src/org/mxchange/addressbook/validator/addressbook/AddressbookIdValidator.java

   1 /*
   2  * Copyright (C) 2015 Roland Haeder
   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.addressbook.validator.addressbook;
  18
  19 import java.text.MessageFormat;
  20 import javax.ejb.EJB;
  21 import javax.enterprise.event.Event;
  22 import javax.enterprise.inject.Any;
  23 import javax.faces.application.FacesMessage;
  24 import javax.faces.component.UIComponent;
  25 import javax.faces.context.FacesContext;
  26 import javax.faces.validator.FacesValidator;
  27 import javax.faces.validator.ValidatorException;
  28 import javax.inject.Inject;
  29 import org.mxchange.addressbook.events.AddressbookLoadedEvent;
  30 import org.mxchange.addressbook.events.LoadedAddressbookEvent;
  31 import org.mxchange.addressbook.exceptions.AddressbookNotFoundException;
  32 import org.mxchange.addressbook.model.addressbook.Addressbook;
  33 import org.mxchange.addressbook.model.addressbook.AddressbookSessionBeanRemote;
  34 import org.mxchange.jcoreee.validator.number.BaseLongValidator;
  35
  36 /**
  37  * A validator for address book id verification
  38  * <p>
  39  * @author Roland Haeder
  40  */
  41 @FacesValidator (value = "AddressbookIdValidator")
  42 public class AddressbookIdValidator extends BaseLongValidator {
  43
  44         /**
  45          * Serial number
  46          */
  47         private static final long serialVersionUID = 158_768_467_186_951_809L;
  48
  49         /**
  50          * Remote bean
  51          */
  52         @EJB (mappedName = "ejb/stateless-addressbook")
  53         private AddressbookSessionBeanRemote addressbookBean;
  54
  55         /**
  56          * An event for loading address book data loading
  57          */
  58         @Inject
  59         @Any
  60         private Event<AddressbookLoadedEvent> loadedEvent;
  61
  62         @Override
  63         public void validate (final FacesContext context, final UIComponent component, final Object value) throws ValidatorException {
  64                 // Trace message
  65                 //this.getLogger().logTrace(MessageFormat.format("validate: context={0},component={1},value={2} - CALLED!", context, component, value)); //NOI18N
  66
  67                 // All accepted, required fields
  68                 String[] requiredFileds = {"addressbookId"}; //NOI18N
  69
  70                 // Pre-validation (example: not null, not a string, empty string ...)
  71                 super.preValidate(context, component, value, requiredFileds, false);
  72
  73                 // Cast to long
  74                 Long addressbookId = (Long) value;
  75
  76                 // Is the address book id valid?
  77                 if (!this.addressbookBean.isAddressbookIdUsed(addressbookId)) {
  78                         // Is not valid
  79                         throw new ValidatorException(new FacesMessage(MessageFormat.format("No address book found with id {0}. Please check your link.", addressbookId))); //NOI18N
  80                 }
  81
  82                 // Init variable
  83                 Addressbook addressbook;
  84
  85                 // Try it
  86                 try {
  87                         // Get full data
  88                         addressbook = this.addressbookBean.getAddressbookById(addressbookId);
  89                 } catch (final AddressbookNotFoundException ex) {
  90                         // Continue to throw
  91                         throw new ValidatorException(new FacesMessage(MessageFormat.format("Cannot find address book with id {0}", addressbookId)), ex);
  92                 }
  93
  94                 // Fire event
  95                 this.loadedEvent.fire(new LoadedAddressbookEvent(addressbook));
  96
  97                 // Trace message
  98                 //this.getLogger().logTrace("validate: EXIT!"); //NOI18N
  99         }
 100 }