git.mxchange.org Git - addressbook-war.git/blob

   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.addressbook.converter.business.company_employee;
  18
  19 import javax.faces.application.FacesMessage;
  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.faces.validator.ValidatorException;
  26 import javax.naming.Context;
  27 import javax.naming.InitialContext;
  28 import javax.naming.NamingException;
  29 import org.mxchange.jcontactsbusiness.exceptions.employee.CompanyEmployeeNotFoundException;
  30 import org.mxchange.jcontactsbusiness.model.employee.CompanyEmployeeSessionBeanRemote;
  31 import org.mxchange.jcontactsbusiness.model.employee.Employee;
  32
  33 /**
  34  * Converter for converting company employee to and from id number
  35  * <p>
  36  * @author Roland Häder<roland@mxchange.org>
  37  */
  38 @FacesConverter ("CompanyEmployeeConverter")
  39 public class AddressbookCompanyEmployeeConverter implements Converter<Employee> {
  40
  41         /**
  42          * CompanyEmployee EJB
  43          */
  44         private static CompanyEmployeeSessionBeanRemote COMPANY_EMPLOYEE_BEAN;
  45
  46         /**
  47          * Default constructor
  48          */
  49         public AddressbookCompanyEmployeeConverter () {
  50         }
  51
  52         @Override
  53         public Employee getAsObject (final FacesContext context, final UIComponent component, final String submittedValue) {
  54                 // Is the instance there?
  55                 if (COMPANY_EMPLOYEE_BEAN == null) {
  56                         try {
  57                                 // Not yet, attempt lookup
  58                                 Context initial = new InitialContext();
  59
  60                                 // Lookup EJB
  61                                 COMPANY_EMPLOYEE_BEAN = (CompanyEmployeeSessionBeanRemote) initial.lookup("java:global/addressbook-ejb/companyEmployee!org.mxchange.jcontactsbusiness.employee.CompanyEmployeeSessionBeanRemote");
  62                         } catch (final NamingException ex) {
  63                                 // Throw it again
  64                                 throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_ERROR, "Cannot lookup EJB", ex.getMessage()), ex);
  65                         }
  66                 }
  67
  68                 // Is the value null or empty?
  69                 if ((null == submittedValue) || (submittedValue.trim().isEmpty())) {
  70                         // Warning message
  71                         // @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
  72
  73                         // Return null
  74                         return null;
  75                 }
  76
  77                 // Init instance
  78                 Employee companyEmployee = null;
  79
  80                 try {
  81                         // Try to parse the value as long
  82                         Long employeeId = Long.valueOf(submittedValue);
  83
  84                         // Try to get user instance from it
  85                         companyEmployee = COMPANY_EMPLOYEE_BEAN.findCompanyEmployeeById(employeeId);
  86                 } catch (final NumberFormatException ex) {
  87                         // Throw again
  88                         throw new ConverterException(ex);
  89                 } catch (final CompanyEmployeeNotFoundException ex) {
  90                         // Debug message
  91                         // @TODO Not working with JNDI (no remote interface) this.loggerBeanLocal.logDebug(MessageFormat.format("{0}.getAsObject(): Exception: {1} - Returning null ...", this.getClass().getSimpleName(), ex)); //NOI18N
  92                 }
  93
  94                 // Return it
  95                 return companyEmployee;
  96         }
  97
  98         @Override
  99         public String getAsString (final FacesContext context, final UIComponent component, final Employee value) {
 100                 // Is the object null?
 101                 if ((null == value) || (String.valueOf(value).isEmpty())) {
 102                         // Is null
 103                         return ""; //NOI18N
 104                 }
 105
 106                 // Return id number
 107                 return String.valueOf(value.getEmployeeId());
 108         }
 109
 110 }