private ExpectedClientRequest CreateSaveStreamRequest(StreamDescriptorData streamDescriptorData, Uri requestUri)
{
HttpVerb verb;
if (streamDescriptorData.State == EntityStates.Added)
{
verb = HttpVerb.Post;
}
else
{
ExceptionUtilities.Assert(streamDescriptorData.State == EntityStates.Modified, "Stream descriptor state should only be added or modified. State was: '{0}'", streamDescriptorData.State);
verb = HttpVerb.Put;
}
var request = new ExpectedClientRequest()
{
Verb = verb, Uri = requestUri
};
foreach (var header in streamDescriptorData.SaveStream.Headers)
{
request.Headers.Add(header);
}
request.Body = new PrimitiveValue(null, streamDescriptorData.SaveStream.StreamLogger.GetAllBytesRead());
return(request);
}
private void VerifyStreamClosed(StreamDescriptorData streamDescriptor)
{
var saveStream = streamDescriptor.SaveStream;
if (saveStream != null)
{
this.parent.Assert.IsTrue(saveStream.StreamLogger.IsEndOfStream, string.Format(CultureInfo.InvariantCulture, "Stream was not read to the end: {0}", streamDescriptor));
this.parent.Assert.AreEqual(
saveStream.CloseStream,
saveStream.StreamLogger.IsClosed,
string.Format(CultureInfo.InvariantCulture, "Save stream should/should not have been closed: {0}", streamDescriptor));
streamDescriptor.SaveStream = null;
}
}
private void VerifyDescriptor(DescriptorData expected, Descriptor actual, int responseOrder)
{
EntityDescriptorData entityDescriptorData = expected as EntityDescriptorData;
LinkDescriptorData linkDescriptorData = expected as LinkDescriptorData;
StreamDescriptorData streamDescriptorData = expected as StreamDescriptorData;
if (entityDescriptorData != null)
{
EntityDescriptor entityDescriptor = actual as EntityDescriptor;
this.Assert.IsNotNull(entityDescriptor, GetVerificationFailureMessage(responseOrder, "Unexpected descriptor type:\r\nExpected: {0}\r\nActual: {1}\r\nExpected descriptor data: {2}.", typeof(EntityDescriptor).Name, actual.GetType().Name, entityDescriptorData));
this.Assert.AreSame(
entityDescriptorData.Entity,
entityDescriptor.Entity,
GetVerificationFailureMessage(responseOrder, "Entity verification failed for the entity descriptor data: {0}.", expected));
}
else if (linkDescriptorData != null)
{
LinkDescriptor linkDescriptor = actual as LinkDescriptor;
this.Assert.IsNotNull(linkDescriptor, GetVerificationFailureMessage(responseOrder, "Unexpected descriptor type:\r\nExpected: {0}\r\nActual: {1}\r\nExpected descriptor data: {2}.", typeof(LinkDescriptor).Name, actual.GetType().Name, linkDescriptorData));
bool notMatch = linkDescriptorData.SourceDescriptor.Entity != linkDescriptor.Source ||
(linkDescriptorData.TargetDescriptor == null && linkDescriptor.Target != null) ||
(linkDescriptorData.TargetDescriptor != null && linkDescriptorData.TargetDescriptor.Entity != linkDescriptor.Target) ||
linkDescriptorData.SourcePropertyName != linkDescriptor.SourceProperty;
this.Assert.IsFalse(notMatch, GetVerificationFailureMessage(responseOrder, "Link verification failed.\r\nExpected: {0}\r\nActual: {1}", linkDescriptorData, linkDescriptor.ToTraceString()));
}
else
{
#if WINDOWS_PHONE
throw new TaupoNotSupportedException("StreamDescriptors are not supported on Windows Phone");
#else
ExceptionUtilities.CheckObjectNotNull(streamDescriptorData, "Expected was not an entity, link, or stream descriptor: {0}", expected);
StreamDescriptor streamDescriptor = actual as StreamDescriptor;
this.Assert.IsNotNull(streamDescriptor, GetVerificationFailureMessage(responseOrder, "Unexpected descriptor type:\r\nExpected: {0}\r\nActual: {1}\r\nExpected descriptor data: {2}.", typeof(StreamDescriptor).Name, actual.GetType().Name, streamDescriptorData));
