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

/**
 * Regex validator.
 */
public class RegexStringValidator implements Validator<String> {

    /** Regex. */
    private final String regex;
    /** Failure reason. */
    private final String failedReason;

    /**
     * Instantiates a new regex validator.
     *
     * @param regex Regex to validate text against
     * @param failedReason Reason for validation failure
     */
    public RegexStringValidator(final String regex, final String failedReason) {
        this.regex = regex;
        this.failedReason = failedReason;
    }

    @Override
    public ValidationResponse validate(final String object) {
        if (object != null && object.matches(regex)) {
            return new ValidationResponse();
        } else {
            return new ValidationResponse(failedReason);
        }
    }

}