private async Task <ODataResponse> ReadResponse(ODataBatchReader odataReader)
{
var batch = new List <ODataResponse>();
while (odataReader.Read())
{
switch (odataReader.State)
{
case ODataBatchReaderState.ChangesetStart:
break;
case ODataBatchReaderState.Operation:
var operationMessage = odataReader.CreateOperationResponseMessage();
if (operationMessage.StatusCode == (int)HttpStatusCode.NoContent)
{
batch.Add(ODataResponse.FromStatusCode(operationMessage.StatusCode));
}
else if (operationMessage.StatusCode >= (int)HttpStatusCode.BadRequest)
{
batch.Add(ODataResponse.FromStatusCode(
operationMessage.StatusCode,
#if SILVERLIGHT
operationMessage.GetStream()));
}
#else
await operationMessage.GetStreamAsync().ConfigureAwait(false)));
#endif
else
{
batch.Add(await GetResponseAsync(operationMessage).ConfigureAwait(false));
}
break;
public static async Task <IList <HttpRequestMessage> > ReadChangeSetRequestAsync(this ODataBatchReader reader, Guid batchId, CancellationToken cancellationToken)
{
if (reader == null)
{
throw Error.ArgumentNull("reader");
}
if (reader.State != ODataBatchReaderState.ChangesetStart)
{
throw Error.InvalidOperation(
SRResources.InvalidBatchReaderState,
reader.State.ToString(),
ODataBatchReaderState.ChangesetStart.ToString());
}
Guid changeSetId = Guid.NewGuid();
List <HttpRequestMessage> requests = new List <HttpRequestMessage>();
while (reader.Read() && reader.State != ODataBatchReaderState.ChangesetEnd)
{
if (reader.State == ODataBatchReaderState.Operation)
{
requests.Add(await ReadOperationInternalAsync(reader, batchId, changeSetId, cancellationToken));
}
}
return(requests);
}
private async Task <ODataResponse> ReadResponse(ODataBatchReader odataReader)
{
var batch = new List <ODataResponse>();
while (odataReader.Read())
{
switch (odataReader.State)
{
case ODataBatchReaderState.ChangesetStart:
break;
case ODataBatchReaderState.Operation:
var operationMessage = odataReader.CreateOperationResponseMessage();
if (operationMessage.StatusCode == (int)HttpStatusCode.NoContent)
{
batch.Add(ODataResponse.FromStatusCode(operationMessage.StatusCode));
}
else
{
batch.Add(await GetResponseAsync(operationMessage));
}
break;
case ODataBatchReaderState.ChangesetEnd:
break;
}
}
return(ODataResponse.FromBatch(batch));
}
private bool ReadBatch(string requestPayload, ODataVersion version)
{
IODataRequestMessage requestMessage = new InMemoryMessage()
{
Stream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(requestPayload))
};
requestMessage.SetHeader("Content-Type", batchContentTypeMultipartMime);
ODataMessageReaderSettings settings = new ODataMessageReaderSettings {
Version = version
};
using (ODataMessageReader messageReader = new ODataMessageReader(requestMessage, settings, this.userModel))
{
ODataBatchReader batchReader = messageReader.CreateODataBatchReader();
while (batchReader.Read())
{
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
// Encountered an operation (either top-level or in a change set)
ODataBatchOperationRequestMessage operationMessage =
batchReader.CreateOperationRequestMessage();
break;
}
}
}
return(true);
}
/// <inheritdoc/>
public override async Task <HttpResponseMessage> ProcessBatchAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
if (request == null)
{
throw Error.ArgumentNull("request");
}
ValidateRequest(request);
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings
{
DisableMessageStreamDisposal = true,
MessageQuotas = MessageQuotas,
BaseUri = GetBaseUri(request)
};
cancellationToken.ThrowIfCancellationRequested();
ODataMessageReader reader = await request.Content.GetODataMessageReaderAsync(oDataReaderSettings);
request.RegisterForDispose(reader);
ODataBatchReader batchReader = reader.CreateODataBatchReader();
List <ODataBatchResponseItem> responses = new List <ODataBatchResponseItem>();
Guid batchId = Guid.NewGuid();
List <IDisposable> resourcesToDispose = new List <IDisposable>();
try
{
while (batchReader.Read())
{
ODataBatchResponseItem responseItem = null;
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
responseItem = await ExecuteChangeSetAsync(batchReader, batchId, request, cancellationToken);
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
responseItem = await ExecuteOperationAsync(batchReader, batchId, request, cancellationToken);
}
if (responseItem != null)
{
responses.Add(responseItem);
}
}
}
catch
{
foreach (ODataBatchResponseItem response in responses)
{
if (response != null)
{
response.Dispose();
}
}
throw;
}
return(await CreateResponseMessageAsync(responses, request, cancellationToken));
}
/// <inheritdoc/>
public override async Task ProcessBatchAsync(HttpContext context, RequestDelegate nextHandler)
{
if (context == null)
{
throw Error.ArgumentNull("context");
}
if (nextHandler == null)
{
throw Error.ArgumentNull("nextHandler");
}
if (!await ValidateRequest(context.Request))
{
return;
}
// This container is for the overall batch request.
HttpRequest request = context.Request;
IServiceProvider requestContainer = request.CreateRequestContainer(ODataRouteName);
requestContainer.GetRequiredService <ODataMessageReaderSettings>().BaseUri = GetBaseUri(request);
ODataMessageReader reader = request.GetODataMessageReader(requestContainer);
ODataBatchReader batchReader = reader.CreateODataBatchReader();
List <ODataBatchResponseItem> responses = new List <ODataBatchResponseItem>();
Guid batchId = Guid.NewGuid();
ODataOptions options = context.RequestServices.GetRequiredService <ODataOptions>();
bool enableContinueOnErrorHeader = (options != null)
? options.EnableContinueOnErrorHeader
: false;
SetContinueOnError(new WebApiRequestHeaders(request.Headers), enableContinueOnErrorHeader);
while (batchReader.Read())
{
ODataBatchResponseItem responseItem = null;
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
responseItem = await ExecuteChangeSetAsync(batchReader, batchId, request, nextHandler);
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
responseItem = await ExecuteOperationAsync(batchReader, batchId, request, nextHandler);
}
if (responseItem != null)
{
responses.Add(responseItem);
if (responseItem.IsResponseSuccessful() == false && ContinueOnError == false)
{
break;
}
}
}
await CreateResponseMessageAsync(responses, request);
}
/// <summary>
/// Executes the ChangeSet.
/// </summary>
/// <param name="batchReader">The batch reader.</param>
/// <param name="batchId">The batch id.</param>
/// <param name="originalRequest">The original request containing all the batch requests.</param>
/// <param name="cancellationToken">The token to monitor for cancellation requests.</param>
/// <returns>The response for the ChangeSet.</returns>
public virtual async Task <ODataBatchResponseItem> ExecuteChangeSetAsync(ODataBatchReader batchReader, Guid batchId, HttpRequestMessage originalRequest, CancellationToken cancellationToken)
{
if (batchReader == null)
{
throw Error.ArgumentNull("batchReader");
}
if (originalRequest == null)
{
throw Error.ArgumentNull("originalRequest");
}
Guid changeSetId = Guid.NewGuid();
List <HttpResponseMessage> changeSetResponse = new List <HttpResponseMessage>();
Dictionary <string, string> contentIdToLocationMapping = new Dictionary <string, string>();
try
{
while (batchReader.Read() && batchReader.State != ODataBatchReaderState.ChangesetEnd)
{
if (batchReader.State == ODataBatchReaderState.Operation)
{
HttpRequestMessage changeSetOperationRequest = await batchReader.ReadChangeSetOperationRequestAsync(batchId, changeSetId, bufferContentStream : false);
changeSetOperationRequest.CopyBatchRequestProperties(originalRequest);
changeSetOperationRequest.DeleteRequestContainer(false);
try
{
HttpResponseMessage response = await ODataBatchRequestItem.SendMessageAsync(Invoker, changeSetOperationRequest, cancellationToken, contentIdToLocationMapping);
if (response.IsSuccessStatusCode)
{
changeSetResponse.Add(response);
}
else
{
ChangeSetRequestItem.DisposeResponses(changeSetResponse);
changeSetResponse.Clear();
changeSetResponse.Add(response);
return(new ChangeSetResponseItem(changeSetResponse));
}
}
finally
{
originalRequest.RegisterForDispose(changeSetOperationRequest.GetResourcesForDisposal());
originalRequest.RegisterForDispose(changeSetOperationRequest);
}
}
}
}
catch
{
ChangeSetRequestItem.DisposeResponses(changeSetResponse);
throw;
}
return(new ChangeSetResponseItem(changeSetResponse));
}
/// <summary>
/// Asynchronously parses the batch requests.
