/// <summary>
/// Clones the current stream descriptor data
/// </summary>
/// <param name="clonedEntityDescriptor">The entity descriptor that will contain the result of this clone</param>
/// <returns>A clone of the current stream descriptor data</returns>
public StreamDescriptorData Clone(EntityDescriptorData clonedEntityDescriptor)
{
var clone = new StreamDescriptorData(clonedEntityDescriptor, this.Name);
clone.State = this.State;
clone.ChangeOrder = this.ChangeOrder;
clone.ContentType = this.ContentType;
clone.ETag = this.ETag;
if (this.EditLink != null)
{
clone.EditLink = new Uri(this.EditLink.OriginalString, UriKind.RelativeOrAbsolute);
}
if (this.SelfLink != null)
{
clone.SelfLink = new Uri(this.SelfLink.OriginalString, UriKind.RelativeOrAbsolute);
}
if (this.SaveStream != null)
{
clone.SaveStream = this.SaveStream.Clone();
}
return(clone);
}
/// <summary>
/// Sets the etag
/// </summary>
/// <param name="streamDescriptorData">The stream descriptor data.</param>
/// <param name="value">The etag to set.</param>
/// <returns><see cref="StreamDescriptorData"/> on which etag has been set.</returns>
public static StreamDescriptorData SetETag(this StreamDescriptorData streamDescriptorData, string value)
{
ExceptionUtilities.CheckArgumentNotNull(streamDescriptorData, "streamDescriptorData");
streamDescriptorData.ETag = value;
return(streamDescriptorData);
}
/// <summary>
/// Sets the content type
/// </summary>
/// <param name="streamDescriptorData">The stream descriptor data.</param>
/// <param name="contentType">The content type.</param>
/// <returns><see cref="StreamDescriptorData"/> on which content type has been set.</returns>
public static StreamDescriptorData SetContentType(this StreamDescriptorData streamDescriptorData, string contentType)
{
ExceptionUtilities.CheckArgumentNotNull(streamDescriptorData, "streamDescriptorData");
streamDescriptorData.ContentType = contentType;
return(streamDescriptorData);
}
/// <summary>
/// Sets the self link.
/// </summary>
/// <param name="streamDescriptorData">The stream descriptor data.</param>
/// <param name="selfLink">The self link.</param>
/// <returns><see cref="StreamDescriptorData"/> on which self link has been set.</returns>
public static StreamDescriptorData SetSelfLink(this StreamDescriptorData streamDescriptorData, Uri selfLink)
{
ExceptionUtilities.CheckArgumentNotNull(streamDescriptorData, "streamDescriptorData");
streamDescriptorData.SelfLink = selfLink;
return(streamDescriptorData);
}
private void InitializeDefaultStreamDescriptor()
{
if (this.defaultStreamDescriptor == null)
{
this.defaultStreamDescriptor = new StreamDescriptorData(this);
this.defaultStreamDescriptor.State = EntityStates.Unchanged;
}
}
/// <summary>
/// Updates the stream decriptor data with values from response headers
/// </summary>
/// <param name="streamDescriptorData">The descriptor data to update</param>
/// <param name="headers">The response headers</param>
public static void UpdateFromHeaders(this StreamDescriptorData streamDescriptorData, IDictionary <string, string> headers)
{
ExceptionUtilities.CheckArgumentNotNull(streamDescriptorData, "streamDescriptorData");
ExceptionUtilities.CheckArgumentNotNull(headers, "headers");
string etag;
headers.TryGetValue(HttpHeaders.ETag, out etag);
streamDescriptorData.SetETag(etag);
}
/// <summary>
/// Creates a new stream descriptor data and adds it to this entity descriptor data
/// </summary>
/// <param name="state">The state of the stream descriptor data</param>
/// <param name="changeOrder">The change order for the stream descriptor data</param>
/// <param name="name">The name of the stream</param>
/// <returns>The stream descriptor data</returns>
