public CharsetMapper() 
{
    // ---------------------------------------------------------- Constructors
        this(DEFAULT_RESOURCE);
}

Construct a new CharsetMapper using the default properties resource.

 public CharsetMapper(String name) 
{
        try {
            InputStream stream =
              this.getClass().getResourceAsStream(name);
            map.load(stream);
            stream.close();
        } catch (Throwable t) {
            throw new IllegalArgumentException(t.toString());
        }
}

Construct a new CharsetMapper using the specified properties resource.

Parameters:

name - Name of a properties resource to be loaded

Throws:

IllegalArgumentException - if the specified properties resource could not be loaded for any reason.

exception: IllegalArgumentException - if the specified properties resource could not be loaded for any reason.

 public  void addCharsetMappingFromDeploymentDescriptor(String locale,
    String charset) 
{
        map.put(locale, charset);
}

The deployment descriptor can have a locale-encoding-mapping-list element which describes the webapp's desired mapping from locale to charset. This method gets called when processing the web.xml file for a context

 public String getCharset(Locale locale) 
{
    // ------------------------------------------------------- Public Methods
        // Match full language_country_variant first, then language_country, 
        // then language only
        String charset = map.getProperty(locale.toString());
        if (charset == null) {
            charset = map.getProperty(locale.getLanguage() + "_" 
                    + locale.getCountry());
            if (charset == null) {
                charset = map.getProperty(locale.getLanguage());
            }
        }
        return (charset);
}

Calculate the name of a character set to be assumed, given the specified Locale and the absence of a character set specified as part of the content type header.