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 findContactByEmailAddress (final String emailAddress) throws ContactNotFoundException {
  85                 // Log trace message
  86                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactByEmailAddress: emailAddress={0} - CALLED!", emailAddress)); //NOI18N
  87
  88                 // The parameter must be valid
  89                 if (null == emailAddress) {
  90                         // Throw NPE
  91                         throw new NullPointerException("emailAddress is null"); //NOI18N
  92                 } else if (emailAddress.isEmpty()) {
  93                         // Not valid
  94                         throw new IllegalArgumentException("emailAddress is empty"); //NOI18N
  95                 }
  96
  97                 // Get query instance
  98                 Query query = this.getEntityManager().createNamedQuery("SearchContactByEmailAddress", UserContact.class); //NOI18N
  99
 100                 // Set parameter
 101                 query.setParameter("emailAddress", emailAddress); //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("findContactByEmailAddress: Found contact={0}", contact)); //NOI18N
 113                 } catch (final NoResultException ex) {
 114                         // No result found
 115                         throw new ContactNotFoundException(emailAddress, ex);
 116                 }
 117
 118                 // Log trace message
 119                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactByEmailAddress: contact={0} - EXIT!", contact)); //NOI18N
 120
 121                 // Return found instance
 122                 return contact;
 123         }
 124
 125         @Override
 126         public Contact findContactById (final Long contactId) throws ContactNotFoundException {
 127                 // Log trace message
 128                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: contactId={0} - CALLED!", contactId)); //NOI18N
 129
 130                 // The parameter must be valid
 131                 if (null == contactId) {
 132                         // Throw NPE
 133                         throw new NullPointerException("contactId is null"); //NOI18N
 134                 } else if (contactId < 1) {
 135                         // Not valid
 136                         throw new IllegalArgumentException(MessageFormat.format("contactId={0} is not valid", contactId)); //NOI18N
 137                 }
 138
 139                 // Get query instance
 140                 Query query = this.getEntityManager().createNamedQuery("SearchContactById", Contact.class); //NOI18N
 141
 142                 // Set parameter
 143                 query.setParameter("contactId", contactId); //NOI18N
 144
 145                 // Init contact instance
 146                 Contact contact;
 147
 148                 // Try to find a result
 149                 try {
 150                         // Find a single result
 151                         contact = (Contact) query.getSingleResult();
 152
 153                         // Log trace message
 154                         this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: Found contact={0}", contact)); //NOI18N
 155                 } catch (final NoResultException ex) {
 156                         // No result found
 157                         throw new ContactNotFoundException(contactId, ex);
 158                 }
 159
 160                 // Log trace message
 161                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("findContactById: contact={0} - EXIT!", contact)); //NOI18N
 162
 163                 // Return found instance
 164                 return contact;
 165         }
 166
 167         @Override
 168         @SuppressWarnings ("unchecked")
 169         public List<Contact> getAllContacts () {
 170                 // Log trace message
 171                 this.getLoggerBeanLocal().logTrace("getAllContacts - CALLED!"); //NOI18N
 172
 173                 // Create query instance
 174                 Query query = this.getEntityManager().createNamedQuery("AllContacts", List.class); //NOI18N
 175
 176                 // Get list
 177                 List<Contact> contacts = query.getResultList();
 178
 179                 // Log trace message
 180                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("getAllContacts: contacts.size()={0} - EXIT!", contacts.size())); //NOI18N
 181
 182                 // Return it
 183                 return contacts;
 184         }
 185
 186         @Override
 187         @SuppressWarnings ("unchecked")
 188         public List<String> getEmailAddressList () {
 189                 // Log trace message
 190                 this.getLoggerBeanLocal().logTrace("getEmailAddressList - CALLED!"); //NOI18N
 191
 192                 // Create query instance
 193                 Query query = this.getEntityManager().createNamedQuery("AllContactEmailAddresses", List.class); //NOI18N
 194
 195                 // Get list
 196                 List<String> emailAddresses = query.getResultList();
 197
 198                 // Log trace message
 199                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("getEmailAddressList: emailAddresses.size()={0} - EXIT!", emailAddresses.size())); //NOI18N
 200
 201                 // Return it
 202                 return emailAddresses;
 203         }
 204
 205         @Override
 206         public boolean isEmailAddressRegistered (final String emailAddress) {
 207                 // Log trace message
 208                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("isEmailAddressRegistered: emailAddress={0} - CALLED!", emailAddress)); //NOI18N
 209
 210                 // The email address should be valid
 211                 if (null == emailAddress) {
 212                         // Is null
 213                         throw new NullPointerException("emailAddress is null");
 214                 } else if (emailAddress.isEmpty()) {
 215                         // Is empty
 216                         throw new IllegalArgumentException("emailAddress is empty");
 217                 }
 218
 219                 // Default is not found
 220                 boolean isFound = false;
 221
 222                 try {
 223                         // Ask other method for contact instance
 224                         Contact contact = this.findContactByEmailAddress(emailAddress);
 225
 226                         // Log debug message
 227                         this.getLoggerBeanLocal().logDebug(MessageFormat.format("isEmailAddressRegistered: Found contact={0} for emailAddress={1}", contact, emailAddress));
 228
 229                         // It is found ...
 230                         isFound = true;
 231                 } catch (final ContactNotFoundException ex) {
 232                         // @TODO Was not found, log exception for spam check?
