Re: [S2] App generate lot (2GB) of garbage!
There are three pages of issues on freemarker... I'll take a look at them and see if it's already present. Thank you Il giorno 22/giu/07, alle ore 19:17, Antonio Petrelli ha scritto: Andrea, please create a JIRA issue for this, and join the discussion at the Struts Developers list too, if possible: http://www.nabble.com/-S2--FreeMarker-usage-in-Struts-2-tf3965756.html Antonio - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Ing. Andrea Vettori Consulente per l'Information Technology - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [S2] App generate lot (2GB) of garbage!
Il giorno 22/giu/07, alle ore 19:20, Musachy Barroso ha scritto:
Yes, freemarker is used by Struts 2 tags to generate html. We could
have a
property for the cache setting, but, does it solve your problem?
(you said
it was partially resolved)
Most of the garbage is still there but at least about 400-500 MB
generated from freemarker classes seems not there anymore.
I tried to use jrockit instead of sun jvm since it has a better
memory analyzer but I haven't been able to produce a report yet.
May I ask more on how struts2 is using freemarker ?
How is freemarker used in a code snippet like this :
td width=34% valign=bottom class=fontNormale
align=center
span
s:form name=RicercaArticoliVisOrdina
action=RicercaArticoliVis
Ordina per s:select list=%
{listaOrdinamentoArticoli} value=${numeri.ordinamento[0]}
name=ordinamento onchange=document.RicercaArticoliVisOrdina.submit
()/
s:hidden name=idRicerca value=$
{numeri.idRicerca}/
/s:form
/span
/td
td width=33% valign=bottom class=fontNormale
align=right
span
s:form name=RicercaArticoliVisDimPagina
action=RicercaArticoliVis
Mostra s:select list={5, 10, 20, 30}
value=${numeri.dimPagina} name=dimPagina
onchange=document.RicercaArticoliVisDimPagina.submit()/ prodotti
per pagina
s:hidden name=idRicerca value=$
{numeri.idRicerca}/
/s:form
/span
/td
What object are created ?
Thanks
regards
musachy
On 6/20/07, Ing. Andrea Vettori [EMAIL PROTECTED] wrote:
I discussed the problem with the freemarker team and I used a
suggestion that PARTIALLY resolved.
They said :
=
You can use the code below to enable the model cache, assuming
myConfiguration is the reference to your Configuration object:
((BeansWrapper)myConfiguration.getObjectWrapper()).setUseCache(true)
and see if it helps you with your GC load levels.
=
This actually seems to happen.
In struts how can this be done ? I used :
freemarker.template.Configuration fmc =
(freemarker.template.Configuration)
ServletActionContext.getServletContext().getAttribute
(FreemarkerManager.CONFIG_SERVLET_CONTEXT_KEY);
if (fmc != null) {
((freemarker.ext.beans.BeansWrapper)fmc.getObjectWrapper
()).setUseCache(true);
}
but I think there must be a configuration somewhere
(struts.properties?).
To completely solve my problem I really need to understand the
following :
How struts uses freemarker ? If i have a jsp page that contains html,
jsp tags, struts tags and jsp EL expression, where freemarker is
used ?
I suppose that it's used ONLY on struts tags...
So if my page is composed primarly of jsp EL and jsp tags and a few
struts tags can I focus on struts tags only to try to understand why
the app is producing garbage ?
Thank you
Il giorno 19/giu/07, alle ore 12:58, Ing. Andrea Vettori ha scritto:
Il giorno 19/giu/07, alle ore 12:07, Antonio Petrelli ha scritto:
2007/6/19, Ing. Andrea Vettori [EMAIL PROTECTED]:
Moreover I'm not using freemaker in my project! It's struts
that's
using it.
My page are all jsps !!
This is pretty strange... Is FreeMarker servlet declared in your
web.xml?
No it's not.
I think that freemarker classes are used by struts internally for
the themes... I use the simple theme.
I really can't understand what's producing near 2GB of garbage
every 10 seconds!
--
Ing. Andrea Vettori
Consulente per l'Information Technology
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Re: [S2] App generate lot (2GB) of garbage!
Struts 2 uses freemarker to generate the html for the tags, for example for
the form tag this template is used:
http://svn.apache.org/viewvc/struts/struts2/trunk/core/src/main/resources/template/simple/form.ftl?view=markup
I was playing with jrockit also and trying to replicate the problem, but it
is kind of hard :). Do you have any testcase, or a page, something that
could help us replicate the problem? I also posted a note on the freemarker
list on how struts configures freemarker, which is on this class:
http://svn.apache.org/viewvc/struts/struts2/trunk/core/src/main/java/org/apache/struts2/views/freemarker/FreemarkerManager.java?view=markup
On that same package there is an StrutsBeanWrapper which is the wrapper used
with freemarker. (I think you asked about it right? memory failing...it is
kind of late :) )
regards
musachy
On 6/23/07, Ing. Andrea Vettori [EMAIL PROTECTED] wrote:
Il giorno 22/giu/07, alle ore 19:20, Musachy Barroso ha scritto:
Yes, freemarker is used by Struts 2 tags to generate html. We could
have a
property for the cache setting, but, does it solve your problem?
