LoadExampleData.java

package org.example.service;

import java.util.ArrayList;
import java.util.List;

import org.example.domain.Address;
import org.example.domain.Contact;
import org.example.domain.Country;
import org.example.domain.Customer;
import org.example.domain.Order;
import org.example.domain.Order.Status;
import org.example.domain.OrderDetail;
import org.example.domain.Product;

import com.avaje.ebean.Ebean;
import com.avaje.ebean.EbeanServer;
import com.avaje.ebean.TxRunnable;

public class LoadExampleData {

  private static boolean runOnce;

  private static EbeanServer server = Ebean.getServer(null);

  public static synchronized void load() {

    if (runOnce) {
      return;
    }

    if (Country.find.query().findRowCount() > 0) {
      return;
    }

    final LoadExampleData me = new LoadExampleData();

    server.execute(new TxRunnable() {
      public void run() {
        me.deleteAll();
        me.insertCountries();
        me.insertProducts();
        me.insertTestCustAndOrders();
      }
    });
    runOnce = true;
  }

  public void deleteAll() {
    Ebean.execute(new TxRunnable() {
      public void run() {

        // Ebean.currentTransaction().setBatchMode(false);

        // orm update use bean name and bean properties
        // server.createUpdate(OrderShipment.class, "delete from orderShipment").execute();

        server.createUpdate(OrderDetail.class, "delete from orderDetail").execute();
        server.createUpdate(Order.class, "delete from order").execute();
        server.createUpdate(Contact.class, "delete from contact").execute();
        server.createUpdate(Customer.class, "delete from Customer").execute();
        server.createUpdate(Address.class, "delete from address").execute();

        // sql update uses table and column names
        server.createSqlUpdate("delete from o_country").execute();
        server.createSqlUpdate("delete from o_product").execute();

      }
    });
  }

  public void insertCountries() {

    server.execute(new TxRunnable() {
      public void run() {
        Country c = new Country();
        c.setCode("NZ");
        c.setName("New Zealand");
        server.save(c);

        Country au = new Country();
        au.setCode("AU");
        au.setName("Australia");
        server.save(au);
      }
    });
  }

  public void insertProducts() {

    server.execute(new TxRunnable() {
      public void run() {
        Product p = new Product();
        p.setName("Chair");
        p.setSku("C001");
        server.save(p);

        p = new Product();
        p.setName("Desk");
        p.setSku("DSK1");
        server.save(p);

        p = new Product();
        p.setName("Computer");
        p.setSku("C002");
        server.save(p);

        p = new Product();
        p.setName("Printer");
        p.setSku("C003");
        server.save(p);
      }
    });
  }

  public void insertTestCustAndOrders() {

    Ebean.execute(new TxRunnable() {
      public void run() {
        Customer cust1 = insertCustomer("Rob");
        Customer cust2 = insertCustomerNoAddress();
        insertCustomerFiona();
        insertCustomerNoContacts("NocCust");

        createOrder1(cust1);
        createOrder2(cust2);
        createOrder3(cust1);
        createOrder4(cust1);
      }
    });
  }

  public static Customer createCustAndOrder(String custName) {

    LoadExampleData me = new LoadExampleData();
    Customer cust1 = insertCustomer(custName);
    me.createOrder1(cust1);
    return cust1;
  }

  public static Order createOrderCustAndOrder(String custName) {

    LoadExampleData me = new LoadExampleData();
    Customer cust1 = insertCustomer(custName);
    return me.createOrder1(cust1);
  }

  private static int contactEmailNum = 1;

  private Customer insertCustomerFiona() {

    Customer c = createCustomer("Fiona", "12 Apple St", "West Coast Rd", 1);

    c.addContact(createContact("Fiona", "Black"));
    c.addContact(createContact("Tracy", "Red"));

