src/java/org/mxchange/jusercore/model/email_address/AddressbookEmailChangeSessionBean.java

   1 /*
   2  * Copyright (C) 2016 quix0r
   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.jusercore.model.email_address;
  18
  19 import java.text.MessageFormat;
  20 import java.util.List;
  21 import javax.ejb.EJB;
  22 import javax.ejb.EJBException;
  23 import javax.ejb.Stateless;
  24 import javax.persistence.NoResultException;
  25 import javax.persistence.Query;
  26 import org.mxchange.jcoreee.database.BaseDatabaseBean;
  27 import org.mxchange.jusercore.model.user.UserSessionBeanRemote;
  28
  29 /**
  30  * A session bean for changing email addresses
  31  * <p>
  32  * @author Roland Haeder<roland@mxchange.org>
  33  */
  34 @Stateless (name = "email-change", mappedName = "ejb/stateless-addressbook-email-change", description = "A bean handling email changes")
  35 public class AddressbookEmailChangeSessionBean extends BaseDatabaseBean implements EmailChangeSessionBeanRemote {
  36
  37         /**
  38          * Serial number
  39          */
  40         private static final long serialVersionUID = 182_698_165_971_548L;
  41
  42         /**
  43          * User bean
  44          */
  45         @EJB
  46         private UserSessionBeanRemote userBean;
  47
  48         /**
  49          * Default constructor
  50          */
  51         public AddressbookEmailChangeSessionBean () {
  52         }
  53
  54         @Override
  55         @SuppressWarnings ("unchecked")
  56         public List<String> allQueuedAddressesAsList () {
  57                 // Trace message
  58                 this.getLoggerBeanLocal().logTrace("allQueuedAddressesAsList: CALLED!"); //NOI18N
  59
  60                 // Get named query
  61                 Query query = this.getEntityManager().createNamedQuery("AllEmailAddressChanges", List.class);
  62
  63                 // Get all entries
  64                 List<String> emailAddresses = query.getResultList();
  65
  66                 // Trace message
  67                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("allQueuedAddressesAsList: emailAddresses.size()={0} - EXIT!", emailAddresses.size())); //NOI18N
  68
  69                 // Return it
  70                 return emailAddresses;
  71         }
  72
  73         @Override
  74         public void enqueueEmailAddressForChange (final ChangeableEmailAddress emailAddress) {
  75                 // Trace message
  76                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("enqueueEmailAddressForChange: emailAddress={0} - CALLED!", emailAddress));
  77
  78                 // user should not be null
  79                 if (null == emailAddress) {
  80                         // Abort here
  81                         throw new NullPointerException("emailAddress is null"); //NOI18N
  82                 } else if (!this.userBean.ifUserExists(emailAddress.getEmailChangeUser())) {
  83                         // User does not exist
  84                         throw new EJBException(MessageFormat.format("Email change with id {0} does not exist.", emailAddress.getEmailChangeId())); //NOI18N
  85                 } else if (this.isEmailAddressEnqueued(emailAddress.getEmailAddress())) {
  86                         // Email address is already enqueued
  87                         throw new EJBException(MessageFormat.format("Email address {0} is already enqueued.", emailAddress.getEmailAddress()));
  88                 }
  89
  90                 throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
  91         }
  92
  93         @Override
  94         public boolean isEmailAddressEnqueued (final String emailAddress) {
  95                 // Trace message
  96                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("isEmailAddressEnqueued: emailAddress={0} - CALLED!", emailAddress)); //NOI18N
  97
  98                 // Create query instance
  99                 Query query = this.getEntityManager().createNamedQuery("SearchEmailChangeByEmail"); //NOI18N
 100
 101                 // Add email address as parameter
 102                 query.setParameter("email", emailAddress); //NOI18N
 103
 104                 // Initialize variable
 105                 boolean isFound = false;
 106
 107                 // Try it
 108                 try {
 109                         // Try to get single result
 110                         ChangeableEmailAddress dummy = (ChangeableEmailAddress) query.getSingleResult();
 111
 112                         // Found it
 113                         isFound = true;
 114                 } catch (final NoResultException ex) {
 115                         // Log it
 116                         this.getLoggerBeanLocal().logException(ex);
 117                 }
 118
 119                 // Trace message
 120                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("isEmailAddressEnqueued: isFound={0} - EXIT!", isFound)); //NOI18N
 121
 122                 // Return it
 123                 return isFound;
 124         }
 125
 126         @Override
 127         public void updateEmailAddress (final ChangeableEmailAddress emailAddress) {
 128                 // Trace message
 129                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateEmailAddress: emailAddress={0} - CALLED!", emailAddress));
 130
 131                 // user should not be null
 132                 if (null == emailAddress) {
 133                         // Abort here
 134                         throw new NullPointerException("emailAddress is null"); //NOI18N
 135                 } else if (emailAddress.getEmailChangeId() == null) {
 136                         // Throw NPE again
 137                         throw new NullPointerException("emailAddress.emailChangeId is null"); //NOI18N
 138                 } else if (emailAddress.getEmailChangeId() < 1) {
 139                         // Not valid
 140                         throw new IllegalArgumentException(MessageFormat.format("emailAddress.emailChangeId={0} is not valid.", emailAddress.getEmailChangeId())); //NOI18N
 141                 } else if (!this.userBean.ifUserExists(emailAddress.getEmailChangeUser())) {
 142                         // User does not exist
 143                         throw new EJBException(MessageFormat.format("Email change with id {0} does not exist.", emailAddress.getEmailChangeId())); //NOI18N
 144                 } else if (!this.isEmailAddressEnqueued(emailAddress.getEmailAddress())) {
 145                         // Email address is not enqueued
 146                         throw new EJBException(MessageFormat.format("Email address {0} is not enqueued.", emailAddress.getEmailAddress()));
 147                 }
 148
 149                 throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
 150         }
 151
 152 }