private static PolicyHelper GetDefaultPolicy(String url)
{
PolicyHelper p = new PolicyHelper();
p.lastUpdate = DateTime.MinValue;
p.policy = new TransactionalWebServicePolicy();
p.policy.AgentsEnabled = true;
p.policy.BuellerEnabled = true;
p.policy.PolicyType = policyType.Transactional;
p.policy.RecordedMessageCap = MAXCAP;
p.policy.RecordFaultsOnly = true;
p.policy.RecordHeaders = true;
p.policy.RecordRequestMessage = false;
p.policy.RecordResponseMessage = false;
p.policy.URL = url;
return p;
}
private static PolicyHelper FetchPolicy(string URL)
{
MessageProcessor m = MessageProcessor.Instance;
if (config.OperatingMode == ConfigLoader.OperationMode.OFFLINE)
return GetDefaultPolicy(URL);
PolicyHelper myPolicy = null;
//first lets check our policy cache, if we don't have one cached or it's out of date, update it.
lock (policyCache)
{
myPolicy = (PolicyHelper)policyCache[URL];
if (myPolicy == null)
{
switch (config.PCSalgo)
{
case ConfigLoader.Algorithm.FAILOVER:
for (int i = 0; i < config.pcsurl.Count; i++)
{
if (polservice != null)
{
try
{
((IClientChannel)polservice).Close();
((IClientChannel)polservice).Dispose();
}
catch (Exception ex)
{
//log.TraceEvent(TraceEventType.Warning, 0, "Uh oh" + ex.Message + ex.StackTrace);
}
}
polservice = config.GetPCSProxy(config.pcsurl[i]);
for (int k = 0; k < config.PCSretrycount; k++)
{
try
{
ServicePolicyRequestMsg requestr = new ServicePolicyRequestMsg();
//requestr = new ServicePolicyRequestMsg();
requestr.URI = URL;
//remember, .NET/IIS is not case sensitive
// ServicePolicyRequestMsg r = new ServicePolicyRequestMsg();
requestr.classification = currentlevel;
ServicePolicyResponseMsg responsep1 = polservice.GetServicePolicy(requestr);
PolicyHelper temp = new PolicyHelper();
temp.lastUpdate = DateTime.Now;
if (responsep1.policy.GetType() != typeof(TransactionalWebServicePolicy))
{
Logger.info("FGSMS.MessageProcessor" + "Successfully retrieved a policy from the policy configuration service, however it was of an unexpected type " + URL + " type info " + responsep1.policy.GetType().FullName);
throw new ArgumentOutOfRangeException();
}
temp.policy = (TransactionalWebServicePolicy)responsep1.policy;
MAXCAP = temp.policy.RecordedMessageCap;
Enabled = temp.policy.AgentsEnabled;
try
{
policyCache.Add(URL, temp);
}
catch (Exception e)
{
Logger.debug(e, "error caught adding " + URL + " to the policy cache");
}
currentlevel = responsep1.classification;
Logger.info("FGSMS.MessageProcessor" + "Successfully Refreshed policy from the policy configuration service for " + URL);
myPolicy = policyCache[URL] as PolicyHelper;
return myPolicy;
}
//{"There was no endpoint listening at http://localhost:8080/FGSMSServices/PCS that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details."}
catch (EndpointNotFoundException ex)
{
_lasterror = ex.GetType().FullName + " " + ex.Message;
Logger.info(ex, "FGSMS.MessageProcessor" + "unable to transmit to " + config.pcsurl[i]);
//this means that the current PCS url is not functioning, try moving to the next one
//polservice = config.GetPCSProxy();
}
catch (Exception ex)
{
Logger.info(ex, "FGSMS.MessageProcessor" + "unable to transmit to " + config.pcsurl[i] + " Policy Updater - failed to policy from the policy configuration service for " + URL + " check that the URL and credentials are correct");
}
}
}
break;
case ConfigLoader.Algorithm.ROUNDROBIN:
for (int k = 0; k < config.PCSretrycount; k++)
{
for (int i = 0; i < config.pcsurl.Count; i++)
{
try
{
if (polservice != null)
{
try
{
((IClientChannel)polservice).Close();
((IClientChannel)polservice).Dispose();
}
catch (Exception ex)
{
// log.TraceEvent(TraceEventType.Warning, 0, "Uh oh" + ex.Message + ex.StackTrace);
}
}
polservice = config.GetPCSProxy(config.pcsurl[i]);
ServicePolicyRequestMsg requestr = new ServicePolicyRequestMsg();
