/// <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, ODataDeltaWriter writer, ODataSerializerContext writeContext)
{
EdmDeltaDeletedEntityObject edmDeltaDeletedEntity = graph as EdmDeltaDeletedEntityObject;
if (edmDeltaDeletedEntity == null)
{
throw new SerializationException(Error.Format(SRResources.CannotWriteType, GetType().Name, graph.GetType().FullName));
}
ODataDeltaDeletedEntry deltaDeletedEntry = new ODataDeltaDeletedEntry(
edmDeltaDeletedEntity.Id, edmDeltaDeletedEntity.Reason);
if (deltaDeletedEntry != null)
{
writer.WriteDeltaDeletedEntry(deltaDeletedEntry);
}
}
/// <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>
/// Writes the reason annotation for a delta deleted entry.
/// </summary>
/// <param name="entry">The entry to write the reason for.</param>
private void WriteDeltaEntryReason(ODataDeltaDeletedEntry entry)
{
Debug.Assert(entry != null, "entry != null");
if (!entry.Reason.HasValue)
{
return;
}
this.jsonWriter.WriteName(JsonLightConstants.ODataReasonPropertyName);
switch (entry.Reason.Value)
{
case DeltaDeletedEntryReason.Deleted:
this.jsonWriter.WriteValue(JsonLightConstants.ODataReasonDeletedValue);
break;
case DeltaDeletedEntryReason.Changed:
this.jsonWriter.WriteValue(JsonLightConstants.ODataReasonChangedValue);
break;
default:
Debug.Assert(false, "Unknown reason.");
break;
}
}
/// <summary>
/// Writes the odata.id annotation for a delta deleted entry.
/// </summary>
/// <param name="entry">The entry to write the id for.</param>
private void WriteDeltaEntryId(ODataDeltaDeletedEntry entry)
{
Debug.Assert(entry != null, "entry != null");
this.jsonWriter.WriteName(JsonLightConstants.ODataIdPropertyName);
this.jsonWriter.WriteValue(entry.Id);
}
/// <summary>
/// Start writing a delta deleted entry - implementation of the actual functionality.
/// </summary>
/// <param name="entry">Entry/item to write.</param>
private void WriteStartDeltaEntryImplementation(ODataDeltaDeletedEntry entry)
{
Debug.Assert(entry != null, "entry != null");
this.StartPayloadInStartState();
this.EnterScope(WriterState.DeltaDeletedEntry, entry);
this.InterceptException(() => this.StartDeltaDeletedEntry(entry));
}
/// <summary>
/// Asynchronously writing a delta deleted entry.
/// </summary>
/// <param name="deltaDeletedEntry">The delta deleted entry to write.</param>
/// <returns>A task instance that represents the asynchronous write operation.</returns>
public override Task WriteDeltaDeletedEntryAsync(ODataDeltaDeletedEntry deltaDeletedEntry)
{
this.VerifyCanWriteEntry(false, deltaDeletedEntry);
return TaskUtils.GetTaskForSynchronousOperation(() =>
{
this.WriteStartDeltaEntryImplementation(deltaDeletedEntry);
this.WriteEnd();
});
}
/// <summary>
/// Writing a delta deleted entry.
/// </summary>
/// <param name="deltaDeletedEntry">The delta deleted entry to write.</param>
public override void WriteDeltaDeletedEntry(ODataDeltaDeletedEntry deltaDeletedEntry)
{
this.VerifyCanWriteEntry(true, deltaDeletedEntry);
this.WriteStartDeltaEntryImplementation(deltaDeletedEntry);
this.WriteEnd();
}
/// <summary>
/// Start writing a delta deleted entry.
/// </summary>
/// <param name="entry">The entry to write.</param>
private void StartDeltaDeletedEntry(ODataDeltaDeletedEntry entry)
{
Debug.Assert(entry != null, "entry != null");
Debug.Assert(!this.IsTopLevel, "Delta entry cannot be on top level.");
this.jsonWriter.StartObjectScope();
this.WriteDeltaEntryContextUri(ODataDeltaKind.DeletedEntry);
this.WriteDeltaEntryId(entry);
this.WriteDeltaEntryReason(entry);
}
/// <summary>
/// Asynchronously writing a delta deleted resource.