this.Assert.AreEqual(streamDescriptorData.State.ToProductEnum(), streamDescriptor.State, GetVerificationFailureMessage(responseOrder, "Stream descriptor state verification failed."));
this.Assert.AreEqual(streamDescriptorData.Name, streamDescriptor.StreamLink.Name, GetVerificationFailureMessage(responseOrder, "Stream descriptor name verification failed."));
this.Assert.AreEqual(streamDescriptorData.ETag, streamDescriptor.StreamLink.ETag, GetVerificationFailureMessage(responseOrder, "Stream descriptor etag verification failed."));
this.Assert.AreEqual(streamDescriptorData.ContentType, streamDescriptor.StreamLink.ContentType, GetVerificationFailureMessage(responseOrder, "Stream descriptor content type verification failed."));
this.Assert.AreEqual(streamDescriptorData.EditLink, streamDescriptor.StreamLink.EditLink, GetVerificationFailureMessage(responseOrder, "Stream descriptor edit link verification failed."));
this.Assert.AreEqual(streamDescriptorData.SelfLink, streamDescriptor.StreamLink.SelfLink, GetVerificationFailureMessage(responseOrder, "Stream descriptor self link verification failed."));
#endif
}
}
private ExpectedClientRequest CreateStreamUpdateRequest(StreamDescriptorData streamDescriptorData, SaveChangesOptions options)
{
var request = this.CreateSaveStreamRequest(streamDescriptorData, streamDescriptorData.EditLink);
request.Headers[HttpHeaders.IfMatch] = streamDescriptorData.ETag;
request.Headers[HttpHeaders.Prefer] = null;
request.Headers[HttpHeaders.DataServiceVersion] = ToClientHeaderFormat(DataServiceProtocolVersion.V4);
this.SetDefaultAcceptHeader(request, options);
SetContentTypeHeaderForStream(request, streamDescriptorData);
string hintString = @"Stream update\r\n{{\r\n Descriptor = {0}\r\n\r\n}}";
request.DebugHintString = string.Format(CultureInfo.InvariantCulture, hintString, streamDescriptorData);
return(request);
}
private ExpectedClientRequest CreateStreamInsertRequest(DataServiceContextData contextData, StreamDescriptorData streamDescriptorData, SaveChangesOptions options)
{
ExceptionUtilities.Assert(streamDescriptorData.Name == null, "Can only be used for media-resources");
var insertUri = GetEntityInsertUri(contextData, streamDescriptorData.EntityDescriptor);
var request = this.CreateSaveStreamRequest(streamDescriptorData, insertUri);
string preference = contextData.AddAndUpdateResponsePreference.ToHeaderValue();
var dsv = GetDataServiceVersion(request.Verb, preference);
request.Headers[HttpHeaders.DataServiceVersion] = ToClientHeaderFormat(dsv);
request.Headers[HttpHeaders.IfMatch] = null;
request.Headers[HttpHeaders.Prefer] = preference;
this.SetDefaultAcceptHeader(request, options);
SetContentTypeHeaderForStream(request, streamDescriptorData);
string hintString = @"Stream insert\r\n{{\r\n Descriptor = {0}\r\n\r\n}}";
request.DebugHintString = string.Format(CultureInfo.InvariantCulture, hintString, streamDescriptorData);
return(request);
}
private static void SetContentTypeHeaderForStream(ExpectedClientRequest request, StreamDescriptorData streamDescriptorData)
{
request.Headers[HttpHeaders.ContentType] = streamDescriptorData.ContentType;
if (streamDescriptorData.ContentType == null)
{
request.Headers[HttpHeaders.ContentType] = MimeTypes.Any;
}
foreach (var header in streamDescriptorData.SaveStream.Headers)
{
request.Headers[header.Key] = header.Value;
}
request.Headers[HttpHeaders.Accept] = DefaultAccept;
}
/// <summary>
/// Tracks the SaveChanges method.
