From 4c2e567ec827a0e044abe01db45644f2da02715c Mon Sep 17 00:00:00 2001
From: David Venable <dlv@amazon.com>
Date: Fri, 10 Nov 2023 15:45:27 -0600
Subject: [PATCH] Adds a Checkstyle validation to ensure that the Guava cache
 is not used.

Signed-off-by: David Venable <dlv@amazon.com>
---
 config/checkstyle/checkstyle.xml     |  4 ++++
 config/checkstyle/import-control.xml | 14 ++++++++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 config/checkstyle/import-control.xml

diff --git a/config/checkstyle/checkstyle.xml b/config/checkstyle/checkstyle.xml
index 48cb74037d..0ff6481210 100644
--- a/config/checkstyle/checkstyle.xml
+++ b/config/checkstyle/checkstyle.xml
@@ -64,5 +64,9 @@
         -->
         <module name="ModifierOrder" />
 
+        <module name="ImportControl">
+            <property name="file" value="${config_loc}/import-control.xml"/>
+        </module>
+
     </module>
 </module>
diff --git a/config/checkstyle/import-control.xml b/config/checkstyle/import-control.xml
new file mode 100644
index 0000000000..f084235e5b
--- /dev/null
+++ b/config/checkstyle/import-control.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<!--
+  ~ Copyright OpenSearch Contributors
+  ~ SPDX-License-Identifier: Apache-2.0
+  -->
+
+<!DOCTYPE import-control PUBLIC
+        "-//Checkstyle//DTD ImportControl Configuration 1.4//EN"
+        "https://checkstyle.org/dtds/import_control_1_4.dtd">
+
+<import-control pkg="org.opensearch.dataprepper" strategyOnMismatch="allowed">
+    <!-- Prefer Caffeine -->
+    <disallow pkg="com.google.common.cache"/>
+</import-control>