https://issues.apache.org/bugzilla/show_bug.cgi?id=56787
Bug ID: 56787
Summary: Simplified jndi name parsing
Product: Tomcat 7
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: xs...@ebay.com
Created attachment 31855
--> https://issues.apache.org/bugzilla/attachment.cgi?id=31855&action=edit
Patch
Tomcat uses JNDI to look up resource. The name of a resource needs to be parsed
into a Name object. By default it is a CompositeName.
Parsing a string to a CompositeName is low performance due to the following
reason,
1. Call too many times of the method "String.startsWith"
2. Create StringBuffer instance for each component
The patch provides a simplified Name implementation. The parsing is around 6
times faster than the default one. The result was get on my Macbook Pro by
running TestSimpleName.testAB().
The issue is impacting the start up of tomcat server. Because there are many
resource looking up when server is starting.
The patch can improve the server start time.
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