src/java/org/mxchange/jcontacts/contact/PizzaContactSessionBean.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.jcontacts.contact;
  18
  19 import java.text.MessageFormat;
  20 import java.util.Iterator;
  21 import java.util.List;
  22 import javax.ejb.Stateless;
  23 import javax.persistence.NoResultException;
  24 import javax.persistence.Query;
  25 import org.mxchange.jcontacts.exceptions.ContactNotFoundException;
  26 import org.mxchange.pizzaaplication.database.BasePizzaDatabaseBean;;
  27 import org.mxchange.jcontacts.contact.utils.ContactUtils;
  28
  29 /**
  30  * A contact EJB
  31  * <p>
  32  * @author Roland Haeder<roland@mxchange.org>
  33  */
  34 @Stateless (name = "contact", mappedName = "ejb/stateless-pizza-contact", description = "A bean handling contact data")
  35 public class PizzaContactSessionBean extends BasePizzaDatabaseBean implements ContactSessionBeanRemote {
  36
  37         /**
  38          * Serial number
  39          */
  40         private static final long serialVersionUID = 542_145_347_916L;
  41
  42         /**
  43          * Default constructor
  44          */
  45         public PizzaContactSessionBean () {
  46         }
  47
  48         @Override
  49         public Contact findContactById (final Long contactId) throws ContactNotFoundException {
  50                 // Log trace message
  51                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: contactId={0} - CALLED!", contactId)); //NOI18N
  52
  53                 // The parameter must be valid
  54                 if (null == contactId) {
  55                         // Throw NPE
  56                         throw new NullPointerException("contactId is null"); //NOI18N
  57                 } else if (contactId < 1) {
  58                         // Not valid
  59                         throw new IllegalArgumentException(MessageFormat.format("contactId={0} is not valid", contactId)); //NOI18N
  60                 }
  61
  62                 // Get query instance
  63                 Query query = this.getEntityManager().createNamedQuery("SearchContactById", Contact.class); //NOI18N
  64
  65                 // Set parameter
  66                 query.setParameter("contactId", contactId); //NOI18N
  67
  68                 // Init contact instance
  69                 Contact contact;
  70
  71                 // Try to find a result
  72                 try {
  73                         // Find a single result
  74                         contact = (Contact) query.getSingleResult();
  75
  76                         // Log trace message
  77                         this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: Found contact={0}", contact)); //NOI18N
  78                 } catch (final NoResultException ex) {
  79                         // No result found
  80                         throw new ContactNotFoundException(contactId, ex);
  81                 }
  82
  83                 // Log trace message
  84                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: contact={0} - EXIT!", contact)); //NOI18N
  85
  86                 // Return found instance
  87                 return contact;
  88         }
  89
  90         @Override
  91         @SuppressWarnings ("unchecked")
  92         public List<Contact> getAllContacts () {
  93                 // Log trace message
  94                 this.getLoggerBeanLocal().logTrace("getAllContacts - CALLED!"); //NOI18N
  95
  96                 // Create query instance
  97                 Query query = this.getEntityManager().createNamedQuery("AllContacts", List.class); //NOI18N
  98
  99                 // Get list
 100                 List<Contact> contacts = query.getResultList();
 101
 102                 // Log trace message
 103                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("getAllContacts: contacts.size()={0} - EXIT!", contacts.size())); //NOI18N
 104
 105                 // Return it
 106                 return contacts;
 107         }
 108
 109         @Override
 110         @SuppressWarnings ("unchecked")
 111         public List<String> getEmailAddressList () {
 112                 // Log trace message
 113                 this.getLoggerBeanLocal().logTrace("getEmailAddressList - CALLED!"); //NOI18N
 114
 115                 // Create query instance
 116                 Query query = this.getEntityManager().createNamedQuery("AllContactEmailAddresses", List.class); //NOI18N
 117
 118                 // Get list
 119                 List<String> emailAddresses = query.getResultList();
 120
 121                 // Log trace message
 122                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("getEmailAddressList: emailAddresses.size()={0} - EXIT!", emailAddresses.size())); //NOI18N
 123
 124                 // Return it
 125                 return emailAddresses;
 126         }
 127
 128         @Override
 129         public boolean isContactFound (final Contact contact) {
 130                 // Log trace message
 131                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("isContactFound: contact={0} - CALLED!", contact)); //NOI18N
 132
 133                 // Parameter should be valid
 134                 if (null == contact) {
 135                         // Throw NPE
 136                         throw new NullPointerException("contact is null"); //NOI18N
 137                 } else if ((contact.getContactId() instanceof Long) && (contact.getContactId() > 0)) {
 138                         try {
 139                                 // Id set, ask other method
 140                                 return (this.findContactById(contact.getContactId()) instanceof Contact);
 141                         } catch (final ContactNotFoundException ex) {
 142                                 // Not found, should not happen
 143                                 throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is set, but not found.", contact.getContactId()), ex); //NOI18N
 144                         }
 145                 }
 146
 147                 // Default is not found
 148                 boolean isFound = false;
 149
 150                 // Get whole list
 151                 List<Contact> contacts = this.getAllContacts();
 152
 153                 // Is the list empty?
