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From Don Vawter <...@vawter.com>
Subject Re: [configuration] newbie ?, empty config
Date Sat, 08 Jan 2005 20:53:30 GMT
<sigh> One should make sure they have the most current jar before they 
start coding for that jar</sigh>
In this particular project I had configuration 1 instead of 2
When I substituted a properties file for the xml file everything worked 
so I knew it was finding the files ok.
I put the new jar (configuration 2)  and I getting closer.  Everything 
except this:

When I iterate through the keys with:

            if(config instanceof CompositeConfiguration ){
                    logger.debug("config is CompositeConfiguration");
                    Iterator it = ((CompositeConfiguration) 
config).getKeys();
                    while(it!=null && it.hasNext()){
                        logger.debug("Next key: " + it.next());
                    }
            }
it shows the first six keys and stops

DEBUG,2005-01-08 13:19:54,com.vawter.jsptags.NavBar,config is 
CompositeConfiguration
DEBUG,2005-01-08 13:19:54,com.vawter.jsptags.NavBar,Next key: imagebase
DEBUG,2005-01-08 13:19:54,com.vawter.jsptags.NavBar,Next key: urlbase
DEBUG,2005-01-08 13:19:54,com.vawter.jsptags.NavBar,Next key: 
buttons.button.image
DEBUG,2005-01-08 13:19:54,com.vawter.jsptags.NavBar,Next key: 
buttons.button.url
DEBUG,2005-01-08 13:19:54,com.vawter.jsptags.NavBar,Next key: 
buttons.button.name
DEBUG,2005-01-08 13:19:54,com.vawter.jsptags.NavBar,Next key: 
buttons.button.caption <why does it stop here>
DEBUG,2005-01-08 13:19:54,com.vawter.jsptags.NavBar,configuration 
factory is org.apache.commons.configuration.CompositeConfiguration@80669d
....

I can access the individual properties like I expect to. Perhaps I just 
don't understand how the getKeys is supposed to work.


Oliver Heger wrote:

> Don,
>
> on a first glance I can see nothing wrong in your usage of the 
> configuration API (besides the fact that you declare the config 
> variable twice: once as static field and once as local variable).
>
> Which version of [configuration] do you use?
>
> Oh, and remember to prefix the subjects of your mails with the name of 
> the affected component; otherwise they may be missed by developers.
>
> Oliver
>
> Don Vawter wrote:
>
>> I am making my first attempt to use the Configuration capabilities 
>> and am obviously doing something wrong.
>> The configuration object is not null but isEmpty() returns true.
>>
>> Any guidance would be greatly appreciated as I struggle up the 
>> learning curve.
>>
>> TIA
>>
>>
>> Here is my config.xml
>>
>> <?xml version="1.0" encoding="ISO-8859-1" ?>
>> <configuration>
>>  <hierarchicalXml 
>> fileName="/projects/svnVawter/src/com/vawter/vawter/buttons.xml"/>
>> </configuration>
>>
>> and here a code snippet:
>>
>>  private static final Logger logger = Logger.getLogger(NavBar.class);
>>        private static  ConfigurationFactory factory=null;
>>        private static URL configURL = null;
>>        private static Configuration config=null;
>>        static{
>>                try{
>>                        factory = new ConfigurationFactory();
>>                        String navfile= 
>> PropertyHandler.getProperty("navigation.config.file");
>>                        logger.debug("navigation.config.file is " + 
>> navfile);
>>                        if(navfile!=null) {
>>                            factory.setConfigurationFileName(navfile);
>>                           Configuration config = 
>> factory.getConfiguration();
>>
>>                         logger.debug("configuration factory is "+ 
>> config);
>>                        logger.debug("configuration is empty " + 
>> config.isEmpty());
>> .....
>> and here is the logger:
>>
>> DEBUG,2005-01-08 
>> 00:31:10,com.vawter.jsptags.NavBar,navigation.config.file is 
>> /projects/svnVawter/src/com/vawter/vawter/config.xml
>> DEBUG,2005-01-08 00:31:10,com.vawter.jsptags.NavBar,configuration 
>> factory is 
>> org.apache.commons.configuration.CompositeConfiguration@1d144a4
>> DEBUG,2005-01-08 00:31:10,com.vawter.jsptags.NavBar,configuration is 
>> empty true
>>
>> and finally here is the xml file
>> don@blackbox:/projects/svnVawter/src/com/vawter/vawter$ cat buttons.xml
>>
>> <?xml version="1.0" encoding="ISO-8859-1" ?>
>> <navigation>
>> <urlbase>/artisan/</urlbase>
>> <imagebase>images/</imagebase>
>> <buttons>
>> <button>
>> <name>Home</name>
>> <url></url>
>> <caption>Home</caption>
>> <image>home.png</image>
>> </button>
>> <button>
>> <name>Gallery></name>
>> <url>gallery.do</url>
>> <caption>Gallery</caption>
>> <image>gallery.png</image>
>> </button>
>> </buttons>
>> </navigation>
>>
>>
>>
>>
>>
>>
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>>
>>
>
>
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