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 import org.mxchange.jcontacts.contact.utils.ContactUtils;
  32
  33 /**
  34  * A contact EJB
  35  * <p>
  36  * @author Roland Haeder<roland@mxchange.org>
  37  */
  38 @Stateless (name = "contact", description = "A bean handling contact data")
  39 public class PizzaContactSessionBean extends BasePizzaDatabaseBean implements ContactSessionBeanRemote {
  40
  41         /**
  42          * Serial number
  43          */
  44         private static final long serialVersionUID = 542_145_347_916L;
  45
  46         /**
  47          * Default constructor
  48          */
  49         public PizzaContactSessionBean () {
  50         }
  51
  52         @Override
  53         public Contact addContact (final Contact contact) throws ContactAlreadyAddedException {
  54                 // Log trace message
  55                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("addContact: contact={0} - CALLED!", contact)); //NOI18N
  56
  57                 // The contact instance must be valid
  58                 if (null == contact) {
  59                         // Throw NPE again
  60                         throw new NullPointerException("contact is null"); //NOI18N
  61                 } else if (contact.getContactId() instanceof Long) {
  62                         // Throw NPE again
  63                         throw new NullPointerException("contact.contactId is not null"); //NOI18N //NOI18N
  64                 } else if (this.lookupContact(contact) instanceof Contact) {
  65                         // Already found
  66                         throw new ContactAlreadyAddedException(contact);
  67                 }
  68
  69                 // Set created timestamp
  70                 contact.setContactCreated(new GregorianCalendar());
  71
  72                 // Set all created timestamps in cellphone, land-line and fax number(s)
  73                 this.setAllContactPhoneEntriesCreated(contact);
  74
  75                 // Persist it
  76                 this.getEntityManager().persist(contact);
  77
  78                 // Flush it
  79                 this.getEntityManager().flush();
  80
  81                 // Return updated instance
  82                 return contact;
  83         }
  84
  85         @Override
  86         public Contact findContactById (final Long contactId) throws ContactNotFoundException {
  87                 // Log trace message
  88                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: contactId={0} - CALLED!", contactId)); //NOI18N
  89
  90                 // The parameter must be valid
  91                 if (null == contactId) {
  92                         // Throw NPE
  93                         throw new NullPointerException("contactId is null"); //NOI18N
  94                 } else if (contactId < 1) {
  95                         // Not valid
  96                         throw new IllegalArgumentException(MessageFormat.format("contactId={0} is not valid", contactId)); //NOI18N
  97                 }
  98
  99                 // Get query instance
 100                 Query query = this.getEntityManager().createNamedQuery("SearchContactById", Contact.class); //NOI18N
 101
 102                 // Set parameter
 103                 query.setParameter("contactId", contactId); //NOI18N
 104
 105                 // Init contact instance
 106                 Contact contact;
 107
 108                 // Try to find a result
 109                 try {
 110                         // Find a single result
 111                         contact = (Contact) query.getSingleResult();
 112
 113                         // Log trace message
 114                         this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: Found contact={0}", contact)); //NOI18N
 115                 } catch (final NoResultException ex) {
 116                         // No result found
 117                         throw new ContactNotFoundException(contactId, ex);
 118                 }
 119
 120                 // Log trace message
 121                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: contact={0} - EXIT!", contact)); //NOI18N
 122
 123                 // Return found instance
 124                 return contact;
 125         }
 126
 127         @Override
 128         @SuppressWarnings ("unchecked")
 129         public List<Contact> getAllContacts () {
 130                 // Log trace message
 131                 this.getLoggerBeanLocal().logTrace("getAllContacts - CALLED!"); //NOI18N
 132
 133                 // Create query instance
 134                 Query query = this.getEntityManager().createNamedQuery("AllContacts", List.class); //NOI18N
 135
 136                 // Get list
 137                 List<Contact> contacts = query.getResultList();
 138
 139                 // Log trace message
 140                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("getAllContacts: contacts.size()={0} - EXIT!", contacts.size())); //NOI18N
 141
 142                 // Return it
 143                 return contacts;
 144         }
 145
 146         @Override
 147         @SuppressWarnings ("unchecked")
 148         public List<String> getEmailAddressList () {
 149                 // Log trace message
 150                 this.getLoggerBeanLocal().logTrace("getEmailAddressList - CALLED!"); //NOI18N
 151
 152                 // Create query instance
 153                 Query query = this.getEntityManager().createNamedQuery("AllContactEmailAddresses", List.class); //NOI18N
 154
 155                 // Get list
 156                 List<String> emailAddresses = query.getResultList();
 157
 158                 // Log trace message
 159                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("getEmailAddressList: emailAddresses.size()={0} - EXIT!", emailAddresses.size())); //NOI18N
 160
 161                 // Return it
 162                 return emailAddresses;
 163         }
 164
 165         @Override
 166         public Contact lookupContact (final Contact contact) {
 167                 // Log trace message
 168                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("isContactFound: contact={0} - CALLED!", contact)); //NOI18N
 169
 170                 // Parameter should be valid
 171                 if (null == contact) {
 172                         // Throw NPE
 173                         throw new NullPointerException("contact is null"); //NOI18N
 174                 } else if ((contact.getContactId() instanceof Long) && (contact.getContactId() > 0)) {
 175                         try {
 176                                 // Id set, ask other method
 177                                 return this.findContactById(contact.getContactId());
 178                         } catch (final ContactNotFoundException ex) {
 179                                 // Not found, should not happen
 180                                 throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is set, but not found.", contact.getContactId()), ex); //NOI18N
 181                         }
 182                 }
 183
 184                 // Default is not found
 185                 Contact foundContact = null;
 186
 187                 // Get whole list
 188                 List<Contact> contacts = this.getAllContacts();
 189
 190                 // Is the list empty?
