Re: Strange performance issue Tomcat/Jetty
Hi again, I could nail this problem down to the hibernate level. Executing hibernate queries takes 2-5 times longer when an application is hosted on tomcat than when it is hosted on jetty5.1.10. Does anyone have an explanation on that? Is this a pure hibernate problem or rather in tapestry-hibernate integration? M. Am 20.06.2008 um 15:00 schrieb Moritz Gmelin: Hi, I have a 5.0.13 application running that handles some grids with about 150 entries fetched from a database. Now on one page, this grid is basically the only component of the page. On another page, there are some beans around that grid and the grid itself is in a block that is only displayed under certain circumstances. Now if this application is run with tomcat 6.0.14, the page where the grid is one of many components is way slower to render that the page where the grid is the only component (~3sec vs. 1sec.) Running the application with jetty 5.5.11 does not show this effect. The pages are both rendered instantly. With Jetty 6.1.11 again I can see that the grid contained in the more complex page takes as long as with Tomcat. This difference in render times also happens when the grid is shown as an inPlace grid. Does anyone see a reason why rendering a component takes so much longer with Tomcat or Jetty 6 than with Jetty 5 ? Is there anything I can do to make tomcat faster? Thanks Moritz - 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: Security of t:formdata
Howard Lewis Ship wrote: Although you could use this technique (severe hacking of t:formdata) to control what ComponentAction was instantiated at what point in the form submission, the security effects of this are minimal; Tapestry includes only a finite set of ComponentAction classes and each has a very specific job; the worst that you could do would be to redirect certain property updates to certain other fields, and doing even that would require deep understanding of Tapestry and of the specific application. Could it be used for DOS attacks? For example, by forcing server to instantiate something heavy. Anyway, I think, security by obscurity not very good approach to secure code. There's an outstanding issue concerning this; the best security is not to encrypt or checksum the data, but not to send it to the client at all. Instead, store the bytestream on the server, and send a token to the client. This will mean smaller rendered pages, smaller requests, and (probably) better throughput along with improved security. However, managing these server-side bytestreams (knowing how long to retain them, when to discard them, and which ones are useable with with sessions) is a challenge, especially in a cluster. In my opinion, signing is better, because it allows you to stay stateless in that case, which is good for scalability. The secret key could be generated during framework initialization, for example, so formdata will be valid until application is restarted (which is acceptable for most cases). -- WBR, Ivan S. Dubrov - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [T5] how to add dojo in tapestry5?
Hi, You have two ways to do this: 1. simply include into your page/components dojo javascript libraries 2. write your own PageRenderSupport (see public void contributeMarkupRenderer(...) in TapestyModule) Tan [EMAIL PROTECTED] wrote: hi all, hi i know tapestry5 come with scriptaculous and prototype. but i wan to use something like dojo AccordionContainer in tml. may i know any way to do it? thank youl. Regards, [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/-T5--how-to-add-dojo-in-tapestry5--tp18044089p18064520.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
grid component exclude/inlcude has no effect (t5.0.10)
Hi I have a grid component like this: t:grid source=addrList row=addrRow reorder=kurzname, adressnr, ort, strasse /t:grid The reorder parameter works, but neither include nor exclude seem to do anything, as in: t:grid source=addrList row=addrRow include=kurzname, adressnr, ort, strasse /t:grid which should have the same output as reorder but omit any further columns. I'm currently using t5.0.10 (due to tomcat startup problems with t5.0.13). Is that a known problem or am I doing something wrong? Thanks, Udo. -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
programmatic component rendering
Hi, we're planning a highly dynamic web app, where it is necessary to display certain components depending of the application state. E.g., in an address detail view there should be a paragraph which contains different details for a customer and a supplier. Or if the balance of an account is greater than a certain amnout, another component should be redered on the current page (or within the current component, respectively). Since there are many such situations and combinations, we can't build static tml files for all of them. So, is it possible to render an arbitrary component based on a programmatic choice from within the rendering of a component? Thanks, Udo. -- GMX startet ShortView.de. Hier findest Du Leute mit Deinen Interessen! Jetzt dabei sein: http://www.shortview.de/[EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: programmatic component rendering
