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.faces.application.FacesMessage;
  21 import javax.faces.component.UIComponent;
  22 import javax.faces.context.FacesContext;
  23 import javax.faces.validator.ValidatorException;
  24 import javax.faces.view.facelets.FaceletException;
  25 import javax.naming.Context;
  26 import javax.naming.InitialContext;
  27 import javax.naming.NamingException;
  28 import org.mxchange.addressbook.model.addressbook.AddressbookSessionBeanRemote;
  29 import org.mxchange.jcoreee.validator.number.BaseLongValidator;
  30
  31 /**
  32  * A validator for address book id verification
  33  * <p>
  34  * @author Roland Haeder
  35  */
  36 public class AddressbookIdValidator extends BaseLongValidator {
  37
  38         /**
  39          * Serial number
  40          */
  41         private static final long serialVersionUID = 158_768_467_186_951_809L;
  42
  43         /**
  44          * Remote bean
  45          */
  46         private AddressbookSessionBeanRemote addressbookBean;
  47
  48         /**
  49          * Default constructor
  50          */
  51         public AddressbookIdValidator () {
  52                 // Try it
  53                 try {
  54                         // Get context
  55                         Context context = new InitialContext();
  56
  57                         // Try to to lookup the bean
  58                         this.addressbookBean = (AddressbookSessionBeanRemote) context.lookup("ejb/stateless-addressbook");
  59                 } catch (final NamingException ex) {
  60                         // Throw again
  61                         throw new FaceletException(ex);
  62                 }
  63         }
  64
  65         @Override
  66         public void validate (final FacesContext context, final UIComponent component, final Object value) throws ValidatorException {
  67                 // Trace message
  68                 //this.getLogger().logTrace(MessageFormat.format("validate: context={0},component={1},value={2} - CALLED!", context, component, value)); //NOI18N
  69
  70                 // All accepted, required fields
  71                 String[] requiredFileds = {"addressbookId"}; //NOI18N
  72
  73                 // Pre-validation (example: not null, not a string, empty string ...)
  74                 super.preValidate(context, component, value, requiredFileds, false);
  75
  76                 // Is the address book id valid?
  77                 if (!this.addressbookBean.isAddressbookIdUsed((Long) value)) {
  78                         // Is not valid
  79                         throw new ValidatorException(new FacesMessage(MessageFormat.format("No address book found with id {0}. Please check your link.", value)));
  80                 }
  81
  82                 // Trace message
  83                 //this.getLogger().logTrace("validate: EXIT!"); //NOI18N
  84         }
  85 }