private void HandleOperationResponseData(HttpWebResponse response, Stream responseStream)
{
Version version;
Func <Stream> getResponseStream = null;
Dictionary <string, string> headers = WebUtil.WrapResponseHeaders(response);
Descriptor descriptor = base.ChangedEntries[base.entryIndex];
MaterializerEntry entry = null;
Exception exception = BaseSaveResult.HandleResponse(base.RequestInfo, response.StatusCode, response.Headers["DataServiceVersion"], () => responseStream, false, out version);
if (((responseStream != null) && (descriptor.DescriptorKind == DescriptorKind.Entity)) && (exception == null))
{
EntityDescriptor entityDescriptor = (EntityDescriptor)descriptor;
if (((entityDescriptor.State == EntityStates.Added) || (entityDescriptor.StreamState == EntityStates.Added)) || ((entityDescriptor.State == EntityStates.Modified) || (entityDescriptor.StreamState == EntityStates.Modified)))
{
try
{
ResponseInfo responseInfo = base.CreateResponseInfo(entityDescriptor);
if (getResponseStream == null)
{
getResponseStream = () => responseStream;
}
HttpWebResponseMessage message = new HttpWebResponseMessage(response, getResponseStream);
entry = ODataReaderEntityMaterializer.ParseSingleEntityPayload(message, responseInfo, entityDescriptor.Entity.GetType());
entityDescriptor.TransientEntityDescriptor = entry.EntityDescriptor;
}
catch (Exception exception2)
{
exception = exception2;
if (!CommonUtil.IsCatchableExceptionType(exception2))
{
throw;
}
}
}
}
this.cachedResponses.Add(new CachedResponse(descriptor, headers, response.StatusCode, version, (entry != null) ? entry.Entry : null, exception));
if (exception != null)
{
descriptor.SaveError = exception;
}
}
/// <summary>
/// Creates an <see cref="ODataMaterializer"/> for a response.
/// </summary>
/// <param name="responseMessage">The response message.</param>
/// <param name="responseInfo">The response context.</param>
/// <param name="materializerType">The type to materialize.</param>
/// <param name="queryComponents">The query components for the request.</param>
/// <param name="plan">The projection plan.</param>
/// <param name="payloadKind">expected payload kind.</param>
/// <returns>A materializer specialized for the given response.</returns>
public static ODataMaterializer CreateMaterializerForMessage(
IODataResponseMessage responseMessage,
ResponseInfo responseInfo,
Type materializerType,
QueryComponents queryComponents,
ProjectionPlan plan,
ODataPayloadKind payloadKind)
{
ODataMessageReader messageReader = CreateODataMessageReader(responseMessage, responseInfo, ref payloadKind);
ODataMaterializer result;
IEdmType edmType = null;
try
{
ODataMaterializerContext materializerContext = new ODataMaterializerContext(responseInfo);
// Since in V1/V2, astoria client allowed Execute<object> and depended on the typeresolver or the wire type name
// to get the clr type to materialize. Hence if we see the materializer type as object, we should set the edmtype
// to null, since there is no expected type.
if (materializerType != typeof(System.Object))
{
edmType = responseInfo.TypeResolver.ResolveExpectedTypeForReading(materializerType);
}
if (payloadKind == ODataPayloadKind.Property && edmType != null)
{
if (edmType.TypeKind.IsStructured())
{
payloadKind = ODataPayloadKind.Resource;
}
else if (edmType.TypeKind == EdmTypeKind.Collection && (edmType as IEdmCollectionType).ElementType.IsStructured())
{
payloadKind = ODataPayloadKind.ResourceSet;
}
}
if (payloadKind == ODataPayloadKind.Resource || payloadKind == ODataPayloadKind.ResourceSet)
{
// In V1/V2, we allowed System.Object type to be allowed to pass to ExecuteQuery.
// Hence we need to explicitly check for System.Object to allow this
if (edmType != null && !edmType.TypeKind.IsStructured())
{
throw DSClient.Error.InvalidOperation(DSClient.Strings.AtomMaterializer_InvalidNonEntityType(materializerType.FullName));
}
ODataReaderWrapper reader = ODataReaderWrapper.Create(messageReader, payloadKind, edmType, responseInfo.ResponsePipeline);
EntityTrackingAdapter entityTrackingAdapter = new EntityTrackingAdapter(responseInfo.EntityTracker, responseInfo.MergeOption, responseInfo.Model, responseInfo.Context);
LoadPropertyResponseInfo loadPropertyResponseInfo = responseInfo as LoadPropertyResponseInfo;
if (loadPropertyResponseInfo != null)
{
result = new ODataLoadNavigationPropertyMaterializer(
messageReader,
reader,
materializerContext,
entityTrackingAdapter,
queryComponents,
materializerType,
plan,
loadPropertyResponseInfo);
}
else
{
result = new ODataReaderEntityMaterializer(
messageReader,
reader,
materializerContext,
entityTrackingAdapter,
queryComponents,
materializerType,
plan);
}
}
else
{
switch (payloadKind)
{
case ODataPayloadKind.Value:
result = new ODataValueMaterializer(messageReader, materializerContext, materializerType, queryComponents.SingleResult);
break;
case ODataPayloadKind.Collection:
result = new ODataCollectionMaterializer(messageReader, materializerContext, materializerType, queryComponents.SingleResult);
break;
case ODataPayloadKind.Property:
case ODataPayloadKind.IndividualProperty:
// Top level properties cannot be of entity type.
