[opencms-dev] Getting changed module parameters without restarting

[Ruben Malchow]

hello pavel,

do you use the module management frontend to change the parameters? 
because here, it works swell: when i change module parameters, the

	moduleUpdate(CmsModule cmsmod)

method is called. and

	cmsmod.getParameters()

returns a map of the new parameters. to register that, you will have to 
extend

	org.opencms.module.A_CmsModuleAction

example:

	package foo.bar.module;

	import org.opencms.module.A_CmsModuleAction;

	public class FooBarModuleAction extends A_CmsModuleAction {

		private String saveDir=null;

		[...]

		public void moduleUpdate(CmsModule arg0) {
			this.saveDir=arg0.getParameter("saveDir");
		}
	}


and register it in your manifest.xml:

	<module>
		<name>foo.bar.module</name>
		<class>foo.bar.module.FooBarModuleAction</class>
		[...]
	</module>

regards

.rm



Pavel Peringer wrote:
> Hello
> 
> I have some module using its module parameters for working. I would like 
> change the module parameters ie. files store dir. But I do not want 
> restart whole web application only for this not so important change.
> 
> If I change the module parameters, the module state is frozen after 
> calling org.opencms.module.CmsModule.initialize() and I allways get the 
> "old" parameters until restart.
> 
> When some resource in VFS is changed, the appropriate event is fired.
> Could be possible fire similar event (ie. 
> EVENT_MODULE_PARAMETERS_CHANGED) in 
> org.opencms.workplace.tools.modules.CmsModulesEditBase.actionCommit()?
> 
> Example (update module code part):
> OpenCms.getModuleManager().updateModule(getCms(), m_module);
> 
> Map data = new HashMap();
> data.put(KEY_MODULE_NAME, m_module.getName());
> data.put(KEY_MODULE_PARAMETERS, m_module.getParameters());
> OpenCms.fireCmsEvent(EVENT_MODULE_PARAMETERS_CHANGED, data);
> 
> Of cource add these constants to the interface.
> 
> Every action module class listening to this event then could be able to 
> update parameters when the event was fired from its "parent" module.
> For this purpose it must have its own Map object because the "parent" 
> module is frozen and do not return new values.
> 
> Or there is other existing solution for reload changed module parameters 
> without restarting webapp container (Apache/Tomcat/..) ?
> 
> Thanks for answer
> 
> Pavel Peringer
>