src/java/org/mxchange/pizzaapplication/converter/customer/PizzaCustomerConverter.java

   1 /*
   2  * Copyright (C) 2016 - 2022 Free Software Foundation
   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.customer;
  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.jcustomercore.exceptions.CustomerNotFoundException;
  29 import org.mxchange.jcustomercore.model.customer.Customer;
  30 import org.mxchange.pizzaapplication.model.customer.PizzaCustomerSessionBeanRemote;
  31
  32 /**
  33  * Converter for customer id <-> valid customer instance
  34  * <p>
  35  * @author Roland Häder<roland@mxchange.org>
  36  */
  37 @FacesConverter (value = "CustomerConverter")
  38 public class PizzaCustomerConverter implements Converter {
  39
  40         /**
  41          * User EJB
  42          */
  43         private PizzaCustomerSessionBeanRemote customerBean;
  44
  45         /**
  46          * Initialization of this converter
  47          */
  48         public PizzaCustomerConverter () {
  49                 // Try to get it
  50                 try {
  51                         // Get initial context
  52                         final Context context = new InitialContext();
  53
  54                         // ... and user controller
  55                         this.customerBean = (PizzaCustomerSessionBeanRemote) context.lookup("java:global/pizzaservice-ejb/customer!org.mxchange.pizzaservice.model.customer.PizzaCustomerSessionBeanRemote"); //NOI18N
  56                 } catch (final NamingException ex) {
  57                         // Continue to throw it
  58                         throw new RuntimeException(MessageFormat.format("context.lookup() failed: {0}", ex.getMessage()), ex); //NOI18N
  59                 }
  60         }
  61
  62         @Override
  63         public Object getAsObject (final FacesContext context, final UIComponent component, final String submittedValue) {
  64                 // Trace message
  65                 // NOISY-DEBUG: this.loggerBeanLocal.logTrace(MessageFormat.format("getAsObject: context={0},component={1},submittedValue={2} - CALLED!", context, component, submittedValue)); //NOI18N
  66
  67                 // Is the value null or empty?
  68                 if ((null == submittedValue) || (submittedValue.trim().isEmpty())) {
  69                         // Warning message
  70                         // @TODO this.loggerBeanLocal.logWarning(MessageFormat.format("{0}.getAsObject(): submittedValue is null or empty - EXIT!", this.getClass().getSimpleName())); //NOI18N
  71
  72                         // Return null
  73                         return null;
  74                 }
  75
  76                 // Init instance
  77                 final Customer customer;
  78
  79                 try {
  80                         // Try to parse the value as long
  81                         Long customerId = Long.valueOf(submittedValue);
  82
  83                         // Debug message
  84                         // NOISY-DEBUG: this.loggerBeanLocal.logDebug(MessageFormat.format("getAsObject: customerId{0}", customerId)); //NOI18N
  85
  86                         // Try to get user instance from it
  87                         customer = this.customerBean.findCustomerById(customerId);
  88
  89                         // Debug message
  90                         // NOISY-DEBUG: this.loggerBeanLocal.logDebug(MessageFormat.format("getAsObject: customer={0}", customer)); //NOI18N
  91                 } catch (final NumberFormatException | CustomerNotFoundException ex) {
  92                         // Throw again
  93                         throw new ConverterException(ex);
  94                 }
  95                 // Throw again
  96
  97                 // Trace message
  98                 // NOISY-DEBUG: this.loggerBeanLocal.logTrace(MessageFormat.format("getAsObject: contact={0} - EXIT!", contact)); //NOI18N
  99
 100                 // Return it
 101                 return customer;
 102         }
 103
 104         @Override
 105         public String getAsString (final FacesContext context, final UIComponent component, final Object value) {
 106                 // Is the object null?
 107                 if ((null == value) || ((String.valueOf(value)).isEmpty())) {
 108                         // Is null
 109                         return ""; //NOI18N
 110                 } else if (!(value instanceof Customer)) {
 111                         // Not same interface
 112                         throw new IllegalArgumentException(MessageFormat.format("value {0} does not implement Customer.", value)); //NOI18N
 113                 }
 114
 115                 // Return category id
 116                 return String.valueOf(((Customer) value).getCustomerId());
 117         }
 118
 119 }