49a177b51e
To unify error handling, the low-level client methods now return `std::expected` instead of throwing exceptions. This allows for consistent and explicit error propagation from the client up to the caller. The relevant error types have been moved to a new `vector_search/error.hh` header to centralize their definitions.
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/*
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* Copyright (C) 2025-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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#pragma once
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#include <seastar/http/reply.hh>
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#include <seastar/core/sstring.hh>
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#include <fmt/format.h>
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namespace vector_search {
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/// The service is disabled.
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struct disabled_error {};
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/// The operation was aborted.
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struct aborted_error {};
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/// The vector-store addr is unavailable (not possible to get an addr from the dns service).
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struct addr_unavailable_error {};
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/// The vector-store service is unavailable.
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struct service_unavailable_error {};
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/// The error from the vector-store service.
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struct service_error {
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seastar::http::reply::status_type status; ///< The HTTP status code from the vector-store service.
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};
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/// An unsupported reply format from the vector-store service.
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struct service_reply_format_error {};
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struct error_visitor {
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seastar::sstring operator()(service_error e) const {
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return fmt::format("Vector Store error: HTTP status {}", e.status);
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}
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seastar::sstring operator()(disabled_error) const {
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return fmt::format("Vector Store is disabled");
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}
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seastar::sstring operator()(aborted_error) const {
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return fmt::format("Vector Store request was aborted");
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}
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seastar::sstring operator()(addr_unavailable_error) const {
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return fmt::format("Vector Store service address could not be fetched from DNS");
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}
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seastar::sstring operator()(service_unavailable_error) const {
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return fmt::format("Vector Store service is unavailable");
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}
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seastar::sstring operator()(service_reply_format_error) const {
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return fmt::format("Vector Store returned an invalid JSON");
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}
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};
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} // namespace vector_search
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