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DuplicateEmailValidator.java
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DuplicateEmailValidator.java
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/*
* Copyright 2010, Red Hat, Inc. and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.zanata.action.validator;
import java.io.Serializable;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import org.zanata.dao.PersonDAO;
import org.zanata.util.ServiceLocator;
public class DuplicateEmailValidator implements
ConstraintValidator<NotDuplicateEmail, String>, Serializable {
private static final long serialVersionUID = 1L;
@Override
public boolean isValid(String string, ConstraintValidatorContext context) {
if (string == null)
return true;
if (string.length() == 0)
return true;
PersonDAO personDAO =
ServiceLocator.instance().getInstance(PersonDAO.class);
return personDAO.findByEmail(string) == null;
}
@Override
public void initialize(NotDuplicateEmail parameters) {
}
}