// Location might be null
String subexpression = expression;
int colonx = expression.indexOf(':');
BindingFactory factory = null;
if (colonx > 0)
{
String prefix = expression.substring(0, colonx);
factory = factories.get(prefix);
if (factory != null)
subexpression = expression.substring(colonx + 1);
}
if (factory == null)
factory = factories.get(defaultPrefix);
// And if that's null, what then? We assume that the default prefix is a valid prefix,
// or we'll get an NPE below and report it like any other error.
try
{
return factory.newBinding(interner.intern(description), container, component, subexpression, location);
} catch (Exception ex)
{
throw new TapestryException(String.format("Could not convert '%s' into a component parameter binding: %s", expression, ExceptionUtils.toMessage(ex)), location, ex);
}
}