/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.myfaces.tobago.example.addressbook.web;
import org.apache.myfaces.tobago.example.addressbook.EmailAddress;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.FacesValidator;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
@FacesValidator("EmailAddressValidator")
public class EmailAddressValidator implements Validator {
private static final String EMAIL_ATOM = "[^()<>@,;:\\\\.\\[\\]\\\"]";
private static final String LOCAL_PART_SPEC = EMAIL_ATOM + "+(\\." + EMAIL_ATOM + "+)*";
private static final String DOMAIN_SPEC = EMAIL_ATOM + "+(\\." + EMAIL_ATOM + "+)+";
private static final Pattern LOCAL_PART_PATTERN = Pattern.compile(LOCAL_PART_SPEC);
private static final Pattern DOMAIN_PATTERN = Pattern.compile(DOMAIN_SPEC);
public void validate(FacesContext facesContext, UIComponent uiComponent, Object value)
throws ValidatorException {
if (value == null) {
return;
}
final EmailAddress emailAddress = (EmailAddress) value;
Matcher matcher = LOCAL_PART_PATTERN.matcher(emailAddress.getLocalPart());
if (!matcher.matches()) {
throw new ValidatorException(MessageUtils.createErrorMessage(
"validatorEmailLocalPart", facesContext));
}
matcher = DOMAIN_PATTERN.matcher(emailAddress.getDomain());
if (!matcher.matches()) {
throw new ValidatorException(MessageUtils.createErrorMessage(
"validatorEmailDomain", facesContext));
}
}
}