/// <summary>
/// Writes the given deltaDeletedLink 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 async Task WriteDeltaDeletedLinkAsync(object graph, ODataWriter writer, ODataSerializerContext writeContext)
{
if (writer == null)
{
throw Error.ArgumentNull(nameof(writer));
}
EdmDeltaDeletedLink edmDeltaDeletedLink = graph as EdmDeltaDeletedLink;
if (edmDeltaDeletedLink == null)
{
throw new SerializationException(
Error.Format(SRResources.CannotWriteType, GetType().Name, graph?.GetType().FullName));
}
ODataDeltaDeletedLink deltaDeletedLink = new ODataDeltaDeletedLink(
edmDeltaDeletedLink.Source,
edmDeltaDeletedLink.Target,
edmDeltaDeletedLink.Relationship);
if (deltaDeletedLink != null)
{
await writer.WriteDeltaDeletedLinkAsync(deltaDeletedLink).ConfigureAwait(false);
}
}
/// <summary>
/// Writes the given deltaDeletedLink 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 WriteDeltaDeletedLink(object graph, ODataWriter writer, ODataSerializerContext writeContext)
{
ODataDeltaDeletedLink deltaDeletedLink = GetDeletedLink(graph);
if (deltaDeletedLink != null)
{
writer.WriteDeltaDeletedLink(deltaDeletedLink);
}
}
/// <summary>
/// Writes the given deltaDeletedLink 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 async Task WriteDeltaDeletedLinkAsync(object graph, ODataWriter writer, ODataSerializerContext writeContext)
{
ODataDeltaDeletedLink deltaDeletedLink = GetDeletedLink(graph);
if (deltaDeletedLink != null)
{
await writer.WriteDeltaDeletedLinkAsync(deltaDeletedLink);
}
}
public void ReadDeltaDeletedLink_Returns_DeletedDeltaLink(bool typed)
{
// Arrange
Mock <IODataDeserializerProvider> deserializerProvider = new Mock <IODataDeserializerProvider>();
ODataDeltaResourceSetDeserializer deserializer = new ODataDeltaResourceSetDeserializer(deserializerProvider.Object);
Uri source = new Uri("Customers(8)", UriKind.RelativeOrAbsolute);
Uri target = new Uri("Orders(10645)", UriKind.RelativeOrAbsolute);
ODataDeltaDeletedLink deletedLink = new ODataDeltaDeletedLink(source, target, "Orders");
ODataDeltaDeletedLinkWrapper wrapper = new ODataDeltaDeletedLinkWrapper(deletedLink);
IEdmModel model = GetEdmModel();
IEdmEntityType customer = model.SchemaElements.OfType <IEdmEntityType>().First(c => c.Name == "Customer");
IEdmStructuredTypeReference elementType = new EdmEntityTypeReference(customer, true);
ODataDeserializerContext context = new ODataDeserializerContext
{
Model = model,
ResourceType = typeof(DeltaSet <>)
};
if (typed)
{
context.ResourceType = typeof(DeltaSet <>);
}
else
{
context.ResourceType = typeof(EdmChangedObjectCollection);
}
// Act
object deltaLinkObject = deserializer.ReadDeltaDeletedLink(wrapper, elementType, context);
// Assert
if (typed)
{
DeltaDeletedLink <Customer> deltaDeletedLink = Assert.IsType <DeltaDeletedLink <Customer> >(deltaLinkObject);
Assert.Equal(source, deltaDeletedLink.Source);
Assert.Equal(target, deltaDeletedLink.Target);
Assert.Equal("Orders", deltaDeletedLink.Relationship);
}
else
{
EdmDeltaDeletedLink deltaDeletedLink = Assert.IsType <EdmDeltaDeletedLink>(deltaLinkObject);
Assert.Equal(source, deltaDeletedLink.Source);
Assert.Equal(target, deltaDeletedLink.Target);
Assert.Equal("Orders", deltaDeletedLink.Relationship);
}
}
private ODataDeltaDeletedLink GetDeletedLink(object graph)
{
EdmDeltaDeletedLink edmDeltaDeletedLink = graph as EdmDeltaDeletedLink;
if (edmDeltaDeletedLink == null)
{
throw new SerializationException(Error.Format(SRResources.CannotWriteType, GetType().Name, graph.GetType().FullName));
}
