public void Init()
{
this.context = new DataServiceContext(new Uri("http://temp.org/"), ODataProtocolVersion.V4);
this.responseInfo = new ResponseInfo(new RequestInfo(this.context), MergeOption.NoTracking);
this.readingHelper = new ODataMessageReadingHelper(this.responseInfo);
this.atomResponseMessage = new ODataResponseMessageSimulator();
this.atomResponseMessage.SetHeader(XmlConstants.HttpContentType, "ApplIcAtIOn/AtOm");
this.jsonResponseMessage = new ODataResponseMessageSimulator();
this.jsonResponseMessage.SetHeader(XmlConstants.HttpContentType, "ApplIcAtIOn/jsOn");
}
internal static MaterializeAtom Materialize(
ResponseInfo responseInfo,
QueryComponents queryComponents,
ProjectionPlan plan,
string contentType,
IODataResponseMessage message,
ODataPayloadKind expectedPayloadKind)
{
Debug.Assert(null != queryComponents, "querycomponents");
Debug.Assert(null != message, "message");
// If there is no content (For e.g. /Customers(1)/BestFriend is null), we need to return empty results.
if (message.StatusCode == (int)HttpStatusCode.NoContent || String.IsNullOrEmpty(contentType))
{
return(MaterializeAtom.EmptyResults);
}
return(new MaterializeAtom(responseInfo, queryComponents, plan, message, expectedPayloadKind));
}
/// <summary>cleanup work to do once the request has completed</summary>
protected override void CompletedRequest()
{
byte[] buffer = this.asyncStreamCopyBuffer;
this.asyncStreamCopyBuffer = null;
if ((null != buffer) && !this.usingBuffer)
{
this.PutAsyncResponseStreamCopyBuffer(buffer);
}
if (this.responseStreamOwner)
{
if (null != this.outputResponseStream)
{
this.outputResponseStream.Position = 0;
}
}
Debug.Assert(null != this.responseMessage || null != this.Failure || this.IsAborted, "should have response or exception");
if (null != this.responseMessage)
{
// we've cached off what we need, headers still accessible after close
WebUtil.DisposeMessage(this.responseMessage);
Version responseVersion;
Exception ex = SaveResult.HandleResponse(
this.RequestInfo,
this.StatusCode,
this.responseMessage.GetHeader(XmlConstants.HttpODataVersion),
this.GetResponseStream,
false,
out responseVersion);
if (null != ex)
{
this.HandleFailure(ex);
}
else
{
this.responseInfo = this.CreateResponseInfo();
}
}
}
#pragma warning restore 649
#endif
#endregion Private fields
/// <summary>
/// constructor
/// </summary>
/// <param name="responseInfo">originating context</param>
/// <param name="queryComponents">Query components (projection, expected type)</param>
/// <param name="plan">Projection plan (if compiled in an earlier query).</param>
/// <param name="responseMessage">responseMessage</param>
/// <param name="payloadKind">The kind of the payload to materialize.</param>
internal MaterializeAtom(
ResponseInfo responseInfo,
QueryComponents queryComponents,
ProjectionPlan plan,
IODataResponseMessage responseMessage,
ODataPayloadKind payloadKind)
{
Debug.Assert(queryComponents != null, "queryComponents != null");
this.responseInfo = responseInfo;
this.elementType = queryComponents.LastSegmentType;
this.expectingPrimitiveValue = PrimitiveType.IsKnownNullableType(elementType);
Debug.Assert(responseMessage != null, "Response message is null! Did you mean to use Materializer.ResultsWrapper/EmptyResults?");
Type implementationType;
Type materializerType = GetTypeForMaterializer(this.expectingPrimitiveValue, this.elementType, responseInfo.Model, out implementationType);
this.materializer = ODataMaterializer.CreateMaterializerForMessage(responseMessage, responseInfo, materializerType, queryComponents, plan, payloadKind);
}
private void MaterializeTest(HttpStatusCode statusCode, ODataPayloadKind payloadKind)
{
var uri = new Uri("http://any");
var context = new DataServiceContext();
var requestInfo = new RequestInfo(context);
var responseInfo = new ResponseInfo(requestInfo, MergeOption.OverwriteChanges);
var queryComponents = new QueryComponents(uri, new Version(4, 0), typeof(Product), null, null);
var responseMessage = new HttpWebResponseMessage(
new HeaderCollection(),
(int)statusCode,
() => new MemoryStream());
var materialize = DataServiceRequest.Materialize(
responseInfo,
queryComponents,
null,
"application/json",
responseMessage,
payloadKind);
Assert.IsNull(materialize.Context);
Assert.IsNull(materialize.Current);
var enumerable = materialize.Cast<object>();
Assert.AreEqual(0, enumerable.Count());
}
/// <summary>
/// Get the materializer to process the response.