/// </summary>
/// <param name="request">The HTTP request that contains the batch requests.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>The task object that represents this asynchronous operation.</returns>
public override async Task <IList <ODataBatchRequestItem> > ParseBatchRequestsAsync(
HttpRequestMessage request,
CancellationToken cancellationToken)
{
if (this.ApiFactory == null)
{
throw new InvalidOperationException(Resources.BatchHandlerRequiresApiContextFactory);
}
Ensure.NotNull(request, "request");
ODataMessageReaderSettings readerSettings = new ODataMessageReaderSettings
{
DisableMessageStreamDisposal = true,
MessageQuotas = MessageQuotas,
BaseUri = GetBaseUri(request)
};
ODataMessageReader reader =
await request.Content.GetODataMessageReaderAsync(readerSettings, cancellationToken);
request.RegisterForDispose(reader);
List <ODataBatchRequestItem> requests = new List <ODataBatchRequestItem>();
ODataBatchReader batchReader = reader.CreateODataBatchReader();
Guid batchId = Guid.NewGuid();
while (batchReader.Read())
{
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
IList <HttpRequestMessage> changeSetRequests =
await batchReader.ReadChangeSetRequestAsync(batchId, cancellationToken);
foreach (HttpRequestMessage changeSetRequest in changeSetRequests)
{
changeSetRequest.CopyBatchRequestProperties(request);
}
requests.Add(this.CreateChangeSetRequestItem(changeSetRequests));
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
HttpRequestMessage operationRequest = await batchReader.ReadOperationRequestAsync(
batchId,
bufferContentStream : true,
cancellationToken : cancellationToken);
operationRequest.CopyBatchRequestProperties(request);
requests.Add(new OperationRequestItem(operationRequest));
}
}
return(requests);
}
public void ExecuteChangeSetAsync_CopiesPropertiesFromRequest_WithoutExcludedProperties()
{
MockHttpServer server = new MockHttpServer(request =>
{
return(new HttpResponseMessage
{
RequestMessage = request
});
});
UnbufferedODataBatchHandler batchHandler = new UnbufferedODataBatchHandler(server);
HttpRequestMessage batchRequest = new HttpRequestMessage(HttpMethod.Post, "http://example.com/$batch")
{
Content = new MultipartContent("mixed")
{
new MultipartContent("mixed") // ChangeSet
{
ODataBatchRequestHelper.CreateODataRequestContent(new HttpRequestMessage(HttpMethod.Post, "http://example.com/values")
{
Content = new StringContent("foo")
})
}
}
};
batchRequest.Properties.Add("foo", "bar");
batchRequest.SetRouteData(new HttpRouteData(new HttpRoute()));
batchRequest.RegisterForDispose(new StringContent(String.Empty));
ODataMessageReader reader = batchRequest.Content
.GetODataMessageReaderAsync(new ODataMessageReaderSettings {
BaseUri = new Uri("http://example.com")
}, CancellationToken.None)
.Result;
ODataBatchReader batchReader = reader.CreateODataBatchReader();
List <ODataBatchResponseItem> responses = new List <ODataBatchResponseItem>();
Guid batchId = Guid.NewGuid();
batchReader.Read();
var response = batchHandler.ExecuteChangeSetAsync(batchReader, Guid.NewGuid(), batchRequest, CancellationToken.None).Result;
var changeSetResponses = ((ChangeSetResponseItem)response).Responses;
foreach (var changeSetResponse in changeSetResponses)
{
var changeSetRequest = changeSetResponse.RequestMessage;
Assert.Equal("bar", changeSetRequest.Properties["foo"]);
Assert.Null(changeSetRequest.GetRouteData());
Assert.Same(changeSetRequest, changeSetRequest.GetUrlHelper().Request);
Assert.Empty(changeSetRequest.GetResourcesForDisposal());
}
}
public static OeBatchMessage CreateBatchMessage(OeMessageContext context, Stream requestStream, String contentType)
{
IODataRequestMessage requestMessage = new OeInMemoryMessage(requestStream, contentType);
var settings = new ODataMessageReaderSettings()
{
EnableMessageStreamDisposal = false
};
using (var messageReader = new ODataMessageReader(requestMessage, settings))
{
var batchMessage = new List <OeBatchMessage>();
ODataBatchReader batchReader = messageReader.CreateODataBatchReader();
while (batchReader.Read())
{
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
var operations = new List <OeOperationMessage>();
while (batchReader.Read() && batchReader.State != ODataBatchReaderState.ChangesetEnd)
{
if (batchReader.State == ODataBatchReaderState.Operation)
{
OeOperationMessage operation = OeOperationMessage.Create(context, batchReader);
operations.Add(operation);
}
}
return(new OeBatchMessage(contentType, operations));
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
OeOperationMessage operation = OeOperationMessage.Create(context, batchReader);
return(new OeBatchMessage(contentType, operation));
}
}
}
throw new InvalidOperationException("batch not found");
}
/// <summary>
/// Asynchronously parses the batch requests.
/// </summary>
/// <param name="request">The HTTP request that contains the batch requests.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>The task object that represents this asynchronous operation.</returns>
public override async Task <IList <ODataBatchRequestItem> > ParseBatchRequestsAsync(
HttpRequestMessage request,
CancellationToken cancellationToken)
{
Ensure.NotNull(request, "request");
IServiceProvider requestContainer = request.CreateRequestContainer(ODataRouteName);
requestContainer.GetRequiredService <ODataMessageReaderSettings>().BaseUri = GetBaseUri(request);
ODataMessageReader reader
= await request.Content.GetODataMessageReaderAsync(requestContainer, cancellationToken);
request.RegisterForDispose(reader);
List <ODataBatchRequestItem> requests = new List <ODataBatchRequestItem>();
ODataBatchReader batchReader = reader.CreateODataBatchReader();
Guid batchId = Guid.NewGuid();
while (batchReader.Read())
{
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
IList <HttpRequestMessage> changeSetRequests =
await batchReader.ReadChangeSetRequestAsync(batchId, cancellationToken);
foreach (HttpRequestMessage changeSetRequest in changeSetRequests)
{
changeSetRequest.CopyBatchRequestProperties(request);
changeSetRequest.DeleteRequestContainer(false);
}
requests.Add(this.CreateRestierBatchChangeSetRequestItem(changeSetRequests));
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
HttpRequestMessage operationRequest = await batchReader.ReadOperationRequestAsync(
batchId, true, cancellationToken);
operationRequest.CopyBatchRequestProperties(request);
operationRequest.DeleteRequestContainer(false);
requests.Add(new OperationRequestItem(operationRequest));
}
}
return(requests);
}
private void ClientReadSingletonBatchResponse(byte[] responsePayload, string batchContentType)
{
IODataResponseMessage responseMessage = new InMemoryMessage()
{
Stream = new MemoryStream(responsePayload)
};
responseMessage.SetHeader("Content-Type", batchContentType);
using (ODataMessageReader messageReader = new ODataMessageReader(responseMessage, new ODataMessageReaderSettings(), this.userModel))
{
ODataBatchReader batchReader = messageReader.CreateODataBatchReader();
while (batchReader.Read())
{
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
// Encountered an operation (either top-level or in a change set)
ODataBatchOperationResponseMessage operationMessage = batchReader.CreateOperationResponseMessage();
if (operationMessage.StatusCode == 200)
{
using (ODataMessageReader innerMessageReader = new ODataMessageReader(operationMessage, new ODataMessageReaderSettings(), this.userModel))
{
ODataReader reader = innerMessageReader.CreateODataResourceReader();
while (reader.Read())
{
if (reader.State == ODataReaderState.ResourceEnd)
{
ODataResource entry = reader.Item as ODataResource;
Assert.Equal(10, entry.Properties.Single(p => p.Name == "WebId").Value);
Assert.Equal("WebSingleton", entry.Properties.Single(p => p.Name == "Name").Value);
}
}
}
// The only two messages with HTTP-200 response codes are the two GET requests with content id value of null.
