public string UpdateDataToOData(Change[] changes, string tableName, string[] headers)
{
HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, new Uri(this.odataEndpointURL, "$batch"));
requestMessage.Headers.Add("DataServiceVersion", this.odataVersion);
requestMessage.Headers.Add("MaxDataServiceVersion", this.odataMaxVersion);
var setting = new ODataMessageWriterSettings();
setting.SetContentType(ODataFormat.Batch);
setting.BaseUri = this.odataEndpointURL;
var odataHttpRequest = new ODataHttpRequest(requestMessage);
var messageWriter = new ODataMessageWriter(odataHttpRequest, setting, this.metadata);
var batchWriter = messageWriter.CreateODataBatchWriter();
batchWriter.WriteStartBatch();
for (int i = 0; i < changes.Length; i++)
{
batchWriter.WriteStartChangeset();
if (changes[i].operation == "DELETE")
{
createDeleteOperationRequestMessage(ref batchWriter, changes[i], tableName);
}
if (changes[i].operation == "UPDATE")
{
createUpdateOperationRequestMessage(ref batchWriter, changes[i], tableName, headers);
}
batchWriter.WriteEndChangeset();
}
batchWriter.WriteEndBatch();
batchWriter.Flush();
odataHttpRequest.GetStream().Seek(0, SeekOrigin.Begin);
HttpResponseMessage result = new HttpResponseMessage();
using (HttpClient client = new HttpClient())
{
result = client.SendAsync(requestMessage).Result;
}
return parseResponseMessage(result);
}
private void createDeleteOperationRequestMessage(ref ODataBatchWriter writer, Change change, string tableName)
{
string id = this.getKeyType(tableName).IsString() ? "'" + change.id + "'" : change.id;
Uri uri = new Uri(tableName + "(" + id + ")", UriKind.Relative);
writer.CreateOperationRequestMessage("DELETE", uri);
}
private void createUpdateOperationRequestMessage(ref ODataBatchWriter writer, Change change, string tableName, string[] headers)
{
string id = this.getKeyType(tableName).IsString() ? "'" + change.id + "'" : change.id;
Uri uri = new Uri(tableName + "(" + id + ")", UriKind.Relative);
var updateOperaitonMessage = writer.CreateOperationRequestMessage("PATCH", uri);
updateOperaitonMessage.SetHeader("Content-Type", "application/json");
using (var operationMessageWriter = new ODataMessageWriter(updateOperaitonMessage))
{
var entityWriter = operationMessageWriter.CreateODataEntryWriter();
var entry = new ODataEntry()
{
Properties = createOperationProperties(change.data, tableName, headers),
TypeName = this.GetEntityTypeName(tableName)
};
entityWriter.WriteStart(entry);
entityWriter.WriteEnd();
}
}
public static string UpdateDataToOData(Change[] chanegs, string tableName, string[] headers)
{
return odataHelper.UpdateDataToOData(chanegs, tableName, headers);
}