feat: bg implementation

Author: JuanLeee

AwsWrapperDataProvider.Plugin.BlueGreenConnection/BlueGreenConnection/BlueGreenConnectionCache.cs

@@ -0,0 +1,49 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// 
+// Licensed under the Apache License, Version 2.0 (the "License").
+// You may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// 
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+using System.Collections.Concurrent;
+
+namespace AwsWrapperDataProvider.Plugin.BlueGreenConnection.BlueGreenConnection;
+
+public class BlueGreenConnectionCache
+{
+    private static readonly Lazy<BlueGreenConnectionCache> InstanceValue =
+        new Lazy<BlueGreenConnectionCache>(() => new BlueGreenConnectionCache());
+
+    private readonly ConcurrentDictionary<string, object> cache = new();
+
+    private BlueGreenConnectionCache() { }
+
+    public static BlueGreenConnectionCache Instance => InstanceValue.Value;
+
+    public T? Get<T>(string key) where T : class
+    {
+        return cache.TryGetValue(key, out var value) ? value as T : null;
+    }
+
+    public void Set<T>(string key, T value) where T : class?
+    {
+        cache[key] = value;
+    }
+
+    public bool TryRemove(string key)
+    {
+        return cache.TryRemove(key, out _);
+    }
+
+    public void Clear()
+    {
+        cache.Clear();
+    }
+}