// Verify that: for multipart batch the content id of the response is matching that of the request;
// for Json batch the content id of the response is not null.
Assert.True(
(batchReader is ODataJsonLightBatchReader && operationMessage.ContentId != null) ||
(batchReader is ODataMultipartMixedBatchReader && operationMessage.ContentId == null));
}
break;
}
}
}
}
public virtual async Task <IList <ODataBatchRequestItem> > ParseBatchRequestsAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
if (request == null)
{
throw Error.ArgumentNull("request");
}
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings
{
DisableMessageStreamDisposal = true,
MessageQuotas = MessageQuotas,
BaseUri = GetBaseUri(request)
};
cancellationToken.ThrowIfCancellationRequested();
ODataMessageReader reader = await request.Content.GetODataMessageReaderAsync(oDataReaderSettings);
request.RegisterForDispose(reader);
List <ODataBatchRequestItem> requests = new List <ODataBatchRequestItem>();
ODataBatchReader batchReader = reader.CreateODataBatchReader();
Guid batchId = Guid.NewGuid();
while (batchReader.Read())
{
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
IList <HttpRequestMessage> changeSetRequests = await batchReader.ReadChangeSetRequestAsync(batchId, cancellationToken);
foreach (HttpRequestMessage changeSetRequest in changeSetRequests)
{
changeSetRequest.CopyBatchRequestProperties(request);
}
requests.Add(new ChangeSetRequestItem(changeSetRequests));
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
HttpRequestMessage operationRequest = await batchReader.ReadOperationRequestAsync(batchId, bufferContentStream : true, cancellationToken : cancellationToken);
operationRequest.CopyBatchRequestProperties(request);
requests.Add(new OperationRequestItem(operationRequest));
}
}
return(requests);
}
/// <summary>
/// Executes the ChangeSet.
/// </summary>
/// <param name="batchReader">The batch reader.</param>
/// <param name="batchId">The batch id.</param>
/// <param name="originalRequest">The original request containing all the batch requests.</param>
/// <param name="handler">The handler for processing a message.</param>
/// <returns>The response for the ChangeSet.</returns>
public virtual async Task <ODataBatchResponseItem> ExecuteChangeSetAsync(ODataBatchReader batchReader, Guid batchId, HttpRequest originalRequest, RequestDelegate handler)
{
if (batchReader == null)
{
throw Error.ArgumentNull("batchReader");
}
if (originalRequest == null)
{
throw Error.ArgumentNull("originalRequest");
}
if (handler == null)
{
throw Error.ArgumentNull("handler");
}
Guid changeSetId = Guid.NewGuid();
List <HttpContext> changeSetResponse = new List <HttpContext>();
Dictionary <string, string> contentIdToLocationMapping = new Dictionary <string, string>();
while (batchReader.Read() && batchReader.State != ODataBatchReaderState.ChangesetEnd)
{
if (batchReader.State == ODataBatchReaderState.Operation)
{
CancellationToken cancellationToken = originalRequest.HttpContext.RequestAborted;
HttpContext changeSetOperationContext = await batchReader.ReadChangeSetOperationRequestAsync(originalRequest.HttpContext, batchId, changeSetId, false, cancellationToken);
changeSetOperationContext.Request.CopyBatchRequestProperties(originalRequest);
changeSetOperationContext.Request.DeleteRequestContainer(false);
await ODataBatchRequestItem.SendRequestAsync(handler, changeSetOperationContext, contentIdToLocationMapping);
if (changeSetOperationContext.Response.IsSuccessStatusCode())
{
changeSetResponse.Add(changeSetOperationContext);
}
else
{
changeSetResponse.Clear();
changeSetResponse.Add(changeSetOperationContext);
return(new ChangeSetResponseItem(changeSetResponse));
}
}
}
return(new ChangeSetResponseItem(changeSetResponse));
}
public virtual async Task <IList <ODataBatchRequestItem> > ParseBatchRequestsAsync(HttpContext context)
{
if (context == null)
{
throw Error.ArgumentNull("context");
}
HttpRequest request = context.Request;
IServiceProvider requestContainer = request.CreateRequestContainer(ODataRouteName);
requestContainer.GetRequiredService <ODataMessageReaderSettings>().BaseUri = GetBaseUri(request);
ODataMessageReader reader = request.GetODataMessageReader(requestContainer);
CancellationToken cancellationToken = context.RequestAborted;
List <ODataBatchRequestItem> requests = new List <ODataBatchRequestItem>();
ODataBatchReader batchReader = reader.CreateODataBatchReader();
Guid batchId = Guid.NewGuid();
while (batchReader.Read())
{
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
IList <HttpContext> changeSetContexts = await batchReader.ReadChangeSetRequestAsync(context, batchId, cancellationToken);
foreach (HttpContext changeSetContext in changeSetContexts)
{
changeSetContext.Request.CopyBatchRequestProperties(request);
changeSetContext.Request.DeleteRequestContainer(false);
}
requests.Add(new ChangeSetRequestItem(changeSetContexts));
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
HttpContext operationContext = await batchReader.ReadOperationRequestAsync(context, batchId, true, cancellationToken);
operationContext.Request.CopyBatchRequestProperties(request);
operationContext.Request.DeleteRequestContainer(false);
requests.Add(new OperationRequestItem(operationContext));
}
}
return(requests);
}
private void ClientReadBatchResponse(byte[] responsePayload, BodyContentType bodyContentType)
{
IODataResponseMessage responseMessage = new InMemoryMessage()
{
Stream = new MemoryStream(responsePayload)
};
responseMessage.SetHeader(ODataConstants.ContentTypeHeader, batchContentTypeApplicationJson);
using (ODataMessageReader messageReader = new ODataMessageReader(responseMessage, new ODataMessageReaderSettings(), null))
{
ODataBatchReader batchReader = messageReader.CreateODataBatchReader();
while (batchReader.Read())
{
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
// Encountered an operation (either top-level or in a change set)
ODataBatchOperationResponseMessage operationMessage = batchReader.CreateOperationResponseMessage();
if (operationMessage.StatusCode == 200)
{
using (Stream operationMessageBody = operationMessage.GetStream())
{
// Verify the bytes in the response body.
byte[] sampleBytes = bodyContentType == BodyContentType.Textual
? Encoding.UTF8.GetBytes("\"" + this.textualSampleStringB + "\"")
: this.binarySampleBytesB;
Assert.Equal(operationMessageBody.Length, sampleBytes.Length);
foreach (byte samplebyte in sampleBytes)
{
Assert.Equal(samplebyte, operationMessageBody.ReadByte());
}
}
}
else
{
Assert.True(201 == operationMessage.StatusCode);
}
break;
}
}
}
}
private async Task <ODataResponse> ReadResponse(ODataBatchReader odataReader)
{
var batch = new List <ODataResponse>();
while (odataReader.Read())
{
switch (odataReader.State)
{
case ODataBatchReaderState.ChangesetStart:
break;
case ODataBatchReaderState.Operation:
var operationMessage = odataReader.CreateOperationResponseMessage();
if (operationMessage.StatusCode == (int)HttpStatusCode.NoContent)
{
batch.Add(ODataResponse.FromStatusCode(TypeCache, operationMessage.StatusCode, operationMessage.Headers));
}
else if (operationMessage.StatusCode >= (int)HttpStatusCode.BadRequest)
{
batch.Add(ODataResponse.FromStatusCode(TypeCache,
operationMessage.StatusCode,
operationMessage.Headers,
await operationMessage.GetStreamAsync().ConfigureAwait(false),
_session.Settings.WebRequestExceptionMessageSource));
}
else
{
batch.Add(await GetResponseAsync(operationMessage).ConfigureAwait(false));
}
break;
case ODataBatchReaderState.ChangesetEnd:
break;
}
}
return(ODataResponse.FromBatch(TypeCache, batch));
}
private void ServiceProcessBatchRequest(ODataJsonBatchPayloadTestCase testCase, ODataVersion version)
{
string requestPayload = testCase.RequestPayload;
ODataJsonBatchPayloadTestCase.ValidateContentType requestMessageContentTypeVerifier = testCase.ContentTypeVerifier;
IODataRequestMessage requestMessage = new InMemoryMessage()
{
Stream = new MemoryStream(Encoding.ASCII.GetBytes(requestPayload))
};
requestMessage.SetHeader("Content-Type", batchContentTypeApplicationJson);
using (ODataMessageReader messageReader =
new ODataMessageReader(requestMessage, new ODataMessageReaderSettings()
{
Version = version, BaseUri = new Uri("http://odata.org")
}, this.edmModel))
{
ODataBatchReader batchReader = messageReader.CreateODataBatchReader();
int operationIdx = 0;
while (batchReader.Read())
{
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
ODataBatchOperationRequestMessage operationMessage = batchReader.CreateOperationRequestMessage();
// Verify operation message content type processing.
