src/org/mxchange/jcoreee/validator/number/BaseLongValidator.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.jcoreee.validator.number;
  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.Validator;
  24 import javax.faces.validator.ValidatorException;
  25 import org.mxchange.jcoreee.validator.BaseObjectValidator;
  26
  27 /**
  28  * A general number value validator.
  29  * <p>
  30  * @author Roland Haeder<roland@mxchange.org>
  31  */
  32 public abstract class BaseLongValidator extends BaseObjectValidator implements Validator {
  33
  34         /**
  35          * Serial number
  36          */
  37         private static final long serialVersionUID = 25_481_878_590_589_321L;
  38
  39         @Override
  40         public void preValidate (final FacesContext context, final UIComponent component, final Object value, final String[] requiredFields) throws ValidatorException {
  41                 // Trace message
  42                 //this.getLogger().logTrace(MessageFormat.format("preValidate: context={0},component={1},value={2},requiredFields={3} - CALLED!", context, component, value, Arrays.toString(requiredFields))); //NOI18N
  43
  44                 // Pre-validate
  45                 super.preValidate(context, component, value, requiredFields);
  46
  47                 // Get client id and init message + key
  48                 String clientId = component.getClientId();
  49                 FacesMessage facesMessage = null;
  50                 String requiredMessage;
  51
  52                 // So far all fine, no check if the field is fine
  53                 for (final String field : requiredFields) {
  54                         // Debug message
  55                         //this.getLogger().logDebug(MessageFormat.format("preValidate: field={0},clientId={1}", field, clientId)); //NOI18N
  56
  57                         // Is it the same?
  58                         if (clientId.endsWith(field)) {
  59                                 // Compare value's type
  60                                 if (!(value instanceof Long)) {
  61                                         // Generate message
  62                                         requiredMessage = MessageFormat.format("Field {0} is not Long.", field); //NOI18N
  63
  64                                         // Value is not right type
  65                                         facesMessage = new FacesMessage(FacesMessage.SEVERITY_ERROR, requiredMessage, requiredMessage); //NOI18N
  66                                         break;
  67                                 }
  68
  69                                 // Cast to string
  70                                 Long num = (Long) value;
  71
  72                                 // Is the number below zero?
  73                                 if (num < 0) {
  74                                         // Generate message
  75                                         requiredMessage = MessageFormat.format("Value {0} for field {1} is below zero.", num, field); //NOI18N
  76
  77                                         // Abort processing here
  78                                         facesMessage = new FacesMessage(FacesMessage.SEVERITY_ERROR, requiredMessage, requiredMessage);
  79                                         break;
  80                                 }
  81                         }
  82                 }
  83
  84                 // Is facesMessage set?
  85                 if (facesMessage != null) {
  86                         // Abort here
  87                         throw new ValidatorException(facesMessage);
  88                 }
  89         }
  90 }