src/java/org/mxchange/pizzaapplication/model/customer/PizzaCustomerSessionBean.java

   1 /*
   2  * Copyright (C) 2016 Roland Haeder
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU Affero General Public License as
   6  * published by the Free Software Foundation, either version 3 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU Affero General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Affero General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.mxchange.pizzaapplication.model.customer;
  18
  19 import java.text.MessageFormat;
  20 import javax.ejb.Stateless;
  21 import javax.persistence.NoResultException;
  22 import javax.persistence.Query;
  23 import org.mxchange.jcustomercore.exceptions.CustomerAlreadyRegisteredException;
  24 import org.mxchange.jcustomercore.model.customer.Customer;
  25 import org.mxchange.pizzaaplication.database.BasePizzaDatabaseBean;
  26
  27 /**
  28  * A stateless customer session bean (EJB)
  29  * <p>
  30  * @author Roland Haeder<rhaeder@cho-time.de>
  31  */
  32 @Stateless (name = "customer", description = "A bean handling customer data")
  33 public class PizzaCustomerSessionBean extends BasePizzaDatabaseBean implements PizzaCustomerSessionBeanRemote {
  34
  35         /**
  36          * Serial number
  37          */
  38         private static final long serialVersionUID = 15_624_759_104_372L;
  39
  40         @Override
  41         public Customer fillCustomerData (final Customer customer) {
  42                 throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. //NOI18N
  43         }
  44
  45         @Override
  46         public boolean isReqistered (final Customer customer) {
  47                 // Trace message
  48                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("isReqistered: customer={0} - CALLED!", customer)); //NOI18N
  49
  50                 // Paramerter customer should be valid
  51                 if (null == customer) {
  52                         // Throw NPE
  53                         throw new NullPointerException("customer is null"); //NOI18N
  54                 } else if ((customer.getCustomerId() instanceof Long) && (customer.getCustomerId() > 0)) {
  55                         // Not allowed
  56                         throw new IllegalArgumentException(MessageFormat.format("customer.customerId={0} is not allowed here.", customer.getCustomerId())); //NOI18N
  57                 } else if (customer.getCustomerContact() == null) {
  58                         // Throw NPE again
  59                         throw new NullPointerException("customer.customerContact is null"); //NOI18N
  60                 } else if (customer.getCustomerNumber() == null) {
  61                         // Customer numbers should be set, at least generate one with CustomerUtils
  62                         throw new NullPointerException("customer.customerNumber is null"); //NOI18N
  63                 } else if (customer.getCustomerNumber().length() < RateCalcAdminCustomerSessionBeanRemote.CUSTOMER_NUMBER_LENGTH) {
  64                         // To short number
  65                         throw new IllegalArgumentException(MessageFormat.format("customer.customerNumber.length={0} is shorter than expected: {1}", customer.getCustomerNumber().length(), RateCalcAdminCustomerSessionBeanRemote.CUSTOMER_NUMBER_LENGTH)); //NOI18N
  66                 }
  67
  68                 // Init query instance
  69                 Query query = this.getEntityManager().createNamedQuery("SearchCustomerByNumber", Customer.class); //NOI18N
  70
  71                 // Set parameter
  72                 query.setParameter("customerNumber", customer.getCustomerNumber()); //NOI18N
  73
  74                 // Default is not found
  75                 boolean isFound = false;
  76
  77                 // Try to find it
  78                 try {
  79                         Customer dummy = (Customer) query.getSingleResult();
  80
  81                         // Debug message
  82                         this.getLoggerBeanLocal().logDebug(MessageFormat.format("isReqistered: Customer {0} has number{1} and contact {2}", dummy.getCustomerId(), customer.getCustomerNumber(), customer.getCustomerContact().getContactId())); //NOI18N
  83
  84                         // Mark as found
  85                         isFound = true;
  86                 } catch (final NoResultException ex) {
  87                         // Not found
  88                         this.getLoggerBeanLocal().logDebug(MessageFormat.format("isReqistered: Not found: {0}", ex.getMessage())); //NOI18N
  89                 }
  90
  91                 // Trace message
  92                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("isReqistered: isFound={0} - EXIT!", isFound)); //NOI18N
  93
  94                 // Return it
  95                 return isFound;
  96         }
  97
  98         @Override
  99         public Customer registerCustomer (final Customer customer) throws CustomerAlreadyRegisteredException {
 100                 throw new UnsupportedOperationException("Registration by guests is not supported with Pizza application."); //NOI18N
 101         }
 102
 103 }