From a9c3c6eefa87aa198306207504dfc4821daee38c Mon Sep 17 00:00:00 2001
From: Aprite <aprite@outlook.com>
Date: Fri, 23 Aug 2024 08:11:47 +0800
Subject: [PATCH] perf: Optimize the processing speed of EvaluateRuleAction
 (#612)

Co-authored-by: shaoxiaoxu <shaoxiaoxu@autobio.com.cn>
Co-authored-by: YogeshPraj <yoprajap@microsoft.com>
---
 src/RulesEngine/Actions/ActionContext.cs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/RulesEngine/Actions/ActionContext.cs b/src/RulesEngine/Actions/ActionContext.cs
index af66cdc8..1c86778d 100644
--- a/src/RulesEngine/Actions/ActionContext.cs
+++ b/src/RulesEngine/Actions/ActionContext.cs
@@ -45,6 +45,13 @@ public bool TryGetContext<T>(string name,out T output)
         {
             try
             {
+                //key not found return
+                //Returning a KeyNotFoundException has a significant impact on performance.
+                if (!_context.ContainsKey(name))
+                {
+                    output = default(T);
+                    return false;
+                }
                 output =  GetContext<T>(name);
                 return true;
             }