private static void SetContentTypeForAdapterMessage(HttpRequestAdapterMessage adapterMsg, TablePayloadFormat payloadFormat)
{
if (payloadFormat == TablePayloadFormat.AtomPub)
{
adapterMsg.SetHeader(Constants.HeaderConstants.PayloadContentTypeHeader, Constants.AtomContentTypeHeaderValue);
}
else
{
adapterMsg.SetHeader(Constants.HeaderConstants.PayloadContentTypeHeader, Constants.JsonContentTypeHeaderValue);
}
}
internal static StorageRequestMessage BuildRequestForTableOperation <T>(RESTCommand <T> cmd, Uri uri, UriQueryBuilder builder, int?timeout, TableOperation operation, CloudTableClient client, HttpContent content, OperationContext ctx, TablePayloadFormat payloadFormat, ICanonicalizer canonicalizer, StorageCredentials credentials)
{
StorageRequestMessage msg = BuildRequestCore(uri, builder, operation.HttpMethod, timeout, content, ctx, canonicalizer, credentials);
// Set Accept and Content-Type based on the payload format.
SetAcceptHeaderForHttpWebRequest(msg, payloadFormat);
Logger.LogInformational(ctx, SR.PayloadFormat, payloadFormat);
if (!operation.HttpMethod.Equals("HEAD") && !operation.HttpMethod.Equals("GET"))
{
SetContentTypeForHttpWebRequest(msg);
}
if (operation.OperationType == TableOperationType.InsertOrMerge || operation.OperationType == TableOperationType.Merge)
{
// post tunnelling
msg.Headers.Add("X-HTTP-Method", "MERGE");
}
// etag
if (operation.OperationType == TableOperationType.Delete ||
operation.OperationType == TableOperationType.Replace ||
operation.OperationType == TableOperationType.Merge)
{
msg.Headers.Add("If-Match", operation.Entity.ETag);
}
// Prefer header
if (operation.OperationType == TableOperationType.Insert)
{
msg.Headers.Add("Prefer", operation.EchoContent ? "return-content" : "return-no-content");
}
if (operation.OperationType == TableOperationType.Insert ||
operation.OperationType == TableOperationType.Merge ||
operation.OperationType == TableOperationType.InsertOrMerge ||
operation.OperationType == TableOperationType.InsertOrReplace ||
operation.OperationType == TableOperationType.Replace)
{
// create the writer, indent for readability of the examples.
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
CheckCharacters = false, // sets this flag on the XmlWriter for ATOM
Version = TableConstants.ODataProtocolVersion // set the Odata version to use when writing the entry
};
HttpRequestAdapterMessage adapterMsg = new HttpRequestAdapterMessage(msg, client.BufferManager, (int)Constants.KB);
if (!operation.HttpMethod.Equals("HEAD") && !operation.HttpMethod.Equals("GET"))
{
adapterMsg.SetHeader(Constants.HeaderConstants.PayloadContentTypeHeader, Constants.JsonContentTypeHeaderValue);
}
cmd.StreamToDispose = adapterMsg.GetStream();
ODataMessageWriter odataWriter = new ODataMessageWriter(adapterMsg, writerSettings, new TableStorageModel(client.AccountName));
ODataWriter writer = odataWriter.CreateODataEntryWriter();
WriteOdataEntity(operation.Entity, operation.OperationType, ctx, writer);
return(adapterMsg.GetPopulatedMessage());
}
return(msg);
}
