HostnameValidator.java

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
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 * for the specific language governing rights and limitations under the
 * License.
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 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
 * Portions created by the Initial Developer are Copyright (C) 2012
 * the Initial Developer. All Rights Reserved.
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 * See @authors listed below
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package org.dcm4chee.wizard.validator;

import org.apache.wicket.validation.IValidatable;
import org.apache.wicket.validation.ValidationError;
import org.apache.wicket.validation.validator.StringValidator;

/**
 * @author Robert David <robert.david@agfa.com>
 */
public class HostnameValidator extends StringValidator {

    private static final long serialVersionUID = 1L;

    private String ValidIpAddressRegex = "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9‌​]{2}|2[0-4][0-9]|25[0-5])$";
    private String ValidHostnameRegex = "^(([a-zA-Z]|[a-zA-Z][a-zA-Z0-9\\-]*[a-zA-Z0-9])\\.)*([A-Za-z]|[A-Za-z][A-Za-z0-9\\-]*[A-Za-z0-9])$";

    @Override
    public void validate(IValidatable<String> hostname) {
        if (hostname.getValue().matches(ValidHostnameRegex) || hostname.getValue().matches(ValidIpAddressRegex))
            return;
        hostname.error(new ValidationError().addKey("HostnameValidator.invalid"));
    }
}