src/java/org/mxchange/addressbook/model/addressbook/AddressbookSessionBean.java

   1 /*
   2  * Copyright (C) 2015 Roland Haeder
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (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 General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.mxchange.addressbook.model.addressbook;
  18
  19 import java.util.List;
  20 import javax.ejb.EJB;
  21 import javax.ejb.Stateless;
  22 import javax.persistence.Query;
  23 import org.mxchange.addressbook.exceptions.AddressbookNameAlreadyUsedException;
  24 import org.mxchange.jcoreee.database.BaseDatabaseBean;
  25 import org.mxchange.jusercore.model.login.UserLoginSessionBeanRemote;
  26 import org.mxchange.jusercore.model.user.User;
  27
  28 /**
  29  * A stateless bean handling addressbooks
  30  * <p>
  31  * @author Roland Haeder
  32  */
  33 @Stateless(name = "addressbook", mappedName = "ejb/stateless-addressbook", description = "A stateless bean for handling addressbooks")
  34 public class AddressbookSessionBean extends BaseDatabaseBean implements AddressbookSessionBeanRemote {
  35
  36         /**
  37          * Serial number
  38          */
  39         private static final long serialVersionUID = 129_857_871_287_691L;
  40
  41         /**
  42          * Login bean
  43          */
  44         @EJB(mappedName = "ejb/stateless-login")
  45         private UserLoginSessionBeanRemote loginBean;
  46
  47         @Override
  48         @SuppressWarnings("unchecked")
  49         public List<Addressbook> getUsersList(final User loggedInUser) {
  50                 // Get query instance
  51                 Query query = this.getEntityManager().createNamedQuery("AllUsersAddressbooks"); //NOI18N
  52
  53                 // Set parameter
  54                 query.setParameter("param", loggedInUser); //NOI18N
  55
  56                 // Get full list from JPA
  57                 List<Addressbook> addressbooks = query.getResultList();
  58
  59                 // Return it
  60                 return addressbooks;
  61         }
  62
  63         @Override
  64         public Addressbook createAddressbook(final Addressbook addressbook) throws AddressbookNameAlreadyUsedException {
  65                 // Is it not null?
  66                 if (null == addressbook) {
  67                         // Abort here
  68                         throw new NullPointerException("addressbook is null");
  69                 } else if (addressbook.getAddressbookUser() == null) {
  70                         // User instance is null
  71                         throw new IllegalArgumentException("addressbook.user should not be null.");
  72                 } else if (addressbook.getAddressbookName() == null) {
  73                         // Address book name not set
  74                         throw new IllegalArgumentException("addressbook.addressbookName should not be null");
  75                 } else if (addressbook.getAddressbookName().isEmpty()) {
  76                         // Address book name not set
  77                         throw new IllegalArgumentException("addressbook.addressbookName should not be empty");
  78                 } else if (this.isAddressbookNameUsed(addressbook)) {
  79                         // The assigned user already used that name
  80                         throw new AddressbookNameAlreadyUsedException(addressbook);
  81                 }
  82
  83                 // Persist it now
  84                 this.getEntityManager().persist(addressbook);
  85
  86                 // Flush it to get all data
  87                 this.getEntityManager().flush();
  88
  89                 // Return it updated
  90                 return addressbook;
  91         }
  92
  93         @Override
  94         public boolean isAddressbookNameUsed(final Addressbook addressbook) {
  95                 throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
  96         }
  97 }