requestMessageContentTypeVerifier.Invoke(operationMessage, operationIdx);
operationIdx++;
break;
}
}
}
}
public virtual async Task <IList <ODataBatchRequestItem> > ParseBatchRequestsAsync(HttpRequestMessage request)
{
if (request == null)
{
throw Error.ArgumentNull("request");
}
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings
{
DisableMessageStreamDisposal = true,
MessageQuotas = MessageQuotas,
BaseUri = GetBaseUri(request)
};
ODataMessageReader reader = await request.Content.GetODataMessageReaderAsync(oDataReaderSettings);
request.RegisterForDispose(reader);
List <ODataBatchRequestItem> requests = new List <ODataBatchRequestItem>();
ODataBatchReader batchReader = reader.CreateODataBatchReader();
Guid batchId = Guid.NewGuid();
while (batchReader.Read())
{
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
requests.Add(new ChangeSetRequestItem(await batchReader.ReadChangeSetRequestAsync(batchId)));
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
requests.Add(new OperationRequestItem(await batchReader.ReadOperationRequestAsync(batchId, bufferContentStream: true)));
}
}
return(requests);
}
internal static IList <TableResult> TableBatchOperationPostProcess(IList <TableResult> result, TableBatchOperation batch, RESTCommand <IList <TableResult> > cmd, HttpWebResponse resp, OperationContext ctx, TableRequestOptions options, string accountName)
{
ODataMessageReaderSettings readerSettings = new ODataMessageReaderSettings();
readerSettings.MessageQuotas = new ODataMessageQuotas()
{
MaxPartsPerBatch = TableConstants.TableServiceMaxResults, MaxReceivedMessageSize = TableConstants.TableServiceMaxPayload
};
using (ODataMessageReader responseReader = new ODataMessageReader(new HttpResponseAdapterMessage(resp, cmd.ResponseStream), readerSettings))
{
// create a reader
ODataBatchReader reader = responseReader.CreateODataBatchReader();
// Initial => changesetstart
if (reader.State == ODataBatchReaderState.Initial)
{
reader.Read();
}
if (reader.State == ODataBatchReaderState.ChangesetStart)
{
// ChangeSetStart => Operation
reader.Read();
}
int index = 0;
bool failError = false;
bool failUnexpected = false;
while (reader.State == ODataBatchReaderState.Operation)
{
TableOperation currentOperation = batch[index];
TableResult currentResult = new TableResult()
{
Result = currentOperation.Entity
};
result.Add(currentResult);
ODataBatchOperationResponseMessage mimePartResponseMessage = reader.CreateOperationResponseMessage();
string contentType = mimePartResponseMessage.GetHeader(Constants.ContentTypeElement);
currentResult.HttpStatusCode = mimePartResponseMessage.StatusCode;
// Validate Status Code.
if (currentOperation.OperationType == TableOperationType.Insert)
{
failError = mimePartResponseMessage.StatusCode == (int)HttpStatusCode.Conflict;
if (currentOperation.EchoContent)
{
failUnexpected = mimePartResponseMessage.StatusCode != (int)HttpStatusCode.Created;
}
else
{
failUnexpected = mimePartResponseMessage.StatusCode != (int)HttpStatusCode.NoContent;
}
}
else if (currentOperation.OperationType == TableOperationType.Retrieve)
{
if (mimePartResponseMessage.StatusCode == (int)HttpStatusCode.NotFound)
{
index++;
// Operation => next
reader.Read();
continue;
}
failUnexpected = mimePartResponseMessage.StatusCode != (int)HttpStatusCode.OK;
}
else
{
failError = mimePartResponseMessage.StatusCode == (int)HttpStatusCode.NotFound;
failUnexpected = mimePartResponseMessage.StatusCode != (int)HttpStatusCode.NoContent;
}
if (failError)
{
// If the parse error is null, then don't get the extended error information and the StorageException will contain SR.ExtendedErrorUnavailable message.
if (cmd.ParseError != null)
{
cmd.CurrentResult.ExtendedErrorInformation = cmd.ParseError(mimePartResponseMessage.GetStream(), resp, contentType);
}
cmd.CurrentResult.HttpStatusCode = mimePartResponseMessage.StatusCode;
if (!string.IsNullOrEmpty(cmd.CurrentResult.ExtendedErrorInformation.ErrorMessage))
{
string msg = cmd.CurrentResult.ExtendedErrorInformation.ErrorMessage;
cmd.CurrentResult.HttpStatusMessage = msg.Substring(0, msg.IndexOf("\n", StringComparison.Ordinal));
}
else
{
cmd.CurrentResult.HttpStatusMessage = mimePartResponseMessage.StatusCode.ToString(CultureInfo.InvariantCulture);
}
throw new StorageException(
cmd.CurrentResult,
cmd.CurrentResult.ExtendedErrorInformation != null ? cmd.CurrentResult.ExtendedErrorInformation.ErrorMessage : SR.ExtendedErrorUnavailable,
null)
{
IsRetryable = false
};
}
if (failUnexpected)
{
// If the parse error is null, then don't get the extended error information and the StorageException will contain SR.ExtendedErrorUnavailable message.
if (cmd.ParseError != null)
{
cmd.CurrentResult.ExtendedErrorInformation = cmd.ParseError(mimePartResponseMessage.GetStream(), resp, contentType);
}
cmd.CurrentResult.HttpStatusCode = mimePartResponseMessage.StatusCode;
if (!string.IsNullOrEmpty(cmd.CurrentResult.ExtendedErrorInformation.ErrorMessage))
{
string msg = cmd.CurrentResult.ExtendedErrorInformation.ErrorMessage;
cmd.CurrentResult.HttpStatusMessage = msg.Substring(0, msg.IndexOf("\n", StringComparison.Ordinal));
}
else
{
cmd.CurrentResult.HttpStatusMessage = mimePartResponseMessage.StatusCode.ToString(CultureInfo.InvariantCulture);
}
string indexString = Convert.ToString(index, CultureInfo.InvariantCulture);
// Attempt to extract index of failing entity from extended error info
if (cmd.CurrentResult.ExtendedErrorInformation != null &&
!string.IsNullOrEmpty(cmd.CurrentResult.ExtendedErrorInformation.ErrorMessage))
{
string tempIndex = TableRequest.ExtractEntityIndexFromExtendedErrorInformation(cmd.CurrentResult);
if (!string.IsNullOrEmpty(tempIndex))
{
indexString = tempIndex;
}
}
throw new StorageException(cmd.CurrentResult, string.Format(CultureInfo.CurrentCulture, SR.BatchErrorInOperation, indexString), null)
{
IsRetryable = true
};
}
// Update etag
if (!string.IsNullOrEmpty(mimePartResponseMessage.GetHeader(Constants.HeaderConstants.EtagHeader)))
{
currentResult.Etag = mimePartResponseMessage.GetHeader(Constants.HeaderConstants.EtagHeader);
if (currentOperation.Entity != null)
{
currentOperation.Entity.ETag = currentResult.Etag;
}
}
// Parse Entity if needed
if (currentOperation.OperationType == TableOperationType.Retrieve || (currentOperation.OperationType == TableOperationType.Insert && currentOperation.EchoContent))
{
if (mimePartResponseMessage.GetHeader(Constants.ContentTypeElement).Contains(Constants.JsonNoMetadataAcceptHeaderValue))
{
ReadEntityUsingJsonParser(currentResult, currentOperation, mimePartResponseMessage.GetStream(), ctx, options);
}
else
{
ReadOdataEntity(currentResult, currentOperation, mimePartResponseMessage, ctx, readerSettings, accountName, options);
}
}
else if (currentOperation.OperationType == TableOperationType.Insert)
{
currentOperation.Entity.Timestamp = ParseETagForTimestamp(currentResult.Etag);
}
index++;
// Operation =>
reader.Read();
}
}
return(result);
}
/// <inheritdoc/>
public override async Task <HttpResponseMessage> ProcessBatchAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
if (request == null)
{
throw Error.ArgumentNull("request");
}
ValidateRequest(request);
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings
{
DisableMessageStreamDisposal = true,
MessageQuotas = MessageQuotas,
BaseUri = GetBaseUri(request)
};
ODataMessageReader reader = await request.Content.GetODataMessageReaderAsync(oDataReaderSettings, cancellationToken);
request.RegisterForDispose(reader);
ODataBatchReader batchReader = reader.CreateODataBatchReader();
List <ODataBatchResponseItem> responses = new List <ODataBatchResponseItem>();
Guid batchId = Guid.NewGuid();
List <IDisposable> resourcesToDispose = new List <IDisposable>();
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(request);
if ((preferHeader != null && preferHeader.Contains(PreferenceContinueOnError)) || (!request.GetConfiguration().HasEnabledContinueOnErrorHeader()))
{
ContinueOnError = true;
}
else
{
ContinueOnError = false;
}
try
{
while (batchReader.Read())
{
ODataBatchResponseItem responseItem = null;
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
responseItem = await ExecuteChangeSetAsync(batchReader, batchId, request, cancellationToken);
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
responseItem = await ExecuteOperationAsync(batchReader, batchId, request, cancellationToken);
}
if (responseItem != null)
{
responses.Add(responseItem);
if (responseItem.IsResponseSuccessful() == false && ContinueOnError == false)
{
break;
}
}
}
}
catch
{
foreach (ODataBatchResponseItem response in responses)
{
if (response != null)
{
response.Dispose();
}
}
throw;
}
return(await CreateResponseMessageAsync(responses, request, cancellationToken));
}
/// <inheritdoc/>
public override async Task <HttpResponseMessage> ProcessBatchAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
if (request == null)
{
throw Error.ArgumentNull("request");
}
ValidateRequest(request);
// This container is for the overall batch request.
