CustomerService with a CRUD/Anemic mindset

CustomerService.java

    public void saveCustomer(String customerId, String customerFirstName, String customerLastName, 
                             String streetAddress1,String streetAddress2, String city, 
                             String stateOrProvince, String postalCode, String country,
                             String homePhone, String mobilePhone, String primaryEmailAddress, 
                             String secondaryEmailAddress) {
        Customer customer = customerDao.readCustomer(customerId);
        if (customer = =null)
        {
            customer = new Customer();
            customer.setCustomerId(customerId);
        }
        if (customerFirstName != null) {
            customer.setCustomerFirstName(customerFirstName);
        }
        if (customerLastName != null) {
            customer.setCustomerLastName(customerLastName);
        }
    }