src/java/org/mxchange/pizzaapplication/converter/businesscontact/PizzaBusinessContactConverter.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.businesscontact;
  18
  19 import java.text.MessageFormat;
  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.naming.Context;
  26 import javax.naming.InitialContext;
  27 import javax.naming.NamingException;
  28 import org.mxchange.jcontacts.contact.Contact;
  29 import org.mxchange.jcontactsbusiness.BusinessBasicData;
  30 import org.mxchange.jcontactsbusiness.BusinessDataSessionBeanRemote;
  31 import org.mxchange.jcontactsbusiness.exceptions.BusinessDataNotFoundException;
  32
  33 /**
  34  * Converter for contact id <-> valid business contact instance
  35  * <p>
  36  * @author Roland Häder<roland@mxchange.org>
  37  */
  38 @FacesConverter (value = "BusinessContactConverter")
  39 public class PizzaBusinessContactConverter implements Converter {
  40
  41         /**
  42          * Business contact EJB
  43          */
  44         private static BusinessDataSessionBeanRemote BUSINESS_CONTACT_BEAN;
  45
  46         /**
  47          * Default constructor
  48          */
  49         public PizzaBusinessContactConverter () {
  50         }
  51
  52         @Override
  53         public Object getAsObject (final FacesContext context, final UIComponent component, final String submittedValue) {
  54                 // Is the value null or empty?
  55                 if ((null == submittedValue) || (submittedValue.trim().isEmpty())) {
  56                         // Warning message
  57                         // @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
  58
  59                         // Return null
  60                         return null;
  61                 }
  62
  63                 // Is the bean there?
  64                 // @TODO Requires this synchronization or is it (sync) confusing the container?
  65                 if (null == PizzaBusinessContactConverter.BUSINESS_CONTACT_BEAN) {
  66                         // Try to get it
  67                         try {
  68                                 // Get initial context
  69                                 Context initialContext = new InitialContext();
  70
  71                                 // ... and user controller
  72                                 PizzaBusinessContactConverter.BUSINESS_CONTACT_BEAN = (BusinessDataSessionBeanRemote) initialContext.lookup("java:global/pizzaapplication-ejb/businessData!org.mxchange.jcontactsbusiness.BusinessDataSessionBeanRemote"); //NOI18N
  73                         } catch (final NamingException ex) {
  74                                 // Continue to throw it
  75                                 throw new ConverterException(MessageFormat.format("initialContext.lookup() failed: {0}", ex.getMessage()), ex); //NOI18N
  76                         }
  77                 }
  78
  79                 // Init instance
  80                 BusinessBasicData businessContact = null;
  81
  82                 try {
  83                         // Try to parse the value as long
  84                         Long contactId = Long.valueOf(submittedValue);
  85
  86                         // Try to get user instance from it
  87                         businessContact = PizzaBusinessContactConverter.BUSINESS_CONTACT_BEAN.findBusinessDataById(contactId);
  88                 } catch (final NumberFormatException ex) {
  89                         // Throw again
  90                         throw new ConverterException(ex);
  91                 } catch (final BusinessDataNotFoundException ex) {
  92                         // Debug message
  93                         // @TODO Not working with JNDI (no remote interface) this.loggerBeanLocal.logDebug(MessageFormat.format("{0}.getAsObject(): Exception: {1} - Returning null ...", this.getClass().getSimpleName(), ex)); //NOI18N
  94                 }
  95
  96                 // Return it
  97                 return businessContact;
  98         }
  99
 100         @Override
 101         public String getAsString (final FacesContext context, final UIComponent component, final Object value) {
 102                 // Is the object null?
 103                 if ((null == value) || (String.valueOf(value).isEmpty())) {
 104                         // Is null
 105                         return ""; //NOI18N
 106                 } else if (!(value instanceof Contact)) {
 107                         // Not same interface
 108                         throw new IllegalArgumentException(MessageFormat.format("value[]={0} does not implement Contact.", value.getClass().getSimpleName())); //NOI18N
 109                 }
 110
 111                 // Return id number
 112                 return String.valueOf(((BusinessBasicData) value).getBusinessDataId());
 113         }
 114
 115 }