Loading a Groovy Script from another Script

[Andreas Schaefer]

When I try to load a Groovy script using xwiki.parseGroovyFromPage()  
then I fail when this Script is enclosed inside '{{groovy}}'. This  
means I have to use two different documents when I want to use the  
same document to be loaded by XWiki and by xwiki.parseGroovyFromPage()  
because one needs the be enclosed by '{{groovy}} and the other can't.

Isn't there a way to remove '{{groovy}}' when parsed so that the  
scripts can be used for both?

In addition the 'GroovyScriptEngineImpl' which is used for the Binding  
does throw a NoSuchPropertyException when a property is not available.  
This makes it cumbersome to test for properties and add them if not  
already put inside. For example I need some objects over and over like  
'BlogParams' and so I would like to store them inside the bindings. In  
order to avoid the exception I either have to catch the Exception  
(time consuming) or I need to get the properties map and check if the  
property is already added to the map.
Is there a better way to do that?

Cheers - Andy
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[Sergiu Dumitriu-2]

On 11/01/2009 09:19 PM, Andreas Schaefer wrote:
> When I try to load a Groovy script using xwiki.parseGroovyFromPage()
> then I fail when this Script is enclosed inside '{{groovy}}'. This
> means I have to use two different documents when I want to use the
> same document to be loaded by XWiki and by xwiki.parseGroovyFromPage()
> because one needs the be enclosed by '{{groovy}} and the other can't.
>
> Isn't there a way to remove '{{groovy}}' when parsed so that the
> scripts can be used for both?

You could make it look like a groovy comment:

// {{groovy}}
content here
// {{/groovy}}

The problem is that the first // will be printed when viewing the page.

Or, we can change parseGroovyFromPage to trim the groovy markers.

> In addition the 'GroovyScriptEngineImpl' which is used for the Binding
> does throw a NoSuchPropertyException when a property is not available.
> This makes it cumbersome to test for properties and add them if not
> already put inside. For example I need some objects over and over like
> 'BlogParams' and so I would like to store them inside the bindings. In
> order to avoid the exception I either have to catch the Exception
> (time consuming) or I need to get the properties map and check if the
> property is already added to the map.
> Is there a better way to do that?
>
> Cheers - Andy

--
Sergiu Dumitriu
http://purl.org/net/sergiu/
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[Ludovic Dubost-2]

Hi Andreas,

I'm not sure why you would want both the parseGroovyFromPage and the
script in {{groovy}} tags.

The parseGroovyFromPage is intended to instanciate an object from the
class in the page.
Now you can load groovy in groovy so you can have a script in {{groovy}}
tags load a script coming from a page.

If the use case makes sense, it would be needed to strip out the
{{groovy}} tags in the core becore compiling it.
You can try using parseGroovyFromString to do that yourself.

I cannot really help on the GroovyScriptEngineImpl question

Ludovic

Andreas Schaefer a écrit :

> When I try to load a Groovy script using xwiki.parseGroovyFromPage()  
> then I fail when this Script is enclosed inside '{{groovy}}'. This  
> means I have to use two different documents when I want to use the  
> same document to be loaded by XWiki and by xwiki.parseGroovyFromPage()  
> because one needs the be enclosed by '{{groovy}} and the other can't.
>
> Isn't there a way to remove '{{groovy}}' when parsed so that the  
> scripts can be used for both?
>
> In addition the 'GroovyScriptEngineImpl' which is used for the Binding  
> does throw a NoSuchPropertyException when a property is not available.  
> This makes it cumbersome to test for properties and add them if not  
> already put inside. For example I need some objects over and over like  
> 'BlogParams' and so I would like to store them inside the bindings. In  
> order to avoid the exception I either have to catch the Exception  
> (time consuming) or I need to get the properties map and check if the  
> property is already added to the map.
> Is there a better way to do that?
>
> Cheers - Andy
> _______________________________________________
> devs mailing list
> [hidden email]
> http://lists.xwiki.org/mailman/listinfo/devs
>
>  

--
Ludovic Dubost
Blog: http://blog.ludovic.org/
XWiki: http://www.xwiki.com
Skype: ldubost GTalk: ldubost

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