Seam Text: message format

[mars1412]

in the .properties file, I have a text that includes standard java message formatting - e.g.

mtr.test.param.format=string {1} currency {0,number,#.##} integer {0,number,integer}.

in the web-page i use the following code to generate the output:

 <h:outputFormat value="#{messages['mtr.test.param.format']}">
 <f:param value="3.145" />
 <f:param value="a disturbance in the Force" />
 </h:outputFormat>

but the rendered string is:

string a disturbance in the Force currency 3.145 integer 3.145.

why does the #.## not work with h:outputFormat?

is this my mistake, or does h:outputFormat not support all java message format identifiers?
http://java.sun.com/javase/6/docs/api/java/text/MessageFormat.html

thanks in advance

[pmuir]

Ask on a JSF forum.

[mars1412]

well, I asked it on a JSF forum - no reply
however, I wrote a simple sample application with JSF on JBoss without SEAM and it worked as expected (but I used jsp instead of facelets)

anyway

I just debugged into the SEAM source and found out, that the problem is, that the messages component (org.jboss.seam.international.Messages) calls SeamResourceBundle.getString() which in turn calls Interpolator.interpolate() before returning the string

so I wrote another simple SEAM example:

String source = "{0,number,#.#}";
String interpolated = Interpolator.instance().interpolate(source);
System.out.println("soruce: '"+source+"'");
System.out.println("interpolated: '"+interpolated+"'");

which prints the following output on stdout:

17:02:00,133 INFO [STDOUT] soruce: '{0,number,#.#}'
17:02:00,133 INFO [STDOUT] interpolated: '{0}'

next test was to create a simple java file, that does following:

String expr = "{0,number,#.##}";
String value = new MessageFormat(expr, java.util.Locale.getDefault()).format(null);
System.out.println("expr : "+expr);
System.out.println("value: "+value);

which results in:

expr : {0,number,#.##}
value: {0}

so now I know why it does not work, but I'm not sure what to do about it.

• 
  
• Is it a problem of the JRE?
  it seems strange to me that format() changes my string, although I do not pass any parameters..
  
• Or should Seam's Interpolator.interpolate() not call
  MessageFormat.format() if there are no parameters?
  

[pmuir]

Please file a jira issue, we'll need to look at this in detail.

[mars1412]

created jira: http://jira.jboss.org/jira/browse/JBSEAM-2197