/// </summary>
/// <param name="data">The data service context data on which to apply state transition.</param>
/// <param name="options">The options.</param>
/// <param name="response">The response.</param>
/// <param name="cachedOperationsFromResponse">The individual operation respones, pre-enumerated and cached.</param>
/// <param name="tracker">The entity data change tracker to use</param>
public static void TrackSaveChanges(this DataServiceContextData data, SaveChangesOptions options, DSClient.DataServiceResponse response, IEnumerable <DSClient.OperationResponse> cachedOperationsFromResponse, IEntityDescriptorDataChangeTracker tracker)
{
ExceptionUtilities.CheckArgumentNotNull(data, "data");
ExceptionUtilities.CheckArgumentNotNull(response, "response");
ExceptionUtilities.CheckArgumentNotNull(cachedOperationsFromResponse, "cachedOperationsFromResponse");
ExceptionUtilities.CheckArgumentNotNull(tracker, "tracker");
// Check options and response consistency
if ((options & SaveChangesOptions.ContinueOnError) == 0)
{
ExceptionUtilities.Assert(response.Count(r => r.Error != null) == 0, "Check save changes options and response consistency: no errors in the response when ContinueOnError is off.");
}
// because some links will not have separate requests, we need to keep track of all link changes
var allPendingLinkChanges = data.GetOrderedChanges().OfType <LinkDescriptorData>().ToList();
// go through the pending changes and update the states based on whether the request succeeded
foreach (DSClient.ChangeOperationResponse changeResponse in cachedOperationsFromResponse)
{
DescriptorData descriptorData;
LinkDescriptorData linkDescriptorData = null;
StreamDescriptorData streamDescriptorData = null;
var entityDescriptor = changeResponse.Descriptor as DSClient.EntityDescriptor;
if (entityDescriptor != null)
{
descriptorData = data.GetEntityDescriptorData(entityDescriptor.Entity);
}
else
{
var linkDescriptor = changeResponse.Descriptor as DSClient.LinkDescriptor;
if (linkDescriptor != null)
{
linkDescriptorData = data.GetLinkDescriptorData(linkDescriptor.Source, linkDescriptor.SourceProperty, linkDescriptor.Target);
descriptorData = linkDescriptorData;
allPendingLinkChanges.Remove(linkDescriptorData);
}
else
{
// for stream descriptors, we need to find the parent descriptor, then get the stream descriptor data from it
var streamDescriptor = (DSClient.StreamDescriptor)changeResponse.Descriptor;
entityDescriptor = streamDescriptor.EntityDescriptor;
streamDescriptorData = data.GetStreamDescriptorData(entityDescriptor.Entity, streamDescriptor.StreamLink.Name);
descriptorData = streamDescriptorData;
}
}
// don't update states for responses that indicate failure
if (changeResponse.Error != null)
{
continue;
}
// because the request succeeded, make the corresponding updates to the states
if (descriptorData.State == EntityStates.Deleted ||
(linkDescriptorData != null &&
linkDescriptorData.State == EntityStates.Modified &&
linkDescriptorData.SourceDescriptor.State == EntityStates.Deleted))
{
data.RemoveDescriptorData(descriptorData);
}
else
{
// for non-deleted descriptors, we need to update states based on the headers
var entityDescriptorData = descriptorData as EntityDescriptorData;
if (entityDescriptorData != null)
{
if (entityDescriptorData.IsMediaLinkEntry && entityDescriptorData.DefaultStreamState == EntityStates.Modified)
{
entityDescriptorData.DefaultStreamDescriptor.UpdateFromHeaders(changeResponse.Headers);
entityDescriptorData.DefaultStreamState = EntityStates.Unchanged;
}
else
{
if (entityDescriptorData.IsMediaLinkEntry && entityDescriptorData.DefaultStreamState == EntityStates.Added)
{
entityDescriptorData.DefaultStreamState = EntityStates.Unchanged;
}
// because there might have been a reading-entity event for this entity, we need to apply the headers through the tracker
tracker.TrackUpdateFromHeaders(entityDescriptorData, changeResponse.Headers);
// ensure that all updates are applied before moving to the next response
tracker.ApplyPendingUpdates(entityDescriptorData);
entityDescriptorData.ParentForInsert = null;
entityDescriptorData.ParentPropertyForInsert = null;
entityDescriptorData.InsertLink = null;
}
}
else if (streamDescriptorData != null)
{
streamDescriptorData.UpdateFromHeaders(changeResponse.Headers);
}
descriptorData.State = EntityStates.Unchanged;
}
}
// go through each link change that did not have an assocatiated response and update its state
foreach (var linkDescriptorData in allPendingLinkChanges.OfType <LinkDescriptorData>())
{
if (linkDescriptorData.State == EntityStates.Added || linkDescriptorData.State == EntityStates.Modified)
{
linkDescriptorData.State = EntityStates.Unchanged;
}
}
}