[camel] branch camel-3.7.x updated: CAMEL-16202: camel-core - Optimize DefaultHeaderFilterStrategy filtering

[davsclaus]

This is an automated email from the ASF dual-hosted git repository.

davsclaus pushed a commit to branch camel-3.7.x
in repository https://gitbox.apache.org/repos/asf/camel.git


The following commit(s) were added to refs/heads/camel-3.7.x by this push:
     new 970fbf9  CAMEL-16202: camel-core - Optimize 
DefaultHeaderFilterStrategy filtering
970fbf9 is described below

commit 970fbf9e1a5e4bdf1a58d5c783187ab89959bea8
Author: Claus Ibsen <claus.ib...@gmail.com>
AuthorDate: Sun Feb 14 13:40:22 2021 +0100

    CAMEL-16202: camel-core - Optimize DefaultHeaderFilterStrategy filtering
---
 .../apache/camel/support/DefaultHeaderFilterStrategy.java   | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git 
a/core/camel-support/src/main/java/org/apache/camel/support/DefaultHeaderFilterStrategy.java
 
b/core/camel-support/src/main/java/org/apache/camel/support/DefaultHeaderFilterStrategy.java
index fa1ad2a..35674d4 100644
--- 
a/core/camel-support/src/main/java/org/apache/camel/support/DefaultHeaderFilterStrategy.java
+++ 
b/core/camel-support/src/main/java/org/apache/camel/support/DefaultHeaderFilterStrategy.java
@@ -275,16 +275,11 @@ public class DefaultHeaderFilterStrategy implements 
HeaderFilterStrategy {
             filter = inFilter;
         }
 
-        String lower = null;
         if (pattern != null) {
             // optimize if its the default pattern as we know the pattern is 
to check for keys starting with Camel
             if (pattern == CAMEL_FILTER_PATTERN) {
-                boolean match = headerName.startsWith("org.apache.camel.") || 
headerName.startsWith("Camel");
-                if (!match) {
-                    // the default filter is case insensitive so check for 
lower case starting match
-                    lower = headerName.toLowerCase(Locale.ENGLISH);
-                    match = lower.startsWith("org.apache.camel.") || 
lower.startsWith("camel");
-                }
+                boolean match = headerName.startsWith("Camel") || 
headerName.startsWith("camel")
+                        || headerName.startsWith("org.apache.camel.");
                 if (match) {
                     return filterOnMatch;
                 }
@@ -301,9 +296,7 @@ public class DefaultHeaderFilterStrategy implements 
HeaderFilterStrategy {
                     }
                 }
             } else if (isLowerCase()) {
-                if (lower == null) {
-                    lower = headerName.toLowerCase(Locale.ENGLISH);
-                }
+                String lower = headerName.toLowerCase(Locale.ENGLISH);
                 if (filter.contains(lower)) {
                     return filterOnMatch;
                 }