    Ebean.save(c);
    return c;
  }

  public static Contact createContact(String firstName, String lastName) {
    Contact contact = new Contact();
    contact.setFirstName(firstName);
    contact.setLastName(lastName);
    String email = contact.getLastName() + (contactEmailNum++) + "@test.com";
    contact.setEmail(email.toLowerCase());
    return contact;
  }

  private Customer insertCustomerNoContacts(String name) {

    Customer c = createCustomer("Roger", "15 Kumera Way", "Bos town", 1);
    c.setName(name);

    Ebean.save(c);
    return c;
  }

  private Customer insertCustomerNoAddress() {

    Customer c = new Customer();
    c.setName("Cust NoAddress");
    c.addContact(createContact("Jack", "Black"));

    Ebean.save(c);
    return c;
  }

  private static Customer insertCustomer(String name) {
    Customer c = createCustomer(name, "1 Banana St", "P.O.Box 1234", 1);
    Ebean.save(c);
    return c;
  }

  public static Customer createCustomer(String name, String shippingStreet, String billingStreet, int contactSuffix) {

    Customer c = new Customer();
    c.setName(name);
    if (contactSuffix > 0) {
      c.addContact(new Contact("Jim" + contactSuffix, "Cricket"));
      c.addContact(new Contact("Fred" + contactSuffix, "Blue"));
      c.addContact(new Contact("Bugs" + contactSuffix, "Bunny"));
    }

    if (shippingStreet != null) {
      Address shippingAddr = new Address();
      shippingAddr.setLine1(shippingStreet);
      shippingAddr.setLine2("Sandringham");
      shippingAddr.setCity("Auckland");
      shippingAddr.setCountry(Ebean.getReference(Country.class, "NZ"));

      c.setShippingAddress(shippingAddr);
    }

    if (billingStreet != null) {
      Address billingAddr = new Address();
      billingAddr.setLine1(billingStreet);
      billingAddr.setLine2("St Lukes");
      billingAddr.setCity("Auckland");
      billingAddr.setCountry(Ebean.getReference(Country.class, "NZ"));

      c.setBillingAddress(billingAddr);
    }

    return c;
  }

  private Order createOrder1(Customer customer) {

    Product product1 = Ebean.getReference(Product.class, 1);
    Product product2 = Ebean.getReference(Product.class, 2);
    Product product3 = Ebean.getReference(Product.class, 3);

    Order order = new Order();
    order.setCustomer(customer);

    List<OrderDetail> details = new ArrayList<>();
    details.add(new OrderDetail(product1, 5, 10.50));
    details.add(new OrderDetail(product2, 3, 1.10));
    details.add(new OrderDetail(product3, 1, 2.00));
    order.setDetails(details);

    //order.addShipment(new OrderShipment());

    Ebean.save(order);
    return order;
  }

  private void createOrder2(Customer customer) {

    Product product1 = Ebean.getReference(Product.class, 1);

    Order order = new Order();
    order.setStatus(Status.SHIPPED);
    order.setCustomer(customer);

    List<OrderDetail> details = new ArrayList<>();
    details.add(new OrderDetail(product1, 4, 10.50));
    order.setDetails(details);

    //order.addShipment(new OrderShipment());

    Ebean.save(order);
  }

  private void createOrder3(Customer customer) {

    Product product1 = Ebean.getReference(Product.class, 1);
    Product product3 = Ebean.getReference(Product.class, 3);

    Order order = new Order();
    order.setStatus(Status.COMPLETE);
    order.setCustomer(customer);

    List<OrderDetail> details = new ArrayList<>();
    details.add(new OrderDetail(product1, 3, 10.50));
    details.add(new OrderDetail(product3, 40, 2.10));
    order.setDetails(details);

    //order.addShipment(new OrderShipment());

    Ebean.save(order);
  }

  private void createOrder4(Customer customer) {

    Order order = new Order();
    order.setCustomer(customer);

    //order.addShipment(new OrderShipment());

    Ebean.save(order);
  }
}