/*
 * Copyright (c) 2017 Pantheon Technologies, s.r.o. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.yangtools.yang.parser.rfc7950.stmt.pattern;

import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;

public final class PatternStatementRFC6020Support extends AbstractPatternStatementSupport {
    private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
        .PATTERN)
        .addOptional(YangStmtMapping.DESCRIPTION)
        .addOptional(YangStmtMapping.ERROR_APP_TAG)
        .addOptional(YangStmtMapping.ERROR_MESSAGE)
        .addOptional(YangStmtMapping.REFERENCE)
        .build();
    private static final PatternStatementRFC6020Support INSTANCE = new PatternStatementRFC6020Support();

    private PatternStatementRFC6020Support() {
        // Hidden
    }

    public static PatternStatementRFC6020Support getInstance() {
        return INSTANCE;
    }

    @Override
    protected SubstatementValidator getSubstatementValidator() {
        return SUBSTATEMENT_VALIDATOR;
    }
}