package org.apache.myfaces.tobago.example.addressbook.web;
/*
* 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.
*/
import org.apache.myfaces.tobago.example.addressbook.EmailAddress;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
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 {
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));
}
}
}