d624413ddd
As requested in #22120, moved the files and fixed other includes and build system. Moved files: - query.cc - query-request.hh - query-result.hh - query-result-reader.hh - query-result-set.cc - query-result-set.hh - query-result-writer.hh - query_id.hh - query_result_merger.hh Fixes: #22120 This is a cleanup, no need to backport Closes scylladb/scylladb#25105
128 lines
4.1 KiB
C++
128 lines
4.1 KiB
C++
/*
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*
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* Modified by ScyllaDB
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* Copyright (C) 2015-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (LicenseRef-ScyllaDB-Source-Available-1.0 and Apache-2.0)
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*/
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#pragma once
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#include "utils/UUID_gen.hh"
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#include <seastar/core/sstring.hh>
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#include "gms/inet_address.hh"
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#include "query/query-request.hh"
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#include "streaming/stream_fwd.hh"
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#include "streaming/stream_coordinator.hh"
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#include "streaming/stream_detail.hh"
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#include "streaming/stream_reason.hh"
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#include <vector>
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namespace streaming {
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/**
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* {@link StreamPlan} is a helper class that builds StreamOperation of given configuration.
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*
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* This is the class you want to use for building streaming plan and starting streaming.
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*/
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class stream_plan {
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private:
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using inet_address = gms::inet_address;
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using token = dht::token;
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stream_manager& _mgr;
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plan_id _plan_id;
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sstring _description;
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stream_reason _reason;
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service::frozen_topology_guard _topo_guard;
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std::vector<stream_event_handler*> _handlers;
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shared_ptr<stream_coordinator> _coordinator;
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bool _range_added = false;
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bool _aborted = false;
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public:
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/**
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* Start building stream plan.
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*
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* @param description Stream type that describes this StreamPlan
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*/
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stream_plan(stream_manager& mgr, sstring description, stream_reason reason = stream_reason::unspecified,
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service::frozen_topology_guard topo_guard = {})
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: _mgr(mgr)
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, _plan_id(plan_id{utils::UUID_gen::get_time_UUID()})
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, _description(description)
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, _reason(reason)
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, _topo_guard(topo_guard)
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, _coordinator(make_shared<stream_coordinator>())
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{
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}
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/**
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* Request data in {@code keyspace} and {@code ranges} from specific node.
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*
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* @param from endpoint address to fetch data from.
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* @param connecting Actual connecting address for the endpoint
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* @param keyspace name of keyspace
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* @param ranges ranges to fetch
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* @return this object for chaining
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*/
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stream_plan& request_ranges(locator::host_id from, sstring keyspace, dht::token_range_vector ranges);
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/**
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* Request data in {@code columnFamilies} under {@code keyspace} and {@code ranges} from specific node.
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*
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* @param from endpoint address to fetch data from.
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* @param connecting Actual connecting address for the endpoint
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* @param keyspace name of keyspace
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* @param ranges ranges to fetch
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* @param columnFamilies specific column families
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* @return this object for chaining
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*/
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stream_plan& request_ranges(locator::host_id from, sstring keyspace, dht::token_range_vector ranges, std::vector<sstring> column_families);
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/**
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* Add transfer task to send data of specific keyspace and ranges.
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*
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* @param to endpoint address of receiver
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* @param connecting Actual connecting address of the endpoint
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* @param keyspace name of keyspace
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* @param ranges ranges to send
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* @return this object for chaining
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*/
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stream_plan& transfer_ranges(locator::host_id to, sstring keyspace, dht::token_range_vector ranges);
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/**
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* Add transfer task to send data of specific {@code columnFamilies} under {@code keyspace} and {@code ranges}.
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*
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* @param to endpoint address of receiver
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* @param connecting Actual connecting address of the endpoint
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* @param keyspace name of keyspace
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* @param ranges ranges to send
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* @param columnFamilies specific column families
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* @return this object for chaining
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*/
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stream_plan& transfer_ranges(locator::host_id to, sstring keyspace, dht::token_range_vector ranges, std::vector<sstring> column_families);
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stream_plan& listeners(std::vector<stream_event_handler*> handlers);
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public:
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/**
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* @return true if this plan has no plan to execute
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*/
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bool is_empty() const {
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return !_coordinator->has_active_sessions();
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}
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/**
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* Execute this {@link StreamPlan} asynchronously.
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*
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* @return Future {@link StreamState} that you can use to listen on progress of streaming.
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*/
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future<stream_state> execute();
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void abort() noexcept;
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void do_abort();
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};
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} // namespace streaming
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