//Other general information
/// <summary>
/// Read the first error description from the document, or the "error_srcText" in case of a "runtime_error" document
/// </summary>
public string GetFirstErrorDescr()
{
if (hasError)
{
return(doc.GetStringValue("//ERROR/DESCRIPTION/text()"));
}
else if (hasRuntimeError)
{
return(doc.GetStringValue("/runtime_error/error_srcText/text()"));
}
else
{
return(null);
}
}
/// <summary>
/// Checks for unpleasant HTTP status codes as well as other problems with the response.
/// All errors found here are fatal: they break the chain of async processes.
/// </summary>
/// <param name="content">HttpContent for Posting to TNT</param>
/// <param name="expectXml">Do we expect the response to be XML?</param>
private async Task <PostResults> PostAsync(HttpContent content, bool expectXml)
{
HttpResponseMessage resp = null;
try
{
resp = await client.PostAsync(new Uri(TARGET_URL), content);
}
catch (Exception e)
{
FirePostError(0, "PostAsync Exception: " + e.Message);
throw e; //just to stop the flow
}
if (!resp.IsSuccessStatusCode)
{
FirePostError(0, "HTTP error status " + resp.StatusCode + ": " + resp.ReasonPhrase);
throw new InvalidOperationException("HTTP error status " + resp.StatusCode + ": " + resp.ReasonPhrase);
}
//xml checks
if (expectXml)
{
MyXMLDocument xdoc = null;
Stream st = await resp.Content.ReadAsStreamAsync();
try
{
TextReader rd = new StreamReader(st, new UTF8Encoding(false, true));
XmlReader XReader = XmlReader.Create(rd);
xdoc = new MyXMLDocument(XReader, readOnly: true);
if (
xdoc.NodeExists("/runtime_error") ||
xdoc.NodeExists("/parse_error")
)
{
string errormsg = xdoc.GetStringValue("//error_reason/text()");
FirePostError(0, "Errormessage sent by TNT: " + errormsg);
throw new InvalidOperationException("Errormessage sent by TNT: " + errormsg);
}
}
catch (Exception e)
{
FirePostError(0, "Problem parsing xml " + e.Message);
throw e;
}
return(new PostResults(null, xdoc));
}
else
{
string c = await resp.Content.ReadAsStringAsync();
return(new PostResults(c, null));
}
}
//Methods to read the current Consigment from the doc
/// <summary>
/// Get a Consignment property from either CREATE or SHIP
/// Note: We could even require that they are equal in both, or we could require SHIP and disregard CREATE
/// </summary>
/// <param name="prop">the property to get</param>
private string GetConProp(ConsignmentProps prop)
{
if (hasShip)
{
return(curShip.GetStringValue("./" + prop.ToString() + "/text()"));
}
else if (hasCreate)
{
return(curCreate.GetStringValue("./" + prop.ToString() + "/text()"));
}
else
{
return(null);
}
}