src/java/org/mxchange/jjobs/converter/landline/JobsLandLineNumberConverter.java

   1 /*
   2  * Copyright (C) 2016, 2017 Roland Häder
   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.jjobs.converter.landline;
  18
  19 import javax.faces.application.FacesMessage;
  20 import javax.faces.component.UIComponent;
  21 import javax.faces.context.FacesContext;
  22 import javax.faces.convert.Converter;
  23 import javax.faces.convert.ConverterException;
  24 import javax.faces.convert.FacesConverter;
  25 import javax.faces.validator.ValidatorException;
  26 import javax.naming.Context;
  27 import javax.naming.InitialContext;
  28 import javax.naming.NamingException;
  29 import org.mxchange.jjobs.beans.phone.JobsPhoneWebRequestBean;
  30 import org.mxchange.jjobs.beans.phone.JobsPhoneWebRequestController;
  31 import org.mxchange.jphone.exceptions.phone.PhoneEntityNotFoundException;
  32 import org.mxchange.jphone.model.phonenumbers.landline.DialableLandLineNumber;
  33
  34 /**
  35  * Converter for land-line id <-> valid land-line number instance
  36  * <p>
  37  * @author Roland Häder<roland@mxchange.org>
  38  */
  39 @FacesConverter ("LandLineNumberConverter")
  40 public class JobsLandLineNumberConverter implements Converter<DialableLandLineNumber> {
  41
  42         /**
  43          * Phone EJB
  44          */
  45         private static JobsPhoneWebRequestController PHONE_CONTROLLER;
  46
  47         @Override
  48         public DialableLandLineNumber getAsObject (final FacesContext context, final UIComponent component, final String submittedValue) {
  49                 // Is the instance there?
  50                 if (PHONE_CONTROLLER == null) {
  51                         try {
  52                                 // Not yet, attempt lookup
  53                                 final Context initial = new InitialContext();
  54
  55                                 // Lookup EJB
  56                                 PHONE_CONTROLLER = (JobsPhoneWebRequestController) initial.lookup(String.format("java:module/%s", JobsPhoneWebRequestBean.class.getSimpleName())); //NOI18N
  57                         } catch (final NamingException ex) {
  58                                 // Throw it again
  59                                 throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_ERROR, "Cannot lookup backing bean", ex.getMessage()), ex); //NOI18N
  60                         }
  61                 }
  62
  63                 // Is the value null or empty?
  64                 if ((null == submittedValue) || (submittedValue.trim().isEmpty())) {
  65                         // Warning message
  66                         // @TODO Not possible here: this.loggerBeanLocal.logWarning(MessageFormat.format("{0}.getAsObject(): submittedValue is null or empty - EXIT!", this.getClass().getSimpleName())); //NOI18N
  67
  68                         // Return null
  69                         return null;
  70                 }
  71
  72                 // Init instance
  73                 DialableLandLineNumber landLineNumber = null;
  74
  75                 try {
  76                         // Try to parse the value as long
  77                         final Long landLineNumberId = Long.valueOf(submittedValue);
  78
  79                         // Try to get mobile instance from it
  80                         landLineNumber = PHONE_CONTROLLER.findLandLineNumberById(landLineNumberId);
  81                 } catch (final NumberFormatException ex) {
  82                         // Throw again
  83                         throw new ConverterException(ex);
  84                 } catch (final PhoneEntityNotFoundException ex) {
  85                         // Debug message
  86                         // @TODO Not possible here: this.loggerBeanLocal.logDebug(MessageFormat.format("{0}.getAsObject(): Exception: {1} - Returning null ...", this.getClass().getSimpleName(), ex)); //NOI18N
  87                 }
  88
  89                 // Return it
  90                 return landLineNumber;
  91         }
  92
  93         @Override
  94         public String getAsString (final FacesContext context, final UIComponent component, final DialableLandLineNumber value) {
  95                 // Is the object null?
  96                 if ((null == value) || (String.valueOf(value).isEmpty())) {
  97                         // Is null
  98                         return ""; //NOI18N
  99                 }
 100
 101                 // Return id number
 102                 return String.valueOf(value.getPhoneId());
 103         }
 104
 105 }