[Yanel-dev] Another namespace problem with the XML resource

[Michael Wechner]

Michael Wechner schrieb:
> simon litwan schrieb:
>> i'm answering to this thread, because i think i have the same problem.
>> see thread [xml resource-type lossing namespace declaration when 
>> applying xslt]
>>
>>
>> Michael Wechner schrieb:
>>> Josias Thöny wrote:
>>>
>>>>
>>>>>>
>>>>>> However I'm not sure if this is a good solution.
>>>>>
>>>>>
>>>>>
>>>>> why not?
>>>>
>>>>
>>>> Our XMLSerializer expects that an element in the SAX stream with a 
>>>> namespace either has an attribute which declares this namespace (or 
>>>> one of the ancestors has such an attribute).
>>>> AFAIK this is not required in a SAX stream, and apparently the 
>>>> default of the Xerces XMLReader is to omit the namespace 
>>>> declaration attributes.
>>>> This has been changed by the above setFeature(...) line, but if 
>>>> someone uses our serializer in a different situation, the same 
>>>> problem may occur again.
>>>
>> i debugged a bit, and i don't think this is a problem of the 
>> seriealizer.
>> because if i don't use an xslt, the serializer gets the namespace 
>> declaration as an attribute within the startElement method. but if i 
>> add a xslt the serializer doesn't get the the namespace declaration 
>> as attribute anymore.
>> to me it seems the the namespace get lost within the 
>> xslt-transformation.
>
> btw, I have tested now
>
> http://127.0.0.1:8080/yanel/test/use-cases/namespaces.xml
>
> on Mac OS X with Java
>
> java version "1.5.0_19"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_19-b02-304)
> Java HotSpot(TM) Client VM (build 1.5.0_19-137, mixed mode, sharing)
>
> and it works, whereas it generates the following code:
>
> <?xml version="1.0"?>
> <yanel:root xmlns:yanel="http://www.wyona.org/yanel/1.0" 
> xmlns:i18n="http://www.wyona.org/yanel/i18n/1.0" 
> xmlns="http://www.w3.org/1999/xhtml" 
> xmlns:xhtml="http://www.w3.org/1999/xhtml"><foo:hugo 
> xmlns:foo="http://foo.bar" foo:dummy="susi"/>
> <yanel:hello>world</yanel:hello>
> </yanel:root>
>
> and the log says:
>
> 23146 2009-06-26 00:09:00,527 [http-8080-Processor25] WARN  
> org.wyona.yanel.core.serialization.XMLSerializer.startElement():61  - 
> DEBUG: Attribute     : xmlns:yanel, http://www.wyona.org/yanel/1.0
> 23147 2009-06-26 00:09:00,528 [http-8080-Processor25] WARN  
> org.wyona.yanel.core.serialization.XMLSerializer.startElement():61  - 
> DEBUG: Attribute     : xmlns:i18n, http://www.wyona.org/yanel/i18n/1.0
> 23147 2009-06-26 00:09:00,528 [http-8080-Processor25] WARN  
> org.wyona.yanel.core.serialization.XMLSerializer.startElement():61  - 
> DEBUG: Attribute     : xmlns, http://www.w3.org/1999/xhtml
> 23148 2009-06-26 00:09:00,529 [http-8080-Processor25] WARN  
> org.wyona.yanel.core.serialization.XMLSerializer.startElement():61  - 
> DEBUG: Attribute     : xmlns:xhtml, http://www.w3.org/1999/xhtml
> 23149 2009-06-26 00:09:00,530 [http-8080-Processor25] WARN  
> org.wyona.yanel.core.serialization.XMLSerializer.startElement():61  - 
> DEBUG: Attribute     : xmlns:foo, http://foo.bar
> 23149 2009-06-26 00:09:00,530 [http-8080-Processor25] WARN  
> org.wyona.yanel.core.serialization.XMLSerializer.startElement():61  - 
> DEBUG: Attribute     : foo:dummy, susi
>
> whereas I guess the i18n namespace comes from the
> I18n transformer inside
>
> src/impl/java/org/wyona/yanel/impl/resources/BasicXMLResource.java
>
> whereas it is not clear to me where the xhtml namespace comes from.

I just reproduced this on another mac and it also works there.

Will try again tomorrow on Linux and Windows.

Cheers

Michi
>
> Cheers
>
> Michi
>
>
>>
>> simon
>>>
>>> ok
>>>
>>>>
>>>>>
>>>>>> I guess the "correct" solution would be to implement namespace 
>>>>>> normalization in the XMLSerializer. But that might be a lot of 
>>>>>> work...
>>>>>
>>>>>
>>>>>
>>>>> have we a bug/task entry for this already?
>>>>
>>>>
>>>> I just filed a bug:
>>>>
>>>> http://bugzilla.wyona.com/cgi-bin/bugzilla/show_bug.cgi?id=5458
>>>
>>>
>>> thanks very much
>>>
>>> Michi
>>>
>>>>
>>>> Josias
>>>>
>>>>>
>>>>> Cheers
>>>>>
>>>>> Michi
>>>>>
>>>>>>
>>>>>> Josias
>>>>>>
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> Thanks
>>>>>>>
>>>>>>> Michi
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Yanel-development mailing list
>>>>>> Yanel-development at wyona.com
>>>>>> http://lists.wyona.org/cgi-bin/mailman/listinfo/yanel-development
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> Yanel-development mailing list
>>>> Yanel-development at wyona.com
>>>> http://lists.wyona.org/cgi-bin/mailman/listinfo/yanel-development
>>>
>>>
>>>
>>
>