src/java/org/mxchange/pizzaapplication/converter/mobileprovider/PizzaMobileProviderConverter.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.pizzaapplication.converter.mobileprovider;
  18
  19 import java.util.List;
  20 import java.util.Objects;
  21 import javax.faces.application.FacesMessage;
  22 import javax.faces.component.UIComponent;
  23 import javax.faces.context.FacesContext;
  24 import javax.faces.convert.Converter;
  25 import javax.faces.convert.ConverterException;
  26 import javax.faces.convert.FacesConverter;
  27 import javax.naming.Context;
  28 import javax.naming.InitialContext;
  29 import javax.naming.NamingException;
  30 import org.mxchange.jphone.model.phonenumbers.mobileprovider.MobileProvider;
  31 import org.mxchange.jphone.model.phonenumbers.mobileprovider.MobileProviderSingletonBeanRemote;
  32
  33 /**
  34  * Converter for SMS provider instance
  35  * <p>
  36  * @author Roland Häder<roland@mxchange.org>
  37  */
  38 @FacesConverter ( "MobileProviderConverter")
  39 public class PizzaMobileProviderConverter implements Converter<MobileProvider> {
  40
  41         /**
  42          * Mobile provider bean
  43          */
  44         private static MobileProviderSingletonBeanRemote MOBILE_PROVIDER_BEAN;
  45
  46         @Override
  47         public MobileProvider getAsObject (final FacesContext context, final UIComponent component, final String submittedValue) {
  48                 // Is the instance there?
  49                 if (MOBILE_PROVIDER_BEAN == null) {
  50                         try {
  51                                 // Not yet, attempt lookup
  52                                 final Context initial = new InitialContext();
  53
  54                                 // Lookup EJB
  55                                 MOBILE_PROVIDER_BEAN = (MobileProviderSingletonBeanRemote) initial.lookup("java:global/jfinancials-ejb/mobileProvider!org.mxchange.jphone.model.phonenumbers.mobileprovider.MobileProviderSingletonBeanRemote");
  56                         } catch (final NamingException ex) {
  57                                 // Throw it again
  58                                 throw new ConverterException(new FacesMessage(FacesMessage.SEVERITY_ERROR, "Cannot lookup EJB", ex.getMessage()), ex);
  59                         }
  60                 }
  61
  62                 // Is the value null or empty?
  63                 if ((null == submittedValue) || (submittedValue.trim().isEmpty())) {
  64                         // Warning message
  65                         // @TODO Not working with JNDI (no remote interface) this.loggerBeanLocal.logWarning(MessageFormat.format("{0}.getAsObject(): submittedValue is null or empty - EXIT!", this.getClass().getSimpleName())); //NOI18N
  66
  67                         // Return null
  68                         return null;
  69                 }
  70
  71                 // Get full list
  72                 final List<MobileProvider> providerList = MOBILE_PROVIDER_BEAN.allMobileProviders();
  73
  74                 // Init value
  75                 MobileProvider provider = null;
  76
  77                 // Try this better
  78                 try {
  79                         // Convert it to long
  80                         final Long providerId = Long.parseLong(submittedValue);
  81
  82                         // Category id should not be below 1
  83                         assert (providerId > 0) : "providerId is smaller than one: " + providerId; //NOI18N
  84
  85                         // Try to find it
  86                         for (final MobileProvider prov : providerList) {
  87                                 // Is the id the same? (null-safe)
  88                                 if (Objects.equals(prov.getProviderId(), providerId)) {
  89                                         // Found it
  90                                         provider = prov;
  91                                         break;
  92                                 }
  93                         }
  94                 } catch (final NumberFormatException ex) {
  95                         // Log exception (maybe to much?)
  96                         // @TODO Not working with JNDI (no remote interface) this.loggerBeanLocal.logException(ex);
  97                 }
  98
  99                 // Return it
 100                 return provider;
 101         }
 102
 103         @Override
 104         public String getAsString (final FacesContext context, final UIComponent component, final MobileProvider value) {
 105                 // Is the object null?
 106                 if ((null == value) || (String.valueOf(value).isEmpty())) {
 107                         // Is null
 108                         return ""; //NOI18N
 109                 }
 110
 111                 // Return id number
 112                 return String.valueOf(value.getProviderId());
 113         }
 114
 115 }