unexpected output with example

[Jason Weinstein <JW...@SeeBeyond.com>]

I am using Velocity 1.2. I am experiencing unexpected output. The example
follows. I am wondering if this bug? is resolved in more current revisions
or perhaps if I am doing something incorrectly. Any feedback would be
helpful.


Example

#set( $package = "com.hello" )

${package}

${package.replace('.','_')}

Actual Output

com.hello

${package.replace('.','_')}

Expected Output

com.hello

com_hello

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Re: unexpected output with example

[Damian Gajda <dg...@ngo.pl>]

Once again...

I've noticed some c'n'p problems :)

> public class StringTool
> {
>     public String replace(String inputStr, String oldChar, String
> newChar)
  ^^^
>     {
>         if(inputStr == null || oldChar == null || newChar == null)
                                                    ^^^
> 	{
>             return null;
> 	}
> 
>         return inputStr.replace(oldChar.charAt(0), newChar.charAt(0));
>     }
> 
> }
> 

Greetings,
-- 
Damian Gajda
Web Application Design and Consultancy
dgajda@ngo.pl
mobile +48 501 032 506



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Re: unexpected output with example

[Damian Gajda <dg...@ngo.pl>]

Welcome,

<snip>
> 
> Example
> 
> #set( $package = "com.hello" )
> 
> ${package}
> 
> ${package.replace('.','_')}

Your problem comes from introspection. Replace takes two characters
(char) as parameters, and when You write '.' in Velocity, it is treated
as String. Introspection looks for replace(String, String) and does not
find it.

Maybe You can try with creating a tool with a followng API:

${stringTool.replace($package, '.', '_')}

Implementation would be:

public class StringTool
{
    public String replace(String inputStr, String oldChar, String
oldChar)
    {
        if(inputStr == null || oldChar == null || oldChar == null)
	{
            return null;
	}

        return inputStr.replace(oldChar.charAt(0), newChar.charAt(0));
    }

}

Greetings,
-- 
Damian Gajda
Web Application Design and Consultancy
dgajda@ngo.pl
mobile +48 501 032 506


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