DMDirc-Util/src/main/java/com/dmdirc/util/validators/URIValidator.java

/*
 * Copyright (c) 2006-2017 DMDirc Developers
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
 * OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package com.dmdirc.util.validators;

import java.net.URI;
import java.net.URISyntaxException;

/**
 * Validates a string to see if it compiles to a URI.
 */
public class URIValidator implements Validator<String> {

    @Override
    public ValidationResponse validate(final String object) {
        try {
            new URI(object);
        } catch (URISyntaxException ex) {
            if ("Expected authority".equals(ex.getReason())) {
                return new ValidationResponse("Address requires a hostname.");
            } else {
                return new ValidationResponse(ex.getReason());
            }
        }
        return new ValidationResponse();
    }
}