Java tutorial
/*** * * Copyright 2014 Andrew Hall * * 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 org.statefulj.demo.ddd.customer.application.impl; import javax.annotation.Resource; import javax.servlet.http.HttpSession; import org.hibernate.exception.ConstraintViolationException; import org.springframework.stereotype.Service; import org.statefulj.demo.ddd.customer.application.CustomerApplicationService; import org.statefulj.demo.ddd.customer.domain.ContactInfoFactory; import org.statefulj.demo.ddd.customer.domain.Customer; import org.statefulj.demo.ddd.customer.domain.CustomerService; import org.statefulj.demo.ddd.customer.domain.CustomerSessionService; import org.statefulj.demo.ddd.customer.domain.RegistrationForm; import org.statefulj.demo.ddd.exception.DuplicateUserException; @Service(CustomerApplicationService.ID) class CustomerApplicationServiceImpl implements CustomerApplicationService { @Resource private CustomerService customerService; @Resource private CustomerSessionService customerSessionService; @Override public void registerAndLogin(Customer customer, RegistrationForm regForm, HttpSession session) { try { Long id = customerService.nextId(); customer.register(id, regForm.getPassword(), ContactInfoFactory.derivedFrom(regForm)); customerService.save(customer); customerSessionService.login(session, customer); } catch (Exception e) { if (e.getCause() instanceof ConstraintViolationException) { throw new DuplicateUserException(); } else { throw new RuntimeException(e); } } } }