Files
scylladb/data_dictionary/storage_options.hh
Ernest Zaslavsky 17e3c01f4e scylla-sstable: Enable Support for S3 SSTables
Configure the sstable manager to correctly handle storage options based
on the input type (local or S3-stored sstables). This tweak allows for
mixing both storage types within a single call, improving flexibility
and functionality.
2025-03-09 09:50:36 +02:00

86 lines
2.5 KiB
C++

/*
* Copyright (C) 2021-present ScyllaDB
*/
/*
* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
*/
#pragma once
#include <filesystem>
#include <map>
#include <variant>
#include <seastar/core/sstring.hh>
#include "schema/schema_fwd.hh"
#include "utils/s3/utils/manip_s3.hh"
#include "seastarx.hh"
namespace seastar {
class abort_source;
}
namespace data_dictionary {
struct storage_options {
struct local {
std::filesystem::path dir;
static constexpr std::string_view name = "LOCAL";
static local from_map(const std::map<sstring, sstring>&);
std::map<sstring, sstring> to_map() const;
bool operator==(const local&) const = default;
};
struct s3 {
sstring bucket;
sstring endpoint;
std::variant<sstring, table_id> location;
seastar::abort_source* abort_source = nullptr;
static constexpr std::string_view name = "S3";
static s3 from_map(const std::map<sstring, sstring>&);
std::map<sstring, sstring> to_map() const;
bool operator==(const s3&) const = default;
};
using value_type = std::variant<local, s3>;
value_type value = local{};
storage_options() = default;
bool is_local_type() const noexcept;
std::string_view type_string() const;
std::map<sstring, sstring> to_map() const;
bool can_update_to(const storage_options& new_options);
static value_type from_map(std::string_view type, std::map<sstring, sstring> values);
storage_options append_to_s3_prefix(const sstring& s) const;
};
inline storage_options make_local_options(std::filesystem::path dir) {
storage_options so;
so.value = data_dictionary::storage_options::local { .dir = std::move(dir) };
return so;
}
inline storage_options make_s3_options(const std::string& endpoint, const std::string& fqn) {
std::string bucket;
std::string object;
s3::s3fqn_to_parts(fqn, bucket, object);
object = std::filesystem::path(object).parent_path().string(); // remove the filename and trailing separator from the path
storage_options so;
so.value = storage_options::s3{.bucket = std::move(bucket), .endpoint = endpoint, .location = std::move(object)};
return so;
}
} // namespace data_dictionary
template <>
struct fmt::formatter<data_dictionary::storage_options> {
constexpr auto parse(format_parse_context& ctx) { return ctx.begin(); }
auto format(const data_dictionary::storage_options&, fmt::format_context& ctx) const -> decltype(ctx.out());
};