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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_TRANSLATOR_DATABASE_H
#define ISC_TRANSLATOR_DATABASE_H 1
#include <yang/translator.h>
#include <list>
namespace isc {
namespace yang {
/// Database access translation between YANG and JSON
///
/// JSON syntax for all Kea servers with database access is:
/// @code
/// {
/// "type": <type>, /// required
/// "user": <user>,
/// "password": <password>,
/// "host": <host>,
/// "name": <name>,
/// "persist": <persist flag>,
/// "port": <port>,
/// "lfc-interval": <lfc interval>,
/// "readonly": <readonly flag>,
/// "trust-anchor": <trust anchor>,
/// "cert-file": <cert file>,
/// "key-file": <key file>,
/// "cipher-list": <cipher list>,
/// "connect-timeout": <connect timeout>,
/// "max-reconnect-tries": <maximum reconnect tries>,
/// "reconnect-wait-time": <reconnect wait time>,
/// "max-row-errors": <maximum row errors>,
/// "user-context": { <json map> },
/// "comment": <comment>
/// }
/// @endcode
///
/// YANG syntax for kea-dhcp[46] is using database-type as the list key:
/// @code
/// +--rw database
/// +--rw database-type string
/// +--rw user? string
/// +--rw password? string
/// +--rw host? string
/// +--rw name? string
/// +--rw persist? boolean
/// +--rw port? uint16
/// +--rw lfc-interval? uint32
/// +--rw readonly? boolean
/// +--rw trust-anchor? string
/// +--rw cert-file? string
/// +--rw key-file? string
/// +--rw cipher-list? string
/// +--rw connect-timeout? uint32
/// +--rw max-reconnect-tries? uint32
/// +--rw reconnect-wait-time? uint32
/// +--rw max-row-errors? uint32
/// +--rw on-fail? string
/// +--rw user-context? user-context
/// @endcode
///
/// An example in JSON and YANG formats:
/// @code
/// [
/// {
/// "type": "mysql",
/// "name": "kea",
/// "user": "kea",
/// "password": "kea",
/// "host": "localhost",
/// "port": 3306
/// }
/// ]
/// @endcode
/// @code
/// /kea-dhcp6-server:config (container)
/// /kea-dhcp6-server:config/
/// hosts-database[database-type='mysql'] (list instance)
/// /kea-dhcp6-server:config/
/// hosts-database[database-type='mysql']/type = mysql
/// /kea-dhcp6-server:config/
/// hosts-database[database-type='mysql']/name = kea
/// /kea-dhcp6-server:config/
/// hosts-database[database-type='mysql']/user = kea
/// /kea-dhcp6-server:config/
/// hosts-database[database-type='mysql']/password = kea
/// /kea-dhcp6-server:config/
/// hosts-database[database-type='mysql']/host = localhost
/// /kea-dhcp6-server:config/
/// hosts-database[database-type='mysql']/port = 3306
/// @endcode
/// @brief A translator class for converting a database access parameters
/// between YANG and JSON.
///
/// Supports the following models:
/// - kea-dhcp4-server
/// - kea-dhcp6-server
class TranslatorDatabase : virtual public TranslatorBasic {
public:
/// @brief Constructor.
///
/// @param session Sysrepo session.
/// @param model Model name.
TranslatorDatabase(sysrepo::S_Session session, const std::string& model);
/// @brief Destructor.
virtual ~TranslatorDatabase();
/// @brief Get and translate a database access from YANG to JSON.
///
/// @param xpath The xpath of the database.
/// @return JSON representation of the database.
/// @throw SysrepoError when sysrepo raises an error.
isc::data::ElementPtr getDatabase(const std::string& xpath);
/// @brief Translate and set database access from JSON to YANG.
///
/// Null elem argument removes the database entry.
///
/// @param xpath The xpath of the database access.
/// @param elem The JSON element.
/// @param skip The skip type field flag.
void setDatabase(const std::string& xpath,
isc::data::ConstElementPtr elem,
bool skip = false);
protected:
/// @brief getDatabase JSON for kea-dhcp[46]-server models.
///
/// @param xpath The xpath of the database.
/// @return JSON representation of the database or null if none.
/// @throw SysrepoError when sysrepo raises an error.
isc::data::ElementPtr getDatabaseKea(const std::string& xpath);
/// @brief setDatabase for kea-dhcp[46]-server models.
///
/// @param xpath The xpath of the database access.
/// @param elem The JSON element.
/// @param skip The skip type field flag.
/// @throw BadValue on database without type,
void setDatabaseKea(const std::string& xpath,
isc::data::ConstElementPtr elem,
bool skip);
};
/// @brief A translator class for converting a database access list between
/// YANG and JSON.
///
/// Supports kea-dhcp[46]-server, does not exist in ietf-dhcpv6-server.
class TranslatorDatabases : virtual public TranslatorDatabase {
public:
/// @brief Constructor.
///
/// @param session Sysrepo session.
/// @param model Model name.
TranslatorDatabases(sysrepo::S_Session session, const std::string& model);
/// @brief Destructor.
virtual ~TranslatorDatabases();
/// @brief Get and translate database accesses from YANG to JSON.
///
/// @param xpath The xpath of databases including the list name.
/// @return JSON representation of databases.
/// @throw SysrepoError when sysrepo raises an error.
isc::data::ConstElementPtr getDatabases(const std::string& xpath);
/// @brief Translate and set database accesses from JSON to YANG.
///
/// Null elem argument removes the database list.
///
/// @param xpath The xpath of databases including the list name.
/// @param elem The JSON element.
void setDatabases(const std::string& xpath,
isc::data::ConstElementPtr elem);
protected:
/// @brief getDatabases JSON for kea-dhcp[46]-server models.
///
/// @param xpath The xpath of databases including the list name.
/// @return JSON representation of databases.
/// @throw SysrepoError when sysrepo raises an error.
isc::data::ElementPtr getDatabasesKea(const std::string& xpath);
/// @brief setDatabases for kea-dhcp[46]-server models.
///
/// @param xpath The xpath of databases including the list name.
/// @param elem The JSON element.
/// @throw BadValue on database without type,
void setDatabasesKea(const std::string& xpath,
isc::data::ConstElementPtr elem);
};
} // namespace yang
} // namespace isc
#endif // ISC_TRANSLATOR_DATABASE_H
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