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da82c5f0b0
To migrate service levels to be raft managed, obtain `group0_guard` to be able to pass it to service_level_controller's methods. Using this mechanism also automatically provides retries in case of concurrent group0 operation.
56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
/*
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* Copyright (C) 2021-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include "cql3/cql_statement.hh"
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#include "cql3/query_processor.hh"
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#include "raw/parsed_statement.hh"
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#include "service/query_state.hh"
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namespace cql3 {
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namespace statements {
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///
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/// A logical argument error for a service_level statement operation.
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///
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class service_level_argument_exception : public std::invalid_argument {
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public:
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using std::invalid_argument::invalid_argument;
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};
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///
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/// An exception to indicate that the service level given as parameter doesn't exist.
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///
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class nonexitent_service_level_exception : public service_level_argument_exception {
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public:
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nonexitent_service_level_exception(sstring service_level_name)
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: service_level_argument_exception(format("Service Level {} doesn't exists.", service_level_name)) {
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}
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};
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class service_level_statement : public raw::parsed_statement, public cql_statement_no_metadata {
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public:
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service_level_statement() : cql_statement_no_metadata(&timeout_config::other_timeout) {}
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virtual bool needs_guard(query_processor& qp, service::query_state& state) const override;
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uint32_t get_bound_terms() const override;
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bool depends_on(std::string_view ks_name, std::optional<std::string_view> cf_name) const override;
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future<> check_access(query_processor& qp, const service::client_state& state) const override;
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};
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}
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}
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