git.mxchange.org Git - jfinancials-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.jfinancials.validator.emailaddress.branchoffice;
  18
  19 import java.text.MessageFormat;
  20 import java.util.regex.Pattern;
  21 import javax.enterprise.inject.spi.CDI;
  22 import javax.faces.application.FacesMessage;
  23 import javax.faces.component.UIComponent;
  24 import javax.faces.context.FacesContext;
  25 import javax.faces.validator.FacesValidator;
  26 import javax.faces.validator.ValidatorException;
  27 import org.mxchange.jcoreee.validator.string.BaseStringValidator;
  28 import org.mxchange.jfinancials.beans.business.branchoffice.FinancialsBranchOfficeWebRequestBean;
  29 import org.mxchange.jfinancials.beans.business.branchoffice.FinancialsBranchOfficeWebRequestController;
  30
  31 /**
  32  * A validator for branch office email address validation
  33  * <p>
  34  * @author Roland Häder<roland@mxchange.org>
  35  */
  36 @FacesValidator (value = "BranchOfficeEmailAddressValidator")
  37 public class FinancialsBranchOfficeEmailAddressValidator extends BaseStringValidator {
  38
  39         /**
  40          * Branch office backing bean
  41          */
  42         private static FinancialsBranchOfficeWebRequestController BRANCH_OFFICE_CONTROLLER;
  43
  44         /**
  45          * Email pattern
  46          */
  47         private static final String EMAIL_REGEX = "^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$"; //NOI18N
  48
  49         /**
  50          * Pattern matcher
  51          */
  52         private static final Pattern PATTERN_MATCHER = Pattern.compile(FinancialsBranchOfficeEmailAddressValidator.EMAIL_REGEX);
  53
  54         /**
  55          * Serial number
  56          */
  57         private static final long serialVersionUID = 187_536_745_607_195L;
  58
  59         @Override
  60         public void validate (final FacesContext context, final UIComponent component, final Object value) throws ValidatorException {
  61                 // The required field
  62                 final String[] requiredFields = {"emailAddress", "emailAddressRepeat", "resendEmailAddress"}; //NOI18N
  63
  64                 // Default is to reject empty email address fields
  65                 Boolean allowEmptyValue = Boolean.FALSE;
  66
  67                 // Is attribute "allowEmptyValue" set?
  68                 if (component.getAttributes().containsKey("allowEmptyValue")) { //NOI18N
  69                         // Get attribute
  70                         final Object attribute = component.getAttributes().get("allowEmptyValue"); //NOI18N
  71
  72                         // Make sure, it is Boolean as no String is accepted anymore
  73                         if (!(attribute instanceof String)) {
  74                                 // Not valid attribute, please use "true" or "false" (default)
  75                                 throw new IllegalArgumentException("allowEmptyValue must be of type String. Please use \"true\" or \"false\" for f:attribute value."); //NOI18N
  76                         }
  77
  78                         // Securely cast it
  79                         allowEmptyValue = Boolean.parseBoolean((String) attribute);
  80                 }
  81
  82                 // Pre-validation (example: not null, not a string, empty string ...)
  83                 super.preValidate(context, component, value, requiredFields, allowEmptyValue);
  84
  85                 // Is the email address empty and allowed?
  86                 if (null == value && allowEmptyValue) {
  87                         // Then accept this here
  88                         return;
  89                 } else if (null == value) {
  90                         // Abort here
  91                         throw new ValidatorException(new FacesMessage("No empty email address allowed.")); //NOI18N
  92                 }
  93
  94                 // Get string from object ... ;-)
  95                 // @TODO Add IDN support (GNU lib?) Search for emailAddressRepeat
  96                 final String emailAddress = String.valueOf(value).trim();
  97
  98                 // Checks if the email address matches a regex ("low-level" check)
  99                 // @TODO Should also be done by <f:validatorRegex />)
 100                 final boolean matches = PATTERN_MATCHER.matcher(emailAddress).matches(); //NOI18N
 101
 102                 // Is the email address valid?
 103                 if (!matches) {
 104                         // Generate message
 105                         String message = MessageFormat.format("Email address {0} does not match regular expression.", emailAddress); //NOI18N
 106
 107                         // Not matching
 108                         throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_WARN, message, message));
 109                 }
 110
 111                 // Get client id (aka form id)
 112                 final String clientId = component.getClientId();
 113
 114                 // Is the instance there?
 115                 if (null == BRANCH_OFFICE_CONTROLLER) {
 116                         // Get bean from CDI directly
 117                         BRANCH_OFFICE_CONTROLLER = CDI.current().select(FinancialsBranchOfficeWebRequestBean.class).get();
 118                 }
 119
 120                 // Is it registered?
 121                 final Boolean isRegistered = BRANCH_OFFICE_CONTROLLER.isEmailAddressRegistered(emailAddress);
 122
 123                 // Is the email address already registered?
 124                 if ((!clientId.endsWith("resendEmailAddress")) && (isRegistered)) { //NOI18N
 125                         // Generate message
 126                         final String message = MessageFormat.format("Email address {0} is already registered.", emailAddress); //NOI18N
 127
 128                         // No, then abort here
 129                         throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_INFO, message, message));
 130                 } else if ((clientId.endsWith("resendEmailAddress")) && (!isRegistered)) { //NOI18N
 131                         // Generate message
 132                         final String message = MessageFormat.format("Email address {0} is not registered.", emailAddress); //NOI18N
 133
 134                         // No, then abort here
 135                         throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_INFO, message, message));
 136                 }
 137         }
 138
 139 }