/// <summary>
/// The start point of our application
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
#region ClassicExample
// get the instances
var singletonClassic1 = SingletonClassic.GetInstance;
var singletonClassic2 = SingletonClassic.GetInstance;
// Test for same instance
if (singletonClassic1 == singletonClassic2)
{
Console.WriteLine("Classic Objects are the same instance");
}
#endregion
#region LazyInitialization
// get the instances
var singletonLazy1 = SingletonLazyInitialization.GetInstance();
var singletonLazy2 = SingletonLazyInitialization.GetInstance();
// Test for same instance
if (singletonLazy1 == singletonLazy2)
{
Console.WriteLine("Lazy Objects are the same instance");
}
#endregion
#region LazyInitialization
// get the instances
var singletonThreadSafe1 = SingletonThreadSafeLazyInitialization.GetInstance();
var singletonThreadSafe2 = SingletonThreadSafeLazyInitialization.GetInstance();
// Test for same instance
if (singletonThreadSafe1 == singletonThreadSafe2)
{
Console.WriteLine("Thread-Safe Objects are the same instance");
}
#endregion
#region RealWorldExample
var balancer1 = LoadBalancer.GetLoadBalancer();
var balancer2 = LoadBalancer.GetLoadBalancer();
var balancer3 = LoadBalancer.GetLoadBalancer();
var balancer4 = LoadBalancer.GetLoadBalancer();
// Test for same instance
if (balancer1 == balancer2 && balancer2 == balancer3 && balancer3 == balancer4)
{
Console.WriteLine("Same load balancer instance");
}
// Load balance 15 requests for a server
var balancer = LoadBalancer.GetLoadBalancer();
for (int i = 0; i < 15; i++)
{
string serverName = balancer.NextServer.Name;
Console.WriteLine("Dispatch request to: " + serverName);
}
#endregion
}
/// <summary>
/// Get the instance. Thread safe :D
/// </summary>
public static SingletonThreadSafeLazyInitialization GetInstance()
{
lock (_classLock)
{
if (_instance == null)
{
_instance = new SingletonThreadSafeLazyInitialization();
}
return(_instance);
}
}
