tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Xavier Dury <kal...@hotmail.com>
Subject RE: Using EL expressions in an ObjectFactory
Date Mon, 16 Sep 2013 07:03:30 GMT
Hi,

I switched to org.apache.tomcat:tomcat-jasper-el:8.0.0-RC1 as javax.el 3.0 implementation
and tested with the following code:

ELProcessor processor = new ELProcessor();
processor.getELManager().importClass("java.io.File");
processor.eval("File('./')");

but I get the following error:

javax.el.ELException: Function ':File' not found
	at org.apache.el.parser.AstFunction.getValue(AstFunction.java:136)
	at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:188)
	at javax.el.ELProcessor.getValue(ELProcessor.java:129)
	at javax.el.ELProcessor.eval(ELProcessor.java:115)
	at org.apache.naming.factory.ExpressionFactoryTest.elImplementationShouldWork(ExpressionFactoryTest.java:43)

Are methods importClass, importStatic and importPackage on ELManager already implemented in
apache EL?

Regards,

Xavier

----------------------------------------
> Subject: Re: Using EL expressions in an ObjectFactory
> From: dmikusa@gopivotal.com
> Date: Fri, 13 Sep 2013 15:38:29 -0400
> To: users@tomcat.apache.org
>
> On Sep 13, 2013, at 3:27 AM, Xavier Dury <kalgon@hotmail.com> wrote:
>
>> When I try the following:
>>
>> ELProcessor processor = new ELProcessor();
>> processor.getELManager().importClass("java.io.File");
>> processor.eval("File('./')");
>>
>> I get javax.el.ELException: java.lang.IllegalArgumentException: Cannot convert ./
of type class java.lang.String to class java.net.URI.
>>
>> I'm using glassfish javax.el 3.0 implementation for my tests. Maybe the problem comes
from this specific implementation.
>
> Yes, that would be the problem. I've noticed the same behavior w/GlassFish's EL 3.0 implementation.
Try building Tomcat trunk and using it's implementation or using the next Tomcat 8 RC when
it's available. Neither should have that problem.
>
> Dan
>
>
>>
>> ----------------------------------------
>>> Subject: Re: Using EL expressions in an ObjectFactory
>>> From: dmikusa@gopivotal.com
>>> Date: Thu, 12 Sep 2013 17:10:21 -0400
>>> To: users@tomcat.apache.org
>>>
>>> On Sep 12, 2013, at 7:58 AM, Xavier Dury <kalgon@hotmail.com> wrote:
>>>
>>>> Ok,
>>>>
>>>> I fixed the styling and the documentation. If anything else must be changed,
don't hesitate.
>>>
>>> In your docs, you state the following remark...
>>>
>>> "Try to avoid overloaded methods/constructors as much as possible in EL 3.0 expression
as the ELProcessor will use the first one it will find by reflection."
>>>
>>> Can you clarify what you mean by this? There was a problem in RC-1 that sounds
similar, but it's been fixed.
>>>
>>> https://issues.apache.org/bugzilla/show_bug.cgi?id=55483
>>>
>>> Is this a problem in trunk? Point being, if you're seeing an issue with EL 3.0,
we should try to fix it.
>>>
>>> Dan
>>>
>>>
>>>> ----------------------------------------
>>>>> Date: Thu, 12 Sep 2013 12:01:26 +0100
>>>>> From: markt@apache.org
>>>>> To: users@tomcat.apache.org
>>>>> Subject: Re: Using EL expressions in an ObjectFactory
>>>>>
>>>>> On 12/09/2013 11:49, Xavier Dury wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I implemented a simple ExpressionFactory @
>>>>>> https://github.com/kalgon/expression-factory.
>>>>>>
>>>>>> I would love to see this ExpressionFactory next to
>>>>>> org.apache.naming.factory.BeanFactory in tomcat.
>>>>>
>>>>> No objections in principle.
>>>>>
>>>>> Haven't looked at the new code in detail. A few initial observations:
>>>>> - I'm assuming this is a contribution as per section 5 of the Apache
>>>>> License, version 2.0
>>>>> - There is no documentation
>>>>> - Tomcat code standards use 4 spaces for indents, not tabs
>>>>> - Some @Override markers look to be missing
>>>>>
>>>>> Mark
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
> 		 	   		  
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org


Mime
View raw message