 191                 if (contacts.isEmpty()) {
 192                         // Then abort here
 193                         this.getLoggerBeanLocal().logTrace("isContactFound: No contacts registered, returning 'false' ..."); //NOI18N
 194                         return null;
 195                 }
 196
 197                 // Get iterator
 198                 Iterator<Contact> iterator = contacts.iterator();
 199
 200                 // Loop through all
 201                 while (iterator.hasNext()) {
 202                         // Get contact
 203                         Contact next = iterator.next();
 204
 205                         // Debug message
 206                         this.getLoggerBeanLocal().logDebug(MessageFormat.format("isContactFound: next={0}", next)); //NOI18N
 207
 208                         // Is same contact?
 209                         if ((Objects.equals(contact, next)) || (ContactUtils.isSameContact(contact, next))) {
 210                                 // Debug message
 211                                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("isContactFound: Found same contact, id={0}", next.getContactId())); //NOI18N
 212
 213                                 // Found it
 214                                 foundContact = next;
 215                                 break;
 216                         }
 217                 }
 218
 219                 // Trace message
 220                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("isContactFound: foundContact={0} - EXIT!", foundContact)); //NOI18N
 221
 222                 // Return status
 223                 return foundContact;
 224         }
 225
 226         @Override
 227         public Contact updateContactData (final Contact contact, final boolean isCellphoneUnlinked, final boolean isLandlineUnlinked, final boolean isFaxUnlinked) {
 228                 // Log trace message
 229                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: contact={0},isCellphoneUnlinked={1},isLandlineUnlinked={2},isFaxUnlinked={3} - CALLED!", contact, isCellphoneUnlinked, isLandlineUnlinked, isFaxUnlinked)); //NOI18N
 230
 231                 // The contact instance must be valid
 232                 if (null == contact) {
 233                         // Throw NPE again
 234                         throw new NullPointerException("contact is null"); //NOI18N
 235                 } else if (contact.getContactId() == null) {
 236                         // Throw NPE again
 237                         throw new NullPointerException("contact.contactId is null"); //NOI18N //NOI18N
 238                 } else if (contact.getContactId() < 1) {
 239                         // Not valid
 240                         throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is not valid.", contact.getContactId())); //NOI18N
 241                 }
 242
 243                 // Set updated timestamp
 244                 this.setAllContactPhoneEntriesUpdated(contact, isCellphoneUnlinked, isLandlineUnlinked, isFaxUnlinked);
 245
 246                 // Merge cellphone, land-line and fix
 247                 Contact detachedContact = this.mergeContactData(contact);
 248
 249                 // Trace message
 250                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: detachedContact={0} - EXIT!", detachedContact)); //NOI18N
 251
 252                 // Return it
 253                 return detachedContact;
 254         }
 255
 256         @Override
 257         public Contact updateContactData (final Contact contact) {
 258                 // Log trace message
 259                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: contact={0} - CALLED!", contact)); //NOI18N
 260
 261                 // The contact instance must be valid
 262                 if (null == contact) {
 263                         // Throw NPE again
 264                         throw new NullPointerException("contact is null"); //NOI18N
 265                 } else if (contact.getContactId() == null) {
 266                         // Throw NPE again
 267                         throw new NullPointerException("contact.contactId is null"); //NOI18N //NOI18N
 268                 } else if (contact.getContactId() < 1) {
 269                         // Not valid
 270                         throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is not valid.", contact.getContactId())); //NOI18N
 271                 }
 272
 273                 // Is cell phone/land-line/fax number unlinked?
 274                 boolean isCellphoneUnlinked = (contact.getContactCellphoneNumber() == null);
 275                 boolean isLandLineUnlinked = (contact.getContactLandLineNumber() == null);
 276                 boolean isFaxUnlinked = (contact.getContactFaxNumber() == null);
 277
 278                 // Call other Method
 279                 Contact detachedContact = this.updateContactData(contact, isCellphoneUnlinked, isLandLineUnlinked, isFaxUnlinked);
 280
 281                 // Trace message
 282                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: detachedContact={0} - EXIT!", detachedContact)); //NOI18N
 283
 284                 // Return it
 285                 return detachedContact;
 286         }
 287
 288 }