SNOW-902608 Connection pool V2

Snowflake.Data/Client/SnowflakeDbConnectionPool.cs

@@ -3,6 +3,7 @@
 using System.Threading;
 using System.Threading.Tasks;
 using Snowflake.Data.Core;
+using Snowflake.Data.Core.ConnectionPool;
 using Snowflake.Data.Core.Session;
 using Snowflake.Data.Log;
 
@@ -85,10 +86,12 @@ public static bool GetPooling()
 
         private static ConnectionPoolManagerBase ProvideConnectionPoolManager()
         {
-            if (s_poolVersion == PoolManagerVersion.Version1)
-                return new ConnectionPoolManagerV1();
-
-            throw new NotSupportedException("Pool version not supported");
+            switch (s_poolVersion)
+            {
+                case PoolManagerVersion.Version1: return new ConnectionPoolManagerV1();
+                case PoolManagerVersion.Version2: return new ConnectionPoolManagerV2();
+                default: throw new NotSupportedException("Pool version not supported");
+            }
         }
 
         internal static SFSession GetSession(string connectionString, SecureString password)

Snowflake.Data/Core/Session/ConnectionPoolManagerV2.cs

@@ -0,0 +1,20 @@
+using Snowflake.Data.Core.Session;
+
+namespace Snowflake.Data.Core.ConnectionPool
+{
+    class ConnectionPoolManagerV2 : ConnectionPoolManagerBase
+    {
+        private const bool AllowExceedMaxPoolSizeDefault = false;
+        // private const int MinPoolSizeDefault = 0; // TODO: SNOW-902610
+        private const int MaxPoolSizeDefault = 10;
+
+        protected override PoolManagerVersion GetVersion() => PoolManagerVersion.Version2;
+
+        protected override void ApplyPoolDefaults(SessionPool pool)
+        {
+            pool.SetAllowExceedMaxPoolSize(AllowExceedMaxPoolSizeDefault);
+            // pool.SetMinPoolSize(MinPoolSizeDefault); // TODO: SNOW-902610
+            pool.SetMaxPoolSize(MaxPoolSizeDefault);
+        }
+    }
+}