You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@tiles.apache.org by "Gagan Arora (JIRA)" <ji...@apache.org> on 2015/07/13 19:53:05 UTC
[jira] [Created] (AUTOTAG-21) AbstractModelBody.evaluateAsString
uses regular expression to replace the contents of the string. It should
be able to use a pre compiled Pattern instead for performance reason
Gagan Arora created AUTOTAG-21:
----------------------------------
Summary: AbstractModelBody.evaluateAsString uses regular expression to replace the contents of the string. It should be able to use a pre compiled Pattern instead for performance reason
Key: AUTOTAG-21
URL: https://issues.apache.org/jira/browse/AUTOTAG-21
Project: Tiles Autotag
Issue Type: Improvement
Affects Versions: 1.1.0
Reporter: Gagan Arora
I am seeing high CPU utilization on AbstractModelBody.evaluateAsString method in my thread dumps.
java.lang.Thread.State: RUNNABLE
at java.util.regex.Pattern$BmpCharProperty.match(Pattern.java:3715)
at java.util.regex.Pattern$Curly.match0(Pattern.java:4158)
at java.util.regex.Pattern$Curly.match(Pattern.java:4132)
at java.util.regex.Pattern$Branch.match(Pattern.java:4502)
at java.util.regex.Pattern$Start.match(Pattern.java:3408)
at java.util.regex.Matcher.search(Matcher.java:1199)
at java.util.regex.Matcher.find(Matcher.java:592)
at org.apache.tiles.autotag.core.runtime.AbstractModelBody.evaluateAsString(AbstractModelBody.java:70)
at org.apache.tiles.template.PutAttributeModel.execute(PutAttributeModel.java:96)
at org.apache.tiles.jsp.taglib.PutAttributeTag.doTag(PutAttributeTag.java:226)
What I did
1. Declared a compiled Pattern
private static Pattern pattern = Pattern.compile("^\\s*|\\s*$");
2. in evaluateAsString :
pattern.matcher(body).replaceAll("");
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)