(you said
it was partially resolved)
Most of the garbage is still there but at least about 400-500 MB
generated from freemarker classes seems not there anymore.
I tried to use jrockit instead of sun jvm since it has a better
memory analyzer but I haven't been able to produce a report yet.
May I ask more on how struts2 is using freemarker ?
How is freemarker used in a code snippet like this :
td width=34% valign=bottom class=fontNormale
align=center
span
s:form name=RicercaArticoliVisOrdina
action=RicercaArticoliVis
Ordina per s:select list=%
{listaOrdinamentoArticoli} value=${numeri.ordinamento[0]}
name=ordinamento onchange=document.RicercaArticoliVisOrdina.submit
()/
s:hidden name=idRicerca value=$
{numeri.idRicerca}/
/s:form
/span
/td
td width=33% valign=bottom class=fontNormale
align=right
span
s:form name=RicercaArticoliVisDimPagina
action=RicercaArticoliVis
Mostra s:select list={5, 10, 20, 30}
value=${numeri.dimPagina} name=dimPagina
onchange=document.RicercaArticoliVisDimPagina.submit()/ prodotti
per pagina
s:hidden name=idRicerca value=$
{numeri.idRicerca}/
/s:form
/span
/td
What object are created ?
Thanks
regards
musachy
On 6/20/07, Ing. Andrea Vettori [EMAIL PROTECTED] wrote:
I discussed the problem with the freemarker team and I used a
suggestion that PARTIALLY resolved.
They said :
=
You can use the code below to enable the model cache, assuming
myConfiguration is the reference to your Configuration object:
((BeansWrapper)myConfiguration.getObjectWrapper()).setUseCache(true)
and see if it helps you with your GC load levels.
=
This actually seems to happen.
In struts how can this be done ? I used :
freemarker.template.Configuration fmc =
(freemarker.template.Configuration)
ServletActionContext.getServletContext().getAttribute
(FreemarkerManager.CONFIG_SERVLET_CONTEXT_KEY);
if (fmc != null) {
((freemarker.ext.beans.BeansWrapper)fmc.getObjectWrapper
()).setUseCache(true);
}
but I think there must be a configuration somewhere
(struts.properties?).
To completely solve my problem I really need to understand the
following :
How struts uses freemarker ? If i have a jsp page that contains html,
jsp tags, struts tags and jsp EL expression, where freemarker is
used ?
I suppose that it's used ONLY on struts tags...
So if my page is composed primarly of jsp EL and jsp tags and a few
struts tags can I focus on struts tags only to try to understand why
the app is producing garbage ?
Thank you
Il giorno 19/giu/07, alle ore 12:58, Ing. Andrea Vettori ha scritto:
Il giorno 19/giu/07, alle ore 12:07, Antonio Petrelli ha scritto:
2007/6/19, Ing. Andrea Vettori [EMAIL PROTECTED]:
Moreover I'm not using freemaker in my project! It's struts
that's
using it.
My page are all jsps !!
This is pretty strange... Is FreeMarker servlet declared in your
web.xml?
No it's not.
I think that freemarker classes are used by struts internally for
the themes... I use the simple theme.
I really can't understand what's producing near 2GB of garbage
every 10 seconds!
--
Ing. Andrea Vettori
Consulente per l'Information Technology
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
--
Ing. Andrea Vettori
Consulente per l'Information Technology
-
To unsubscribe, e-mail:
Re: [S2] App generate lot (2GB) of garbage!