IServiceProvider requestContainer = request.CreateRequestContainer(ODataRouteName);
requestContainer.GetRequiredService <ODataMessageReaderSettings>().BaseUri = GetBaseUri(request);
ODataMessageReader reader = await request.Content.GetODataMessageReaderAsync(requestContainer, cancellationToken);
request.RegisterForDispose(reader);
ODataBatchReader batchReader = reader.CreateODataBatchReader();
List <ODataBatchResponseItem> responses = new List <ODataBatchResponseItem>();
Guid batchId = Guid.NewGuid();
HttpConfiguration configuration = request.GetConfiguration();
bool enableContinueOnErrorHeader = (configuration != null)
? configuration.HasEnabledContinueOnErrorHeader()
: false;
SetContinueOnError(new WebApiRequestHeaders(request.Headers), enableContinueOnErrorHeader);
try
{
while (batchReader.Read())
{
ODataBatchResponseItem responseItem = null;
if (batchReader.State == ODataBatchReaderState.ChangesetStart)
{
responseItem = await ExecuteChangeSetAsync(batchReader, batchId, request, cancellationToken);
}
else if (batchReader.State == ODataBatchReaderState.Operation)
{
responseItem = await ExecuteOperationAsync(batchReader, batchId, request, cancellationToken);
}
if (responseItem != null)
{
responses.Add(responseItem);
if (responseItem.IsResponseSuccessful() == false && ContinueOnError == false)
{
break;
}
}
}
}
catch
{
foreach (ODataBatchResponseItem response in responses)
{
if (response != null)
{
response.Dispose();
}
}
throw;
}
return(await CreateResponseMessageAsync(responses, request, cancellationToken));
}
private IEnumerable <OperationResponse> HandleBatchResponse(ODataBatchReader batchReader)
{
if (this.batchMessageReader == null)
{
goto Label_056D;
}
bool iteratorVariable0 = false;
bool iteratorVariable1 = false;
int index = 0;
int iteratorVariable3 = 0;
this.entryIndex = 0;
Label_PostSwitchInIterator :;
while (batchReader.Read())
{
Exception iteratorVariable4;
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
{
iteratorVariable4 = this.ProcessCurrentOperationResponse(batchReader);
if (iteratorVariable1)
{
break;
}
QueryOperationResponse iteratorVariable5 = null;
try
{
if (iteratorVariable4 == null)
{
DataServiceRequest query = this.Queries[index];
MaterializeAtom results = DataServiceRequest.Materialize(this.RequestInfo.GetDeserializationInfo(null), query.QueryComponents(this.RequestInfo.MaxProtocolVersion), null, this.currentOperationResponse.GetHeader("Content-Type"), this.currentOperationResponse.CreateResponseMessage(), query.PayloadKind);
iteratorVariable5 = QueryOperationResponse.GetInstance(query.ElementType, this.currentOperationResponse.Headers, query, results);
}
}
catch (ArgumentException exception)
{
iteratorVariable4 = exception;
}
catch (FormatException exception2)
{
iteratorVariable4 = exception2;
}
catch (InvalidOperationException exception3)
{
iteratorVariable4 = exception3;
}
if (iteratorVariable5 == null)
{
if (this.Queries == null)
{
throw iteratorVariable4;
}
DataServiceRequest request2 = this.Queries[index];
if (this.RequestInfo.IgnoreResourceNotFoundException && (this.currentOperationResponse.StatusCode == HttpStatusCode.NotFound))
{
iteratorVariable5 = QueryOperationResponse.GetInstance(request2.ElementType, this.currentOperationResponse.Headers, request2, MaterializeAtom.EmptyResults);
}
else
{
iteratorVariable5 = QueryOperationResponse.GetInstance(request2.ElementType, this.currentOperationResponse.Headers, request2, MaterializeAtom.EmptyResults);
iteratorVariable5.Error = iteratorVariable4;
}
}
iteratorVariable5.StatusCode = (int)this.currentOperationResponse.StatusCode;
index++;
yield return(iteratorVariable5);
goto Label_PostSwitchInIterator;
}
case ODataBatchReaderState.ChangesetStart:
{
if ((this.IsBatch && iteratorVariable0) || (iteratorVariable3 != 0))
{
System.Data.Services.Client.Error.ThrowBatchUnexpectedContent(InternalError.UnexpectedBeginChangeSet);
}
iteratorVariable1 = true;
continue;
}
case ODataBatchReaderState.ChangesetEnd:
{
iteratorVariable0 = true;
iteratorVariable3 = 0;
iteratorVariable1 = false;
continue;
}
default:
goto Label_0491;
}
this.entryIndex = this.ValidateContentID(this.currentOperationResponse.Headers);
try
{
Descriptor descriptor = this.ChangedEntries[this.entryIndex];
iteratorVariable3 += this.SaveResultProcessed(descriptor);
if (iteratorVariable4 != null)
{
throw iteratorVariable4;
}
this.HandleOperationResponseHeaders(this.currentOperationResponse.StatusCode, this.currentOperationResponse.Headers);
this.HandleOperationResponse(descriptor, this.currentOperationResponse.Headers);
}
catch (Exception exception4)
{
this.ChangedEntries[this.entryIndex].SaveError = exception4;
iteratorVariable4 = exception4;
if (!CommonUtil.IsCatchableExceptionType(exception4))
{
throw;
}
}
ChangeOperationResponse iteratorVariable6 = new ChangeOperationResponse(this.currentOperationResponse.Headers, this.ChangedEntries[this.entryIndex])
{
StatusCode = (int)this.currentOperationResponse.StatusCode
};
if (iteratorVariable4 != null)
{
iteratorVariable6.Error = iteratorVariable4;
}
iteratorVariable3++;
this.entryIndex++;
yield return(iteratorVariable6);
goto Label_PostSwitchInIterator;
Label_0491:
System.Data.Services.Client.Error.ThrowBatchExpectedResponse(InternalError.UnexpectedBatchState);
}
if (((this.Queries == null) && ((!iteratorVariable0 || (0 < index)) || (this.ChangedEntries.Any <Descriptor>(o => (o.ContentGeneratedForSave && (o.SaveResultWasProcessed == 0))) && (!this.IsBatch || (this.ChangedEntries.FirstOrDefault <Descriptor>(o => (o.SaveError != null)) == null))))) || ((this.Queries != null) && (index != this.Queries.Length)))
{
throw System.Data.Services.Client.Error.InvalidOperation(System.Data.Services.Client.Strings.Batch_IncompleteResponseCount);
}
Label_056D:
yield break;
}
private byte[] ServiceReadRequestAndWriterResponseForMultipartBatchVerifyDependsOnIds(string requestPayload, ODataVersion maxVersion)
{
byte[] responseBytes = null;
IODataRequestMessage requestMessage = new InMemoryMessage()
{
Stream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(requestPayload))
};
requestMessage.SetHeader("Content-Type", batchContentTypeMultipartMime);
ODataMessageReaderSettings settings = new ODataMessageReaderSettings {
Version = maxVersion
};
using (ODataMessageReader messageReader = new ODataMessageReader(requestMessage, settings, this.userModel))
{
MemoryStream responseStream = new MemoryStream();
IODataResponseMessage responseMessage = new InMemoryMessage {
Stream = responseStream
};
// Client is expected to receive the response message in the same format as that is used in the request sent.