/// </summary>
/// <param name="entityDescriptor">entity descriptor whose response is getting materialized.</param>
/// <param name="responseInfo">information about the response to be materialized.</param>
/// <returns>an instance of MaterializeAtom, that can be used to materialize the response.</returns>
/// <remarks>
/// This can only be called from inside the HandleBatchResponse or during enumeration of the responses.
/// This is used when processing responses for update operations.
/// </remarks>
protected override MaterializeAtom GetMaterializer(EntityDescriptor entityDescriptor, ResponseInfo responseInfo)
{
// check if the batch stream is empty or not
Debug.Assert(this.currentOperationResponse != null, "There must be an active operation response for this method to work correctly.");
Debug.Assert(!this.currentOperationResponse.HasEmptyContent, "We should not get here if the response is empty.");
// Since this is used for processing responses to update operations there are no projections to apply.
QueryComponents queryComponents = new QueryComponents(
/*uri*/ null,
Util.ODataVersionEmpty,
entityDescriptor.Entity.GetType(),
/*projection*/ null,
/*normalizerRewrites*/ null);
return(new MaterializeAtom(
responseInfo,
queryComponents,
/*projectionPlan*/ null,
this.currentOperationResponse.CreateResponseMessage(),
ODataPayloadKind.Resource));
}
/// <summary>
/// process the batch response
/// </summary>
/// <param name="batchReader">The batch reader to use for reading the batch response.</param>
/// <returns>enumerable of QueryResponse or null</returns>
/// <remarks>
/// The batch message reader for the entire batch response is stored in this.batchMessageReader.
/// Note that this method takes over the ownership of this reader and must Dispose it if it successfully returns.
/// </remarks>
private IEnumerable <OperationResponse> HandleBatchResponse(ODataBatchReader batchReader)
{
try
{
if (this.batchMessageReader == null)
{
// The enumerable returned by this method can be enumerated multiple times.
// In that case it looks like if the method is called multiple times.
// This didn't fail in previous versions, it simply returned no results, so we need to do the same.
yield break;
}
Debug.Assert(batchReader != null, "batchReader != null");
bool changesetFound = false;
bool insideChangeset = false;
int queryCount = 0;
int operationCount = 0;
this.entryIndex = 0;
while (batchReader.Read())
{
switch (batchReader.State)
{
#region ChangesetStart
case ODataBatchReaderState.ChangesetStart:
if ((Util.IsBatchWithSingleChangeset(this.Options) && changesetFound) || (operationCount != 0))
{
// Throw if we encounter multiple changesets when running in batch with single changeset mode
// or if we encounter operations outside of a changeset.
Error.ThrowBatchUnexpectedContent(InternalError.UnexpectedBeginChangeSet);
}
insideChangeset = true;
break;
#endregion
#region ChangesetEnd
case ODataBatchReaderState.ChangesetEnd:
changesetFound = true;
operationCount = 0;
insideChangeset = false;
break;
#endregion
#region Operation
case ODataBatchReaderState.Operation:
Exception exception = this.ProcessCurrentOperationResponse(batchReader, insideChangeset);
if (!insideChangeset)
{
#region Get response
Debug.Assert(operationCount == 0, "missing an EndChangeSet 2");
QueryOperationResponse qresponse = null;
try
{
if (exception == null)
{
DataServiceRequest query = this.Queries[queryCount];
ResponseInfo responseInfo = this.RequestInfo.GetDeserializationInfo(null /*mergeOption*/);
MaterializeAtom materializer = DataServiceRequest.Materialize(
responseInfo,
query.QueryComponents(this.RequestInfo.Model),
null,
this.currentOperationResponse.Headers.GetHeader(XmlConstants.HttpContentType),
this.currentOperationResponse.CreateResponseMessage(),
query.PayloadKind);
qresponse = QueryOperationResponse.GetInstance(query.ElementType, this.currentOperationResponse.Headers, query, materializer);
}
}
catch (ArgumentException e)
{
exception = e;
}
catch (FormatException e)
{
exception = e;
}
catch (InvalidOperationException e)
{
exception = e;
}
if (qresponse == null)
{
if (this.Queries != null)
{
// this is the normal ExecuteBatch response
DataServiceRequest query = this.Queries[queryCount];
if (this.RequestInfo.IgnoreResourceNotFoundException && this.currentOperationResponse.StatusCode == HttpStatusCode.NotFound)
{
qresponse = QueryOperationResponse.GetInstance(query.ElementType, this.currentOperationResponse.Headers, query, MaterializeAtom.EmptyResults);
}
else
{
qresponse = QueryOperationResponse.GetInstance(query.ElementType, this.currentOperationResponse.Headers, query, MaterializeAtom.EmptyResults);
qresponse.Error = exception;
}
}
else
{
// This is top-level failure for SaveChanges(SaveChangesOptions.BatchWithSingleChangeset) or SaveChanges(SaveChangesOptions.BatchWithIndependentOperations) operations.