Il giorno 23/giu/07, alle ore 09:19, Musachy Barroso ha scritto: Struts 2 uses freemarker to generate the html for the tags, for example for the form tag this template is used: http://svn.apache.org/viewvc/struts/struts2/trunk/core/src/main/ resources/template/simple/form.ftl?view=markup So struts asks freemarker to generate the html for the struts tag. Freemarker looks at the template and outputs the html based on it. Freemarker is caching the template in memory to not have to read them from the disk every time. Looks similar to what jsp compiler do with the difference that jsp tags have hard-coded html and freemarker has template based html. Am I right ? But what's the various BeanWrappers doing in the previous process ? It's about the passing of parameters from the struts tag to FreeMarker ? It's the BeanWrappers that was consuming a lot of memory before I enabled caching of them. I was playing with jrockit also and trying to replicate the problem, but it is kind of hard :). Do you have any testcase, or a page, something that could help us replicate the problem? The jrcmd command that's used to profiling is not working on my server :( I posted a question on the bea forum This problem is a hell !!! :) I don't think I can produce a testcase but I try to tell how is the application organized (btw you can view the site on www.elettrotop.com but don't think this can help to solve the problem...). I have a MaxDB (formerly SAPDB) database that's accessed ONLY through EJB3 session beans / entity beans. I'm using JBoss 4.0.5-GA which uses Hibernate 3. The view is composed of struts2 actions, a few servlets producing PDFs and images and jsp pages. All the view logic is inside struts2 actions and they access the database using RMI call to stateless and stateful session beans. Now it's all inside the same server but this architecture gives me the option to separate the web interface (with the option to have more than one web server) from the business logic (maybe on another server) and the database (maybe on another server). I've implemented a lot of caching of (mostly read-only) database data in the struts actions but the profiler says that less than 100MB are used by my classes. Also the cache lasts at least a Session life so it can't be part of the 2GB that's collected since this happens every 10 seconds or less (using sun jvm). I've checked I don't have _unfortunately_ a lot sessions that dies every 10 seconds :) Most used page of the site is the product listings where the user can browse an in ram list of dataobjects created with an ejb3 query in a session bean. The entire list is returned and cached for struts2 action as said above. When I first profiled the app, the most ram demanding classes was freemarker.ext.beans. generated HashMaps (between 400 and 500 mb). -- Ing. Andrea Vettori Consulente per l'Information Technology - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [S2] App generate lot (2GB) of garbage!
2007/6/23, Ing. Andrea Vettori [EMAIL PROTECTED]: So struts asks freemarker to generate the html for the struts tag. Freemarker looks at the template and outputs the html based on it. Freemarker is caching the template in memory to not have to read them from the disk every time. freemarker caches the templates only if there are in the WEB_APP root, have you copied the /template directory from the struts2 jar there? see: http://struts.apache.org/2.x/docs/performance-tuning.html -- Guillaume Carré - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [S2] App generate lot (2GB) of garbage!
yes the templates are into WEB-INFO/templates Il giorno 23/giu/07, alle ore 11:28, Guillaume Carré ha scritto: 2007/6/23, Ing. Andrea Vettori [EMAIL PROTECTED]: So struts asks freemarker to generate the html for the struts tag. Freemarker looks at the template and outputs the html based on it. Freemarker is caching the template in memory to not have to read them from the disk every time. freemarker caches the templates only if there are in the WEB_APP root, have you copied the /template directory from the struts2 jar there? see: http://struts.apache.org/2.x/docs/performance-tuning.html -- Guillaume Carré - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Ing. Andrea Vettori Consulente per l'Information Technology - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
S2: updownselect
I am using the updownselect tag and things are almost working perfectly. Once I switched to a s:form it sends the sorted list to the server, but the select gets refreshed on the screen and scrolled to the bottom despite the fact that it is not in a refreshing div. Has anybody else run into this? Currently using Struts 2.0.6. Thanks, Scott (Reposting this after reading about hijacking topics) Shape Yahoo! in your own image. Join our Network Research Panel today! http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Hibernate and S2
Jeromy Evans wrote: Mansour wrote: An alternative approach is that you don't allow persistent entities to be modified within your actions whatsoever and all updates are applied behind a service layer that performs reattachment and updates. How do I do this (reattachment and updates)? Assuming I have a very big and complex entities. The most appropriate approach depends mainly on the complexity of your entities and the separation of concerns you require. OK, that's what I have in my business layer. Tere's a facade for my business layer. The actions can obtain a reference to this facade through the session by implemeting SessionAware. In this case, at the layer interface you would manually transfer the relevant content of the persistent entities to simple beans created especially for the use-case. Your actions use the beans, not the entities. Updates from the beans are manually applied by your code to the persistent entities behind the layer (load, apply changes manually, persist). These simple beans are sometimes called Data Transfer Objects (DTOs), and by manually I mean you have to write code to explicitly apply the conversion and updates to and from the simple beans and persistent entities. This is exactly what I was trying to avoid doing in the first place. The way my code works now is by