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https://github.com/scylladb/scylladb.git
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636e2877e2
Use collection_mutation_writer instead. Add to_managed_bytes() to cql3::raw_value to help avoid some copies. A special note for sstables/kl/reader.cc: this conversion is not straighforward, so we accumulate a list of cells and feed to the writer at the end. This is sub-optimal but this code is rarely used, best to be conservative.
110 lines
4.0 KiB
C++
110 lines
4.0 KiB
C++
/*
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* Copyright (C) 2015-present ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (LicenseRef-ScyllaDB-Source-Available-1.1 and Apache-2.0)
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*/
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#include "utils/assert.hh"
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#include "maps.hh"
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#include "operation.hh"
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#include "update_parameters.hh"
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#include "exceptions/exceptions.hh"
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#include "cql3/expr/evaluate.hh"
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#include "cql3/expr/expr-utils.hh"
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#include "mutation/mutation.hh"
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#include "types/map.hh"
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namespace cql3 {
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void
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maps::setter::execute(mutation& m, const clustering_key_prefix& row_key, const update_parameters& params) {
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cql3::raw_value value = expr::evaluate(*_e, params._options);
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execute(m, row_key, params, column, value);
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}
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void
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maps::setter::execute(mutation& m, const clustering_key_prefix& row_key, const update_parameters& params, const column_definition& column, const cql3::raw_value& value) {
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if (column.type->is_multi_cell()) {
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// Delete all cells first, then put new ones
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m.set_cell(row_key, column, collection_mutation_writer(params.make_tombstone_just_before()).finish());
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}
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do_put(m, row_key, params, value, column);
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}
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void
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maps::setter_by_key::fill_prepare_context(prepare_context& ctx) {
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operation::fill_prepare_context(ctx);
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expr::fill_prepare_context(_k, ctx);
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}
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void
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maps::setter_by_key::execute(mutation& m, const clustering_key_prefix& prefix, const update_parameters& params) {
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using exceptions::invalid_request_exception;
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throwing_assert(column.type->is_multi_cell()); // "Attempted to set a value for a single key on a frozen map"m
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auto key = expr::evaluate(_k, params._options);
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auto value = expr::evaluate(*_e, params._options);
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if (key.is_null()) {
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throw invalid_request_exception("Invalid null map key");
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}
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auto ctype = static_cast<const map_type_impl*>(column.type.get());
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auto avalue = !value.is_null() ?
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params.make_cell(*ctype->get_values_type(), value.view(), atomic_cell::collection_member::yes)
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: params.make_dead_cell();
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collection_mutation_writer update(tombstone{});
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update.push_back(key.to_managed_bytes_view(), std::move(avalue));
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m.set_cell(prefix, column, std::move(update).finish());
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}
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void
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maps::putter::execute(mutation& m, const clustering_key_prefix& prefix, const update_parameters& params) {
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throwing_assert(column.type->is_multi_cell()); // "Attempted to add items to a frozen map";
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cql3::raw_value value = expr::evaluate(*_e, params._options);
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do_put(m, prefix, params, value, column);
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}
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void
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maps::do_put(mutation& m, const clustering_key_prefix& prefix, const update_parameters& params,
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const cql3::raw_value& map_value, const column_definition& column) {
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if (column.type->is_multi_cell()) {
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if (map_value.is_null()) {
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return;
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}
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collection_mutation_writer mut(tombstone{});
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auto ctype = static_cast<const map_type_impl*>(column.type.get());
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for (auto&& e : expr::get_map_elements(map_value)) {
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mut.push_back(e.first, params.make_cell(*ctype->get_values_type(), raw_value_view::make_value(e.second), atomic_cell::collection_member::yes));
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}
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m.set_cell(prefix, column, std::move(mut).finish());
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} else {
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// for frozen maps, we're overwriting the whole cell
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if (map_value.is_null()) {
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m.set_cell(prefix, column, params.make_dead_cell());
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} else {
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m.set_cell(prefix, column, params.make_cell(*column.type, map_value.view()));
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}
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}
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}
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void
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maps::discarder_by_key::execute(mutation& m, const clustering_key_prefix& prefix, const update_parameters& params) {
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throwing_assert(column.type->is_multi_cell()); // "Attempted to delete a single key in a frozen map";
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cql3::raw_value key = expr::evaluate(*_e, params._options);
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if (key.is_null()) {
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throw exceptions::invalid_request_exception("Invalid null map key");
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}
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collection_mutation_writer mut(tombstone{});
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mut.push_back(key.to_managed_bytes_view(), params.make_dead_cell());
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m.set_cell(prefix, column, std::move(mut).finish());
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}
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}
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