hi udo, there are different approaches to it... :) ... you can configure the view using blocks ... i do it by defining some Blocks that are then composed using certain rules through my pimped BeanEditor component. eg. a new Dealer has at least one employee. Therefore when a new Dealer is created i get the input fields to create a new employee as well. when i edit a Dealer i only get a select option where i can select the main employee. which block is displayed is controlled by a service that has some rules contributed. so all i have to do is to define the rules ( fine granular: uses the beantype, propertytype, the current page, and a state) and pass in my bean to my pimped BeanEditor component. The contributed rules have a reference to the current bean and therefore can excute some logic and control the displayed block respectively. i hope this helps :) g, kris Udo Abel [EMAIL PROTECTED] 23.06.2008 10:26 Bitte antworten an Tapestry users users@tapestry.apache.org An users@tapestry.apache.org Kopie Thema programmatic component rendering Hi, we're planning a highly dynamic web app, where it is necessary to display certain components depending of the application state. E.g., in an address detail view there should be a paragraph which contains different details for a customer and a supplier. Or if the balance of an account is greater than a certain amnout, another component should be redered on the current page (or within the current component, respectively). Since there are many such situations and combinations, we can't build static tml files for all of them. So, is it possible to render an arbitrary component based on a programmatic choice from within the rendering of a component? Thanks, Udo. -- GMX startet ShortView.de. Hier findest Du Leute mit Deinen Interessen! Jetzt dabei sein: http://www.shortview.de/[EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
t5: t5.0.13 and DocumentHeadBuilder
Hi, I'm upgrading to 5.0.13, i use this internal service:DocumentHeadBuilder.addScript, it's not in the 5.0.13 any more, what are the equivalents? Thanks, Angelo -- View this message in context: http://www.nabble.com/t5%3A-t5.0.13-and-DocumentHeadBuilder-tp18065869p18065869.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Strange performance issue Tomcat/Jetty
On Mon, Jun 23, 2008 at 8:13 AM, Moritz Gmelin [EMAIL PROTECTED] wrote: Hi again, I could nail this problem down to the hibernate level. Executing hibernate queries takes 2-5 times longer when an application is hosted on tomcat than when it is hosted on jetty5.1.10. Does anyone have an explanation on that? Is this a pure hibernate problem or rather in tapestry-hibernate integration? I must say i've never used tomcat in production, always jetty, but this sound strange anyway. Could you provide more infos, did you use a profiler or something else? -- Massimo http://meridio.blogspot.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: t5: t5.0.13 and DocumentHeadBuilder
i think the RenderSupport service is what you are looking for. g, kris Angelo Chen [EMAIL PROTECTED] 23.06.2008 11:44 Bitte antworten an Tapestry users users@tapestry.apache.org An users@tapestry.apache.org Kopie Thema t5: t5.0.13 and DocumentHeadBuilder Hi, I'm upgrading to 5.0.13, i use this internal service:DocumentHeadBuilder.addScript, it's not in the 5.0.13 any more, what are the equivalents? Thanks, Angelo -- View this message in context: http://www.nabble.com/t5%3A-t5.0.13-and-DocumentHeadBuilder-tp18065869p18065869.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[T4.1.5] RadioGroup EventListener doesn't work
Hi, When trying to you the onChange method on a RadioGroup component, we encountered the following error client side : [Exception... 'Error: bad srcObj for srcFunc: onChange' when calling method: [nsIDOMEventListener::handleEvent] nsresult: 0x8057001c (NS_ERROR_XPC_JS_THREW_JS_OBJECT) location: unknown data: no] We thought we did something wrong so we started back from the Ajax example on the tapestry website (http://tapestry.apache.org/tapestry4.1/components/form/radiogroup.html). Still doesn't work. Do you have an idea ? How to made the example work, is there something missing ? Best regards, Jérome. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[ANN] JumpStart 3.8: for Tapestry 5.0.13
Hi all, JumpStart 3.8 is now available. It's for Tapestry 5.0.13. New in this release: * @ProtectedPage annotation - uses an annotation instead of a super class to protect pages against users who aren't logged in. * Provides a script that creates a fresh, working project with your application name and package names. * Fixes a bug that prevented use of the Create User page. * Clearer separation between the examples and the application. You'll find it at: http://files.doublenegative.com.au/jumpstart As always, comments and suggestions are encouraged. Be helpful or brutal - I don't care which - because it all helps to make this stuff more useful. Cheers, Geoff
Re: Merge T4-Application with a T5-Page
I solved little problems with a temporary solution in the meantime. I created another application with T5 and switch beetween pages with hard-coded URLs. The problem is that it is not possible to pass parameters beetween the applications. For example i wrote a page with a grid component in T5 and in the grid there are links for showing details of the selected row. But the target (detailsPage) is a T4-Page who want to have parameters like the id or the sessionid. Is it possible to send parameters to a T4 page in some way? Has anybody a link or instructions for the URL-encoding in T4? Is it possible to send all needed parameters from T4 to T5 to build an encoded URL to return to the T4-application? Is there maybe an easier way to implement this? The main target of this is to transform an old T4-Application to a T5-Application for a sequential exchange of all pages. -- View this message in context: http://www.nabble.com/Merge-T4-Application-with-a-T5-Page-tp18000169p18070475.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Security of t:formdata