if (edmType != null && (edmType.TypeKind == EdmTypeKind.Entity || edmType.TypeKind == EdmTypeKind.Complex))
{
throw DSClient.Error.InvalidOperation(DSClient.Strings.AtomMaterializer_InvalidEntityType(materializerType.FullName));
}
result = new ODataPropertyMaterializer(messageReader, materializerContext, materializerType, queryComponents.SingleResult);
break;
case ODataPayloadKind.EntityReferenceLinks:
case ODataPayloadKind.EntityReferenceLink:
result = new ODataLinksMaterializer(messageReader, materializerContext, materializerType, queryComponents.SingleResult);
break;
case ODataPayloadKind.Error:
var odataError = messageReader.ReadError();
throw new ODataErrorException(odataError.Message, odataError);
default:
throw DSClient.Error.InvalidOperation(DSClient.Strings.AtomMaterializer_InvalidResponsePayload(XmlConstants.DataWebNamespace));
}
}
return(result);
}
catch (Exception ex)
{
if (CommonUtil.IsCatchableExceptionType(ex))
{
// Dispose the message reader in all error scenarios.
messageReader.Dispose();
}
throw;
}
}
/// <summary>
/// Handle the response payload.
/// </summary>
/// <param name="responseMsg">httpwebresponse instance.</param>
/// <param name="responseStream">stream containing the response payload.</param>
private void HandleOperationResponseData(IODataResponseMessage responseMsg, Stream responseStream)
{
Debug.Assert(this.entryIndex >= 0 && this.entryIndex < this.ChangedEntries.Count, string.Format(System.Globalization.CultureInfo.InvariantCulture, "this.entryIndex = '{0}', this.ChangedEntries.Count() = '{1}'", this.entryIndex, this.ChangedEntries.Count));
// Parse the response
Descriptor current = this.ChangedEntries[this.entryIndex];
MaterializerEntry entry = default(MaterializerEntry);
Version responseVersion;
Exception exception = BaseSaveResult.HandleResponse(this.RequestInfo, (HttpStatusCode)responseMsg.StatusCode, responseMsg.GetHeader(XmlConstants.HttpODataVersion), () => { return(responseStream); }, false /*throwOnFailure*/, out responseVersion);
var headers = new HeaderCollection(responseMsg);
if (responseStream != null && current.DescriptorKind == DescriptorKind.Entity && exception == null)
{
// Only process the response if the current resource is an entity and it's an insert or update scenario
EntityDescriptor entityDescriptor = (EntityDescriptor)current;
// We were ignoring the payload for non-insert and non-update scenarios. We need to keep doing that.
if (entityDescriptor.State == EntityStates.Added || entityDescriptor.StreamState == EntityStates.Added ||
entityDescriptor.State == EntityStates.Modified || entityDescriptor.StreamState == EntityStates.Modified)
{
try
{
ResponseInfo responseInfo = this.CreateResponseInfo(entityDescriptor);
var responseMessageWrapper = new HttpWebResponseMessage(
headers,
responseMsg.StatusCode,
() => responseStream);
entry = ODataReaderEntityMaterializer.ParseSingleEntityPayload(responseMessageWrapper, responseInfo, entityDescriptor.Entity.GetType());
entityDescriptor.TransientEntityDescriptor = entry.EntityDescriptor;
}
catch (Exception ex)
{
exception = ex;
if (!CommonUtil.IsCatchableExceptionType(ex))
{
throw;
}
}
}
}
this.cachedResponses.Add(new CachedResponse(
current,
headers,
(HttpStatusCode)responseMsg.StatusCode,
responseVersion,
entry,
exception));
if (exception != null)
{
current.SaveError = exception;
// DEVNOTE(pqian):
// There are two possible scenario here:
// 1. We are in the sync code path, and there's an in stream error on the server side, or there are bad xml thrown
// 2. We are in the async code path, there's a error thrown on the server side (any error)
// Ideally, we need to check whether we want to continue to the next changeset. (Call this.CheckContinueOnError)
// However, in V1/V2, we did not do this. Thus we will always continue on error on these scenarios
}
}
