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// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#ifndef ISC_ADAPTOR_SUBNET_H
#define ISC_ADAPTOR_SUBNET_H 1
#include <yang/adaptor.h>
#include <dhcpsrv/subnet_id.h>
#include <set>
namespace isc {
namespace yang {
/// @brief Set of SubnetIDs.
typedef std::set<isc::dhcp::SubnetID> SubnetIDSet;
/// @brief JSON adaptor for subnets adding IDs and canonizes relays.
///
/// Adding IDs is done in two passes walking through subnets.
/// -1- Add in the set used values and return false when there is no ID
/// so the caller can decide if the second pass is needed.
/// -2- For a subnet without an ID, assigned the next unused ID.
///
/// For relays an old syntax ip-address is translated into a new syntax
/// ip-addresses. Note as all canonization adaptor it is optional, i.e.,
/// code should work without it.
class AdaptorSubnet {
public:
/// @brief Constructor.
AdaptorSubnet();
/// @brief Destructor.
virtual ~AdaptorSubnet();
/// @brief Collect a subnet ID.
///
/// @param subnet The subnet.
/// @param set The reference to the set of assigned IDs.
/// @return True if the subnet has an ID, false otherwise.
static bool collectID(isc::data::ConstElementPtr subnet, SubnetIDSet& set);
/// @brief Assign subnet ID.
///
/// @param subnet The subnet.
/// @param set The reference to the set of assigned IDs.
/// @param next The next ID.
static void assignID(isc::data::ElementPtr subnet, SubnetIDSet& set,
isc::dhcp::SubnetID& next);
/// @brief Update relay.
///
/// Force the use of ip-addresses when it finds an ip-address entry.
/// Can be used for shared networks too.
///
/// @param subnet The subnet.
static void updateRelay(isc::data::ElementPtr subnet);
};
} // end of namespace isc::yang
} // end of namespace isc
#endif // ISC_ADAPTOR_SUBNET_H
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