/// <summary>
/// Create message writer settings for producing requests.
/// </summary>
/// <param name="isBatchPartRequest">if set to <c>true</c> indicates that this is a part of a batch request.</param>
/// <param name="enableAtom">Whether to enable ATOM.</param>
/// <returns>Newly created message writer settings.</returns>
internal ODataMessageWriterSettings CreateSettings(bool isBatchPartRequest, bool enableAtom)
{
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings
{
CheckCharacters = false,
Indent = false,
// For operations inside batch, we need to dispose the stream. For top level requests,
// we do not need to dispose the stream. Since for inner batch requests, the request
// message is an internal implementation of IODataRequestMessage in ODataLib,
// we can do this here.
DisableMessageStreamDisposal = !isBatchPartRequest
};
#if !WINRT
if (enableAtom)
{
// Enable ATOM for client
writerSettings.EnableAtomSupport();
}
#endif
CommonUtil.SetDefaultMessageQuotas(writerSettings.MessageQuotas);
// Enable the Astoria client behavior in ODataLib.
writerSettings.EnableWcfDataServicesClientBehavior();
this.requestInfo.Configurations.RequestPipeline.ExecuteWriterSettingsConfiguration(writerSettings);
return(writerSettings);
}
/// <summary>
/// Determines the response format based on the results of content negotiation.
/// </summary>
/// <param name="payloadKind">The payload kind of the response.</param>
/// <param name="acceptableMediaTypes">
/// The acceptable media types used to determine the content type of the message.
/// This is a comma separated list of content types as specified in RFC 2616, Section 14.1
/// </param>
/// <param name="acceptableCharSets">
/// The acceptable charsets to use to the determine the encoding of the message.
/// This is a comma separated list of charsets as specified in RFC 2616, Section 14.2
/// </param>
/// <returns>The format the response should use. </returns>
internal ODataFormatWithParameters DetermineResponseFormat(ODataPayloadKind payloadKind, string acceptableMediaTypes, string acceptableCharSets)
{
Debug.Assert(payloadKind != ODataPayloadKind.Unsupported, "kind != ODataPayloadKind.Unsupported");
ContentNegotiationResponseMessage responseMessage = new ContentNegotiationResponseMessage();
ODataMessageWriterSettings settings = new ODataMessageWriterSettings {
Version = this.responseVersion
};
settings.EnableAtomSupport();
settings.SetContentType(acceptableMediaTypes, acceptableCharSets);
try
{
using (ODataMessageWriter writer = new ODataMessageWriter(responseMessage, settings))
{
ODataFormat format = ODataUtils.SetHeadersForPayload(writer, payloadKind);
return(new ODataFormatWithParameters(format, responseMessage.ContentType));
}
}
catch (ODataContentTypeException exception)
{
if (this.throwIfNoMatch)
{
throw new DataServiceException(415, null, Microsoft.OData.Service.Strings.DataServiceException_UnsupportedMediaType, null, exception);
}
return(null);
}
}
/// <summary>
/// Creates a new message writer settings instance.
/// </summary>
/// <returns>A new settings instance.</returns>
internal static ODataMessageWriterSettings CreateMessageWriterSettings()
{
var writerSettings = new ODataMessageWriterSettings {
Indent = false, CheckCharacters = false
};
writerSettings.EnableAtomSupport();
CommonUtil.SetDefaultMessageQuotas(writerSettings.MessageQuotas);
return(writerSettings);
}