/// <summary>
/// Returns an instance of the IODataRequestMessage
/// </summary>
/// <param name="requestMessageArgs">Arguments for creating the request message.</param>
/// <returns>an instance of the IODataRequestMessage </returns>
internal DataServiceClientRequestMessage CreateRequestMessage(BuildingRequestEventArgs requestMessageArgs)
{
var headersDictionary = requestMessageArgs.HeaderCollection.UnderlyingDictionary;
// We are implementing the PostTunneling logic here. The reason for doing this is
// 1> In this public class, the Method property returns the actual method (PUT, MERGE, DELETE),
// and not the verb that goes in the wire. So this class needs to know about
// actual verb since it will be using this verb to send over http.
if (this.UsePostTunneling)
{
bool setXHttpMethodHeader = false;
if (string.CompareOrdinal(XmlConstants.HttpMethodGet, requestMessageArgs.Method) != 0 &&
string.CompareOrdinal(XmlConstants.HttpMethodPost, requestMessageArgs.Method) != 0)
{
setXHttpMethodHeader = true;
}
// Setting the actual method in the header
if (setXHttpMethodHeader)
{
headersDictionary[XmlConstants.HttpXMethod] = requestMessageArgs.Method;
}
// Set the Content-length of a Delete to 0. Important for post tunneling when its a post, content-length must be zero in this case.
if (string.CompareOrdinal(XmlConstants.HttpMethodDelete, requestMessageArgs.Method) == 0)
{
headersDictionary[XmlConstants.HttpContentLength] = "0";
#if DEBUG
if (!this.UserModifiedRequestInBuildingRequest)
{
Debug.Assert(!requestMessageArgs.HeaderCollection.HasHeader(XmlConstants.HttpContentType), "Content-Type header must not be set for DELETE requests");
}
#endif
}
}
#if !ASTORIA_LIGHT
var clientRequestMessageArgs = new DataServiceClientRequestMessageArgs(requestMessageArgs.Method, requestMessageArgs.RequestUri, this.UseDefaultCredentials, this.UsePostTunneling, headersDictionary);
#else
var clientRequestMessageArgs = new DataServiceClientRequestMessageArgs(requestMessageArgs.Method, requestMessageArgs.RequestUri, this.UsePostTunneling, this.UseDefaultCredentials, headersDictionary, requestMessageArgs.ClientHttpStack);
#endif
DataServiceClientRequestMessage clientRequestMessage;
if (this.Configurations.RequestPipeline.OnMessageCreating != null)
{
clientRequestMessage = this.Configurations.RequestPipeline.OnMessageCreating(clientRequestMessageArgs);
if (clientRequestMessage == null)
{
throw Error.InvalidOperation(Strings.Context_OnMessageCreatingReturningNull);
}
}
else
{
clientRequestMessage = new HttpWebRequestMessage(clientRequestMessageArgs, this);
}
return(clientRequestMessage);
}
/// <summary>
/// Create a request message for a non-batch requests and outer $batch request. This method copies request headers
/// from <paramref name="requestMessageArgs"/> in addition to the method and Uri.
/// </summary>
/// <param name="requestMessageArgs">RequestMessageArgs for the request.</param>
/// <param name="requestInfo">RequestInfo instance.</param>
/// <returns>an instance of ODataRequestMessageWrapper.</returns>
internal static ODataRequestMessageWrapper CreateRequestMessageWrapper(BuildingRequestEventArgs requestMessageArgs, RequestInfo requestInfo)
{
Debug.Assert(requestMessageArgs != null, "requestMessageArgs != null");
var requestMessage = requestInfo.CreateRequestMessage(requestMessageArgs);
if (null != requestInfo.Credentials)
{
requestMessage.Credentials = requestInfo.Credentials;
}
#if !ASTORIA_LIGHT && !PORTABLELIB // Timeout not available
if (0 != requestInfo.Timeout)
{
requestMessage.Timeout = requestInfo.Timeout;
}
#endif
return(new TopLevelRequestMessageWrapper(requestMessage, requestInfo, requestMessageArgs.Descriptor));
}
/// <summary>
/// Create a request message for a batch part from the batch writer. This method copies request headers
/// from <paramref name="requestMessageArgs"/> in addition to the method and Uri.
/// </summary>
/// <param name="batchWriter">ODataBatchWriter instance to build operation message from.</param>
/// <param name="requestMessageArgs">RequestMessageArgs for the request.</param>
/// <param name="requestInfo">RequestInfo instance.</param>
/// <returns>an instance of ODataRequestMessageWrapper.</returns>
internal static ODataRequestMessageWrapper CreateBatchPartRequestMessage(
ODataBatchWriter batchWriter,
BuildingRequestEventArgs requestMessageArgs,
RequestInfo requestInfo)
{
IODataRequestMessage requestMessage = batchWriter.CreateOperationRequestMessage(requestMessageArgs.Method, requestMessageArgs.RequestUri);
#if WINDOWS_PHONE
if (requestInfo.HasWritingRequestEventHandlers)
{
// We use the InternalODataRequestMessage constructor here beecause we want to allow the user to be able to access the underlying request stream.
requestMessage = new InternalODataRequestMessage(requestMessage, true);
}
#endif
foreach (var h in requestMessageArgs.Headers)
{
requestMessage.SetHeader(h.Key, h.Value);
}
var clientRequestMessage = new InternalODataRequestMessage(requestMessage, false /*allowGetStream*/);
ODataRequestMessageWrapper messageWrapper = new InnerBatchRequestMessageWrapper(clientRequestMessage, requestMessage, requestInfo, requestMessageArgs.Descriptor);
return(messageWrapper);
}
/// <summary>
/// Creates a request message with the given arguments.
/// </summary>
/// <param name="requestMessageArgs">The request message args.</param>
/// <returns>Newly created request message.</returns>
internal ODataRequestMessageWrapper CreateRequestMessage(BuildingRequestEventArgs requestMessageArgs)
{
return(ODataRequestMessageWrapper.CreateRequestMessageWrapper(requestMessageArgs, this.requestInfo));
}