private object[] InvokeWebMethod(string webMethodName, object[] parameters)
{
object[] results = null;
//
// The first (and only) parameter is the Uddi message we are about to send.
//
UddiCore uddiMessage = parameters[0] as UddiCore;
try
{
uddiMessage.SerializeMode = true;
results = Invoke(webMethodName, parameters);
}
catch (SoapException soapException)
{
//
// We have no meaningful results at this point.
//
results = null;
UddiException uddiException = new UddiException(soapException);
UddiVersion originalVersion = uddiVersion;
//
// If the exception is either a fatal error or a unrecognized version error, we will
// assume that the exception had something to do with a versioning problem. This is about
// the most reliable way to do this, since there is no standard way of reporting a version
// mismatch. If IterateOverVersions still does not return results, then we use the original
// exception and assume that that exception was indeed not version related.
//
if ((uddiException.Type == UddiException.ErrorType.E_unrecognizedVersion ||
uddiException.Type == UddiException.ErrorType.E_fatalError) &&
uddiVersion == UddiVersion.Negotiate)
{
results = InvokeForVersions(webMethodName, parameters, ref uddiException);
//
// Restore the original version. TODO: should we just keep this version as is?
//
uddiVersion = originalVersion;
}
if (null == results)
{
throw uddiException;
}
}
finally
{
uddiMessage.SerializeMode = false;
}
return(results);
}
private void AttemptRefreshAuthInfo(UddiException uddiException, AuthToken authToken)
{
if (UddiException.ErrorType.E_authTokenExpired == uddiException.Type &&
true == RefreshAuthToken)
{
authToken = Send(authToken.OriginatingAuthToken);
}
else
{
throw uddiException;
}
}
private object[] InvokeForVersions(string webMethodName, object[] parameters, ref UddiException returnException)
{
object[] results = null;
//
// Try to invoke this web method for each supported version
//
int numVersions = UddiVersionSupport.SupportedVersions.Length;
int index = 0;
while (index < numVersions && null == results)
{
try
{
UddiVersion versionToTry = UddiVersionSupport.SupportedVersions[index++];
//
// Don't repeat versions.
//
if (versionToTry != uddiVersion)
{
uddiVersion = versionToTry;
}
results = Invoke(webMethodName, parameters);
}
catch (UddiException uddiException)
{
returnException = uddiException;
}
catch (Exception exception)
{
returnException = new UddiException(exception);
}
}
return(results);
}