WriteEnd();
return;
}
else
{
break;
}
}
writer.WriteEnd();
}
}
private void WriteLink(ODataWriter writer, ODataItem[] itemsToWrite, ref int currentIdx)
{
if (currentIdx < itemsToWrite.Length)
{
ODataNavigationLink link = (ODataNavigationLink)itemsToWrite[currentIdx++];
writer.WriteStart(link);
if (currentIdx < itemsToWrite.Length)
{
if (itemsToWrite[currentIdx] is ODataEntry)
{
this.WriteEntry(writer, itemsToWrite, ref currentIdx);
}
else if (itemsToWrite[currentIdx] is ODataFeed)
{
this.WriteFeed(writer, itemsToWrite, ref currentIdx);
}
}
writer.WriteEnd();
}
}
private void WriteFeed(ODataWriter writer, ODataItem[] itemsToWrite, ref int currentIdx)
{
if (currentIdx < itemsToWrite.Length)
{
ODataFeed feed = (ODataFeed)itemsToWrite[currentIdx++];
writer.WriteStart(feed);
while (currentIdx < itemsToWrite.Length && itemsToWrite[currentIdx] is ODataEntry)
{
this.WriteEntry(writer, itemsToWrite, ref currentIdx);
}
writer.WriteEnd();
}
}
