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/*
 * 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.rfc7952.model.api;

import static java.util.Objects.requireNonNull;

import java.util.Optional;
import org.eclipse.jdt.annotation.NonNullByDefault;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.model.api.meta.ArgumentDefinition;
import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;

/**
 * {@link StatementDefinition}s for statements defined by RFC7952.
 *
 * @author Robert Varga
 */
@NonNullByDefault
public enum MetadataStatements implements StatementDefinition {
    ANNOTATION(QName.create(MetadataConstants.RFC7952_MODULE, "annotation"), "name", AnnotationStatement.class,
        AnnotationEffectiveStatement.class);

    private final Class> effectiveRepresentation;
    private final Class> declaredRepresentation;
    private final QName statementName;
    private final ArgumentDefinition argumentDef;

    MetadataStatements(final QName statementName, final String argumentName,
            final Class> declaredRepresentation,
                    final Class> effectiveRepresentation) {
        this.statementName = statementName.intern();
        this.argumentDef = ArgumentDefinition.of(QName.create(statementName, argumentName).intern(), false);
        this.declaredRepresentation = requireNonNull(declaredRepresentation);
        this.effectiveRepresentation = requireNonNull(effectiveRepresentation);
    }

    @Override
    public Optional getArgumentDefinition() {
        return Optional.of(argumentDef);
    }

    @Override
    public QName getStatementName() {
        return statementName;
    }

    @Override
    public Class> getEffectiveRepresentationClass() {
        return effectiveRepresentation;
    }

    @Override
    public Class> getDeclaredRepresentationClass() {
        return declaredRepresentation;
    }
}