// example: server doesn't support batching or number of batch objects exceeded an allowed limit.
// ex could be null if the server responded to SaveChanges with an unexpected success with
// response of batched GETS that did not correspond the original POST/PATCH/PUT/DELETE requests.
// we expect non-null since server should have failed with a non-success code
// and HandleResponse(status, ...) should generate the exception object
throw exception;
}
}
qresponse.StatusCode = (int)this.currentOperationResponse.StatusCode;
queryCount++;
yield return(qresponse);
#endregion
}
else
{
#region Update response
try
{
Descriptor descriptor = this.ChangedEntries[this.entryIndex];
operationCount += this.SaveResultProcessed(descriptor);
if (exception != null)
{
throw exception;
}
this.HandleOperationResponseHeaders(this.currentOperationResponse.StatusCode, this.currentOperationResponse.Headers);
#if DEBUG
this.HandleOperationResponse(descriptor, this.currentOperationResponse.Headers, this.currentOperationResponse.StatusCode);
#else
this.HandleOperationResponse(descriptor, this.currentOperationResponse.Headers);
#endif
}
catch (Exception e)
{
this.ChangedEntries[this.entryIndex].SaveError = e;
exception = e;
if (!CommonUtil.IsCatchableExceptionType(e))
{
throw;
}
}
ChangeOperationResponse changeOperationResponse =
new ChangeOperationResponse(this.currentOperationResponse.Headers, this.ChangedEntries[this.entryIndex]);
changeOperationResponse.StatusCode = (int)this.currentOperationResponse.StatusCode;
if (exception != null)
{
changeOperationResponse.Error = exception;
}
operationCount++;
this.entryIndex++;
yield return(changeOperationResponse);
#endregion
}
break;
#endregion
default:
Error.ThrowBatchExpectedResponse(InternalError.UnexpectedBatchState);
break;
}
}
Debug.Assert(batchReader.State == ODataBatchReaderState.Completed, "unexpected batch state");
// Check for a changeset without response (first line) or GET request without response (second line).
// either all saved entries must be processed or it was a batch and one of the entries has the error
if ((this.Queries == null &&
(!changesetFound ||
0 < queryCount ||
this.ChangedEntries.Any(o => o.ContentGeneratedForSave && o.SaveResultWasProcessed == 0) &&
(!this.IsBatchRequest || this.ChangedEntries.FirstOrDefault(o => o.SaveError != null) == null))) ||
(this.Queries != null && queryCount != this.Queries.Length))
{
throw Error.InvalidOperation(Strings.Batch_IncompleteResponseCount);
}
}
finally
{
// Note that this will be called only once the enumeration of all responses is finished and the Dispose
// was called on the IEnumerator used for that enumeration. It is not called when the method returns,
// since the compiler change this method to return the compiler-generated IEnumerable.