ODataDeltaDeletedLink deltaDeletedLink = new ODataDeltaDeletedLink(
edmDeltaDeletedLink.Source,
edmDeltaDeletedLink.Target,
edmDeltaDeletedLink.Relationship);
return(deltaDeletedLink);
}
/// <summary>
/// Writes the given deltaDeletedLink 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 WriteDeltaDeletedLink(object graph, ODataDeltaWriter writer, ODataSerializerContext writeContext)
{
EdmDeltaDeletedLink edmDeltaDeletedLink = graph as EdmDeltaDeletedLink;
if (edmDeltaDeletedLink == null)
{
throw new SerializationException(Error.Format(SRResources.CannotWriteType, GetType().Name, graph.GetType().FullName));
}
ODataDeltaDeletedLink deltaDeletedLink = new ODataDeltaDeletedLink(
edmDeltaDeletedLink.Source,
edmDeltaDeletedLink.Target,
edmDeltaDeletedLink.Relationship);
if (deltaDeletedLink != null)
{
writer.WriteDeltaDeletedLink(deltaDeletedLink);
}
}
/// <summary>
/// Generate deleted entry and deleted link items
/// </summary>
/// <param name="parentId">Parent Id</param>
/// <param name="relationShip">Navigation property name</param>
private void GenerateDeltaItemsFromDeletedEntities(string parentId, string relationShip)
{
foreach (DeltaSnapshotEntry entry in this.DeltaSnapshot.Entries)
{
// Get all top level entities which do not contained in new results
if (entry.ParentId == parentId && entry.RelationShip == relationShip)
{
// Verify if the entry is deleted now, since some of them may dispare because $filter
var verifyresult = new QueryContext(this.ServiceRootUri, new Uri(entry.Id), this.DataSource.Model, this.RequestContainer);
object queryResults = verifyresult.ResolveQuery(this.DataSource);
if (queryResults == null)
{
var deletedEntry = new ODataDeltaDeletedEntry(entry.Id, DeltaDeletedEntryReason.Deleted);
deletedEntry.SetSerializationInfo(new ODataDeltaSerializationInfo
{
NavigationSourceName = (verifyresult.QueryPath.LastSegment as KeySegment).NavigationSource.Name,
});
this.DeltaItems.Add(deletedEntry);
if (!string.IsNullOrEmpty(parentId))
{
var deltaDeletedLink = new ODataDeltaDeletedLink(new Uri(parentId), new Uri(entry.Id), relationShip);
deltaDeletedLink.SetSerializationInfo(new ODataDeltaSerializationInfo
{
NavigationSourceName = (verifyresult.QueryPath.LastSegment as KeySegment).NavigationSource.Name,
});
this.DeltaItems.Add(deltaDeletedLink);
}
}
else
{
var deletedEntry = new ODataDeltaDeletedEntry(entry.Id, DeltaDeletedEntryReason.Changed);
deletedEntry.SetSerializationInfo(new ODataDeltaSerializationInfo
{
NavigationSourceName = (verifyresult.QueryPath.LastSegment as KeySegment).NavigationSource.Name,
});
this.DeltaItems.Add(deletedEntry);
}
}
}
}
/// <summary>
/// Asynchronously writing a delta deleted link.
/// </summary>
/// <param name="deltaDeletedLink">The delta deleted link to write.</param>
/// <returns>A task instance that represents the asynchronous write operation.</returns>
public override Task WriteDeltaDeletedLinkAsync(ODataDeltaDeletedLink deltaDeletedLink)
{
this.VerifyCanWriteLink(false, deltaDeletedLink);
return TaskUtils.GetTaskForSynchronousOperation(() =>
{
this.WriteStartDeltaLinkImplementation(deltaDeletedLink);
this.WriteEnd();
});
}
/// <summary>
/// Writing a delta deleted link.
/// </summary>
/// <param name="deltaDeletedLink">The delta deleted link to write.</param>
public override void WriteDeltaDeletedLink(ODataDeltaDeletedLink deltaDeletedLink)
{
this.VerifyCanWriteLink(true, deltaDeletedLink);
this.WriteStartDeltaLinkImplementation(deltaDeletedLink);
this.WriteEnd();
}
/// <summary>
/// Initializes a new instance of <see cref="ODataDeltaDeletedLinkWrapper"/>.
