/*
 * Copyright (c) 2016 Cisco Systems, Inc. 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.choice;

import com.google.common.annotations.Beta;
import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.case_.CaseStatementRFC7950Support;
import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;

/**
 * Class providing necessary support for processing YANG 1.1 Choice statement.
 */
@Beta
public final class ChoiceStatementRFC7950Support extends AbstractChoiceStatementSupport {
    private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
            .CHOICE)
            .addAny(YangStmtMapping.ANYDATA)
            .addAny(YangStmtMapping.ANYXML)
            .addAny(YangStmtMapping.CASE)
            .addOptional(YangStmtMapping.CONFIG)
            .addAny(YangStmtMapping.CONTAINER)
            .addOptional(YangStmtMapping.DEFAULT)
            .addOptional(YangStmtMapping.DESCRIPTION)
            .addAny(YangStmtMapping.IF_FEATURE)
            .addAny(YangStmtMapping.LEAF)
            .addAny(YangStmtMapping.LEAF_LIST)
            .addAny(YangStmtMapping.LIST)
            .addOptional(YangStmtMapping.MANDATORY)
            .addOptional(YangStmtMapping.REFERENCE)
            .addOptional(YangStmtMapping.STATUS)
            .addOptional(YangStmtMapping.WHEN)
            .build();

    private static final ChoiceStatementRFC7950Support INSTANCE = new ChoiceStatementRFC7950Support();

    private ChoiceStatementRFC7950Support() {
        // Hidden
    }

    public static ChoiceStatementRFC7950Support getInstance() {
        return INSTANCE;
    }

    @Override
    StatementSupport<?, ?, ?> implictCase() {
        return CaseStatementRFC7950Support.getInstance();
    }

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