Using ClientPersistentFieldStorage (t:state:client parameter) you can 'inject' arbitary serialiable objects so it would be easy to 'inject' a huge byte array that consumes all memory. Securing this with an HMAC would not be that hard because it only requires changes to Base64ObjectInputStream. I think it would be even better if the 'packer/unpacker' would be a service so anyone wishing to create a new version can override it. Anyway, I think, security by obscurity not very good approach to secure code. Cannot agree more. Martijn Brinkers On Mon, 2008-06-23 at 14:32 +0700, Ivan Dubrov wrote: Howard Lewis Ship wrote: Although you could use this technique (severe hacking of t:formdata) to control what ComponentAction was instantiated at what point in the form submission, the security effects of this are minimal; Tapestry includes only a finite set of ComponentAction classes and each has a very specific job; the worst that you could do would be to redirect certain property updates to certain other fields, and doing even that would require deep understanding of Tapestry and of the specific application. Could it be used for DOS attacks? For example, by forcing server to instantiate something heavy. Anyway, I think, security by obscurity not very good approach to secure code. There's an outstanding issue concerning this; the best security is not to encrypt or checksum the data, but not to send it to the client at all. Instead, store the bytestream on the server, and send a token to the client. This will mean smaller rendered pages, smaller requests, and (probably) better throughput along with improved security. However, managing these server-side bytestreams (knowing how long to retain them, when to discard them, and which ones are useable with with sessions) is a challenge, especially in a cluster. In my opinion, signing is better, because it allows you to stay stateless in that case, which is good for scalability. The secret key could be generated during framework initialization, for example, so formdata will be valid until application is restarted (which is acceptable for most cases). - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [T5] how to add dojo in tapestry5?
thank you. I will try it out first. On Mon, Jun 23, 2008 at 4:13 PM, Vladimir Solomenchuk [EMAIL PROTECTED] wrote: Hi, You have two ways to do this: 1. simply include into your page/components dojo javascript libraries 2. write your own PageRenderSupport (see public void contributeMarkupRenderer(...) in TapestyModule) Tan [EMAIL PROTECTED] wrote: hi all, hi i know tapestry5 come with scriptaculous and prototype. but i wan to use something like dojo AccordionContainer in tml. may i know any way to do it? thank youl. Regards, [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/-T5--how-to-add-dojo-in-tapestry5--tp18044089p18064520.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
5.0.13 IE javascript error
Hi, after upgrade of my application to tapestry 5.0.13 I get a unknown runtime error on loading the page in IE. This is reported at line 2403 of prototype.js on the line else element.innerHTML = content.stripScripts() Does anybody have any idea how this problem can be remedied? Kind regards, Joachim -- Joachim Van der Auwera PROGS bvba, progs.be - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: T5 onActivate
Before 5.0.13, if onActivate() appeared in a subclass and its parent, Tapestry used to jump in and call both. From 5.0.13 it seems to follow the normal Java convention, ie. only the subclass method is called, so it is up to the subclass to call the parent if that's what you want. I ran a quick test a couple of days ago and I'm pretty sure that's what I observed. The result for me is that I've ditched my ProtectedPage superclass and opted for a @ProtectedPage annotation instead in much the same way as http://wiki.apache.org/tapestry/Tapestry5HowToControlAccess . It's a pretty sweet solution. Cheers, Geoff http://files.doublenegative.com.au/jumpstart On 23/06/2008, at 10:54 AM, Thiago H. de Paula Figueiredo wrote: Em Sun, 22 Jun 2008 04:09:30 -0300, Geoff Callender [EMAIL PROTECTED] escreveu: Furthermore, since T5.0.13, the parent class's onActivate() is no longer called if it's been overridden in the child class (see https://issues.apache.org/jira/browse/TAPESTRY-2311 ). Now you must ensure the child class's onActivate() calls super.onActivate(), or else the security is lost. The approach is looking pretty flimsy. I don't think so. Why would overriden methods in Tapestry page class behave differently from any other class around? I'm sorry, I just couldn't follow the reasoning yet. Thiago - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: 5.0.13 IE javascript error
please read http://tapestry.apache.org/news.html#Tapestry%205.0.13 2008/6/23 Joachim Van der Auwera [EMAIL PROTECTED]: Hi, after upgrade of my application to tapestry 5.0.13 I get a unknown runtime error on loading the page in IE. This is reported at line 2403 of prototype.js on the line else element.innerHTML = content.stripScripts() Does anybody have any idea how this problem can be remedied? Kind regards, Joachim -- Joachim Van der Auwera PROGS bvba, progs.be - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- with regards Sven Homburg http://tapestry5-components.googlecode.com http://chenillekit.googlecode.com
T5: Passing values to JavaScript function
Hi,
Passing a dynamic values from the Java page to a JavaScript function
embedded in the .tml file works fine.