/// </summary>
/// <param name="deltaDeletedLink">The wrapped deleted link.</param>
public ODataDeltaDeletedLinkWrapper(ODataDeltaDeletedLink deltaDeletedLink)
{
DeltaDeletedLink = deltaDeletedLink;
}
/// <summary>
/// Read OData item.
/// </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 ReadODataItem(ODataReader reader, Stack <ODataItemWrapper> itemsStack, ref ODataItemWrapper topLevelItem)
{
Contract.Assert(reader != null);
Contract.Assert(itemsStack != null);
switch (reader.State)
{
case ODataReaderState.ResourceStart:
ReadResource(reader, itemsStack, ref topLevelItem);
break;
case ODataReaderState.DeletedResourceStart:
ReadDeletedResource(reader, itemsStack);
break;
case ODataReaderState.ResourceEnd:
Contract.Assert(itemsStack.Count > 0, "The resource which is ending should be on the top of the items stack.");
ODataResourceWrapper resourceWrapper = itemsStack.Peek() as ODataResourceWrapper;
if (resourceWrapper != null)
{
// Resource could be null
Contract.Assert(resourceWrapper.Resource == reader.Item, "The resource should be the same item in the reader.");
}
itemsStack.Pop();
break;
case ODataReaderState.DeletedResourceEnd:
Contract.Assert(itemsStack.Count > 0, "The deleted resource which is ending should be on the top of the items stack.");
ODataResourceWrapper deletedResourceWrapper = itemsStack.Peek() as ODataResourceWrapper;
Contract.Assert(deletedResourceWrapper != null, "The top object in the stack should be delete resource wrapper.");
Contract.Assert(deletedResourceWrapper.Resource == reader.Item, "The deleted resource should be the same item in the reader.");
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, "The nested resource info which is ending should be on the top of the items stack.");
ODataNestedResourceInfoWrapper nestedInfoWrapper = itemsStack.Peek() as ODataNestedResourceInfoWrapper;
Contract.Assert(nestedInfoWrapper != null, "The top object in the stack should be nested resource info wrapper.");
Contract.Assert(nestedInfoWrapper.NestedResourceInfo == reader.Item, "The nested resource info should be the same item in the reader.");
itemsStack.Pop();
break;
case ODataReaderState.ResourceSetStart: // resource set
ReadResourceSet(reader, itemsStack, ref topLevelItem);
break;
case ODataReaderState.DeltaResourceSetStart: // delta resource set
ReadDeltaResourceSet(reader, itemsStack, ref topLevelItem);
break;
case ODataReaderState.ResourceSetEnd:
Contract.Assert(itemsStack.Count > 0, "The resource set which is ending should be on the top of the items stack.");
ODataResourceSetWrapper resourceSetWrapper = itemsStack.Peek() as ODataResourceSetWrapper;
Contract.Assert(resourceSetWrapper != null, "The top object in the stack should be resource set wrapper.");
Contract.Assert(resourceSetWrapper.ResourceSet == reader.Item, "The resource set should be the same item in the reader.");
itemsStack.Pop();
break;
case ODataReaderState.DeltaResourceSetEnd:
Contract.Assert(itemsStack.Count > 0, "The delta resource set which is ending should be on the top of the items stack.");
ODataDeltaResourceSetWrapper deltaResourceSetWrapper = itemsStack.Peek() as ODataDeltaResourceSetWrapper;
Contract.Assert(deltaResourceSetWrapper != null, "The top object in the stack should be delta resource set wrapper.");
Contract.Assert(deltaResourceSetWrapper.DeltaResourceSet == reader.Item, "The delta resource set should be the same item in the reader.");
itemsStack.Pop();
break;
case ODataReaderState.EntityReferenceLink:
ODataEntityReferenceLink entityReferenceLink = (ODataEntityReferenceLink)reader.Item;
Contract.Assert(entityReferenceLink != null, "Entity reference link should never be null.");
ODataEntityReferenceLinkWrapper entityReferenceLinkWrapper = new ODataEntityReferenceLinkWrapper(entityReferenceLink);
Contract.Assert(itemsStack.Count > 0, "Entity reference link should never be reported as top-level item.");
{
ODataNestedResourceInfoWrapper parentNestedResource = (ODataNestedResourceInfoWrapper)itemsStack.Peek();
parentNestedResource.NestedItems.Add(entityReferenceLinkWrapper);
}
break;
case ODataReaderState.DeltaLink: // added link
case ODataReaderState.DeltaDeletedLink: // deleted link
ODataDeltaLinkBaseWrapper linkBaseWrapper;
if (ODataReaderState.DeltaLink == reader.State)
{
ODataDeltaLink deltaLink = (ODataDeltaLink)reader.Item;
Contract.Assert(deltaLink != null, "Delta link should never be null.");
linkBaseWrapper = new ODataDeltaLinkWrapper(deltaLink);
}
else
{
ODataDeltaDeletedLink deltaDeletedLink = (ODataDeltaDeletedLink)reader.Item;
Contract.Assert(deltaDeletedLink != null, "Delta deleted link should never be null.");
linkBaseWrapper = new ODataDeltaDeletedLinkWrapper(deltaDeletedLink);
}
Contract.Assert(itemsStack.Count > 0, "Delta link should never be reported as top-level item.");
// Should never add a delta link to a non-delta resource set.
