private bool retryGet(netForumXMLSoapClient xWebClient, out XmlNode queryResults, string objectName, string columnList, string whereClause, string orderBy)
{
bool ret = false;
queryResults = null;
for (int i = 0; i < Config.XWebRetryAttemps; i++)
{
_log.Error("Retrying getQuery attempt#: " + i.ToString());
try
{
queryResults = xWebClient.GetQuery(ref _authToken, objectName, columnList, whereClause, orderBy);
if (queryResults != null)
{
return(true);
}
}
catch
{
//ignore exception and retry
}
Thread.Sleep(Config.XWebRetryWait);
}
return(ret);
}
private XmlNode getQuery(string objectName, string columnList, string whereClause, string orderBy, bool isRetry)
{
String logMethodName = ".getQuery(string objectName, string columnList, string whereClause, string orderBy, bool isRetry) - ";
_log.Debug(logMethodName + "Begin Method");
XmlNode queryResults = null;
netForumXMLSoapClient xWebClient = null;
try
{
_log.Debug(logMethodName + "Creating netForumXMLSoapClient.");
xWebClient = new netForumXMLSoapClient();
_log.Debug(logMethodName + "netForumXMLSoapClient Created Successfully");
logGetQuery(objectName, columnList, whereClause, orderBy, isRetry);
_log.Debug(logMethodName + "Calling netForumXMLSoapClient.GetQuery(ref ASA.Web.Services.Common.xWeb.AuthorizationToken AuthorizationToken, string szObjectName, string szColumnList, string szWhereClause, string szOrderBy)");
queryResults = xWebClient.GetQuery(ref _authToken, objectName, columnList, whereClause, orderBy);
_log.Debug(logMethodName + "xWebClient.GetQuery(...) completed");
}
catch (TimeoutException te)
{
_log.Error(logMethodName + "getQuery: TimeoutException on xWeb service call. make sure endpoint is reachable and configured correctly.", te);
if (!retryGet(xWebClient, out queryResults, objectName, columnList, whereClause, orderBy))
{
ProxyHelper.HandleServiceException(xWebClient);
throw te;
}
}
//we do not want to retry these. These are errors that will not be fixed by a retry, i.e. invalid credentials
//catch (FaultException fe)
//{
// _log.Error(logMethodName + "There has been an error for an xWeb GET operation: " + objectName, fe);
// throw fe;
//}
catch (CommunicationException ce)
{
_log.Error(logMethodName + "There has been an error attempting to communicate with XWeb, attempting retry (if enabled)", ce);
// This will cause the AuthorizationToken to be refreshed,
// and it will perform ONE retry call to xWeb to GetQuery() following this CommunicationException
if (isRetry == false && ce.Message.StartsWith("System.Web.Services.Protocols.SoapException: Failed"))
{
ProxyHelper.HandleServiceException(xWebClient);
_log.Info(logMethodName + "getQuery: Going to retry after getting a new Auth Token");
getNewAuthToken();
_log.Debug(logMethodName + "Calling netForumXMLSoapClient.GetQuery(ref ASA.Web.Services.Common.xWeb.AuthorizationToken AuthorizationToken, string szObjectName, string szColumnList, string szWhereClause, string szOrderBy)");
queryResults = getQuery(objectName, columnList, whereClause, orderBy, true);
_log.Debug(logMethodName + "xWebClient.GetQuery(...) completed");
}
else
{
_log.Warn(logMethodName + "getQuery: CommunicationException on xWeb service call. make sure endpoint is reachable and configured correctly... this may be due to Token expiration", ce);
if (!retryGet(xWebClient, out queryResults, objectName, columnList, whereClause, orderBy))
{
ProxyHelper.HandleServiceException(xWebClient);
throw ce;
}
}
}
finally
{
if (xWebClient.State != CommunicationState.Closed)
{
ProxyHelper.CloseChannel(xWebClient);
}
}
_log.Debug(logMethodName + "End Method");
return(queryResults);
}