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From Oliver Heger <oliver.he...@oliver-heger.de>
Subject Re: [configuration] recursive inclusion of xml files with fileNames tag
Date Fri, 20 Apr 2012 19:28:59 GMT
Hi Oliver,

Am 20.04.2012 08:59, schrieb Oliver Zemann:
> Hi Oliver ;)
> Thanks for your help.
>
> I tried it with the following code/config:
>
> public static void main(String[] args) {
>          CombinedConfiguration conf = null;
>          try {
>              DefaultConfigurationBuilder builder = new
> DefaultConfigurationBuilder(new File("conf/conf.xml"));
>
>              conf = builder.getConfiguration(true);
>          } catch (Exception ex) {
>              ex.printStackTrace();
>          }
>          Iterator<String>  keys = conf.getKeys();
>      }
>
> conf.xml:
> <?xml version="1.0" encoding="UTF-8"?>
> <configuration>
>
>      <configuration fileName="conf1.xml" />
>      <configuration fileName="conf2.xml" />
>      <configuration fileName="conf3.xml" />
>
> </configuration>
>
> conf1.xml:
> <?xml version="1.0" encoding="UTF-8"?>
> <conf1>
>      <name>conf1</name>
>      <xml fileName="conf1extend.xml" />
> </conf1>
>
> conf1extend.xml:
> <?xml version="1.0" encoding="UTF-8"?>
> <ext>
>      <name>extended</name>
> </ext>
>
> but i get:
> Caused by: org.apache.commons.configuration.ConfigurationRuntimeException:
> No ConfigurationProvider registered for tag name
> 	at org.apache.commons.configuration.DefaultConfigurationBuilder$ConfigurationBeanFactory.createBean(DefaultConfigurationBuilder.java:1293)
> 	at org.apache.commons.configuration.beanutils.BeanHelper.createBean(BeanHelper.java:336)
> 	... 14 more
>
> Its a simple string so i am sure this should work out of the box,
> shouldnt it? I did not find any parameter like "datatype" which i
> could pass to the config element.

The problem is the <name> element. The XML file included by the 
<configuration> element can only contain elements declaring other 
configuration sources like <xml> or <properties>. (It must conform to 
the same format as supported by DefaultConfigurationBuilder.) If you 
want to give the included configuration a name, use this syntax:

<configuration>
   <xml fileName="conf1extend.xml" config-name="conf1" />
</configuration>

Oliver

>
> Thanks for your help.
>
> Oli
>
> Am 19. April 2012 22:09 schrieb Oliver Heger<oliver.heger@oliver-heger.de>:
>> Hi Oliver,
>>
>> Am 19.04.2012 16:05, schrieb Oliver Zemann:
>>
>>> Hi,
>>>
>>> just a short question:
>>> is it possible to include recursive all xml files that are referenced
>>> by any already included xml?
>>> eg.:
>>>
>>> root.xml:
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <additional>
>>>          <xml fileName="other.xml" config-name="another"/>
>>> </additional>
>>>
>>> other.xml:
>>> <?xml version="1.0" encoding="UTF-8"?>
>>>   <xml fileName="other1.xml" config-name="another1"/>
>>> <xml fileName="other2.xml" config-name="another2"/>
>>> ...
>>>
>>> ?
>>>
>>> I tried it but they are simply ignored. Only the first recursion level
>>> (other.xml) is handled, all elements in other1.xml other2.xml ... are
>>> ignored.
>>> Can i somewhere put a recursive flag to the configuration?
>>> Thanks.
>>
>>
>> IIUC, the<configuration>  element is the one you are looking for. You can
>> use it in a configuration definition file processed by
>> DefaultConfigurationBuilder to include another definition file. This works
>> recursively.
>>
>> So rather than using<xml>  tags to include files, make use of
>> <configuration>  elements. More details can be found in the user's guide [1].
>>
>> Oliver
>>
>> [1]
>> http://commons.apache.org/configuration/userguide/howto_configurationbuilder.html#Configuration_definition_file_reference
>>
>>>
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>>
>>
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