ODataDeltaResourceSetWrapper linkResourceSetWrapper = (ODataDeltaResourceSetWrapper)itemsStack.Peek();
Contract.Assert(linkResourceSetWrapper != null, "ODataDeltaResourceSetWrapper for delta link should not be null.");
linkResourceSetWrapper.DeltaItems.Add(linkBaseWrapper);
break;
default:
Contract.Assert(false, "We should never get here, it means the ODataReader reported a wrong state.");
break;
}
}
/// <summary>
/// Asynchronously writing a delta deleted link.
/// </summary>
/// <param name="deltaDeletedLink">The delta deleted link to write.</param>
/// <returns>A task instance that represents the asynchronous write operation.</returns>
public override Task WriteDeltaDeletedLinkAsync(ODataDeltaDeletedLink deltaDeletedLink)
{
return(TaskUtils.GetTaskForSynchronousOperation(() => this.resourceWriter.WriteDeltaDeletedLink(deltaDeletedLink)));
}
/// <summary>
/// Writing a delta deleted link.
/// </summary>
/// <param name="deltaDeletedLink">The delta deleted link to write.</param>
public override void WriteDeltaDeletedLink(ODataDeltaDeletedLink deltaDeletedLink)
{
this.resourceWriter.WriteDeltaDeletedLink(deltaDeletedLink);
}
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",
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 ODataFeedAndEntrySerializationInfo
{
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 ODataDeltaFeed();
var deltaEntry = new ODataEntry
{
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 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"
});
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 == "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 ODataDeltaFeed();
var deltaEntry1 = new ODataEntry
{
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 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 deletedOrderEntry = new ODataDeltaDeletedEntry(
new Uri(ServiceConstants.ServiceBaseUri, "Orders(20)").AbsoluteUri, DeltaDeletedEntryReason.Deleted);
deletedOrderEntry.SetSerializationInfo(new ODataDeltaSerializationInfo()
{
NavigationSourceName = "Orders"
});
var deltaEntry2 = new ODataEntry
{
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();
}
}
}
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();
}
}
}
/// <summary>
/// Verifies that calling WriteStart delta deleted link is valid.
/// </summary>
/// <param name="synchronousCall">true if the call is to be synchronous; false otherwise.</param>
/// <param name="deltaDeletedLink">Delta deleted link to write.</param>
private void VerifyCanWriteLink(bool synchronousCall, ODataDeltaDeletedLink deltaDeletedLink)
{
this.VerifyNotDisposed();
this.VerifyCallAllowed(synchronousCall);
ExceptionUtils.CheckArgumentNotNull(deltaDeletedLink, "delta deleted link");
}
/// <summary>
/// Start writing a delta deleted link - implementation of the actual functionality.
/// </summary>
/// <param name="deltaDeletedLink">Delta deleted link to write.</param>
private void WriteStartDeltaLinkImplementation(ODataDeltaDeletedLink deltaDeletedLink)
{
this.EnterScope(WriterState.DeltaDeletedLink, deltaDeletedLink);
this.StartDeltaLink(deltaDeletedLink);
}
/// <summary>
/// Asynchronously writing a delta deleted link.
/// </summary>
/// <param name="deltaDeletedLink">The delta deleted link to write.</param>
/// <returns>A task instance that represents the asynchronous write operation.</returns>
public override Task WriteDeltaDeletedLinkAsync(ODataDeltaDeletedLink deltaDeletedLink)
{
return(this.resourceWriter.WriteDeltaDeletedLinkAsync(deltaDeletedLink));
}
