[CAMEL-16202] camel-core - Optimize DefaultHeaderFilterStrategy filtering

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.7.3, 3.9.0
• Component/s: camel-core
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Claus Ibsen
• Created: 13/Feb/21 19:07
• Updated: 14/Feb/21 14:41
• Resolved: 14/Feb/21 14:41

Description

When using a default pattern, we know what its ahead of time, and can do a quicker check, eg as its about keys starting with Camel or org.apache.camel.

Otherwise the regexp patterm matcher may allocate excessive objects.

if (pattern != null && pattern.matcher(headerName).matches())

{ return filterOnMatch; }

Issue Links

• is related to: CAMEL-16199 camel-http - Optimize headers added as request headers in producer
• relates to: CAMEL-16203 camel-core - Optimize removeHeaders all