From 5732bddf17f62f42c291ea83df4c4775ae5325aa Mon Sep 17 00:00:00 2001
From: zhanglei-1987 <31624476+zhanglei-1987@users.noreply.github.com>
Date: Thu, 14 Apr 2022 21:18:04 +0800
Subject: [PATCH] Update DefaultRepositoryCacheManager.java
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Allow customization  ‘dataFilePattern’
---
 .../core/cache/DefaultRepositoryCacheManager.java    | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/java/org/apache/ivy/core/cache/DefaultRepositoryCacheManager.java b/src/java/org/apache/ivy/core/cache/DefaultRepositoryCacheManager.java
index 497a5363f..677f8bc84 100644
--- a/src/java/org/apache/ivy/core/cache/DefaultRepositoryCacheManager.java
+++ b/src/java/org/apache/ivy/core/cache/DefaultRepositoryCacheManager.java
@@ -110,7 +110,7 @@ public class DefaultRepositoryCacheManager implements RepositoryCacheManager, Iv
 
     private String ivyPattern;
 
-    private String dataFilePattern = DEFAULT_DATA_FILE_PATTERN;
+    private String dataFilePattern;
 
     private String artifactPattern;
 
@@ -223,6 +223,16 @@ public void setDefaultTTL(String defaultTTL) {
     }
 
     public String getDataFilePattern() {
+        
+         if (dataFilePattern == null) {
+            if (settings != null) {
+                dataFilePattern = settings.getVariable("ivy.cache.ivydata.pattern");
+            }
+            if (dataFilePattern == null) {
+                dataFilePattern = DEFAULT_DATA_FILE_PATTERN;
+            }
+        }
+        
         return dataFilePattern;
     }