/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.kernel.database;

import java.util.Objects;
import java.util.UUID;
import org.neo4j.util.Id;

public class DatabaseId {
    public static final DatabaseId SYSTEM_DATABASE_ID = new DatabaseId(new UUID(0, 1));

    private final Id id;

    DatabaseId(UUID uuid) {
        Objects.requireNonNull(uuid, "Database UUID should be not null.");
        id = new Id(uuid);
    }

    public UUID uuid() {
        return id.uuid();
    }

    Id id() {
        return id;
    }

    public boolean isSystemDatabase() {
        return SYSTEM_DATABASE_ID.equals(this);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        DatabaseId that = (DatabaseId) o;
        return Objects.equals(id, that.id);
    }

    @Override
    public int hashCode() {
        return id.hashCode();
    }

    @Override
    public String toString() {
        return "DatabaseId{" + id + '}';
    }
}
