*
* @return The string
*/
public final String getString()
{
final Localizer localizer = getLocalizer();
// Make sure we have a localizer before commencing
if (getLocalizer() == null)
{
if (component != null)
{
setLocalizer(component.getLocalizer());
}
else
{
throw new IllegalStateException("No localizer has been set");
}
}
// Make sure we have the locale
if (locale == null)
{
locale = Session.get().getLocale();
}
String value = null;
// Substitute any parameters if necessary
Object[] parameters = getParameters();
if (parameters == null)
{
// Get the string resource, doing any property substitutions as part
// of the get operation
value = localizer.getString(getResourceKey(), component, model, defaultValue);
if (value == null)
{
value = defaultValue;
}
}
else
{
// Get the string resource, doing not any property substitutions
// that has to be done later after MessageFormat
value = localizer.getString(getResourceKey(), component, null, defaultValue);
if (value == null)
{
value = defaultValue;
}
if (value != null)
{
// Build the real parameters
Object[] realParams = new Object[parameters.length];
for (int i = 0; i < parameters.length; i++)
{
if (parameters[i] instanceof IModel)
{
realParams[i] = ((IModel<?>)parameters[i]).getObject();
}
else if (model != null && parameters[i] instanceof String)
{
realParams[i] = PropertyVariableInterpolator.interpolate(
(String)parameters[i], model.getObject());
}
else
{
realParams[i] = parameters[i];
}
}
if (model != null)
{
// First escape all substitute properties so that message format doesn't try to
// parse that.
value = Strings.replaceAll(value, "${", "$'{'").toString();
}
// Apply the parameters
final MessageFormat format = new MessageFormat(value, component != null
? component.getLocale() : locale);
value = format.format(realParams);
if (model != null)
{
// un escape the substitute properties
value = Strings.replaceAll(value, "$'{'", "${").toString();
// now substitute the properties
value = localizer.substitutePropertyExpressions(component, value, model);
}
}
}
// Return the string resource