configuration-Properties: cannot define a property based upon another one

[Konstantinos Pachopoulos <ko...@yahoo.gr>]

Hi,
Given a properties file, which contains this:
-------------------
b = asd
a = ${b}safk
-------------------
I -when reading property 'a'- get "${b}safk".

This is the program i use for reading the properties:
---------------------
import java.io.*;
import org.apache.commons.configuration.*;

public class PropsTest 
{
    public static void main(String[] args)
    {
        PropertiesConfiguration props_=new
PropertiesConfiguration();
        try {
            props_.load(new FileReader("C:/Documents
and Settings/paxosk/My Documents/a.props"));
        }
        catch(Exception e) {
            System.err.println("failed to parser
properties file... exiting/n"+
                    e.getMessage());
            System.exit(-1);
        }        
        
       
System.out.println((String)props_.getProperty("a"));  
     
    }//main
}
--------------------

What's the problem?

Thanks


      ___________________________________________________________
Yahoo! Answers - Got a question? Someone out there knows the answer. Try it
now.
http://uk.answers.yahoo.com/ 

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
For additional commands, e-mail: user-help@commons.apache.org

Re: configuration-Properties: cannot define a property based upon another one

[Oliver Heger <ol...@oliver-heger.de>]

Konstantinos Pachopoulos wrote:
> Hi,
> Given a properties file, which contains this:
> -------------------
> b = asd
> a = ${b}safk
> -------------------
> I -when reading property 'a'- get "${b}safk".
> 
> This is the program i use for reading the properties:
> ---------------------
> import java.io.*;
> import org.apache.commons.configuration.*;
> 
> public class PropsTest 
> {
>     public static void main(String[] args)
>     {
>         PropertiesConfiguration props_=new
> PropertiesConfiguration();
>         try {
>             props_.load(new FileReader("C:/Documents
> and Settings/paxosk/My Documents/a.props"));
>         }
>         catch(Exception e) {
>             System.err.println("failed to parser
> properties file... exiting/n"+
>                     e.getMessage());
>             System.exit(-1);
>         }        
>         
>        
> System.out.println((String)props_.getProperty("a"));  
>      
>     }//main
> }
> --------------------
> 
> What's the problem?
> 
> Thanks
> 
The getProperty() method does not do any variable substituation as is
pointed out in its javadocs [1]. Use the getString() method instead.

Oliver

[1]
http://commons.apache.org/configuration/apidocs/org/apache/commons/configuration/Configuration.html#getProperty(java.lang.String)

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
For additional commands, e-mail: user-help@commons.apache.org