private void RefreshActivationProxy(EndpointAddress suggestedAddress)
{
EndpointAddress address = suggestedAddress;
if (address == null)
{
address = this.wsatConfig.LocalActivationService(this.protocolVersion);
if (address == null)
{
address = this.wsatConfig.RemoteActivationService(this.protocolVersion);
}
}
if (address == null)
{
DiagnosticUtility.FailFast("Must have valid activation service address");
}
lock (this.proxyLock)
{
ActivationProxy proxy = this.CreateActivationProxy(address);
if (this.activationProxy != null)
{
this.activationProxy.Release();
}
this.activationProxy = proxy;
}
}
//=============================================================================================
// The demand is not added now (in 4.5), to avoid a breaking change. To be considered in the next version.
/*
* // We demand full trust because we call ActivationProxy.Release(), which is defined in a non-APTCA assembly and can do Environment.FailFast.
* // It's recommended to not let partially trusted callers to bring down the process.
* // WSATs are not supported in partial trust, so customers should not be broken by this demand.
* [PermissionSet(SecurityAction.Demand, Unrestricted = true)]
*/
void RefreshActivationProxy(EndpointAddress suggestedAddress)
{
// Pick an address in the following order...
EndpointAddress address = suggestedAddress;
if (address == null)
{
address = this.wsatConfig.LocalActivationService(this.protocolVersion);
if (address == null)
{
address = this.wsatConfig.RemoteActivationService(this.protocolVersion);
}
}
if (!(address != null))
{
// tx processing requires failfast when state is inconsistent
DiagnosticUtility.FailFast("Must have valid activation service address");
}
lock (this.proxyLock)
{
ActivationProxy newProxy = CreateActivationProxy(address);
if (this.activationProxy != null)
{
this.activationProxy.Release();
}
this.activationProxy = newProxy;
}
}
public void SendFault(Microsoft.Transactions.Wsat.Messaging.RequestAsyncResult result, Fault fault)
{
this.state.Perf.FaultsSentCountPerInterval.Increment();
if (DebugTrace.Warning)
{
DebugTrace.Trace(TraceLevel.Warning, "Sending {0} fault to activation participant", fault.Code.Name);
}
ActivationProxy.SendFaultResponse(result, fault);
}
private ActivationProxy GetActivationProxy()
{
if (this.activationProxy == null)
{
this.RefreshActivationProxy(null);
}
lock (this.proxyLock)
{
ActivationProxy activationProxy = this.activationProxy;
activationProxy.AddRef();
return(activationProxy);
}
}
//=============================================================================================
// The demand is not added now (in 4.5), to avoid a breaking change. To be considered in the next version.
/*
* // We demand full trust because we call ActivationProxy.AddRef(), which is defined in a non-APTCA assembly and can do Environment.FailFast.
* // It's recommended to not let partially trusted callers to bring down the process.
* // WSATs are not supported in partial trust, so customers should not be broken by this demand.
* [PermissionSet(SecurityAction.Demand, Unrestricted = true)]
*/
ActivationProxy GetActivationProxy()
{
if (this.activationProxy == null)
{
RefreshActivationProxy(null);
}
lock (this.proxyLock)
{
ActivationProxy proxy = this.activationProxy;
proxy.AddRef();
return(proxy);
}
}
public void SendCreateCoordinationContextResponse(TransactionContext txContext, Microsoft.Transactions.Wsat.Messaging.RequestAsyncResult result)
{
CreateCoordinationContextResponse response = new CreateCoordinationContextResponse(this.state.ProtocolVersion)
{
CoordinationContext = txContext.CoordinationContext,
IssuedToken = txContext.IssuedToken
};
if (DebugTrace.Info)
{
DebugTrace.Trace(TraceLevel.Info, "Sending CreateCoordinationContextResponse");
}
ActivationProxy.SendCreateCoordinationContextResponse(result, ref response);
}
public void ThreadProc()
{
string licensingData;
try
{
// build the xml
using (MemoryStream ms = new MemoryStream())
{
Encoding Utf8 = new UTF8Encoding(false);
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
settings.Encoding = Utf8;
XmlWriter writer = XmlWriter.Create(ms, settings);
writer.WriteStartDocument();
writer.WriteStartElement(LicensingAction);
foreach (XenAPI.Host host in Hosts.Keys)
{
ProduceXmlForHost(host, Hosts[host], writer);
}
