/// <summary>
/// Invoke method implementation
/// </summary>
private T Invoke <T>(string operationName, string uri, ExecuteOptions options, InvokeDelegate <T> operation)
{
using (new SPMonitoredScope("Invoke :" + operationName + "_" + uri))
{
string ep = FindLoadBalancerEndPoint(uri);
if (!string.IsNullOrEmpty(ep))
{
Uri xu = new Uri(ep);
IIdentityServiceContract identityapplication = GetChannel(xu, options);
IClientChannel clientChannel = identityapplication as IClientChannel;
try
{
operation(identityapplication);
clientChannel.Close();
}
finally
{
if (clientChannel.State != CommunicationState.Closed)
{
clientChannel.Abort();
}
}
}
}
return(default(T));
}
/// <summary>
/// ExecuteOnChannel method implementation
/// </summary>
private T Execute <T>(string operationName, ExecuteOptions options, ExecuteDelegate <T> operation)
{
T result;
object obj = null;
using (new SPMonitoredScope("Execute :" + operationName))
{
bool mustexit = false;
string firstaddress = "";
do
{
SPServiceLoadBalancerContext loadBalancerContext = m_LoadBalancer.BeginOperation();
try
{
if (firstaddress.Equals(loadBalancerContext.EndpointAddress.ToString()))
{
mustexit = true;
}
if (!mustexit)
{
if ((loadBalancerContext.Status == SPServiceLoadBalancerStatus.Succeeded))
{
if (string.IsNullOrEmpty(firstaddress))
{
firstaddress = loadBalancerContext.EndpointAddress.ToString();
}
IIdentityServiceContract identityapplication = GetChannel(loadBalancerContext.EndpointAddress, options);
IClientChannel clientChannel = identityapplication as IClientChannel;
try
{
obj = operation(identityapplication);
clientChannel.Close();
mustexit = true;
}
catch (TimeoutException)
{
loadBalancerContext.Status = SPServiceLoadBalancerStatus.Failed;
}
catch (EndpointNotFoundException)
{
loadBalancerContext.Status = SPServiceLoadBalancerStatus.Failed;
}
finally
{
if (clientChannel.State != CommunicationState.Closed)
{
clientChannel.Abort();
}
}
}
}
}
finally
{
loadBalancerContext.EndOperation();
}
}while (!mustexit);
result = (T)((object)obj);
}
return(result);
}
