public XElement Execute(IEnumerable <KeyValuePair <string, string> > parameters, Uri baseUri)
{
XElement responseElement;
WebRequest request = HttpWebRequest.Create(BuildUri(baseUri, parameters));
try
{
using (WebResponse response = request.GetResponse())
{
using (XmlReader reader = XmlReader.Create(response.GetResponseStream()))
{
responseElement = XElement.Load(reader);
}
}
}
catch (WebException webException)
{
AmazonException serviceException;
if (AmazonException.TryCreate(webException, out serviceException))
{
throw serviceException;
}
throw;
}
return(responseElement);
}
public static bool TryCreate(WebException webException, out AmazonException amazonException)
{
if (webException.Response != null &&
webException.Response.ContentLength != 0)
{
using (XmlReader reader = XmlReader.Create(webException.Response.GetResponseStream()))
{
XElement response = XElement.Load(reader);
XElement code = response.Descendants().Where(e => e.Name.LocalName == "Code").FirstOrDefault();
XElement message = response.Descendants().Where(e => e.Name.LocalName == "Message").FirstOrDefault();
if (code != null && message != null)
{
amazonException = new AmazonException(message.Value, code.Value, webException);
return(true);
}
}
}
amazonException = null;
return(false);
}
public static bool TryCreate(WebException webException, out AmazonException amazonException)
{
if (webException.Response != null &&
webException.Response.ContentLength != 0)
{
using (XmlReader reader = XmlReader.Create(webException.Response.GetResponseStream()))
{
XElement response = XElement.Load(reader);
XElement code = response.Descendants().Where(e => e.Name.LocalName == "Code").FirstOrDefault();
XElement message = response.Descendants().Where(e => e.Name.LocalName == "Message").FirstOrDefault();
if (code != null && message != null)
{
amazonException = new AmazonException(message.Value, code.Value, webException);
return true;
}
}
}
amazonException = null;
return false;
}