Util.Dispose(ref this.batchMessageReader);
}
}
/// <summary>
/// This method is for parsing CUD operation payloads which should contain
/// 1 a single entry
/// 2 An Error
/// </summary>
/// <param name="message">the message for the payload</param>
/// <param name="responseInfo">The current ResponseInfo object</param>
/// <param name="expectedType">The expected type</param>
/// <returns>the MaterializerEntry that was read</returns>
internal static MaterializerEntry ParseSingleEntityPayload(IODataResponseMessage message, ResponseInfo responseInfo, Type expectedType)
{
ODataPayloadKind messageType = ODataPayloadKind.Entry;
using (ODataMessageReader messageReader = CreateODataMessageReader(message, responseInfo, ref messageType))
{
IEdmType edmType = responseInfo.TypeResolver.ResolveExpectedTypeForReading(expectedType);
ODataReaderWrapper reader = ODataReaderWrapper.Create(messageReader, messageType, edmType, responseInfo.ResponsePipeline);
FeedAndEntryMaterializerAdapter parser = new FeedAndEntryMaterializerAdapter(messageReader, reader, responseInfo.Model, responseInfo.MergeOption);
ODataEntry entry = null;
bool readFeed = false;
while (parser.Read())
{
readFeed |= parser.CurrentFeed != null;
if (parser.CurrentEntry != null)
{
if (entry != null)
{
throw new InvalidOperationException(DSClient.Strings.AtomParser_SingleEntry_MultipleFound);
}
entry = parser.CurrentEntry;
}
}
if (entry == null)
{
if (readFeed)
{
throw new InvalidOperationException(DSClient.Strings.AtomParser_SingleEntry_NoneFound);
}
else
{
throw new InvalidOperationException(DSClient.Strings.AtomParser_SingleEntry_ExpectedFeedOrEntry);
}
}
return MaterializerEntry.GetEntry(entry);
}
}
protected static ODataMessageReader CreateODataMessageReader(IODataResponseMessage responseMessage, ResponseInfo responseInfo, ref ODataPayloadKind payloadKind)
{
ODataMessageReaderSettings settings = responseInfo.ReadHelper.CreateSettings();
ODataMessageReader odataMessageReader = responseInfo.ReadHelper.CreateReader(responseMessage, settings);
if (payloadKind == ODataPayloadKind.Unsupported)
{
var payloadKinds = odataMessageReader.DetectPayloadKind().ToList();
if (payloadKinds.Count == 0)
{
throw DSClient.Error.InvalidOperation(DSClient.Strings.AtomMaterializer_InvalidResponsePayload(XmlConstants.DataWebNamespace));
}
// Pick the first payload kind detected by ODataLib and use that to parse the exception.
// The only exception being payload with entity reference link(s). If one of the payload kinds
// is reference links, then we need to give preference to reference link payloads.
ODataPayloadKindDetectionResult detectionResult = payloadKinds.FirstOrDefault(k => k.PayloadKind == ODataPayloadKind.EntityReferenceLink || k.PayloadKind == ODataPayloadKind.EntityReferenceLinks);
if (detectionResult == null)
{
detectionResult = payloadKinds.First();
}
// Astoria client only supports atom, jsonlight and raw value payloads.
#pragma warning disable 618
if (detectionResult.Format != ODataFormat.Atom && detectionResult.Format != ODataFormat.Json && detectionResult.Format != ODataFormat.RawValue)
#pragma warning restore 618
{
throw DSClient.Error.InvalidOperation(DSClient.Strings.AtomMaterializer_InvalidContentTypeEncountered(responseMessage.GetHeader(XmlConstants.HttpContentType)));
}
payloadKind = detectionResult.PayloadKind;
}
return odataMessageReader;
}
/// <summary>
/// Initializes a new instance of the <see cref="ODataMessageReadingHelper"/> class.
/// </summary>
/// <param name="responseInfo">The response info.</param>
internal ODataMessageReadingHelper(ResponseInfo responseInfo)
{
Debug.Assert(responseInfo != null, "responseInfo != null");
this.responseInfo = responseInfo;
}
/// <summary>
/// Get the materializer to process the response.
/// </summary>
/// <param name="entityDescriptor">entity descriptor whose response is getting materialized.</param>
/// <param name="responseInfo">information about the response to be materialized.</param>
/// <returns>an instance of MaterializeAtom, that can be used to materialize the response.</returns>
protected override MaterializeAtom GetMaterializer(EntityDescriptor entityDescriptor, ResponseInfo responseInfo)
{
Debug.Assert(this.cachedResponse.Exception == null && this.cachedResponse.MaterializerEntry != null, "this.cachedResponse.Exception == null && this.cachedResponse.Entry != null");
ODataResource entry = this.cachedResponse.MaterializerEntry == null ? null : this.cachedResponse.MaterializerEntry.Entry;
return(new MaterializeAtom(responseInfo, new[] { entry }, entityDescriptor.Entity.GetType(), this.cachedResponse.MaterializerEntry.Format));
}
/// <summary>
/// Get the materializer to process the response.
/// </summary>
/// <param name="entityDescriptor">entity descriptor whose response is getting materialized.</param>
/// <param name="responseInfo">information about the response to be materialized.</param>
/// <returns>an instance of MaterializeAtom, that can be used to materialize the response.</returns>
/// <remarks>
/// This can only be called from inside the HandleBatchResponse or during enumeration of the responses.
