src/java/org/mxchange/pizzaapplication/beans/mobileprovider/PizzaMobileProviderWebRequestBean.java

   1 /*
   2  * Copyright (C) 2016 Roland Haeder
   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.beans.mobileprovider;
  18
  19 import java.text.MessageFormat;
  20 import java.util.Collections;
  21 import java.util.List;
  22 import javax.annotation.PostConstruct;
  23 import javax.enterprise.context.SessionScoped;
  24 import javax.enterprise.event.Observes;
  25 import javax.faces.view.facelets.FaceletException;
  26 import javax.inject.Named;
  27 import javax.naming.Context;
  28 import javax.naming.InitialContext;
  29 import javax.naming.NamingException;
  30 import org.mxchange.jphone.events.AdminAddedMobileProviderEvent;
  31 import org.mxchange.jphone.phonenumbers.mobileprovider.MobileProvider;
  32 import org.mxchange.jphone.phonenumbers.mobileprovider.MobileProviderSingletonBeanRemote;
  33 import org.mxchange.pizzaapplication.beans.BasePizzaController;
  34
  35 /**
  36  * A general bean for mobile providers
  37  * <p>
  38  * @author Roland Haeder<roland@mxchange.org>
  39  */
  40 @Named ("mobileProviderController")
  41 @SessionScoped
  42 public class PizzaMobileProviderWebRequestBean extends BasePizzaController implements PizzaMobileProviderWebRequestController {
  43
  44         /**
  45          * Serial number
  46          */
  47         private static final long serialVersionUID = 15_869_423_671_950_276L;
  48
  49         /**
  50          * "Cached" list of mobile providers
  51          */
  52         private List<MobileProvider> mobileProviders;
  53
  54         /**
  55          * Remote EJB for mobile providers (regular)
  56          */
  57         private MobileProviderSingletonBeanRemote mobileRemoteBean;
  58
  59         /**
  60          * Default constructor
  61          */
  62         public PizzaMobileProviderWebRequestBean () {
  63                 // Try it
  64                 try {
  65                         // Get initial context
  66                         Context context = new InitialContext();
  67
  68                         // Try to lookup the beans
  69                         this.mobileRemoteBean = (MobileProviderSingletonBeanRemote) context.lookup("java:global/PizzaService-ejb/mobileprovider!org.mxchange.jphone.phonenumbers.mobileprovider.MobileProviderSingletonBeanRemote"); //NOI18N
  70                 } catch (final NamingException e) {
  71                         // Throw it again
  72                         throw new FaceletException(e);
  73                 }
  74         }
  75
  76         @Override
  77         public void afterAdminAddedMobileProvider (@Observes final AdminAddedMobileProviderEvent event) {
  78                 // Is all valid?
  79                 if (null == event) {
  80                         // Throw NPE
  81                         throw new NullPointerException("event is null"); //NOI18N
  82                 } else if (event.getAddedMobileProvider()== null) {
  83                         // Throw again ...
  84                         throw new NullPointerException("event.addedMobileProvider is null"); //NOI18N
  85                 } else if (event.getAddedMobileProvider().getProviderId()== null) {
  86                         // And again ...
  87                         throw new NullPointerException("event.addedMobileProvider.providerId is null"); //NOI18N
  88                 } else if (event.getAddedMobileProvider().getProviderId() < 1) {
  89                         // Id is invalid
  90                         throw new IllegalArgumentException(MessageFormat.format("event.addedMobileProvider.providerId={0} is not valid.", event.getAddedMobileProvider().getProviderId())); //NOI18N
  91                 }
  92
  93                 // Add it to the list
  94                 this.mobileProviders.add(event.getAddedMobileProvider());
  95         }
  96
  97         @Override
  98         public List<MobileProvider> allMobileProvider () {
  99                 return Collections.unmodifiableList(this.mobileProviders);
 100         }
 101
 102         @Override
 103         public boolean hasMobileProvider () {
 104                 return (!this.mobileProviders.isEmpty());
 105         }
 106
 107         /**
 108          * Initializer method
 109          */
 110         @PostConstruct
 111         public void init () {
 112                 // Init list of mobile providers
 113                 this.mobileProviders = this.mobileRemoteBean.allMobileProvider();
 114         }
 115
 116 }