 233                 }
 234
 235                 // Log trace message
 236                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("isEmailAddressRegistered: isFound={0} - EXIT!", isFound));
 237
 238                 // Return status
 239                 return isFound;
 240         }
 241
 242         @Override
 243         public Contact lookupContact (final Contact contact) {
 244                 // Log trace message
 245                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("lookupContact: contact={0} - CALLED!", contact)); //NOI18N
 246
 247                 // Parameter should be valid
 248                 if (null == contact) {
 249                         // Throw NPE
 250                         throw new NullPointerException("contact is null"); //NOI18N
 251                 } else if ((contact.getContactId() instanceof Long) && (contact.getContactId() > 0)) {
 252                         try {
 253                                 // Id set, ask other method
 254                                 return this.findContactById(contact.getContactId());
 255                         } catch (final ContactNotFoundException ex) {
 256                                 // Not found, should not happen
 257                                 throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is set, but not found.", contact.getContactId()), ex); //NOI18N
 258                         }
 259                 }
 260
 261                 // Default is not found
 262                 Contact foundContact = null;
 263
 264                 // Get whole list
 265                 List<Contact> contacts = this.getAllContacts();
 266
 267                 // Is the list empty?
 268                 if (contacts.isEmpty()) {
 269                         // Then abort here
 270                         this.getLoggerBeanLocal().logTrace("lookupContact: No contacts registered, returning 'false' ..."); //NOI18N
 271                         return null;
 272                 }
 273
 274                 // Get iterator
 275                 Iterator<Contact> iterator = contacts.iterator();
 276
 277                 // Loop through all
 278                 while (iterator.hasNext()) {
 279                         // Get contact
 280                         Contact next = iterator.next();
 281
 282                         // Debug message
 283                         this.getLoggerBeanLocal().logDebug(MessageFormat.format("lookupContact: next={0}", next)); //NOI18N
 284
 285                         // Is same contact?
 286                         if ((Objects.equals(contact, next)) || (ContactUtils.isSameContact(contact, next))) {
 287                                 // Debug message
 288                                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("lookupContact: Found same contact, id={0}", next.getContactId())); //NOI18N
 289
 290                                 // Found it
 291                                 foundContact = next;
 292                                 break;
 293                         }
 294                 }
 295
 296                 // Trace message
 297                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("lookupContact: foundContact={0} - EXIT!", foundContact)); //NOI18N
 298
 299                 // Return status
 300                 return foundContact;
 301         }
 302
 303         @Override
 304         public Contact updateContactData (final Contact contact, final boolean isCellphoneUnlinked, final boolean isLandlineUnlinked, final boolean isFaxUnlinked) {
 305                 // Log trace message
 306                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: contact={0},isCellphoneUnlinked={1},isLandlineUnlinked={2},isFaxUnlinked={3} - CALLED!", contact, isCellphoneUnlinked, isLandlineUnlinked, isFaxUnlinked)); //NOI18N
 307
 308                 // The contact instance must be valid
 309                 if (null == contact) {
 310                         // Throw NPE again
 311                         throw new NullPointerException("contact is null"); //NOI18N
 312                 } else if (contact.getContactId() == null) {
 313                         // Throw NPE again
 314                         throw new NullPointerException("contact.contactId is null"); //NOI18N //NOI18N
 315                 } else if (contact.getContactId() < 1) {
 316                         // Not valid
 317                         throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is not valid.", contact.getContactId())); //NOI18N
 318                 }
 319
 320                 // Set updated timestamp
 321                 this.setAllContactPhoneEntriesUpdated(contact, isCellphoneUnlinked, isLandlineUnlinked, isFaxUnlinked);
 322
 323                 // Merge cellphone, land-line and fix
 324                 Contact detachedContact = this.mergeContactData(contact);
 325
 326                 // Trace message
 327                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: detachedContact={0} - EXIT!", detachedContact)); //NOI18N
 328
 329                 // Return it
 330                 return detachedContact;
 331         }
 332
 333         @Override
 334         public Contact updateContactData (final Contact contact) {
 335                 // Log trace message
 336                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: contact={0} - CALLED!", contact)); //NOI18N
 337
 338                 // The contact instance must be valid
 339                 if (null == contact) {
 340                         // Throw NPE again
 341                         throw new NullPointerException("contact is null"); //NOI18N
 342                 } else if (contact.getContactId() == null) {
 343                         // Throw NPE again
 344                         throw new NullPointerException("contact.contactId is null"); //NOI18N //NOI18N
 345                 } else if (contact.getContactId() < 1) {
 346                         // Not valid
 347                         throw new IllegalStateException(MessageFormat.format("contact.contactId={0} is not valid.", contact.getContactId())); //NOI18N
 348                 }
 349
 350                 // Is cell phone/land-line/fax number unlinked?
 351                 boolean isCellphoneUnlinked = (contact.getContactCellphoneNumber() == null);
 352                 boolean isLandLineUnlinked = (contact.getContactLandLineNumber() == null);
 353                 boolean isFaxUnlinked = (contact.getContactFaxNumber() == null);
 354
 355                 // Call other Method
 356                 Contact detachedContact = this.updateContactData(contact, isCellphoneUnlinked, isLandLineUnlinked, isFaxUnlinked);
 357
 358                 // Trace message
 359                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("updateContactData: detachedContact={0} - EXIT!", detachedContact)); //NOI18N
 360
 361                 // Return it
 362                 return detachedContact;
 363         }
 364
 365 }