de.olivergierke.whoops.customer.CustomerServiceImpl.java Source code

Introduction

Here is the source code for de.olivergierke.whoops.customer.CustomerServiceImpl.java

Source

/*
 * Copyright 2011-2013 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package de.olivergierke.whoops.customer;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;

/**
 * Implementation of {@link CustomerService}.
 * 
 * @author Oliver Gierke
 */
@Service
class CustomerServiceImpl implements CustomerService {

    private final CustomerNumberGenerator generator = new CustomerNumberGenerator();
    private final CustomerRepository repository;

    /**
     * Creates a new {@link CustomerServiceImpl}.
     * 
     * @param repository must not be {@literal null}.
     */
    @Autowired
    public CustomerServiceImpl(CustomerRepository repository) {

        Assert.notNull(repository);
        this.repository = repository;
    }

    /*
     * (non-Javadoc)
     * @see de.olivergierke.whoops.customer.CustomerService#createCustomer(java.lang.String, java.lang.String)
     */
    public Customer createCustomer(String firstname, String lastname) {

        Assert.hasText(firstname, "Firstname must not be null or empty!");
        Assert.hasText(lastname, "Lastname must not be null or empty!");

        CustomerNumber number = generator.generateCustomerNumber();
        Customer customer = new Customer(firstname, lastname, number);

        return repository.save(customer);
    }
}