mirror of
https://github.com/scylladb/scylladb.git
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118 lines
3.2 KiB
C++
118 lines
3.2 KiB
C++
/*
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* Copyright (C) 2015-present ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (LicenseRef-ScyllaDB-Source-Available-1.1 and Apache-2.0)
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*/
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#pragma once
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#include "gms/inet_address.hh"
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#include <seastar/core/sstring.hh>
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#include <seastar/net/api.hh>
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#include "service/client_routes.hh"
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namespace cql_transport {
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class event {
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public:
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enum class event_type { TOPOLOGY_CHANGE, STATUS_CHANGE, SCHEMA_CHANGE, CLIENT_ROUTES_CHANGE };
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const event_type type;
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private:
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event(const event_type& type_);
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public:
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class topology_change;
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class status_change;
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class schema_change;
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class client_routes_change;
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};
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class event::topology_change : public event {
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public:
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enum class change_type { NEW_NODE, REMOVED_NODE, MOVED_NODE };
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const change_type change;
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const socket_address node;
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topology_change(change_type change, const socket_address& node);
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static topology_change new_node(const gms::inet_address& host, uint16_t port);
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static topology_change removed_node(const gms::inet_address& host, uint16_t port);
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};
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class event::status_change : public event {
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public:
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enum class status_type { UP, DOWN };
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const status_type status;
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const socket_address node;
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status_change(status_type status, const socket_address& node);
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static status_change node_up(const gms::inet_address& host, uint16_t port);
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static status_change node_down(const gms::inet_address& host, uint16_t port);
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};
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class event::schema_change : public event {
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public:
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enum class change_type { CREATED, UPDATED, DROPPED };
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enum class target_type { KEYSPACE, TABLE, TYPE, FUNCTION, AGGREGATE };
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const change_type change;
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const target_type target;
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// Every target is followed by at least a keyspace.
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const sstring keyspace;
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// Target types other than keyspace have a list of arguments.
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const std::vector<sstring> arguments;
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schema_change(change_type change, target_type target, sstring keyspace, std::vector<sstring> arguments);
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template <typename... Ts>
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schema_change(change_type change, target_type target, sstring keyspace, Ts... arguments)
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: schema_change(change, target, keyspace, std::vector<sstring>{std::move(arguments)...}) {}
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};
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class event::client_routes_change : public event {
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public:
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enum class change_type { UPDATE_NODES };
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const change_type change;
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private:
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const std::set<service::client_routes_service::client_route_key> client_route_keys;
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public:
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client_routes_change(const std::set<service::client_routes_service::client_route_key>& client_route_keys)
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: event(event_type::CLIENT_ROUTES_CHANGE)
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, change(change_type::UPDATE_NODES)
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, client_route_keys(client_route_keys)
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{ }
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std::vector<sstring> get_connection_ids() const {
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std::vector<sstring> v;
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v.reserve(client_route_keys.size());
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for (const auto& k : client_route_keys) {
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v.emplace_back(k.connection_id);
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}
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return v;
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}
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std::vector<sstring> get_host_ids() const {
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std::vector<sstring> v;
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v.reserve(client_route_keys.size());
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for (const auto& k : client_route_keys) {
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v.emplace_back(fmt::to_string(k.host_id));
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}
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return v;
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}
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};
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}
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