private void VerifyChangeOperationResponse(ChangeOperationResponseData expected, ChangeOperationResponse actual, int responseOrder)
{
this.Assert.IsNotNull(actual.Descriptor, GetVerificationFailureMessage(responseOrder, "Change operation response descriptor should not be null!"));
this.VerifyDescriptor(expected.DescriptorData, actual.Descriptor, responseOrder);
this.Assert.AreEqual(
expected.StatusCode,
actual.StatusCode,
GetVerificationFailureMessage(responseOrder, "Status code verification failed for the change operation response data: {0}.", expected));
// No headers verification
// Verify exceptions
if (!string.IsNullOrEmpty(expected.ExceptionId))
{
throw new TaupoNotSupportedException(
string.Format(
CultureInfo.InvariantCulture,
"Change operation response data with order {0} has non-null exception id '{1}'. This verifier does not support exception verification.",
responseOrder,
expected.ExceptionId));
}
this.Assert.IsNull(actual.Error, GetVerificationFailureMessage(responseOrder, "Unexpected exception thrown:\r\n{0}", actual.Error));
this.Assert.AreEqual(
expected.DescriptorData.State.ToProductEnum(),
actual.Descriptor.State,
GetVerificationFailureMessage(responseOrder, "Descriptor State verification failed for the change operation response data: {0}.", expected));
}
/// <summary>
/// Handle the response.
/// </summary>
/// <returns>an instance of the DataServiceResponse, containing individual responses for all the requests made during this SaveChanges call.</returns>
protected override DataServiceResponse HandleResponse()
{
List <OperationResponse> responses = new List <OperationResponse>(this.cachedResponses != null ? this.cachedResponses.Count : 0);
DataServiceResponse service = new DataServiceResponse(null, -1, responses, false /*isBatch*/);
Exception ex = null;
try
{
foreach (CachedResponse response in this.cachedResponses)
{
Descriptor descriptor = response.Descriptor;
this.SaveResultProcessed(descriptor);
OperationResponse operationResponse = new ChangeOperationResponse(response.Headers, descriptor);
operationResponse.StatusCode = (int)response.StatusCode;
if (response.Exception != null)
{
operationResponse.Error = response.Exception;
if (ex == null)
{
ex = response.Exception;
}
}
else
{
this.cachedResponse = response;
#if DEBUG
this.HandleOperationResponse(descriptor, response.Headers, response.StatusCode);
#else
this.HandleOperationResponse(descriptor, response.Headers);
#endif
}
responses.Add(operationResponse);
}
}
catch (InvalidOperationException e)
{
ex = e;
}
if (ex != null)
{
throw new DataServiceRequestException(Strings.DataServiceException_GeneralError, ex, service);
}
return(service);
}
/// <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);
}
}
/// <summary>
/// Handle the response.
/// </summary>
/// <returns>an instance of the DataServiceResponse, containing individual responses for all the requests made during this SaveChanges call.</returns>
protected override DataServiceResponse HandleResponse()
{
List<OperationResponse> responses = new List<OperationResponse>(this.cachedResponses != null ? this.cachedResponses.Count : 0);
DataServiceResponse service = new DataServiceResponse(null, -1, responses, false /*isBatch*/);
Exception ex = null;
try
{
foreach (CachedResponse response in this.cachedResponses)
{
Descriptor descriptor = response.Descriptor;
this.SaveResultProcessed(descriptor);
OperationResponse operationResponse = new ChangeOperationResponse(response.Headers, descriptor);
operationResponse.StatusCode = (int)response.StatusCode;
if (response.Exception != null)
{
operationResponse.Error = response.Exception;
if (ex == null)
{
ex = response.Exception;
}
}
else
{
this.cachedResponse = response;
#if DEBUG
this.HandleOperationResponse(descriptor, response.Headers, response.StatusCode);
#else
this.HandleOperationResponse(descriptor, response.Headers);
#endif
}
responses.Add(operationResponse);
}
}
catch (InvalidOperationException e)
{
ex = e;
}
if (ex != null)
{
throw new DataServiceRequestException(Strings.DataServiceException_GeneralError, ex, service);
}
return service;
}
public ChangesetResponseWrapper(ChangeOperationResponse cr)
: base(cr)
{
this._ChangesetResponse = cr;
}