/// <summary>
/// Initializes a new instance of the <see cref="MediaServicesClassFactory" /> class.
/// </summary>
/// <param name="azureMediaServicesEndpoint">The Windows Azure Media Services endpoint to use.</param>
/// <param name="dataServiceAdapter">The data service adapter.</param>
/// <param name="serviceVersionAdapter">The service version adapter.</param>
/// <param name="mediaContext">The <seealso cref="CloudMediaContext" /> instance.</param>
/// <param name="userAgentAdapter">The user agent request adapter</param>
public AzureMediaServicesClassFactory(Uri azureMediaServicesEndpoint, OAuthDataServiceAdapter dataServiceAdapter, ServiceVersionAdapter serviceVersionAdapter, MediaContextBase mediaContext, UserAgentAdapter userAgentAdapter)
{
this._dataServiceAdapter = dataServiceAdapter;
this._serviceVersionAdapter = serviceVersionAdapter;
this._mediaContext = mediaContext;
_userAgentAdapter = userAgentAdapter;
var clientRequestIdAdapter = new ClientRequestIdAdapter();
string cacheKey = string.Format(
"{0},{1}",
mediaContext.Credentials.ClientId,
azureMediaServicesEndpoint.ToString());
this._azureMediaServicesEndpoint = _endpointCache.GetOrAdd(
cacheKey,
() => GetAccountApiEndpoint(this._dataServiceAdapter, this._serviceVersionAdapter, azureMediaServicesEndpoint, userAgentAdapter, clientRequestIdAdapter),
() => mediaContext.Credentials.TokenExpiration);
}
public void ClientRequestIdPresentInWebRequestAndValidGuid()
{
var mock = new MockRepository(MockBehavior.Loose);
var request = mock.Create <HttpWebRequest>();
var headers = new WebHeaderCollection();
request.SetupProperty(c => c.Headers, headers);
ClientRequestIdAdapter adapter = new ClientRequestIdAdapter();
adapter.AddClientRequestId(request.Object);
Assert.AreEqual(1, request.Object.Headers.Count);
string xMsClientRequestId = "x-ms-client-request-id";
Assert.IsNotNull(request.Object.Headers[xMsClientRequestId]);
Guid guid;
Assert.IsTrue(Guid.TryParse(request.Object.Headers[xMsClientRequestId], out guid));
}
/// <summary>
/// Creates a data service context.
/// </summary>
/// <returns>The new DataServiceContext instance.</returns>
public override IMediaDataServiceContext CreateDataServiceContext()
{
DataServiceContext dataContext = new DataServiceContext(_azureMediaServicesEndpoint, DataServiceProtocolVersion.V3)
{
IgnoreMissingProperties = true,
IgnoreResourceNotFoundException = true,
MergeOption = MergeOption.PreserveChanges,
};
var clientRequestIdAdapter = new ClientRequestIdAdapter();
this._dataServiceAdapter.Adapt(dataContext);
this._serviceVersionAdapter.Adapt(dataContext);
this._userAgentAdapter.Adapt(dataContext);
clientRequestIdAdapter.Adapt(dataContext);
dataContext.ReadingEntity += this.OnReadingEntity;
var queryRetryPolicy = GetQueryRetryPolicy(null);
var context = new MediaDataServiceContext(dataContext, queryRetryPolicy, clientRequestIdAdapter);
queryRetryPolicy.RetryPolicyAdapter = context;
return(context);
}
/// <summary>
/// Creates instance of <see cref="IMediaDataServiceContext"/> with contains additional applyed <see cref="IDataServiceContextAdapter"/> adapters
/// </summary>
/// <param name="adapters"></param>
/// <returns><see cref="IMediaDataServiceContext"/></returns>
public override IMediaDataServiceContext CreateDataServiceContext(IEnumerable <IDataServiceContextAdapter> adapters)
{
DataServiceContext dataContext = new DataServiceContext(_azureMediaServicesEndpoint, DataServiceProtocolVersion.V3)
{
IgnoreMissingProperties = true,
IgnoreResourceNotFoundException = true,
MergeOption = MergeOption.PreserveChanges,
};
List <IDataServiceContextAdapter> dataServiceContextAdapters = GetDefaultDataContextAdapters().ToList();
dataServiceContextAdapters.AddRange(adapters.ToList());
dataServiceContextAdapters.ForEach(c => c.Adapt(dataContext));
ClientRequestIdAdapter clientRequestIdAdapter = dataServiceContextAdapters.FirstOrDefault(c => c is ClientRequestIdAdapter) as ClientRequestIdAdapter;
dataContext.ReadingEntity += OnReadingEntity;
var queryRetryPolicy = GetQueryRetryPolicy(null);
var context = new MediaDataServiceContext(dataContext, queryRetryPolicy, clientRequestIdAdapter);
queryRetryPolicy.RetryPolicyAdapter = context;
return(context);
}
private Uri GetAccountApiEndpoint(OAuthDataServiceAdapter dataServiceAdapter, ServiceVersionAdapter versionAdapter, Uri apiServer, UserAgentAdapter userAgentAdapter, ClientRequestIdAdapter clientRequestIdAdapter)
{
MediaRetryPolicy retryPolicy = new MediaRetryPolicy(
GetWebRequestTransientErrorDetectionStrategy(),
RetryStrategyFactory.DefaultStrategy());
Uri apiEndpoint = null;
retryPolicy.ExecuteAction(
() =>
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(apiServer);
request.AllowAutoRedirect = false;
dataServiceAdapter.AddAccessTokenToRequest(request);
versionAdapter.AddVersionToRequest(request);
userAgentAdapter.AddUserAgentToRequest(request);
clientRequestIdAdapter.AddClientRequestId(request);
using (WebResponse response = request.GetResponse())
{
apiEndpoint = GetAccountApiEndpointFromResponse(response);
}
}
);
return(apiEndpoint);
}
/// <summary>
/// Returns IEnumerable of type <see cref="IDataServiceContextAdapter"/> which applied by default for each request
/// </summary>
/// <returns></returns>
public override IEnumerable <IDataServiceContextAdapter> GetDefaultDataContextAdapters()
{
var clientRequestIdAdapter = new ClientRequestIdAdapter();
return(new IDataServiceContextAdapter[] { _dataServiceAdapter, _serviceVersionAdapter, _userAgentAdapter, clientRequestIdAdapter });
}
public MediaDataServiceContext(DataServiceContext dataContext, MediaRetryPolicy queryRetryPolicy, ClientRequestIdAdapter clientRequestAdapter)
{
_dataContext = dataContext;
_queryRetryPolicy = queryRetryPolicy;
_clientRequestIdAdapter = clientRequestAdapter;
}
