is string or string array

  public String[] getValuesAsStringArray(final Resource resource, final String propertyToExtract){
        try {
            final Node node = resource.adaptTo(Node.class);
            final Property property = node.getProperty(propertyToExtract);
            final Resource childProperty = resource.getChild(propertyToExtract);
            if(property.isMultiple() && childProperty != null){
                return childProperty.adaptTo(String[].class);
            }else{
                return new String[]{ childProperty.adaptTo(String.class) };
            }
        } catch (RepositoryException e) {
            log.error("Problem accessing node information ",e);
        }
        return new String[]{""};
    }