private void populateFromMWSException(MwsException e)
{
if (e.StatusCode != null)
{
this.statusCode = (int)e.StatusCode;
}
if (e.Message != null)
{
this.message = e.Message;
}
if (e.errorCode != null)
{
this.errorCode = e.ErrorCode;
}
if (e.errorType != null)
{
this.errorType = e.ErrorType;
}
if (e.detail != null)
{
this.detail = e.Detail;
}
if (e.xml != null)
{
this.xml = e.XML;
}
if (e.ResponseHeaderMetadata != null)
{
this.rhmd = e.ResponseHeaderMetadata;
}
}
/// <summary>
/// Initialize and set cause from another exception.
/// <para>
/// If cause is an MwsException, copies exception's attributes to this
/// one, ignoring the statusCode and message parameters that were passed in.
/// </para>
/// </summary>
/// <param name="statusCode">HTTP status code for error response.</param>
/// <param name="message">Error message from HTTP header.</param>
/// <param name="cause">Inner exception.</param>
////
public MwsException(int statusCode, string message, Exception cause)
: base(message, cause)
{
if (cause is MwsException)
{
MwsException e = (MwsException)cause;
this.statusCode = (int)e.StatusCode;
this.message = e.Message;
this.errorCode = e.ErrorCode;
this.errorType = e.ErrorType;
this.detail = e.Detail;
this.xml = e.XML;
this.rhmd = e.ResponseHeaderMetadata;
}
else
{
this.statusCode = statusCode;
this.message = message;
}
}
private void populateFromMWSException( MwsException e )
{
if (e.StatusCode != null) this.statusCode = (int)e.StatusCode;
if (e.Message != null) this.message = e.Message;
if (e.errorCode != null) this.errorCode = e.ErrorCode;
if (e.errorType != null) this.errorType = e.ErrorType;
if (e.detail != null) this.detail = e.Detail;
if (e.xml != null) this.xml = e.XML;
if (e.ResponseHeaderMetadata != null) this.rhmd = e.ResponseHeaderMetadata;
}
/// <summary>
/// Creates a request and invokes it
/// </summary>
/// <returns></returns>
/// <exception cref="MwsException">Exceptions from invoking the request</exception>
public IMwsReader invoke()
{
string responseBody;
string message;
HttpStatusCode statusCode = default(HttpStatusCode);
/* Add required request parameters */
AddRequiredParameters();
string queryString = GetParametersAsString(parameters);
int retries = 0;
do
{
/* Submit the request and read response body */
try
{
request = connection.GetHttpClient(serviceEndPoint.URI);
byte[] requestData = new UTF8Encoding().GetBytes(queryString);
request.ContentLength = requestData.Length;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(requestData, 0, requestData.Length);
}
using (HttpWebResponse httpResponse = request.GetResponse() as HttpWebResponse)
{
statusCode = httpResponse.StatusCode;
message = httpResponse.StatusDescription;
ResponseHeaderMetadata = GetResponseHeaderMetadata(httpResponse);
StreamReader reader = new StreamReader(httpResponse.GetResponseStream(), Encoding.UTF8);
responseBody = reader.ReadToEnd();
}
if (statusCode == HttpStatusCode.OK)
{
return(new MwsXmlReader(responseBody));
}
MwsException e = new MwsException((int)statusCode, message, null, null, responseBody, ResponseHeaderMetadata);
if (statusCode == HttpStatusCode.InternalServerError)
{
if (PauseIfRetryNeeded(retries++))
{
continue;
}
}
throw e;
}
/* Web exception is thrown on unsuccessful responses */
catch (WebException we)
{
using (HttpWebResponse httpErrorResponse = (HttpWebResponse)we.Response as HttpWebResponse)
{
if (httpErrorResponse == null)
{
throw new MwsException(we);
}
statusCode = httpErrorResponse.StatusCode;
using (StreamReader reader = new StreamReader(httpErrorResponse.GetResponseStream(), Encoding.UTF8))
{
responseBody = reader.ReadToEnd();
}
}
//retry logic
if (PauseIfRetryNeeded(retries++))
{
continue;
}
throw new MwsException((int)statusCode, null, null, null, responseBody, null);
}
/* Catch other exceptions, attempt to convert to formatted exception,
* else rethrow wrapped exception */
catch (Exception e)
{
throw new MwsException(e);
}
} while (true);
}