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// Copyright (C) 2019 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 CB_CTL_DHCP_H
#define CB_CTL_DHCP_H
#include <cc/stamped_value.h>
#include <process/cb_ctl_base.h>
#include <dhcpsrv/srv_config.h>
namespace isc {
namespace dhcp {
/// @brief Base class for implementing mechanisms to control the use
/// of the Configuration Backends by DHCPv4 and DHCPv6 servers.
///
/// It includes common methods used by the DHCPv4 and DHCPv6 specific
/// derivations.
///
/// @tparam ConfigBackendMgrType Type of the Config Backend Manager used
/// by the server implementing this class. For example, for the DHCPv4
/// server it will be @c ConfigBackendDHCPv4Mgr.
template<typename ConfigBackendMgrType>
class CBControlDHCP : public process::CBControlBase<ConfigBackendMgrType> {
public:
/// @brief Constructor.
CBControlDHCP()
: process::CBControlBase<ConfigBackendMgrType>() {
}
protected:
/// @brief Adds globals fetched from config backend(s) to a SrvConfig instance
///
/// Iterates over the given collection of global parameters and adds them to the
/// given configuration's list of configured globals.
///
/// @param external_cfg SrvConfig instance to update
/// @param cb_globals collection of global parameters supplied by configuration
/// backend
void addGlobalsToConfig(SrvConfigPtr external_cfg,
data::StampedValueCollection& cb_globals) const {
const auto& index = cb_globals.get<data::StampedValueNameIndexTag>();
for (auto cb_global = index.begin(); cb_global != index.end(); ++cb_global) {
if ((*cb_global)->amNull()) {
continue;
}
external_cfg->addConfiguredGlobal((*cb_global)->getName(),
(*cb_global)->getElementValue());
}
}
};
} // end of namespace isc::dhcp
} // end of namespace isc
#endif // CB_CTL_DHCP_H
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