Subject: Re: resetting init-params with Jetty - msg#00028

You probably have to stop and then start the ServletHolder after changing
the init params, so that the changed params are noticed.

Don't stop/start the whole context as the defaultweb.xml and web.xml will
get run again and overwrite your changes.

Currently there is no way to write out a Jetty configuration file. Perhaps
you could do something with Jelly to replace the jetty configuration files?

Cisco have done an extension of the jetty config file to allow them to
be written out, but they have not open sourced that yet... but they may do
at some stage soon.

cheers

Proebster, Rainer wrote:
Hi,

is it possible to change the init-params of a Jetty-context during runtime?
And how do I do this programmatically (on the fly - without changing something
in an xml-file)?
And last, what is the recommended way to save a programmatically changed
configuration to a xml-file?

In my webdefault.xml I have something like this:
....
<servlet>
<servlet-name>JSP</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>

<init-param><param-name>keepgenerated</param-name><param-value>true</param-value></init-param>

<init-param><param-name>development</param-name><param-value>true</param-value></init-param>

<init-param><param-name>fork</param-name><param-value>true</param-value></init-param>

<init-param><param-name>reloading</param-name><param-value>true</param-value></init-param>

<init-param><param-name>checkInterval</param-name><param-value>60</param-value></init-param>
....

I tried to change this for one of my contexts like this:

public void setInitParam(String sParam, String sValue) throws Exception {
ServletHolder[] holder =
jtySrvConfig.getJspContext().getServletHandler().getServlets();
for (int i=0; i<holder.length; i++) {
if(holder[i].getName().equals("JSP")) {
System.out.println("before: "+holder[i].getInitParameters());
jtySrvConfig.getJspContext().stop();
holder[i].setInitParameter(sParam, sValue);
jtySrvConfig.getJspContext().start();
System.out.println("after: "+holder[i].getInitParameters());
ServletConfig config = holder[i].getServlet().getServletConfig();
System.out.println(config.getClass().getName());
Enumeration en = config.getInitParameterNames();
while(en.hasMoreElements()) {
String s = (String)en.nextElement();
System.out.println(s+": "+config.getInitParameter(s));
}
break;
}
}
}

But this doen't work!

Thank you for all help!!

Best wishes,

Rainer



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Perforce is the Fast Software Configuration Management System offering
advanced branching capabilities and atomic changes on 50+ platforms.
Free Eval! http://www.perforce.com/perforce/loadprog.html
_______________________________________________
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Jetty-support@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/jetty-support