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  * Copyright (c) 2013, Francis Galiegue <>
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the Lesser GNU General Public License as
  * published by the Free Software Foundation, either version 3 of the
  * License, or (at your option) any later version.
  * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * Lesser GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <>.
package com.github.fge.jsonschema.format.helpers;
Validator for the host-name format attribute.

Important note: the basis for host name format validation is RFC 1034. The RFC does not require that a host name have more than one domain name component. As such, foo is a valid hostname.

Guava's is used for validation.

public final class SharedHostNameAttribute
    extends AbstractFormatAttribute
    public SharedHostNameAttribute(final String fmt)
    public void validate(final ProcessingReport report,
        final MessageBundle bundlefinal FullData data)
        throws ProcessingException
        final String value = data.getInstance().getNode().textValue();
        try {
        } catch (IllegalArgumentException ignored) {
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