f88ba0bf5a
When replication strategy class is created caller parr const reference on the config options which is, in turn, a map<string, string>. In the future r.s. classes will need to get "scylla specific" info along with legacy options and this patch prepares for that by passing more generic params argument into constructor. Currently the only inhabitant of the new params is the legacy options. Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
40 lines
1.4 KiB
C++
40 lines
1.4 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: (AGPL-3.0-or-later and Apache-2.0)
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*/
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#include "locator/everywhere_replication_strategy.hh"
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#include "utils/class_registrator.hh"
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#include "locator/token_metadata.hh"
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namespace locator {
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everywhere_replication_strategy::everywhere_replication_strategy(replication_strategy_params params) :
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abstract_replication_strategy(params, replication_strategy_type::everywhere_topology) {
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_natural_endpoints_depend_on_token = false;
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}
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future<host_id_set> everywhere_replication_strategy::calculate_natural_endpoints(const token& search_token, const token_metadata& tm) const {
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if (tm.sorted_tokens().empty()) {
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host_id_set result{host_id_vector_replica_set({host_id{}})};
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return make_ready_future<host_id_set>(std::move(result));
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}
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const auto& all_endpoints = tm.get_all_endpoints();
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return make_ready_future<host_id_set>(host_id_set(all_endpoints.begin(), all_endpoints.end()));
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}
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size_t everywhere_replication_strategy::get_replication_factor(const token_metadata& tm) const {
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return tm.sorted_tokens().empty() ? 1 : tm.count_normal_token_owners();
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}
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using registry = class_registrator<abstract_replication_strategy, everywhere_replication_strategy, replication_strategy_params>;
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static registry registrator("org.apache.cassandra.locator.EverywhereStrategy");
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static registry registrator_short_name("EverywhereStrategy");
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}
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