PermistionDirective.java 文件源码

private TemplateSequenceModel getPerms(Environment env)
        throws TemplateModelException {
    TemplateModel model = env.getDataModel().get(PERMISSION_MODEL);
    if (model == null) {
        return null;
    }
    if (model instanceof TemplateSequenceModel) {
        return (TemplateSequenceModel) model;
    } else {
        throw new TemplateModelException(
                "'perms' in data model not a TemplateSequenceModel");
    }

}