[protege-discussion] Loading an Ontology

[Jonathan Carter]

That looks like a classpath issue - the exception is reporting that it  
can't find the commons logging LogFactory class.
Check to make sure you have the right commons logging JAR in your  
classpath. I think it's Commons Logging version 1.1 that I've used  
with developing my widgets.

Hope this helps

Regards

Jonathan

Sent from my mobile

On 23 Mar 2010, at 23:27, "Qingmai Wang" <qingmai.w at gmail.com> wrote:

> Hi All,
>
>
>
> I am new to protege and also new to this discussion list. I am just  
> starting to program an JAVA GUI to manage OWL ontology using protege  
> jars. I meet some problem when I try to load a ontology from a local  
> file. Following is the code, in which a JFileChooser is used to  
> select the file .
>
>
>
> private void OpenFile() throws OntologyLoadException{
>
>       JFileChooser chooser = new JFileChooser();
>
>       FileNameExtensionFilter filter = new FileNameExtensionFilter 
> ("OWL file","OWL");
>
>       chooser.addChoosableFileFilter(filter);
>
>       int result = chooser.showOpenDialog(this);
>
>     if(result == JFileChooser.CANCEL_OPTION) return;
>
>       File file = chooser.getSelectedFile();
>
>       String path = file.getPath();
>
>       path = path.replaceAll("\\\\", "/");
>
>       String uri = "file:///" + path;
>
>       System.out.printf(uri);
>
>       JenaOWLModel owlModel = ProtegeOWL.createJenaOWLModelFromURI 
> (uri);
>
> }
>
>
>
> The Eclipse returns the following errors:
>
> in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/ 
> apache/commons/logging/LogFactory;
>
>
>
> I have try to define the String uri straightly as “String uri = "fil 
> e:///D:/work/ProtegeDeveloper/travel-saved.owl";” , it remains same  
> errors.
>
>
>
> By the way, it is really confused because it works well when I try  
> the loading process in a independent normal java main class as  
> following:
>
>
>
> public static void main(String[] args) throws OntologyLoadException {
>
>             String uri = "file:///D:/work/ProtegeDeveloper/travel- 
> saved.owl";
>
>             JenaOWLModel owlModel =  
> ProtegeOWL.createJenaOWLModelFromURI(uri);
>
> }
>
>
>
> Thanks very much if anyone could help
>
>
>
> Best regards
>
>
>
> Qingmai
>
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