This ended up being a little tougher to accomplish than I had expected.
I tried to override the TemplateEngineManager by specifying the bean in my
struts.xml file. However, struts did not like that there was one already
loaded from the struts-default.xml.
So I created a copy of the struts-default.xml and placed it in my class path
with a different name. In this new default xml I replaced the configuration
for the TemplateEngineManager with one that specified my class. I then updated
the filter configuration in my web.xml to load my default xml file instead of
the struts default xml.
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
<!-- Override so that we can replace struts-default.xml with
struts-sca-default.xml -->
<init-param>
<param-name>config </param-name>
<param-value>struts-sca-default.xml,struts-plugin.xml,struts.xml</param-value>
</init-param>
</filter>
In my custom TemplateEngineManager, I extended the existing
TemplateEngineManager and overrode the getTemplateEngine() as such:
public TemplateEngine getTemplateEngine(Template template, String
templateTypeOverride)
{
TemplateEngine engSelected = super.getTemplateEngine(template,
templateTypeOverride);
if(engSelected instanceof JavaTemplateEngine)
{
if("simple".equalsIgnoreCase(template.getTheme()))
{
return engSelected;
} // end if
else
{
// JavaTemplateEngine currently only supports the "simple"
theme, so need to override
return super.getTemplateEngine(template, DEFAULT_TEMPLATE_TYPE);
} // end else
} // end if
else
{
return engSelected;
} // end else
} // end getTemplateEngine
Thanks,
Ken
-----Original Message-----
From: Hoying, Ken [mailto:[email protected]]
Sent: Monday, February 15, 2010 12:35 PM
To: Struts Users Mailing List
Subject: [Q] JavaTemplate Plugin
I would like to make use of the JavaTemplate Plugin in order to improve my
applications performance. However, I do have "ajax" themed tags, as well as,
some of my own theme tags. I perfectly realize that the any non "simple" theme
tags would not be able to take advantage of the performance improvement.
However, I cannot seem to get my application to work at all. Does this mean
that in order to use this plugin, I can only use the "simple" theme and no
other?
Cannot render tag [head] because theme [ajax] was not found. - [unknown
location]
at
org.apache.struts2.views.java.JavaTemplateEngine.renderTemplate(JavaTemplateEngine.java:58)
at org.apache.struts2.components.UIBean.mergeTemplate(UIBean.java:559)
at org.apache.struts2.components.UIBean.end(UIBean.java:513)
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