//requestr = new ServicePolicyRequestMsg();
requestr.URI = URL;
//remember, .NET/IIS is not case sensitive
// GetServicePolicyRequest r = new GetServicePolicyRequest();
// r.request = requestr;
requestr.classification = currentlevel;
ServicePolicyResponseMsg responsep1 = polservice.GetServicePolicy(requestr);
PolicyHelper temp = new PolicyHelper();
temp.lastUpdate = DateTime.Now;
if (responsep1.policy.GetType() != typeof(TransactionalWebServicePolicy))
{
Logger.info("FGSMS.MessageProcessor" + "Successfully retrieved a policy from the policy configuration service, however it was of an unexpected type " + URL + " type info " + responsep1.policy.GetType().FullName);
throw new ArgumentOutOfRangeException();
}
temp.policy = (TransactionalWebServicePolicy)responsep1.policy;
MAXCAP = temp.policy.RecordedMessageCap;
Enabled = temp.policy.AgentsEnabled;
try
{
policyCache.Add(URL, temp);
}
catch (Exception e)
{
Logger.debug(e, "error caught adding " + URL + " to the policy cache");
//its possible that there is another instance of this class running, even through there isn't supposed to be.
}
currentlevel = responsep1.classification;
Logger.info("FGSMS.MessageProcessor" + "Successfully Refreshed policy from the policy configuration service for " + URL);
myPolicy = policyCache[URL] as PolicyHelper;
return myPolicy;
}
//{"There was no endpoint listening at http://localhost:8080/FGSMSServices/PCS that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details."}
catch (EndpointNotFoundException ex)
{
_lasterror = ex.GetType().FullName + " " + ex.Message;
//this means that the current PCS url is not function, try moving to the next one
//polservice = config.GetPCSProxy();
Logger.info(ex, "FGSMS.MessageProcessor" + "unable to transmit to " + config.pcsurl[i]);
}
catch (Exception ex)
{
Logger.info(ex, "FGSMS.MessageProcessor" + "unable to transmit to " + config.pcsurl[i] + " Policy Updater - failed to policy from the policy configuration service for " + URL + " check that the URL and credentials are correct");
}
}
}
break;
}
if (myPolicy == null)
{
Logger.error("FGSMS.MessageProcessor" + "Cannot contact the policy config service. Reverting to default policy. ");
return GetDefaultPolicy(URL);
}
}
}
TimeSpan times = XmlConvert.ToTimeSpan(myPolicy.policy.PolicyRefreshRate);
if ((DateTime.Now.Ticks - myPolicy.lastUpdate.Ticks) > times.Ticks)
{
//TODO load balance this
//if the policy is out of date, update it.
try
{
//policyConfigurationServiceClient service = new policyConfigurationServiceClient();
ServicePolicyRequestMsg requestr = new ServicePolicyRequestMsg();
requestr.URI = URL;
//ServicePolicyRequest r = new GetServicePolicyRequest();
//r.request = requestr;
requestr.classification = currentlevel;
ServicePolicyResponseMsg responsep = polservice.GetServicePolicy(requestr);
policyCache.Remove(URL);
PolicyHelper temp = new PolicyHelper();
if (responsep.policy.GetType() != typeof(TransactionalWebServicePolicy))
{
Logger.info("FGSMS.MessageProcessor" + "Successfully retrieved a policy from the policy configuration service, however it was of an unexpected type " + URL + " type info " + responsep.policy.GetType().FullName);
throw new ArgumentOutOfRangeException();
}
temp.policy = (TransactionalWebServicePolicy)responsep.policy;
temp.lastUpdate = DateTime.Now;
currentlevel = responsep.classification;
try
{
policyCache.Add(URL, temp);
}
catch (Exception e)
{
Logger.debug(e, "error caught adding " + URL + " to the policy cache");
}
Logger.info("Policy Updater- Successfully Refreshed policy from the policy configuration service for " + URL.ToString());
return temp;
}
catch (Exception ex)
{
Logger.warn(ex, "Policy update failure, unable to update policy for " + URL + ". Using old policy instead. Error:");
}
}
return myPolicy;
}
