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.GregorianCalendar;
  21 import java.util.Iterator;
  22 import java.util.List;
  23 import java.util.Objects;
  24 import javax.ejb.Stateless;
  25 import javax.persistence.NoResultException;
  26 import javax.persistence.Query;
  27 import org.mxchange.jcontacts.contact.utils.ContactUtils;
  28 import org.mxchange.jcontacts.exceptions.ContactAlreadyAddedException;
  29 import org.mxchange.jcontacts.exceptions.ContactNotFoundException;
  30 import org.mxchange.pizzaaplication.database.BasePizzaDatabaseBean;
  31 /**
  32  * A contact EJB
  33  * <p>
  34  * @author Roland Haeder<roland@mxchange.org>
  35  */
  36 @Stateless (name = "contact", description = "A bean handling contact data")
  37 public class PizzaContactSessionBean extends BasePizzaDatabaseBean implements ContactSessionBeanRemote {
  38
  39         /**
  40          * Serial number
  41          */
  42         private static final long serialVersionUID = 542_145_347_916L;
  43
  44         /**
  45          * Default constructor
  46          */
  47         public PizzaContactSessionBean () {
  48         }
  49
  50         @Override
  51         public Contact addContact (final Contact contact) throws ContactAlreadyAddedException {
  52                 // Log trace message
  53                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("addContact: contact={0} - CALLED!", contact)); //NOI18N
  54
  55                 // The contact instance must be valid
  56                 if (null == contact) {
  57                         // Throw NPE again
  58                         throw new NullPointerException("contact is null"); //NOI18N
  59                 } else if (contact.getContactId() instanceof Long) {
  60                         // Throw NPE again
  61                         throw new NullPointerException("contact.contactId is not null"); //NOI18N //NOI18N
  62                 } else if (this.lookupContact(contact) instanceof Contact) {
  63                         // Already found
  64                         throw new ContactAlreadyAddedException(contact);
  65                 }
  66
  67                 // Set created timestamp
  68                 contact.setContactCreated(new GregorianCalendar());
  69
  70                 // Set all created timestamps in cellphone, land-line and fax number(s)
  71                 this.setAllContactPhoneEntriesCreated(contact);
  72
  73                 // Persist it
  74                 this.getEntityManager().persist(contact);
  75
  76                 // Flush it
  77                 this.getEntityManager().flush();
  78
  79                 // Return updated instance
  80                 return contact;
  81         }
  82
  83         @Override
  84         public Contact findContactById (final Long contactId) throws ContactNotFoundException {
  85                 // Log trace message
  86                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: contactId={0} - CALLED!", contactId)); //NOI18N
  87
  88                 // The parameter must be valid
  89                 if (null == contactId) {
  90                         // Throw NPE
  91                         throw new NullPointerException("contactId is null"); //NOI18N
  92                 } else if (contactId < 1) {
  93                         // Not valid
  94                         throw new IllegalArgumentException(MessageFormat.format("contactId={0} is not valid", contactId)); //NOI18N
  95                 }
  96
  97                 // Get query instance
  98                 Query query = this.getEntityManager().createNamedQuery("SearchContactById", Contact.class); //NOI18N
  99
 100                 // Set parameter
 101                 query.setParameter("contactId", contactId); //NOI18N
 102
 103                 // Init contact instance
 104                 Contact contact;
 105
 106                 // Try to find a result
 107                 try {
 108                         // Find a single result
 109                         contact = (Contact) query.getSingleResult();
 110
 111                         // Log trace message
 112                         this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: Found contact={0}", contact)); //NOI18N
 113                 } catch (final NoResultException ex) {
 114                         // No result found
 115                         throw new ContactNotFoundException(contactId, ex);
 116                 }
 117
 118                 // Log trace message
 119                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: contact={0} - EXIT!", contact)); //NOI18N
 120
 121                 // Return found instance
 122                 return contact;
 123         }
 124
 125         @Override
 126         @SuppressWarnings ("unchecked")
 127         public List<Contact> getAllContacts () {
 128                 // Log trace message
 129                 this.getLoggerBeanLocal().logTrace("getAllContacts - CALLED!"); //NOI18N
 130
 131                 // Create query instance
 132                 Query query = this.getEntityManager().createNamedQuery("AllContacts", List.class); //NOI18N
 133
 134                 // Get list
 135                 List<Contact> contacts = query.getResultList();
 136
 137                 // Log trace message
 138                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("getAllContacts: contacts.size()={0} - EXIT!", contacts.size())); //NOI18N
 139
 140                 // Return it
 141                 return contacts;
 142         }
 143
 144         @Override
 145         @SuppressWarnings ("unchecked")
 146         public List<String> getEmailAddressList () {
 147                 // Log trace message
 148                 this.getLoggerBeanLocal().logTrace("getEmailAddressList - CALLED!"); //NOI18N
 149
 150                 // Create query instance
 151                 Query query = this.getEntityManager().createNamedQuery("AllContactEmailAddresses", List.class); //NOI18N
 152
 153                 // Get list
 154                 List<String> emailAddresses = query.getResultList();
 155
 156                 // Log trace message
 157                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("getEmailAddressList: emailAddresses.size()={0} - EXIT!", emailAddresses.size())); //NOI18N
 158
 159                 // Return it
 160                 return emailAddresses;
 161         }
 162
 163         @Override
 164         public Contact lookupContact (final Contact contact) {
 165                 // Log trace message
 166                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("lookupContact: contact={0} - CALLED!", contact)); //NOI18N
 167
 168                 // Parameter should be valid
 169                 if (null == contact) {
 170                         // Throw NPE
 171                         throw new NullPointerException("contact is null"); //NOI18N
 172                 } else if ((contact.getContactId() instanceof Long) && (contact.getContactId() > 0)) {
 173                         try {
 174                                 // Id set, ask other method
 175                                 return this.findContactById(contact.getContactId());
 176                         } catch (final ContactNotFoundException ex) {
 177                                 // Not found, should not happen
 178                                 throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is set, but not found.", contact.getContactId()), ex); //NOI18N
 179                         }
 180                 }
 181
 182                 // Default is not found
 183                 Contact foundContact = null;
 184
 185                 // Get whole list
 186                 List<Contact> contacts = this.getAllContacts();
 187
 188                 // Is the list empty?
