/// <summary>
/// The get structure.
/// </summary>
/// <param name="structure">
/// The structure.
/// </param>
/// <param name="agencyId">
/// The agency id.
/// </param>
/// <param name="resourceId">
/// The resource id.
/// </param>
/// <param name="version">
/// The version.
/// </param>
/// <returns>
/// The <see cref="Message"/>.
/// </returns>
/// <exception cref="WebFaultException{T}">
/// Bad Request.
/// </exception>
public Message GetStructure(string structure, string agencyId, string resourceId, string version)
{
WebOperationContext ctx = WebOperationContext.Current;
if (!IsStructureValid(structure))
{
throw new WebFaultException <string>("Invalid structure: " + structure, HttpStatusCode.BadRequest);
}
try
{
return(this.ProcessRequest(structure, agencyId, resourceId, version, ctx));
}
catch (Exception e)
{
Logger.Error(e);
throw _builder.Build(e);
}
}
/// <summary>
/// Streams the structural metadata.
/// </summary>
/// <param name="schemaVersion">The schema version.</param>
/// <param name="stream">The stream.</param>
/// <param name="streamController">The stream controller.</param>
/// <param name="encoding">The response encoding.</param>
public static void StreamXml(SdmxSchema schemaVersion, Stream stream, IStreamController <XmlWriter> streamController, Encoding encoding)
{
try
{
if (schemaVersion.IsXmlFormat())
{
using (var writer = XmlWriter.Create(stream, new XmlWriterSettings {
Indent = true, Encoding = encoding
}))
{
var actions = new Queue <Action>();
streamController.StreamTo(writer, actions);
writer.Flush();
}
}
else
{
throw new SdmxNotImplementedException(string.Format(CultureInfo.InvariantCulture, "Not supported {0}", schemaVersion.ToEnglishString()));
}
}
catch (SdmxResponseSizeExceedsLimitException e)
{
// error is on payload.
_logger.Warn(e.Message, e);
}
catch (SdmxResponseTooLargeException e)
{
// error is on payload.
_logger.Warn(e.Message, e);
}
catch (Exception e)
{
_logger.Error(e.Message, e);
// HACK.
// The following is needed because for some reason WebOperationContext.CreateStreamResponse closes the connection and does not return a
// status code and/or error message to the user.
var normalizedException = _builder.Build(e);
//// Setting the WebOperationContext does not seem to work....
//// WebOperationContext.Current.OutgoingResponse.StatusCode = normalizedException.StatusCode;
try
{
HttpContext.Current.Response.StatusCode = (int)normalizedException.StatusCode;
}
catch (HttpException ex)
{
_logger.Error(e.Message, ex);
// Not much we can do. We already sent the header Throw the original exception.
throw e;
}
HttpContext.Current.Response.ContentType = "text/html;";
using (var streamWriter = new StreamWriter(stream))
{
streamWriter.WriteLine("{0} - {1}", normalizedException.Message, normalizedException.Detail);
streamWriter.Flush();
}
}
}
