} else if(output.equals("html")) {
this.output = new HtmlRuleDoclet();
} else if(output.equals("json")) {
this.output = new JsonRuleDoclet();
} else if(output.equals("text")) {
this.output = new WikiRuleDoclet();
} else if(output.equals("dojo")) {
this.output = new DojoRuleDoclet();
} else {
throw new BuildException("Unsupported doclet type");
}