 189                 if (contacts.isEmpty()) {
 190                         // Then abort here
 191                         this.getLoggerBeanLocal().logTrace("lookupContact: No contacts registered, returning 'false' ..."); //NOI18N
 192                         return null;
 193                 }
 194
 195                 // Get iterator
 196                 Iterator<Contact> iterator = contacts.iterator();
 197
 198                 // Loop through all
 199                 while (iterator.hasNext()) {
 200                         // Get contact
 201                         Contact next = iterator.next();
 202
 203                         // Debug message
 204                         this.getLoggerBeanLocal().logDebug(MessageFormat.format("lookupContact: next={0}", next)); //NOI18N
 205
 206                         // Is same contact?
 207                         if ((Objects.equals(contact, next)) || (ContactUtils.isSameContact(contact, next))) {
 208                                 // Debug message
 209                                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("lookupContact: Found same contact, id={0}", next.getContactId())); //NOI18N
 210
 211                                 // Found it
 212                                 foundContact = next;
 213                                 break;
 214                         }
 215                 }
 216
 217                 // Trace message
 218                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("lookupContact: foundContact={0} - EXIT!", foundContact)); //NOI18N
 219
 220                 // Return status
 221                 return foundContact;
 222         }
 223
 224         @Override
 225         public Contact updateContactData (final Contact contact, final boolean isCellphoneUnlinked, final boolean isLandlineUnlinked, final boolean isFaxUnlinked) {
 226                 // Log trace message
 227                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: contact={0},isCellphoneUnlinked={1},isLandlineUnlinked={2},isFaxUnlinked={3} - CALLED!", contact, isCellphoneUnlinked, isLandlineUnlinked, isFaxUnlinked)); //NOI18N
 228
 229                 // The contact instance must be valid
 230                 if (null == contact) {
 231                         // Throw NPE again
 232                         throw new NullPointerException("contact is null"); //NOI18N
 233                 } else if (contact.getContactId() == null) {
 234                         // Throw NPE again
 235                         throw new NullPointerException("contact.contactId is null"); //NOI18N //NOI18N
 236                 } else if (contact.getContactId() < 1) {
 237                         // Not valid
 238                         throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is not valid.", contact.getContactId())); //NOI18N
 239                 }
 240
 241                 // Set updated timestamp
 242                 this.setAllContactPhoneEntriesUpdated(contact, isCellphoneUnlinked, isLandlineUnlinked, isFaxUnlinked);
 243
 244                 // Merge cellphone, land-line and fix
 245                 Contact detachedContact = this.mergeContactData(contact);
 246
 247                 // Trace message
 248                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: detachedContact={0} - EXIT!", detachedContact)); //NOI18N
 249
 250                 // Return it
 251                 return detachedContact;
 252         }
 253
 254         @Override
 255         public Contact updateContactData (final Contact contact) {
 256                 // Log trace message
 257                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: contact={0} - CALLED!", contact)); //NOI18N
 258
 259                 // The contact instance must be valid
 260                 if (null == contact) {
 261                         // Throw NPE again
 262                         throw new NullPointerException("contact is null"); //NOI18N
 263                 } else if (contact.getContactId() == null) {
 264                         // Throw NPE again
 265                         throw new NullPointerException("contact.contactId is null"); //NOI18N //NOI18N
 266                 } else if (contact.getContactId() < 1) {
 267                         // Not valid
 268                         throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is not valid.", contact.getContactId())); //NOI18N
 269                 }
 270
 271                 // Is cell phone/land-line/fax number unlinked?
 272                 boolean isCellphoneUnlinked = (contact.getContactCellphoneNumber() == null);
 273                 boolean isLandLineUnlinked = (contact.getContactLandLineNumber() == null);
 274                 boolean isFaxUnlinked = (contact.getContactFaxNumber() == null);
 275
 276                 // Call other Method
 277                 Contact detachedContact = this.updateContactData(contact, isCellphoneUnlinked, isLandLineUnlinked, isFaxUnlinked);
 278
 279                 // Trace message
 280                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: detachedContact={0} - EXIT!", detachedContact)); //NOI18N
 281
 282                 // Return it
 283                 return detachedContact;
 284         }
 285
 286 }