writer.WriteEndElement();
writer.WriteEndDocument();
writer.Close();
licensingData = Utf8.GetString(ms.ToArray());
}
// send the xml
ActivationProxy proxy = XmlRpcProxyGen.Create <ActivationProxy>();
proxy.Url = string.Format(InvisibleMessages.ACTIVATION_URL, InvisibleMessages.ACTIVATION_SERVER);
proxy.Timeout = 30 * 1000;
proxy.UseIndentation = false;
proxy.UserAgent = Session.UserAgent;
proxy.KeepAlive = true;
proxy.Proxy = Session.Proxy;
// response is the transaction id of this call to the activation service
string response = proxy.process_reactivation_request(licensingData);
}
catch (Exception)
{
}
}
protected override void Run()
{
Description = Messages.ACTIVATION_REQUEST_TITLE;
ActivationProxy proxy = XmlRpcProxyGen.Create <ActivationProxy>();
proxy.Url = string.Format(InvisibleMessages.ACTIVATION_URL, InvisibleMessages.ACTIVATION_SERVER);
proxy.Timeout = ACTIVATION_REQUEST_TIMEOUT;
proxy.UseIndentation = false;
proxy.UserAgent = Session.UserAgent;
proxy.KeepAlive = true;
proxy.RequestEvent += LogRequest;
proxy.ResponseEvent += LogResponse;
proxy.Proxy = Session.Proxy;
// response is the transaction id of this call to the activation service
Result = proxy.process_reactivation_request(_requestString);
Description = Messages.COMPLETED;
}
private CreateCoordinationContextResponse Enlist(ref Microsoft.Transactions.Wsat.Messaging.CreateCoordinationContext cccMessage)
{
int num = 0;
while (true)
{
ActivationProxy activationProxy = this.GetActivationProxy();
EndpointAddress to = activationProxy.To;
EndpointAddress objB = this.wsatConfig.LocalActivationService(this.protocolVersion);
EndpointAddress address3 = this.wsatConfig.RemoteActivationService(this.protocolVersion);
try
{
return(activationProxy.SendCreateCoordinationContext(ref cccMessage));
}
catch (WsatSendFailureException exception)
{
DiagnosticUtility.ExceptionUtility.TraceHandledException(exception, TraceEventType.Warning);
Exception innerException = exception.InnerException;
if (((innerException is TimeoutException) || (innerException is QuotaExceededException)) || (innerException is FaultException))
{
throw;
}
if (num > 10)
{
throw;
}
if (((num > 5) && (address3 != null)) && object.ReferenceEquals(to, objB))
{
to = address3;
}
}
finally
{
activationProxy.Release();
}
this.TryStartMsdtcService();
this.RefreshActivationProxy(to);
Thread.Sleep(0);
num++;
}
}
//=============================================================================================
// The demand is not added now (in 4.5), to avoid a breaking change. To be considered in the next version.
/*
* [PermissionSet(SecurityAction.Demand, Unrestricted = true)] // because we call code from a non-APTCA assembly; WSATs are not supported in partial trust, so customers should not be broken by this demand
*/
CreateCoordinationContextResponse Enlist(ref CreateCoordinationContext cccMessage)
{
int attempts = 0;
while (true)
{
ActivationProxy proxy = GetActivationProxy();
EndpointAddress address = proxy.To;
EndpointAddress localActivationService = this.wsatConfig.LocalActivationService(this.protocolVersion);
EndpointAddress remoteActivationService = this.wsatConfig.RemoteActivationService(this.protocolVersion);
try
{
return(proxy.SendCreateCoordinationContext(ref cccMessage));
}
catch (WsatSendFailureException e)
{
DiagnosticUtility.TraceHandledException(e, TraceEventType.Warning);
// Don't retry if we're not likely to succeed on the next pass
Exception inner = e.InnerException;
if (inner is TimeoutException ||
inner is QuotaExceededException ||
inner is FaultException)
{
throw;
}
// Give up after 10 attempts
if (attempts > 10)
{
throw;
}
if (attempts > 5 &&
remoteActivationService != null &&
ReferenceEquals(address, localActivationService))
{
// Switch over to the remote activation service.
// In clustered scenarios this uses the cluster name,
// so it should always work if the resource is online
// This covers the case where we were using a local cluster
// resource which failed over to another node
address = remoteActivationService;
}
}
finally
{
proxy.Release();
}
TryStartMsdtcService();
// We need to refresh our proxy here because the channel is sessionful
// and may simply decided to enter the faulted state if something fails.
RefreshActivationProxy(address);
// Don't spin
Thread.Sleep(0);
attempts++;
}
}