private async Task ExecuteChangeSet(
ChangeSetRequestItem changeSet,
IList<ODataBatchResponseItem> responses,
CancellationToken cancellation)
{
ChangeSetResponseItem changeSetResponse;
// Create a new ShoppingContext instance, associate it with each of the requests, start a new
// transaction, execute the changeset and then commit or rollback the transaction depending on
// whether the responses were all successful or not.
using (ShoppingContext context = new ShoppingContext())
{
foreach (HttpRequestMessage request in changeSet.Requests)
{
request.SetContext(context);
}
using (DbContextTransaction transaction = context.Database.BeginTransaction())
{
changeSetResponse = (ChangeSetResponseItem)await changeSet.SendRequestAsync(Invoker, cancellation);
responses.Add(changeSetResponse);
if (changeSetResponse.Responses.All(r => r.IsSuccessStatusCode))
{
transaction.Commit();
}
else
{
transaction.Rollback();
}
}
}
}
public void SendRequestAsync_ReturnsSingleErrorResponse()
{
HttpRequestMessage[] requests = new HttpRequestMessage[]
{
new HttpRequestMessage(HttpMethod.Get, "http://example.com"),
new HttpRequestMessage(HttpMethod.Post, "http://example.com"),
new HttpRequestMessage(HttpMethod.Put, "http://example.com")
};
ChangeSetRequestItem requestItem = new ChangeSetRequestItem(requests);
Mock<HttpMessageInvoker> invoker = new Mock<HttpMessageInvoker>(new HttpServer());
invoker.Setup(i => i.SendAsync(It.IsAny<HttpRequestMessage>(), CancellationToken.None))
.Returns<HttpRequestMessage, CancellationToken>((req, c) =>
{
if (req.Method == HttpMethod.Post)
{
return Task.FromResult(new HttpResponseMessage(HttpStatusCode.BadRequest));
}
return Task.FromResult(new HttpResponseMessage());
});
var response = requestItem.SendRequestAsync(invoker.Object, CancellationToken.None).Result;
var changesetResponse = Assert.IsType<ChangeSetResponseItem>(response);
Assert.Equal(1, changesetResponse.Responses.Count());
Assert.Equal(HttpStatusCode.BadRequest, changesetResponse.Responses.First().StatusCode);
}
public void Parameter_Constructor()
{
HttpRequestMessage[] requests = new HttpRequestMessage[0];
ChangeSetRequestItem requestItem = new ChangeSetRequestItem(requests);
Assert.Same(requests, requestItem.Requests);
}
public void SendRequestAsync_DisposesResponseInCaseOfException()
{
List<MockHttpResponseMessage> responses = new List<MockHttpResponseMessage>();
ChangeSetRequestItem requestItem = new ChangeSetRequestItem(new HttpRequestMessage[]
{
new HttpRequestMessage(HttpMethod.Get, "http://example.com"),
new HttpRequestMessage(HttpMethod.Post, "http://example.com"),
new HttpRequestMessage(HttpMethod.Put, "http://example.com")
});
Mock<HttpMessageInvoker> invoker = new Mock<HttpMessageInvoker>(new HttpServer());
invoker.Setup(i => i.SendAsync(It.IsAny<HttpRequestMessage>(), CancellationToken.None))
.Returns<HttpRequestMessage, CancellationToken>((req, cancel) =>
{
if (req.Method == HttpMethod.Put)
{
throw new InvalidOperationException();
}
var response = new MockHttpResponseMessage();
responses.Add(response);
return Task.FromResult<HttpResponseMessage>(response);
});
Assert.Throws<InvalidOperationException>(
() => requestItem.SendRequestAsync(invoker.Object, CancellationToken.None).Result);
Assert.Equal(2, responses.Count);
foreach (var response in responses)
{
Assert.True(response.IsDisposed);
}
}
public void SendRequestAsync_NullInvoker_Throws()
{
ChangeSetRequestItem requestItem = new ChangeSetRequestItem(new HttpRequestMessage[0]);
Assert.ThrowsArgumentNull(
() => requestItem.SendRequestAsync(null, CancellationToken.None).Wait(),
"invoker");
}
public BatchChangeSetRequestItem(ChangeSetRequestItem copy, HttpRequestMessage parentRequest)
: base(copy.Requests)
{
Contract.Requires<ArgumentNullException>(parentRequest != null);
_parentRequest = parentRequest;
_changeSetContext = new ChangeSetContext();
}
/// <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));
}
public void GetResourcesForDisposal_ReturnsResourcesRegisteredForDispose()
{
var disposeObject1 = new StringContent("foo");
var request1 = new HttpRequestMessage(HttpMethod.Get, "http://example.com");
request1.RegisterForDispose(disposeObject1);
var disposeObject2 = new StringContent("bar");
var request2 = new HttpRequestMessage(HttpMethod.Post, "http://example.com");
request2.RegisterForDispose(disposeObject2);
ChangeSetRequestItem requestItem = new ChangeSetRequestItem(new HttpRequestMessage[] { request1, request2 });
var resourcesForDisposal = requestItem.GetResourcesForDisposal();
Assert.Equal(2, resourcesForDisposal.Count());
Assert.Contains(disposeObject1, resourcesForDisposal);
Assert.Contains(disposeObject2, resourcesForDisposal);
}
public void SendRequestAsync_ReturnsChangeSetResponse()
{
HttpRequestMessage[] requests = new HttpRequestMessage[]
{
new HttpRequestMessage(HttpMethod.Get, "http://example.com"),
new HttpRequestMessage(HttpMethod.Post, "http://example.com")
};
ChangeSetRequestItem requestItem = new ChangeSetRequestItem(requests);
Mock<HttpMessageInvoker> invoker = new Mock<HttpMessageInvoker>(new HttpServer());
invoker.Setup(i => i.SendAsync(It.IsAny<HttpRequestMessage>(), CancellationToken.None))
.Returns(() =>
{
return Task.FromResult(new HttpResponseMessage());
});
var response = requestItem.SendRequestAsync(invoker.Object, CancellationToken.None).Result;
var changesetResponse = Assert.IsType<ChangeSetResponseItem>(response);
Assert.Equal(2, changesetResponse.Responses.Count());
}
public void Dispose_DisposesAllHttpRequestMessages()
{
ChangeSetRequestItem requestItem = new ChangeSetRequestItem(new MockHttpRequestMessage[]
{
new MockHttpRequestMessage(),
new MockHttpRequestMessage(),
new MockHttpRequestMessage()
});
requestItem.Dispose();
Assert.Equal(3, requestItem.Requests.Count());
foreach (var request in requestItem.Requests)
{
Assert.True(((MockHttpRequestMessage)request).IsDisposed);
}
}
