(cloudstack) branch 4.22 updated: API rule regex optimization (#13109)

[dahn]

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DaanHoogland pushed a commit to branch 4.22
in repository https://gitbox.apache.org/repos/asf/cloudstack.git


The following commit(s) were added to refs/heads/4.22 by this push:
     new f49ab6b394d API rule regex optimization (#13109)
f49ab6b394d is described below

commit f49ab6b394d8685ef6555adac2afbf52e5cb963f
Author: Suresh Kumar Anaparti <sureshkumar.anapa...@gmail.com>
AuthorDate: Thu Jun 25 20:48:05 2026 +0530

    API rule regex optimization (#13109)
    
    Co-authored-by: Aaron Chung <aaron_ch...@apple.com>
---
 api/src/main/java/org/apache/cloudstack/acl/Rule.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/api/src/main/java/org/apache/cloudstack/acl/Rule.java 
b/api/src/main/java/org/apache/cloudstack/acl/Rule.java
index a4ef7773f67..de64d855ccc 100644
--- a/api/src/main/java/org/apache/cloudstack/acl/Rule.java
+++ b/api/src/main/java/org/apache/cloudstack/acl/Rule.java
@@ -25,16 +25,18 @@ import org.apache.commons.lang3.StringUtils;
 
 public final class Rule {
     private final String rule;
+    private final Pattern compiledPattern;
     private final static Pattern ALLOWED_PATTERN = 
Pattern.compile("^[a-zA-Z0-9*]+$");
 
     public Rule(final String rule) {
         validate(rule);
         this.rule = rule;
+        this.compiledPattern = Pattern.compile(rule.replace("*", "\\w*"), 
Pattern.CASE_INSENSITIVE);
     }
 
     public boolean matches(final String commandName) {
         return StringUtils.isNotEmpty(commandName)
-                && 
commandName.toLowerCase().matches(rule.toLowerCase().replace("*", "\\w*"));
+                && compiledPattern.matcher(commandName).matches();
     }
 
     public String getRuleString() {