taking the bean from the view and pass it to the business facade, where it over writes only the properties that have changed. But again, what If I have complex Entities. On the other hand, this approach forces you to consider the view when you are working in your model, so you have to keep in mind that this properties are populated by the view and it's (IMHO) against the pattern of DAO, where you use only object (DTO) to communicate between different layers of the system. In this approach we are really using properties (fields) that are wrapped in an object. The way I want to do it, is to totally separate the layers, so if I needed to update or modify different fields in the future, I shouldn't touch the business layer, as this is not really a change in the functionality. Makes sense? I think the approach you gave me earlier is the best in this case, which is to use the preparable. Any advice or comments or tutorial about how to use preparable in this scenario? This comes at great cost in terms of the amount of code and testing required as well as processing performance compared to the other approach. The advantage is that the layer can provide strict constraints on how data can be viewed and updated (good security), your business layer is COMPLETELY distinct and independent of the view (good when you have large teams or multiple views) and the business layer can easily be distributed (remote and/or clustered services). That's essentially the basis of EJB. If you ever use GWT you'll also take the same approach. I stress though, that's a lot more effort and the additional cost is not appropriate in most web applications. Glad I could help, Jeromy Evans - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Nested Struts
I've already got the action tag working but what I really need is to call an action from inside an action class. What I'm trying to do is a web application that aggregates a set sub-applications. My plan is that the main application will process the HttpServletRequest which can contain requests intended for many sub-applications. This processing will create a HttpServletRequest for each sub-application and then forward the request to the sub-application that should receive it. After that, I want to Include the executed result of each sub-application into a JSP that will spatially organize all these results. Is what i'm trying to do appropriate for the Struts 2 architecture? How should I call the actions of the sub applications? How should I include the executed results onto my main JSP? Thanks in advance Asaf On 6/20/07, Martin Gainty [EMAIL PROTECTED] wrote: can you associate a name with the compiled Java class? e.g. action name=actionTagAction1 class=tmjee.testing.ActionTagAction executeResult=true id=HtmlID http://struts.apache.org/2.0.6/docs/action.html ? M-- This email message and any files transmitted with it contain confidential information intended only for the person(s) to whom this email message is addressed. If you have received this email message in error, please notify the sender immediately by telephone or email and destroy the original message without making a copy. Thank you. - Original Message - From: Asaf Paris Mandoki [EMAIL PROTECTED] To: user@struts.apache.org Sent: Wednesday, June 20, 2007 8:20 PM Subject: Re: Nested Struts Is there a way to use the s:action tag to call actions of other webapps deployed on the same container? Is there a way to get the result of an action from inside another action class? On 6/20/07, Asaf Paris Mandoki [EMAIL PROTECTED] wrote: I'm trying to make a web application that organizes a bunch of widgets. I want each widget to be programmed using struts and have it's own struts.xml. Each widget should be packed as a war file. I was told on an older thread that I could use a different name space for each widget and also that I could use the action tag to call the actions on each widget. My question is how should I deploy my Widgets? Should I do it as regular web applications? Thanks in advance , Asaf - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
extending a template
Hello every one: I couldn't find an answer to this simple question on struts doc site. I need to modify the template for the submit button and remove the tr tag surrounding it in ajax theme. I extracted submit.ftl from struts jar (I am using 2.0.6). Did the modification I need, and now can not refrence it from my JSP. I tried using template and templateDir attributes but no luck. The modified template file is in /template/ajax/submit.ftl of my WEBAPP ROOT. Then I moved this directory to WEB-INF and no luck. I tried this template=/template/ajax/submit.ftl and tried templateDir=/template/ajax and templateDir=template but no luck. can some one point out, how to do this. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
autocompleter help
Hi, In the struts-showcase is showed an example of autocomplete. http://www.planetstruts.org/struts2-showcase/viewSource.action?page=/ajax/autocompleter/index.jsp When the user changes the first combo(color or fruits) , the second combo is changed (apple, banana,ect) too. I need an example for the second combo be filled with names and keys too. How I do this with autocomplete? What I need to change in options.ftl ?? Thanks Herrera (Strus2.0.8) -- View this message in context: http://www.nabble.com/autocompleter-help-tf3971137.html#a11272073 Sent from the Struts - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Submitting a form with ajax submit inside the form
From the documentation
http://struts.apache.org/2.0.8/docs/ajax-tags.html#AjaxTags-submitTag
If the submit button is used inside a form (href is not required on this
case), the form will be submitted asynchronously:
This is note true. It can never submit from inside a form. This will
never anything. It will never make any thing. I am using 2.0.6
s:iterator value=taskList status=stat id=row
s:form action=updateTask id=form_${id}
s:if test=#stat.odd == true
tr class=odd
/s:if
s:else
tr class=even
/s:else
div id=DIV_${id}
td
s:textfield value=${id} name=task.id /
/td
td
s:submit theme=ajax /
/td
/div
/tr
/s:form
/s:iterator
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