src/java/org/mxchange/jfinancials/converter/country/FinancialsCountryConverter.java

   1 /*
   2  * Copyright (C) 2016 - 2020 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.jfinancials.converter.country;
  18
  19 import javax.enterprise.inject.spi.CDI;
  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 org.mxchange.jcountry.exceptions.CountryNotFoundException;
  26 import org.mxchange.jcountry.model.data.Country;
  27 import org.mxchange.jfinancials.beans.country.list.FinancialsCountryListWebViewBean;
  28 import org.mxchange.jfinancials.beans.country.list.FinancialsCountryListWebViewController;
  29
  30 /**
  31  * Converter for country instance
  32  * <p>
  33  * @author Roland Häder<roland@mxchange.org>
  34  */
  35 @FacesConverter ("CountryConverter")
  36 public class FinancialsCountryConverter implements Converter<Country> {
  37
  38         /**
  39          * Country backing bean
  40          */
  41         private static FinancialsCountryListWebViewController COUNTRY_LIST_CONTROLLER;
  42
  43         @Override
  44         public Country getAsObject (final FacesContext context, final UIComponent component, final String submittedValue) {
  45                 // Is the value null or empty?
  46                 if ((null == submittedValue) || (submittedValue.trim().isEmpty())) {
  47                         // Return null
  48                         return null;
  49                 }
  50
  51                 // Init value
  52                 Country country = null;
  53
  54                 // Is the instance there?
  55                 if (null == COUNTRY_LIST_CONTROLLER) {
  56                         // Get bean from CDI directly
  57                         COUNTRY_LIST_CONTROLLER = CDI.current().select(FinancialsCountryListWebViewBean.class).get();
  58                 }
  59
  60                 // Try this better
  61                 try {
  62                         // Convert it to long
  63                         final Long countryId = Long.parseLong(submittedValue);
  64
  65                         // Try to find it
  66                         country = COUNTRY_LIST_CONTROLLER.findCountryById(countryId);
  67                 } catch (final NumberFormatException ex) {
  68                         // Throw again
  69                         throw new ConverterException(ex);
  70                 } catch (final CountryNotFoundException ex) {
  71                         // Not handled
  72                 }
  73
  74                 // Return it
  75                 return country;
  76         }
  77
  78         @Override
  79         public String getAsString (final FacesContext context, final UIComponent component, final Country value) {
  80                 // Is the object null?
  81                 if ((null == value) || (String.valueOf(value).isEmpty())) {
  82                         // Is null
  83                         return ""; //NOI18N
  84                 }
  85
  86                 // Return id number
  87                 return String.valueOf(value.getCountryId());
  88         }
  89
  90 }