public StreamDescriptorData CreateStreamDescriptorData(EntityStates state, long changeOrder, string name)
{
ExceptionUtilities.CheckArgumentNotNull(name, "name");
ExceptionUtilities.Assert(!this.streamDescriptors.Any(s => s.Name == name), "Stream descriptor data with name '{0}' already exists on entity descriptor data: {1}", name, this);
var streamData = new StreamDescriptorData(this, name);
this.contextData.ChangeStateAndChangeOrder(streamData, state, changeOrder);
this.streamDescriptors.Add(streamData);
return(streamData);
}
/// <summary>
/// Tries to get the stream descriptor data with the given name for the given entity
/// </summary>
/// <param name="entity">The entity to get the stream descriptor for</param>
/// <param name="name">The name of the stream descriptor</param>
/// <param name="streamData">The stream descriptor data</param>
/// <returns>True if the stream descriptor data was found, otherwise false</returns>
public bool TryGetStreamDescriptorData(object entity, string name, out StreamDescriptorData streamData)
{
ExceptionUtilities.CheckArgumentNotNull(entity, "entity");
ExceptionUtilities.CheckArgumentNotNull(name, "name");
streamData = null;
EntityDescriptorData entityData;
if (!this.TryGetEntityDescriptorData(entity, out entityData))
{
streamData = null;
return false;
}
var found = entityData.StreamDescriptors.Where(n => n.Name == name).ToList();
ExceptionUtilities.Assert(found.Count <= 1, "Multiple stream descriptors found with name '{0}'. Entity = {1}", name, entityData);
if (found.Count < 1)
{
return false;
}
streamData = found[0];
return true;
}
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 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;
}
private void InitializeDefaultStreamDescriptor()
{
if (this.defaultStreamDescriptor == null)
{
this.defaultStreamDescriptor = new StreamDescriptorData(this);
this.defaultStreamDescriptor.State = EntityStates.Unchanged;
}
}
/// <summary>
/// Creates a new stream descriptor data and adds it to this entity descriptor data
/// </summary>
/// <param name="state">The state of the stream descriptor data</param>
/// <param name="changeOrder">The change order for the stream descriptor data</param>
/// <param name="name">The name of the stream</param>
/// <returns>The stream descriptor data</returns>
public StreamDescriptorData CreateStreamDescriptorData(EntityStates state, long changeOrder, string name)
{
ExceptionUtilities.CheckArgumentNotNull(name, "name");
ExceptionUtilities.Assert(!this.streamDescriptors.Any(s => s.Name == name), "Stream descriptor data with name '{0}' already exists on entity descriptor data: {1}", name, this);
var streamData = new StreamDescriptorData(this, name);
this.contextData.ChangeStateAndChangeOrder(streamData, state, changeOrder);
this.streamDescriptors.Add(streamData);
return streamData;
}
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;
}
}
/// <summary>
/// Clones the current stream descriptor data
/// </summary>
/// <param name="clonedEntityDescriptor">The entity descriptor that will contain the result of this clone</param>
/// <returns>A clone of the current stream descriptor data</returns>
public StreamDescriptorData Clone(EntityDescriptorData clonedEntityDescriptor)
{
var clone = new StreamDescriptorData(clonedEntityDescriptor, this.Name);
clone.State = this.State;
clone.ChangeOrder = this.ChangeOrder;
clone.ContentType = this.ContentType;
clone.ETag = this.ETag;
if (this.EditLink != null)
{
clone.EditLink = new Uri(this.EditLink.OriginalString, UriKind.RelativeOrAbsolute);
}
if (this.SelfLink != null)
{
clone.SelfLink = new Uri(this.SelfLink.OriginalString, UriKind.RelativeOrAbsolute);
}
if (this.SaveStream != null)
{
clone.SaveStream = this.SaveStream.Clone();
}
return clone;
}