responseMessage.SetHeader("Content-Type", batchContentTypeMultipartMime);
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage))
{
ODataBatchWriter batchWriter = messageWriter.CreateODataBatchWriter();
batchWriter.WriteStartBatch();
ODataBatchReader batchReader = messageReader.CreateODataBatchReader();
while (batchReader.Read())
{
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
// Encountered an operation (either top-level or in a change set)
ODataBatchOperationRequestMessage operationMessage =
batchReader.CreateOperationRequestMessage();
// Verify DependsOnIds are set correctly
IEnumerable <string> dependsOnIds = operationMessage.DependsOnIds;
switch (operationMessage.ContentId)
{
case "1":
case "2A":
Assert.True(dependsOnIds.Count() == 0);
break;
case "2B":
Assert.True(dependsOnIds.SequenceEqual(new List <string> {
"2A"
}));
break;
case "2C":
Assert.True(dependsOnIds.SequenceEqual(new List <string> {
"2A", "2B"
}));
break;
case "3":
Assert.True(dependsOnIds.SequenceEqual(new List <string> {
"1"
}));
break;
default:
break;
}
ODataBatchOperationResponseMessage response =
batchWriter.CreateOperationResponseMessage(operationMessage.ContentId);
if (operationMessage.Method == "PATCH")
{
response.StatusCode = 204;
response.SetHeader("Content-Type", "application/json;odata.metadata=none");
}
else if (operationMessage.Method == "PUT")
{
response.StatusCode = 201;
response.SetHeader("Content-Type", "application/json;");
}
break;
case ODataBatchReaderState.ChangesetStart:
batchWriter.WriteStartChangeset();
break;
case ODataBatchReaderState.ChangesetEnd:
batchWriter.WriteEndChangeset();
break;
}
}
batchWriter.WriteEndBatch();
responseStream.Position = 0;
responseBytes = responseStream.ToArray();
}
return(responseBytes);
}
}
private IEnumerable<OperationResponse> HandleBatchResponse(ODataBatchReader batchReader)
{
if (this.batchMessageReader == null)
{
goto Label_056D;
}
bool iteratorVariable0 = false;
bool iteratorVariable1 = false;
int index = 0;
int iteratorVariable3 = 0;
this.entryIndex = 0;
Label_PostSwitchInIterator:;
while (batchReader.Read())
{
Exception iteratorVariable4;
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
{
iteratorVariable4 = this.ProcessCurrentOperationResponse(batchReader);
if (iteratorVariable1)
{
break;
}
QueryOperationResponse iteratorVariable5 = null;
try
{
if (iteratorVariable4 == null)
{
DataServiceRequest query = this.Queries[index];
MaterializeAtom results = DataServiceRequest.Materialize(this.RequestInfo.GetDeserializationInfo(null), query.QueryComponents(this.RequestInfo.MaxProtocolVersion), null, this.currentOperationResponse.GetHeader("Content-Type"), this.currentOperationResponse.CreateResponseMessage(), query.PayloadKind);
iteratorVariable5 = QueryOperationResponse.GetInstance(query.ElementType, this.currentOperationResponse.Headers, query, results);
}
}
catch (ArgumentException exception)
{
iteratorVariable4 = exception;
}
catch (FormatException exception2)
{
iteratorVariable4 = exception2;
}
catch (InvalidOperationException exception3)
{
iteratorVariable4 = exception3;
}
if (iteratorVariable5 == null)
{
if (this.Queries == null)
{
throw iteratorVariable4;
}
DataServiceRequest request2 = this.Queries[index];
if (this.RequestInfo.IgnoreResourceNotFoundException && (this.currentOperationResponse.StatusCode == HttpStatusCode.NotFound))
{
iteratorVariable5 = QueryOperationResponse.GetInstance(request2.ElementType, this.currentOperationResponse.Headers, request2, MaterializeAtom.EmptyResults);
}
else
{
iteratorVariable5 = QueryOperationResponse.GetInstance(request2.ElementType, this.currentOperationResponse.Headers, request2, MaterializeAtom.EmptyResults);
iteratorVariable5.Error = iteratorVariable4;
}
}
iteratorVariable5.StatusCode = (int) this.currentOperationResponse.StatusCode;
index++;
yield return iteratorVariable5;
goto Label_PostSwitchInIterator;
}
case ODataBatchReaderState.ChangesetStart:
{
if ((this.IsBatch && iteratorVariable0) || (iteratorVariable3 != 0))
{
System.Data.Services.Client.Error.ThrowBatchUnexpectedContent(InternalError.UnexpectedBeginChangeSet);
}
iteratorVariable1 = true;
continue;
}
case ODataBatchReaderState.ChangesetEnd:
{
iteratorVariable0 = true;
iteratorVariable3 = 0;
iteratorVariable1 = false;
continue;
}
default:
goto Label_0491;
}
this.entryIndex = this.ValidateContentID(this.currentOperationResponse.Headers);
try
{
Descriptor descriptor = this.ChangedEntries[this.entryIndex];
iteratorVariable3 += this.SaveResultProcessed(descriptor);
if (iteratorVariable4 != null)
{
throw iteratorVariable4;
}
this.HandleOperationResponseHeaders(this.currentOperationResponse.StatusCode, this.currentOperationResponse.Headers);
this.HandleOperationResponse(descriptor, this.currentOperationResponse.Headers);
}
catch (Exception exception4)
{
this.ChangedEntries[this.entryIndex].SaveError = exception4;
iteratorVariable4 = exception4;
if (!CommonUtil.IsCatchableExceptionType(exception4))
{
throw;
}
}
ChangeOperationResponse iteratorVariable6 = new ChangeOperationResponse(this.currentOperationResponse.Headers, this.ChangedEntries[this.entryIndex]) {
StatusCode = (int) this.currentOperationResponse.StatusCode
};
if (iteratorVariable4 != null)
{
iteratorVariable6.Error = iteratorVariable4;
}
iteratorVariable3++;
this.entryIndex++;
yield return iteratorVariable6;
goto Label_PostSwitchInIterator;
Label_0491:
System.Data.Services.Client.Error.ThrowBatchExpectedResponse(InternalError.UnexpectedBatchState);
}
if (((this.Queries == null) && ((!iteratorVariable0 || (0 < index)) || (this.ChangedEntries.Any<Descriptor>(o => (o.ContentGeneratedForSave && (o.SaveResultWasProcessed == 0))) && (!this.IsBatch || (this.ChangedEntries.FirstOrDefault<Descriptor>(o => (o.SaveError != null)) == null))))) || ((this.Queries != null) && (index != this.Queries.Length)))
{
throw System.Data.Services.Client.Error.InvalidOperation(System.Data.Services.Client.Strings.Batch_IncompleteResponseCount);
}
Label_056D:
yield break;
}
private async Task<ODataResponse> ReadResponse(ODataBatchReader odataReader)
{
var batch = new List<ODataResponse>();
while (odataReader.Read())
{
switch (odataReader.State)
{
case ODataBatchReaderState.ChangesetStart:
break;
case ODataBatchReaderState.Operation:
var operationMessage = odataReader.CreateOperationResponseMessage();
if (operationMessage.StatusCode == (int)HttpStatusCode.NoContent)
batch.Add(ODataResponse.FromStatusCode(operationMessage.StatusCode));
else
batch.Add(await GetResponseAsync(operationMessage));
break;
case ODataBatchReaderState.ChangesetEnd:
break;
}
}
return ODataResponse.FromBatch(batch);
}
/// <summary>
/// Executes the ChangeSet.