 154                 if (contacts.isEmpty()) {
 155                         // Then abort here
 156                         this.getLoggerBeanLocal().logTrace("isContactFound: No contacts registered, returning 'false' ..."); //NOI18N
 157                         return false;
 158                 }
 159
 160                 // Get iterator
 161                 Iterator<Contact> iterator = contacts.iterator();
 162
 163                 // Loop through all
 164                 while (iterator.hasNext()) {
 165                         // Get contact
 166                         Contact next = iterator.next();
 167
 168                         // Debug message
 169                         this.getLoggerBeanLocal().logDebug(MessageFormat.format("isContactFound: next={0}", next)); //NOI18N
 170
 171                         // Is same contact?
 172                         if (ContactUtils.isSameContact(contact, next)) {
 173                                 // Debug message
 174                                 this.getLoggerBeanLocal().logDebug("isContactFound: Found same contact."); //NOI18N
 175
 176                                 // Found it
 177                                 isFound = true;
 178                                 break;
 179                         }
 180                 }
 181
 182                 // Return status
 183                 return isFound;
 184         }
 185
 186         @Override
 187         public Contact updateContactData (final Contact contact, final boolean isCellphoneUnlinked, final boolean isLandlineUnlinked, final boolean isFaxUnlinked) {
 188                 // Log trace message
 189                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: contact={0},isCellphoneUnlinked={1},isLandlineUnlinked={2},isFaxUnlinked={3} - CALLED!", contact, isCellphoneUnlinked, isLandlineUnlinked, isFaxUnlinked)); //NOI18N
 190
 191                 // The contact instance must be valid
 192                 if (null == contact) {
 193                         // Throw NPE again
 194                         throw new NullPointerException("contact is null"); //NOI18N
 195                 } else if (contact.getContactId() == null) {
 196                         // Throw NPE again
 197                         throw new NullPointerException("contact.contactId is null"); //NOI18N //NOI18N
 198                 } else if (contact.getContactId() < 1) {
 199                         // Not valid
 200                         throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is not valid.", contact.getContactId())); //NOI18N
 201                 }
 202
 203                 // Set updated timestamp
 204                 this.setAllContactPhoneEntriesUpdated(contact, isCellphoneUnlinked, isLandlineUnlinked, isFaxUnlinked);
 205
 206                 // Merge cellphone, land-line and fix
 207                 Contact detachedContact = this.mergeContactData(contact);
 208
 209                 // Trace message
 210                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: detachedContact={0} - EXIT!", detachedContact)); //NOI18N
 211
 212                 // Return it
 213                 return detachedContact;
 214         }
 215
 216         @Override
 217         public Contact updateContactData (final Contact contact) {
 218                 // Log trace message
 219                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: contact={0} - CALLED!", contact)); //NOI18N
 220
 221                 // The contact instance must be valid
 222                 if (null == contact) {
 223                         // Throw NPE again
 224                         throw new NullPointerException("contact is null"); //NOI18N
 225                 } else if (contact.getContactId() == null) {
 226                         // Throw NPE again
 227                         throw new NullPointerException("contact.contactId is null"); //NOI18N //NOI18N
 228                 } else if (contact.getContactId() < 1) {
 229                         // Not valid
 230                         throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is not valid.", contact.getContactId())); //NOI18N
 231                 }
 232
 233                 // Is cell phone/land-line/fax number unlinked?
 234                 boolean isCellphoneUnlinked = (contact.getContactCellphoneNumber() == null);
 235                 boolean isLandLineUnlinked = (contact.getContactLandLineNumber() == null);
 236                 boolean isFaxUnlinked = (contact.getContactFaxNumber() == null);
 237
 238                 // Call other Method
 239                 Contact detachedContact = this.updateContactData(contact, isCellphoneUnlinked, isLandLineUnlinked, isFaxUnlinked);
 240
 241                 // Trace message
 242                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: detachedContact={0} - EXIT!", detachedContact)); //NOI18N
 243
 244                 // Return it
 245                 return detachedContact;
 246         }
 247
 248 }