However, I need to pass that values to an external (basic) JavaScript
function.
The external javacript files is attached to the page using the
IncludeJavaScriptLibrary annotation:
@IncludeJavaScriptLibrary(context:scripts/simple.js)
public class Start
{
...
public String getDynamicValue() {
// Apply logic here to calculate value
return value;
}
}
How do I pass ${prop:dynamicValue} ?
Thanks,
/Serge
--
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Re: T5: Passing values to JavaScript function
look for this small sample:
http://pastebin.com/f3c9f5056
2008/6/23 SergeEby [EMAIL PROTECTED]:
Hi,
Passing a dynamic values from the Java page to a JavaScript function
embedded in the .tml file works fine.
However, I need to pass that values to an external (basic) JavaScript
function.
The external javacript files is attached to the page using the
IncludeJavaScriptLibrary annotation:
@IncludeJavaScriptLibrary(context:scripts/simple.js)
public class Start
{
...
public String getDynamicValue() {
// Apply logic here to calculate value
return value;
}
}
How do I pass ${prop:dynamicValue} ?
Thanks,
/Serge
--
View this message in context:
http://www.nabble.com/T5%3A-Passing-values-to-JavaScript-function-tp18071973p18071973.html
Sent from the Tapestry - User mailing list archive at Nabble.com.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
--
with regards
Sven Homburg
http://tapestry5-components.googlecode.com
http://chenillekit.googlecode.com
Re: T5: Parent before child clarification
So the sub-class setupRender() overrides the base-class setupRender()? The method setupRender() is still invoked at the appropriate time. The difference is that it is not invoked twice, as it was before 5.0.13. In coding terms, what happens is that Tapestry provides an implementation of the method void setupRender(MarkupWriter writer, Event event) in the base class that invokes the base class' setupRender() method. The sub class also gets an implementation of void setupRender(MarkupWriter writer, Event event) ... the first thing it does is invoke the super implementation. In 5.0.11 and earlier, the subclass implementation of setupRender(...) would invoke the subclass' override of setupRender(). Thus, the base class would invoke it once, then the subclass would invoke it again. In 5.0.13 this was changed so that the subclass implementation of setupRender(...) would *NOT* invoke the setupRender() method; because setupRender() overrides a base class method; the base class is responsible for invoking it. This is what that documentation is referring to when it mentions the timing of the method invocation. Thus if you want the base classes' implementation to be invoked, the method override must call super.setupRender(). Hope this is a bit clearer. Then end result is that overriding render phase methods should now fit better, conceptually, with how method overrides work in ordinary Java, which is a good thing. On Fri, Jun 20, 2008 at 5:55 PM, Bill Holloway [EMAIL PROTECTED] wrote: The JIRA on this states that the overridden method will be invoked only by the parent class, not the subclass. So I have a page that inherits from a base page class. Both have setupRender() on them. I have no code in the parent class that actually invokes setupRender, but I hope it will be invoked. Will it? -- Bill @ PeoplePad - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Howard M. Lewis Ship Creator Apache Tapestry and Apache HiveMind - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