/// </summary>
/// <param name="batchReader">The batch reader.</param>
/// <param name="batchId">The batch id.</param>
/// <param name="originalRequest">The original request containing all the batch requests.</param>
/// <param name="cancellationToken">The token to monitor for cancellation requests.</param>
/// <returns>The response for the ChangeSet.</returns>
public virtual async Task<ODataBatchResponseItem> ExecuteChangeSetAsync(ODataBatchReader batchReader, Guid batchId, HttpRequestMessage originalRequest, CancellationToken cancellationToken)
{
if (batchReader == null)
{
throw Error.ArgumentNull("batchReader");
}
if (originalRequest == null)
{
throw Error.ArgumentNull("originalRequest");
}
Guid changeSetId = Guid.NewGuid();
List<HttpResponseMessage> changeSetResponse = new List<HttpResponseMessage>();
Dictionary<string, string> contentIdToLocationMapping = new Dictionary<string, string>();
try
{
while (batchReader.Read() && batchReader.State != ODataBatchReaderState.ChangesetEnd)
{
if (batchReader.State == ODataBatchReaderState.Operation)
{
HttpRequestMessage changeSetOperationRequest = await batchReader.ReadChangeSetOperationRequestAsync(batchId, changeSetId, bufferContentStream: false);
changeSetOperationRequest.CopyBatchRequestProperties(originalRequest);
try
{
HttpResponseMessage response = await ODataBatchRequestItem.SendMessageAsync(Invoker, changeSetOperationRequest, cancellationToken, contentIdToLocationMapping);
if (response.IsSuccessStatusCode)
{
changeSetResponse.Add(response);
}
else
{
ChangeSetRequestItem.DisposeResponses(changeSetResponse);
changeSetResponse.Clear();
changeSetResponse.Add(response);
return new ChangeSetResponseItem(changeSetResponse);
}
}
finally
{
originalRequest.RegisterForDispose(changeSetOperationRequest.GetResourcesForDisposal());
originalRequest.RegisterForDispose(changeSetOperationRequest);
}
}
}
}
catch
{
ChangeSetRequestItem.DisposeResponses(changeSetResponse);
throw;
}
return new ChangeSetResponseItem(changeSetResponse);
}
internal static IList <TableResult> TableBatchOperationPostProcess(IList <TableResult> result, TableBatchOperation batch, RESTCommand <IList <TableResult> > cmd, HttpWebResponse resp, OperationContext ctx)
{
ODataMessageReaderSettings readerSettings = new ODataMessageReaderSettings();
readerSettings.MessageQuotas = new ODataMessageQuotas()
{
MaxPartsPerBatch = TableConstants.TableServiceMaxResults, MaxReceivedMessageSize = TableConstants.TableServiceMaxPayload
};
using (ODataMessageReader responseReader = new ODataMessageReader(new HttpResponseAdapterMessage(resp, cmd.ResponseStream), readerSettings))
{
// create a reader
ODataBatchReader reader = responseReader.CreateODataBatchReader();
// Initial => changesetstart
if (reader.State == ODataBatchReaderState.Initial)
{
reader.Read();
}
if (reader.State == ODataBatchReaderState.ChangesetStart)
{
// ChangeSetStart => Operation
reader.Read();
}
int index = 0;
bool failError = false;
bool failUnexpected = false;
while (reader.State == ODataBatchReaderState.Operation)
{
TableOperation currentOperation = batch[index];
TableResult currentResult = new TableResult()
{
Result = currentOperation.Entity
};
result.Add(currentResult);
ODataBatchOperationResponseMessage mimePartResponseMessage = reader.CreateOperationResponseMessage();
currentResult.HttpStatusCode = mimePartResponseMessage.StatusCode;
// Validate Status Code
if (currentOperation.OperationType == TableOperationType.Insert)
{
failError = mimePartResponseMessage.StatusCode == (int)HttpStatusCode.Conflict;
failUnexpected = mimePartResponseMessage.StatusCode != (int)HttpStatusCode.Created;
}
else if (currentOperation.OperationType == TableOperationType.Retrieve)
{
if (mimePartResponseMessage.StatusCode == (int)HttpStatusCode.NotFound)
{
index++;
// Operation => next
reader.Read();
continue;
}
failUnexpected = mimePartResponseMessage.StatusCode != (int)HttpStatusCode.OK;
}
else
{
failError = mimePartResponseMessage.StatusCode == (int)HttpStatusCode.NotFound;
failUnexpected = mimePartResponseMessage.StatusCode != (int)HttpStatusCode.NoContent;
}
if (failError)
{
cmd.CurrentResult.ExtendedErrorInformation = StorageExtendedErrorInformation.ReadFromStream(mimePartResponseMessage.GetStream());
cmd.CurrentResult.HttpStatusCode = mimePartResponseMessage.StatusCode;
throw new StorageException(
cmd.CurrentResult,
cmd.CurrentResult.ExtendedErrorInformation != null ? cmd.CurrentResult.ExtendedErrorInformation.ErrorMessage : SR.ExtendedErrorUnavailable,
null)
{
IsRetryable = false
};
}
if (failUnexpected)
{
cmd.CurrentResult.ExtendedErrorInformation = StorageExtendedErrorInformation.ReadFromStream(mimePartResponseMessage.GetStream());
cmd.CurrentResult.HttpStatusCode = mimePartResponseMessage.StatusCode;
string indexString = Convert.ToString(index);
// Attempt to extract index of failing entity from extended error info
if (cmd.CurrentResult.ExtendedErrorInformation != null &&
!string.IsNullOrEmpty(cmd.CurrentResult.ExtendedErrorInformation.ErrorMessage))
{
string tempIndex = TableRequest.ExtractEntityIndexFromExtendedErrorInformation(cmd.CurrentResult);
if (!string.IsNullOrEmpty(tempIndex))
{
indexString = tempIndex;
}
}
throw new StorageException(cmd.CurrentResult, SR.UnexpectedResponseCodeForOperation + indexString, null)
{
IsRetryable = true
};
}
// Update etag
if (!string.IsNullOrEmpty(mimePartResponseMessage.GetHeader("ETag")))
{
currentResult.Etag = mimePartResponseMessage.GetHeader("ETag");
if (currentOperation.Entity != null)
{
currentOperation.Entity.ETag = currentResult.Etag;
}
}
// Parse Entity if needed
if (currentOperation.OperationType == TableOperationType.Retrieve || currentOperation.OperationType == TableOperationType.Insert)
{
ReadOdataEntity(currentResult, currentOperation, mimePartResponseMessage, ctx, readerSettings);
}
index++;
// Operation =>
reader.Read();
}
}
return(result);
}
private byte[] ServiceReadSingletonBatchRequestAndWriterBatchResponse(ODataJsonBatchPayloadTestCase testCase, ODataVersion version)
{
string requestPayload = testCase.RequestPayload;
Action <ODataBatchOperationRequestMessage, IList <string> > requestOpMessageVerifier = testCase.RequestMessageDependsOnIdVerifier;
IODataRequestMessage requestMessage = new InMemoryMessage()
{
Stream = new MemoryStream(Encoding.ASCII.GetBytes(requestPayload))
};
requestMessage.SetHeader("Content-Type", batchContentTypeApplicationJson);
MemoryStream responseStream = new MemoryStream();
using (ODataMessageReader messageReader =
new ODataMessageReader(requestMessage, new ODataMessageReaderSettings()
{
Version = version
}, this.edmModel))
{
IODataResponseMessage responseMessage = new InMemoryMessage {
Stream = responseStream
};
// Client is expected to receive the response message in the same format as that is used in the request sent.
responseMessage.SetHeader("Content-Type", batchContentTypeApplicationJson);
ODataMessageWriterSettings settings = new ODataMessageWriterSettings()
{
Version = version
};
settings.SetServiceDocumentUri(new Uri(serviceDocumentUri));
ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, settings, null);
int operationIdx = 0;
ODataBatchWriter batchWriter = messageWriter.CreateODataBatchWriter();
batchWriter.WriteStartBatch();
ODataBatchReader batchReader = messageReader.CreateODataBatchReader();
while (batchReader.Read())
{
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
// Encountered an operation (either top-level or in a change set)
ODataBatchOperationRequestMessage operationMessage = batchReader.CreateOperationRequestMessage();
// Verify operation message if applicable.
