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

   1 /*
   2  * Copyright (C) 2016 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.beans.mobileprovider;
  18
  19 import java.text.MessageFormat;
  20 import java.util.List;
  21 import javax.annotation.PostConstruct;
  22 import javax.enterprise.context.SessionScoped;
  23 import javax.enterprise.event.Observes;
  24 import javax.faces.view.facelets.FaceletException;
  25 import javax.inject.Named;
  26 import javax.naming.Context;
  27 import javax.naming.InitialContext;
  28 import javax.naming.NamingException;
  29 import org.mxchange.jphone.events.mobileprovider.added.AdminAddedMobileProviderEvent;
  30 import org.mxchange.jphone.phonenumbers.mobileprovider.MobileProvider;
  31 import org.mxchange.jphone.phonenumbers.mobileprovider.MobileProviderSingletonBeanRemote;
  32 import org.mxchange.pizzaapplication.beans.BasePizzaController;
  33
  34 /**
  35  * A general bean for mobile providers
  36  * <p>
  37  * @author Roland Häder<roland@mxchange.org>
  38  */
  39 @Named ("mobileProviderController")
  40 @SessionScoped
  41 public class PizzaMobileProviderWebRequestBean extends BasePizzaController implements PizzaMobileProviderWebRequestController {
  42
  43         /**
  44          * Serial number
  45          */
  46         private static final long serialVersionUID = 15_869_423_671_950_276L;
  47
  48         /**
  49          * "Cached" list of mobile providers
  50          */
  51         private List<MobileProvider> mobileProviders;
  52
  53         /**
  54          * Remote EJB for mobile providers (regular)
  55          */
  56         private MobileProviderSingletonBeanRemote mobileRemoteBean;
  57
  58         /**
  59          * Default constructor
  60          */
  61         public PizzaMobileProviderWebRequestBean () {
  62         }
  63
  64         /**
  65          * Observes events being fired after the administrator has added a new
  66          * mobile provider
  67          * <p>
  68          * @param event Event being fired
  69          */
  70         public void afterAdminAddedMobileProviderEvent (@Observes final AdminAddedMobileProviderEvent event) {
  71                 // Is all valid?
  72                 if (null == event) {
  73                         // Throw NPE
  74                         throw new NullPointerException("event is null"); //NOI18N
  75                 } else if (event.getAddedMobileProvider() == null) {
  76                         // Throw again ...
  77                         throw new NullPointerException("event.addedMobileProvider is null"); //NOI18N
  78                 } else if (event.getAddedMobileProvider().getProviderId() == null) {
  79                         // And again ...
  80                         throw new NullPointerException("event.addedMobileProvider.providerId is null"); //NOI18N
  81                 } else if (event.getAddedMobileProvider().getProviderId() < 1) {
  82                         // Id is invalid
  83                         throw new IllegalArgumentException(MessageFormat.format("event.addedMobileProvider.providerId={0} is not valid.", event.getAddedMobileProvider().getProviderId())); //NOI18N
  84                 }
  85
  86                 // Add it to the list
  87                 this.mobileProviders.add(event.getAddedMobileProvider());
  88         }
  89
  90         @Override
  91         @SuppressWarnings ("ReturnOfCollectionOrArrayField")
  92         public List<MobileProvider> allMobileProviders () {
  93                 return this.mobileProviders;
  94         }
  95
  96         /**
  97          * Post-construction method
  98          */
  99         @PostConstruct
 100         public void init () {
 101                 // Try it
 102                 try {
 103                         // Get initial context
 104                         Context context = new InitialContext();
 105
 106                         // Try to lookup the beans
 107                         this.mobileRemoteBean = (MobileProviderSingletonBeanRemote) context.lookup("java:global/pizzaservice-ejb/mobileprovider!org.mxchange.jphone.phonenumbers.mobileprovider.MobileProviderSingletonBeanRemote"); //NOI18N
 108                 } catch (final NamingException e) {
 109                         // Throw it again
 110                         throw new FaceletException(e);
 111                 }
 112
 113                 // Init list of mobile providers
 114                 this.mobileProviders = this.mobileRemoteBean.allMobileProvider();
 115         }
 116
 117 }