/// </summary>
/// <param name="deltaDeletedEntry">The delta deleted resource to write.</param>
/// <returns>A task instance that represents the asynchronous write operation.</returns>
public override Task WriteDeltaDeletedEntryAsync(ODataDeltaDeletedEntry deltaDeletedEntry)
{
return(TaskUtils.GetTaskForSynchronousOperation(() => this.resourceWriter.WriteStart(ODataDeltaDeletedEntry.GetDeletedResource(deltaDeletedEntry))));
}
/// <summary>
/// Writing a delta deleted resource.
/// </summary>
/// <param name="deltaDeletedEntry">The delta deleted resource to write.</param>
public override void WriteDeltaDeletedEntry(ODataDeltaDeletedEntry deltaDeletedEntry)
{
this.resourceWriter.WriteStart(ODataDeltaDeletedEntry.GetDeletedResource(deltaDeletedEntry));
this.resourceWriter.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?$expand=Orders");
using (var messageWriter = this.CreateMessageWriter(responseMessage))
{
var entitySet = this.DataSource.Model.FindDeclaredEntitySet("Customers");
var entityType = entitySet.EntityType();
ODataDeltaWriter deltaWriter = messageWriter.CreateODataDeltaWriter(entitySet, entityType);
var deltaFeed = new ODataDeltaFeed();
var deltaEntry = new ODataEntry
{
Id = new Uri(ServiceConstants.ServiceBaseUri, entitySet.Name + "(1)"),
Properties = new[] { new ODataProperty {
Name = "FirstName", Value = "GGGG"
} }
};
var deletedLink = new ODataDeltaDeletedLink(
new Uri(ServiceConstants.ServiceBaseUri, entitySet.Name + "(1)"), new Uri(ServiceConstants.ServiceBaseUri, "Orders(8)"), "Orders");
var addedLink = new ODataDeltaLink(
new Uri(ServiceConstants.ServiceBaseUri, entitySet.Name + "(1)"), new Uri(ServiceConstants.ServiceBaseUri, "Orders(7)"), "Orders");
var navigationEntry = new ODataEntry
{
Id = new Uri(ServiceConstants.ServiceBaseUri, "Orders(100)"),
TypeName = "Microsoft.Test.OData.Services.ODataWCFService.Order",
Properties = new[]
{
new ODataProperty {
Name = "OrderID", Value = 100
},
new ODataProperty {
Name = "OrderDate", Value = new DateTimeOffset(DateTime.Now)
}
}
};
navigationEntry.SetSerializationInfo(new ODataFeedAndEntrySerializationInfo
{
NavigationSourceEntityTypeName = "Microsoft.Test.OData.Services.ODataWCFService.Order",
NavigationSourceKind = EdmNavigationSourceKind.EntitySet,
NavigationSourceName = "Orders"
});
var deletedEntry = new ODataDeltaDeletedEntry(
new Uri(ServiceConstants.ServiceBaseUri, entitySet.Name + "(2)").AbsoluteUri, DeltaDeletedEntryReason.Deleted);
deltaFeed.DeltaLink = new Uri(ServiceConstants.ServiceBaseUri, "$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>
/// Provide additional serialization information to the <see cref="ODataDeltaWriter"/> for <paramref name="deltaDeletedEntry"/>.
/// </summary>
/// <param name="deltaDeletedEntry">The instance to set the serialization info.</param>
/// <param name="serializationInfo">The serialization info to set.</param>
public static void SetSerializationInfo(this ODataDeltaDeletedEntry deltaDeletedEntry, ODataDeltaSerializationInfo serializationInfo)
{
ExceptionUtils.CheckArgumentNotNull(deltaDeletedEntry, "deltaDeletedEntry");
deltaDeletedEntry.SerializationInfo = serializationInfo;
}
/// <summary>
/// Asynchronously writing a delta deleted resource.
/// </summary>
/// <param name="deltaDeletedEntry">The delta deleted resource to write.</param>
/// <returns>A task instance that represents the asynchronous write operation.</returns>
public override Task WriteDeltaDeletedEntryAsync(ODataDeltaDeletedEntry deltaDeletedEntry)
{
return(this.resourceWriter.WriteStartAsync(ODataDeltaDeletedEntry.GetDeletedResource(deltaDeletedEntry)));
}
