From 0853e4b5b9399d3a0a601ec242faca6cf8a2a170 Mon Sep 17 00:00:00 2001
From: sonika-shah <58761340+sonika-shah@users.noreply.github.com>
Date: Tue, 16 Jul 2024 11:56:19 +0530
Subject: [PATCH] Fix exact FQN matching for alert filter
 -filterByTableNameTestCaseBelongsTo (#17034)

---
 .../service/events/subscription/AlertsRuleEvaluator.java  | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertsRuleEvaluator.java b/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertsRuleEvaluator.java
index c2a58b3a937..882d661064a 100644
--- a/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertsRuleEvaluator.java
+++ b/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertsRuleEvaluator.java
@@ -255,7 +255,13 @@ public class AlertsRuleEvaluator {
 
     EntityInterface entity = getEntity(changeEvent);
     for (String name : tableNameList) {
-      Pattern pattern = Pattern.compile(name);
+      // Escape regex special characters in table name for exact matching
+      String escapedName = Pattern.quote(name);
+
+      // Construct regex to match table name exactly, allowing for end of string or delimiter (.)
+      String regex = "\\b" + escapedName + "(\\b|\\.|$)";
+      Pattern pattern = Pattern.compile(regex);
+
       Matcher matcher = pattern.matcher(entity.getFullyQualifiedName());
       if (matcher.find()) {
         return true;