Re: Teething troubles

Tim Pizey <[email protected]> Fri, 9 Mar 2012 10:14:27 +0000
Newsgroups	gmane.comp.web.freemarker.devel
Message-ID	<CAArDntibE-TANkwW7nnZ4voOMsY40QDszEqu7u07fCUPMYR-Lw@mail.gmail.com>
Hi Daniel,

First thank you for both your quick responses.

On 8 March 2012 19:39, Daniel Dekany wrote:
> Thursday, March 8, 2012, 6:52:33 PM, Tim Pizey wrote:
>>
>> I have used the binary cavalary.jar from
>> http://freemarker.sourceforge.net/usCavalry.html
>> to convert my velocity templates.
>> This has left me with Velocity style variables eg
>> ${table.TableInfo.Category.Name}
>>>From the above page: "Also note that FreeMarker uses the Java built-in
>> Beans introspection, so - contrary to Velocity - it completely adheres
>> to introspection rules."
>
> It's the mistake of usCavalry, I suppose. It should be
> ${table.tableInfo.category.name}
>
>> It also converts colours into tags: <body bgcolor="<#call dddddd>" id="top">.
>
> I guess that's because the *Velocity* parser thinks #dddddd is a macro
> call. But when it doesn't find such a macro on runtime, it just prints
> #dddddd. But the translator tool can't decide that no such macro will
> be available on runtime (or can it?), so probably it should use some
> heuristics to spot color codes.
>
>> I am unable to contribute fixes as this code is not in the source tree.
>
> I don't know where the source code is either... The tar.gz contains
> two .java-s, yes. But I think the tricks happens inside
> org.apacahe.velocity, that Jonathan has patched, and I don't see that
> patch anywhere. It's my quick conclusion anyway.
>
> There's also a tools/vel2ftl in the SVN repo. I have no idea what's
> that, or if it works... But it surely doesn't look like usCavalry.
>
> I will have to ask Jonathan...

On 8 March 2012 22:37, Daniel Dekany <[email protected]> wrote:
> The author of usCavalry says he doesn't know where the source is...
> So, the best is probably trying tools/vel2ftl from the SVN repo.

Thanks.

>> So my current hope is to modify BeansWrapper to understand Velocity
>> style bean notation.
>
> Don't do that... BeansWrapper uses standrad JavaBeans rules. Changing
> that would be rather annoying for anyone who wants to work with the
> templates later.

Sure, I do not intend to replace, but to extend into my own VelocityBeanWrapper.
(though I think there may be others who would like to be able to use
both Sun and
Velocity method notation)

>> I have checked out the source: in Eclipse I had to change the
>> configuration to only warn on restricted access.
>
> Um... what's that again?

Apparently since java 1.5 overriding methods from classes in RT.jar
gives a problem. This can be overridden in eclipse by settting
Preferences> Java>Compiler>Errors/Warnings>Deprecated and Restricted
API> Forbidden reference(access rules) to warning rather than error.

>> Building from source
>> I documented my fix for ant/ivy on ubuntu at:
>>
>> http://stackoverflow.com/questions/1066976/building-freemarker-from-source
>
> The current production version of FreeMarker, 2.3.x, with doesn't use
> Ivy. Please use the SVN repo, not GIT. GIT contains 2.4, which is
> unreleased.

I was building from
https://freemarker.svn.sourceforge.net/svnroot/freemarker/trunk/freemarker
so I should be using
https://freemarker.svn.sourceforge.net/svnroot/freemarker/branches/2.3/freemarker

>> My main motivation is to be able to use beans such as
>> ${table.TableInfo.Category.Name}  to access a java object which I have
>> placed in the root (context)
>> with a name of table and for
>> table.getTableInfo().getCategory().getName() to be discovered in that
>> object.
>>
>> Which direction should I turn?
>
> This has to be fixed in the converter. I'm not sure if I can contact
> Jonathan (the author) and that he will do anything within a reasonable
> time frame. So... maybe you should just do some regexp magic and
> replace those capital letters after the dots. I don't know how many
> templates do you have, however. But I'm certain nothing will translate
> Velocity to FreeMarker perfectly... a tool may saves you from most
> mechanical work, but you still will have to go through the templates
> and change this and that, unless the Velocity templates were extremely
> simple.

thanks again for all your advice
Tim






-- 
Tim Pizey
http://pizey.net/~timp

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