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From Michael Robinson <est.ergo....@gmail.com>
Subject Re: [Configuration] Call me a moron, but I just can't make it work!
Date Tue, 15 Jul 2008 03:04:49 GMT

WAR IS PEACE
FREEDOM IS SLAVERY
IGNORANCE IS STRENGTH
	-- George Orwell (1903 - 1950), "1984"

On 15/07/2008, at 7:40 AM, Oliver Heger wrote:

> simon.kitching@chello.at schrieb:
>> Michael Robinson schrieb:
>>> Hi,
>>>
>>> I'm writing a program that must load, search, edit and save Mac OS  
>>> X plist files.
>>>
>>> I was attempting to use apple's NS* foundation classes, but I  
>>> couldn't work out how to write to the plist files (maybe I'm just  
>>> stupid).
>>>
>>> I searched around the internet and was overjoyed to find  
>>> apache.commons.configuration.
>>>
>>> I've played with it for the past few days, trying to figure out  
>>> how I'm meant to get data out of the plist files I'm working with.
>> Have you looked at the unit tests for the configuration project?
>> Commons projects generally have pretty good unit test coverage,  
>> which means that there is almost certainly an example of reading  a  
>> plist file and extracting a value from it in there somewhere.
>> In general, the unit tests for a project are a good source of  
>> examples when the explicit user examples and tutorials don't cover  
>> what you need to do.
>> The unit tests can be fetched from the Apache subversion system  
>> using the url that is in the left-hand navigation bar.
>> Regards,
>> Simon
>
> You can find the test class for XMLPropertyListConfiguration at [1].  
> It reads a test file [2] and evaluates the properties contained.
>
> I assume your concrete problem is due to the fact that the value of  
> the "SandwichFillings" key is an array, which obviously complicates  
> things. Have a look at the testNestedArray() method in [1], which  
> deals with nested arrays.
>
> Querying the value of an array should result in a List. You can dump  
> the content of this list to see how it is structured.
>
> HTH
> Oliver
>
> [1] http://svn.apache.org/repos/asf/commons/proper/configuration/trunk/src/test/org/apache/commons/configuration/plist/TestXMLPropertyListConfiguration.java
> [2] http://svn.apache.org/repos/asf/commons/proper/configuration/trunk/conf/test.plist.xml
>
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>

I've removed that line from the plist.xml file, and it loads now.

I should be able to learn enough from the test methods now, I don't  
need that line.

Again, thank you very much!


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