/*
 * Copyright (c) 2015 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.must;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.opendaylight.yangtools.yang.model.api.RevisionAwareXPath;
import org.opendaylight.yangtools.yang.model.api.stmt.DescriptionStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.ErrorAppTagStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.ErrorMessageStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.MustStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.ReferenceStatement;
import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;

final class MustStatementImpl extends AbstractDeclaredStatement<RevisionAwareXPath> implements MustStatement {
    MustStatementImpl(final StmtContext<RevisionAwareXPath, MustStatement, ?> context) {
        super(context);
    }

    @Nonnull
    @Override
    public RevisionAwareXPath getCondition() {
        return argument();
    }

    @Nullable
    @Override
    public ErrorAppTagStatement getErrorAppTagStatement() {
        return firstDeclared(ErrorAppTagStatement.class);
    }

    @Nullable
    @Override
    public ErrorMessageStatement getErrorMessageStatement() {
        return firstDeclared(ErrorMessageStatement.class);
    }

    @Nullable
    @Override
    public DescriptionStatement getDescription() {
        return firstDeclared(DescriptionStatement.class);
    }

    @Nullable
    @Override
    public ReferenceStatement getReference() {
        return firstDeclared(ReferenceStatement.class);
    }
}