Java tutorial
/* * Copyright 2002-2017 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 org.springframework.integration.samples.jdbc; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; import java.util.Scanner; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.context.support.AbstractApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import org.springframework.integration.samples.jdbc.domain.Gender; import org.springframework.integration.samples.jdbc.domain.Person; import org.springframework.integration.samples.jdbc.service.PersonService; /** * Starts the Spring Context and will initialize the Spring Integration routes. * * @author Gunnar Hillert * @author Amol Nayak * @author Gary Russell * @version 1.0 * */ public final class Main { private static final Log LOGGER = LogFactory.getLog(Main.class); private Main() { } /** * Load the Spring Integration Application Context * * @param args - command line arguments */ public static void main(final String... args) { LOGGER.info("\n=========================================================" + "\n " + "\n Welcome to Spring Integration! " + "\n " + "\n For more information please visit: " + "\n http://www.springsource.org/spring-integration " + "\n " + "\n========================================================="); final AbstractApplicationContext context = new ClassPathXmlApplicationContext( "classpath:META-INF/spring/integration/*-context.xml"); context.registerShutdownHook(); final Scanner scanner = new Scanner(System.in); final PersonService personService = context.getBean(PersonService.class); LOGGER.info("\n=========================================================" + "\n " + "\n Please press 'q + Enter' to quit the application. " + "\n " + "\n========================================================="); System.out.println("Please enter a choice and press <enter>: "); System.out.println("\t1. Find person details"); System.out.println("\t2. Create a new person detail"); System.out.println("\tq. Quit the application"); System.out.print("Enter you choice: "); while (true) { final String input = scanner.nextLine(); if ("1".equals(input.trim())) { getPersonDetails(scanner, personService); } else if ("2".equals(input.trim())) { createPersonDetails(scanner, personService); } else if ("q".equals(input.trim())) { break; } else { System.out.println("Invalid choice\n\n"); } System.out.println("Please enter a choice and press <enter>: "); System.out.println("\t1. Find person details"); System.out.println("\t2. Create a new person detail"); System.out.println("\tq. Quit the application"); System.out.print("Enter you choice: "); } LOGGER.info("Exiting application...bye."); context.close(); } private static void createPersonDetails(final Scanner scanner, PersonService service) { while (true) { System.out.print("\nEnter the Person's name:"); String name = scanner.nextLine(); Gender gender; while (true) { System.out.print("Enter the Person's gender(M/F):"); String genderStr = scanner.nextLine(); if ("m".equalsIgnoreCase(genderStr) || "f".equalsIgnoreCase(genderStr)) { gender = Gender.getGenderByIdentifier(genderStr.toUpperCase()); break; } } Date dateOfBirth; SimpleDateFormat format = new SimpleDateFormat("dd/MM/yyyy"); while (true) { System.out.print("Enter the Person's Date of birth in DD/MM/YYYY format:"); String dobStr = scanner.nextLine(); try { dateOfBirth = format.parse(dobStr); break; } catch (ParseException e) { //Silently suppress and ask to enter details again } } Person person = new Person(); person.setDateOfBirth(dateOfBirth); person.setGender(gender); person.setName(name); person = service.createPerson(person); System.out.println("Created person record with id: " + person.getPersonId()); System.out.print("Do you want to create another person? (y/n)"); String choice = scanner.nextLine(); if (!"y".equalsIgnoreCase(choice)) { break; } } } /** * @param service * @param input */ private static void getPersonDetails(final Scanner scanner, final PersonService service) { while (true) { System.out.print("Please enter the name of the person and press<enter>: "); String input = scanner.nextLine(); final List<Person> personList = service.findPersonByName(input); if (personList != null && !personList.isEmpty()) { for (Person person : personList) { System.out.print( String.format("Person found - Person Id: '%d', Person Name is: '%s', Gender: '%s'", person.getPersonId(), person.getName(), person.getGender())); System.out.println( String.format(", Date of birth: '%1$td/%1$tm/%1$tC%1$ty'", person.getDateOfBirth())); } } else { System.out.println(String.format("No Person record found for name: '%s'.", input)); } System.out.print("Do you want to find another person? (y/n)"); String choice = scanner.nextLine(); if (!"y".equalsIgnoreCase(choice)) { break; } } } }