requestOpMessageVerifier?.Invoke(operationMessage, testCase.ListOfDependsOnIds.ElementAt(operationIdx));
if (operationMessage.Method == "POST")
{
ODataBatchOperationResponseMessage response = batchWriter.CreateOperationResponseMessage(operationMessage.ContentId);
response.StatusCode = 201;
response.SetHeader("Content-Type", batchContentTypeApplicationJson);
}
else if (operationMessage.Method == "GET")
{
ODataBatchOperationResponseMessage response = batchWriter.CreateOperationResponseMessage(operationMessage.ContentId);
response.StatusCode = 200;
response.SetHeader("Content-Type", batchContentTypeApplicationJson);
using (ODataMessageWriter operationMessageWriter = new ODataMessageWriter(response, settings, this.edmModel))
{
ODataWriter entryWriter = operationMessageWriter.CreateODataResourceWriter(this.singleton,
this.userType);
ODataResource entry = new ODataResource()
{
TypeName = "NS.User",
Properties =
new[]
{
new ODataProperty()
{
Name = "UserPrincipalName", Value = "*****@*****.**"
},
new ODataProperty()
{
Name = "GivenName", Value = "Jon"
}
}
};
entryWriter.WriteStart(entry);
entryWriter.WriteEnd();
}
}
operationIdx++;
break;
case ODataBatchReaderState.ChangesetStart:
batchWriter.WriteStartChangeset();
break;
case ODataBatchReaderState.ChangesetEnd:
batchWriter.WriteEndChangeset();
break;
}
}
batchWriter.WriteEndBatch();
}
responseStream.Position = 0;
return(responseStream.ToArray());
}
private byte[] ServiceReadReferenceUriBatchRequestAndWriteResponse(byte[] requestPayload)
{
IODataRequestMessage requestMessage = new InMemoryMessage()
{
Stream = new MemoryStream(requestPayload)
};
requestMessage.SetHeader("Content-Type", batchContentTypeApplicationJson);
ODataMessageReaderSettings settings = new ODataMessageReaderSettings();
settings.BaseUri = new Uri(serviceDocumentUri);
byte[] responseBytes = null;
using (ODataMessageReader messageReader = new ODataMessageReader(requestMessage, settings, this.userModel))
{
MemoryStream responseStream = new MemoryStream();
IODataResponseMessage responseMessage = new InMemoryMessage {
Stream = responseStream
};
// Client is expected to receive the response message in the same format as that is used in the request sent.
responseMessage.SetHeader("Content-Type", batchContentTypeApplicationJson);
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage))
{
ODataBatchWriter batchWriter = messageWriter.CreateODataBatchWriter();
batchWriter.WriteStartBatch();
ODataBatchReader batchReader = messageReader.CreateODataBatchReader();
while (batchReader.Read())
{
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
// Encountered an operation (either top-level or in a change set)
ODataBatchOperationRequestMessage operationMessage =
batchReader.CreateOperationRequestMessage();
ODataBatchOperationResponseMessage response =
batchWriter.CreateOperationResponseMessage(operationMessage.ContentId);
if (operationMessage.Method == "PUT")
{
using (ODataMessageReader operationMessageReader = new ODataMessageReader(
operationMessage, new ODataMessageReaderSettings(), this.userModel))
{
ODataReader reader = operationMessageReader.CreateODataResourceReader();
Assert.NotNull(reader);
}
response.StatusCode = 201;
response.SetHeader("Content-Type", "application/json;odata.metadata=none");
}
else if (operationMessage.Method == "PATCH")
{
using (ODataMessageReader operationMessageReader = new ODataMessageReader(
operationMessage, new ODataMessageReaderSettings(), this.userModel))
{
ODataReader reader = operationMessageReader.CreateODataResourceReader();
Assert.NotNull(reader);
}
response.StatusCode = 204;
}
else if (operationMessage.Method == "GET")
{
response.StatusCode = 200;
response.SetHeader("Content-Type", "application/json;");
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings();
writerSettings.ODataUri.ServiceRoot = new Uri(serviceDocumentUri);
using (
ODataMessageWriter operationMessageWriter = new ODataMessageWriter(response,
writerSettings, this.userModel))
{
ODataWriter entryWriter =
operationMessageWriter.CreateODataResourceWriter(this.singleton,
this.webType);
ODataResource entry = new ODataResource()
{
TypeName = "NS.Web",
Properties = new[]
{
new ODataProperty()
{
Name = "WebId", Value = -1
},
new ODataProperty()
{
Name = "Name", Value = aVeryLongString
}
}
};
entryWriter.WriteStart(entry);
entryWriter.WriteEnd();
}
}
break;
case ODataBatchReaderState.ChangesetStart:
// Set the group Id on the writer side to correlate with request.
string atomicGroupId = batchReader.CurrentGroupId;
batchWriter.WriteStartChangeset(atomicGroupId);
break;
case ODataBatchReaderState.ChangesetEnd:
batchWriter.WriteEndChangeset();
break;
}
}
batchWriter.WriteEndBatch();
responseStream.Position = 0;
responseBytes = responseStream.ToArray();
}
return(responseBytes);
}
}
private byte[] ServiceReadBatchRequestAndWriterBatchResponse(byte[] requestPayload, BodyContentType bodyContentType)
{
IODataRequestMessage requestMessage = new InMemoryMessage()
{
Stream = new MemoryStream(requestPayload)
};
requestMessage.SetHeader(ODataConstants.ContentTypeHeader, batchContentTypeApplicationJson);
using (ODataMessageReader messageReader = new ODataMessageReader(requestMessage, new ODataMessageReaderSettings(), null))
{
MemoryStream responseStream = new MemoryStream();
IODataResponseMessage responseMessage = new InMemoryMessage {
Stream = responseStream
};
// Client is expected to receive the response message in the same format as that is used in the request sent.
responseMessage.SetHeader(ODataConstants.ContentTypeHeader, batchContentTypeApplicationJson);
ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage);
ODataBatchWriter batchWriter = messageWriter.CreateODataBatchWriter();
batchWriter.WriteStartBatch();
ODataBatchReader batchReader = messageReader.CreateODataBatchReader();
while (batchReader.Read())
{
switch (batchReader.State)
{
case ODataBatchReaderState.Operation:
ODataBatchOperationRequestMessage operationMessage = batchReader.CreateOperationRequestMessage();
if (operationMessage.Method == "PUT")
{
using (Stream operationMessageBodyStream = operationMessage.GetStream())
{
// Verify the bytes in the request operation stream.
byte[] sampleBytes = bodyContentType == BodyContentType.Textual
? Encoding.UTF8.GetBytes("\"" + this.textualSampleStringA + "\"")
: binarySampleBytesA;
Assert.Equal(operationMessageBodyStream.Length, sampleBytes.Length);
foreach (byte samplebyte in sampleBytes)
{
Assert.Equal(samplebyte, operationMessageBodyStream.ReadByte());
}
}
// Create the response.
ODataBatchOperationResponseMessage operationResponse = batchWriter.CreateOperationResponseMessage(operationMessage.ContentId);
operationResponse.StatusCode = 201;
operationResponse.SetHeader("CoNtEnT-TyPe", "application/json;odata.metadata=none");
}
else if (operationMessage.Method == "GET")
{
ODataBatchOperationResponseMessage operationResponse = batchWriter.CreateOperationResponseMessage(operationMessage.ContentId);
operationResponse.StatusCode = 200;
operationResponse.SetHeader("CoNtEnT-TyPe", GetContentType(bodyContentType));
ODataMessageWriterSettings settings = new ODataMessageWriterSettings();
settings.SetServiceDocumentUri(new Uri(serviceDocumentUri));
using (ODataMessageWriter operationMessageWriter = new ODataMessageWriter(operationResponse, settings, null))
{
operationMessageWriter.WriteValue(GetEncodedContentObject(bodyContentType, false));
}
}
break;
case ODataBatchReaderState.ChangesetStart:
batchWriter.WriteStartChangeset();
break;
case ODataBatchReaderState.ChangesetEnd:
batchWriter.WriteEndChangeset();
break;
}
}
batchWriter.WriteEndBatch();
responseStream.Position = 0;
return(responseStream.ToArray());
}
}
/// <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>
/// 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);
}
}