/// This is used when processing responses for update operations.
/// </remarks>
protected override MaterializeAtom GetMaterializer(EntityDescriptor entityDescriptor, ResponseInfo responseInfo)
{
// check if the batch stream is empty or not
Debug.Assert(this.currentOperationResponse != null, "There must be an active operation response for this method to work correctly.");
Debug.Assert(!this.currentOperationResponse.HasEmptyContent, "We should not get here if the response is empty.");
// Since this is used for processing responses to update operations there are no projections to apply.
QueryComponents queryComponents = new QueryComponents(
/*uri*/ null,
Util.ODataVersionEmpty,
entityDescriptor.Entity.GetType(),
/*projection*/ null,
/*normalizerRewrites*/ null);
return new MaterializeAtom(
responseInfo,
queryComponents,
/*projectionPlan*/ null,
this.currentOperationResponse.CreateResponseMessage(),
ODataPayloadKind.Entry);
}
/// <summary>
/// Initializes a new instance of the <see cref="ODataMessageReadingHelper"/> class.
/// </summary>
/// <param name="responseInfo">The response info.</param>
internal ODataMessageReadingHelper(ResponseInfo responseInfo)
{
Debug.Assert(responseInfo != null, "responseInfo != null");
this.responseInfo = responseInfo;
}
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.Entry || payloadKind == ODataPayloadKind.Feed)
{
// 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 != EdmTypeKind.Entity)
{
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)
{
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> /// Get the materializer to process the response. /// </summary> /// <param name="entityDescriptor">entity descriptor whose response is getting materialized.</param> /// <param name="responseInfo">information about the response to be materialized.</param> /// <returns>an instance of MaterializeAtom, that can be used to materialize the response.</returns> protected abstract MaterializeAtom GetMaterializer(EntityDescriptor entityDescriptor, ResponseInfo responseInfo);
/// <summary>
/// Materialize the response payload.
/// </summary>
/// <param name="entityDescriptor">entity descriptor whose response is getting materialized.</param>
/// <param name="responseInfo">information about the response to be materialized.</param>
/// <param name="etag">etag value, if specified in the response header.</param>
private void MaterializeResponse(EntityDescriptor entityDescriptor, ResponseInfo responseInfo, string etag)
{
using (MaterializeAtom materializer = this.GetMaterializer(entityDescriptor, responseInfo))
{
materializer.SetInsertingObject(entityDescriptor.Entity);
object materializedEntity = null;
foreach (object x in materializer)
{
Debug.Assert(materializedEntity == null, "entity == null");
if (materializedEntity != null)
{
Error.ThrowInternalError(InternalError.MaterializerReturningMoreThanOneEntity);
}
materializedEntity = x;
}
Debug.Assert(null != entityDescriptor.GetLatestIdentity(), "updated inserted should always gain an identity");
Debug.Assert(materializedEntity == entityDescriptor.Entity, "x == entityDescriptor.Entity, should have same object generated by response");
Debug.Assert(EntityStates.Unchanged == entityDescriptor.State, "should have moved out of insert");
Debug.Assert(this.RequestInfo.EntityTracker.TryGetEntityDescriptor(entityDescriptor.GetLatestIdentity()) != null, "should have identity tracked");
// If there was no etag specified in the payload, then we need to set the etag from the header
if (entityDescriptor.GetLatestETag() == null)
{
entityDescriptor.ETag = etag;
}
}
}
/// <summary>
/// Get the materializer to process the response.
/// </summary>
/// <param name="entityDescriptor">entity descriptor whose response is getting materialized.</param>
/// <param name="responseInfo">information about the response to be materialized.</param>
/// <returns>an instance of MaterializeAtom, that can be used to materialize the response.</returns>
protected override MaterializeAtom GetMaterializer(EntityDescriptor entityDescriptor, ResponseInfo responseInfo)
{
Debug.Assert(this.cachedResponse.Exception == null && this.cachedResponse.MaterializerEntry != null, "this.cachedResponse.Exception == null && this.cachedResponse.Entry != null");
ODataEntry entry = this.cachedResponse.MaterializerEntry == null ? null : this.cachedResponse.MaterializerEntry.Entry;
return new MaterializeAtom(responseInfo, new[] { entry }, entityDescriptor.Entity.GetType(), this.cachedResponse.MaterializerEntry.Format);
}
/// <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
}
}