DO NOT REPLY [Bug 14150] - Allow to use any subclass of java.text.Format

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=14150

Allow <bean:write/> to use any subclass of java.text.Format





------- Additional Comments From [EMAIL PROTECTED]  2002-11-01 15:55 -------
Below is code that I think gets real close to how to implement my RFE, I've
never used reflection like this before so give it a once over. I've chanaged the
attribute formatter to formatClass as that seems more consistant and added
formatClassKey attribute. The code below goes near the top of
formatValue(Object) in org.apache.struts.taglib.bean.WriteTag. Some bean
getter/setters and the taglib defination would need to be added too.

        if (formatClass != null) {
            try {
                Class clazz;
                Constructor clazzConstructor;
                Class[] paramTypes;
                Object[] params;
                
                // Try to retrieve format string from resources by the key from
formatKey.
                if( ( formatClass==null ) && ( formatClassKey!=null ) ) {
                    formatClass = retrieveFormatString( this.formatClassKey );
                    if( formatClass!=null )
                        formatClassFromResources = true;
                }
                // Try to retrieve format string from resources by the key from
formatKey.
                if( ( formatString==null ) && ( formatKey!=null ) ) {
                    formatString = retrieveFormatString( this.formatKey );
                    if( formatString!=null )
                        formatStrFromResources = true;
                }
                
                clazz = Class.forName(formatClass);
                
                if (formatString == null) {
                    paramTypes = new Class[0];
                    params = new Object[0];
                } else {
                    paramTypes = new Class[2];
                    paramTypes[0] = String.class;
                    paramTypes[1] = Locale.class;
                    
                    params = new Object[2];
                    params[0] = formatString;
                    params[1] = locale;
                }
                
                clazzConstructor = clazz.getConstructor(paramTypes);
                format = (Format)clazzConstructor.newInstance(params);
            } catch (Exception e) {
                // TODO: What message should this be
                JspException jE = new
JspException(messages.getMessage("write.format", formatString), e);
                RequestUtils.saveException(pageContext, jE);
                throw jE;
            }
        } else {
            // Return String object as is.
// [...snip...]
        }
        if( format!=null )
            return format.format( value );
        else
            return value.toString();

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