ee3dbcd294
Add operator<< for result sets to make debugging schema merging code issues easier. Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
123 lines
3.8 KiB
C++
123 lines
3.8 KiB
C++
/*
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* Copyright 2015 Cloudius Systems
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*/
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#include "query-result-set.hh"
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namespace query {
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std::ostream& operator<<(std::ostream& out, const result_set_row& row) {
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for (auto&& cell : row._cells) {
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auto&& type = cell.second.type();
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auto&& value = cell.second.value();
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out << cell.first << "=\"" << type->decompose(value) << "\" ";
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}
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return out;
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}
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std::ostream& operator<<(std::ostream& out, const result_set& rs) {
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for (auto&& row : rs._rows) {
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out << row << std::endl;
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}
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return out;
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}
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result_set_builder::result_set_builder(schema_ptr schema)
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: _schema{schema}
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{ }
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lw_shared_ptr<result_set> result_set_builder::build() const {
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return make_lw_shared<result_set>(_rows);
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}
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void result_set_builder::accept_new_partition(const partition_key& key, uint32_t row_count)
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{
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_pkey_cells = deserialize(key);
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}
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void result_set_builder::accept_new_partition(uint32_t row_count)
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{
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}
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void result_set_builder::accept_new_row(const clustering_key& key, const result_row_view& static_row, const result_row_view& row)
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{
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auto ckey_cells = deserialize(key);
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auto static_cells = deserialize(static_row, true);
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auto regular_cells = deserialize(row, false);
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std::unordered_map<sstring, data_value> cells;
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cells.insert(_pkey_cells.begin(), _pkey_cells.end());
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cells.insert(ckey_cells.begin(), ckey_cells.end());
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cells.insert(static_cells.begin(), static_cells.end());
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cells.insert(regular_cells.begin(), regular_cells.end());
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_rows.emplace_back(_schema, std::move(cells));
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}
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void result_set_builder::accept_new_row(const query::result_row_view &static_row, const query::result_row_view &row)
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{
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auto static_cells = deserialize(static_row, true);
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auto regular_cells = deserialize(row, false);
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std::unordered_map<sstring, data_value> cells;
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cells.insert(_pkey_cells.begin(), _pkey_cells.end());
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cells.insert(static_cells.begin(), static_cells.end());
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cells.insert(regular_cells.begin(), regular_cells.end());
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_rows.emplace_back(_schema, std::move(cells));
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}
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void result_set_builder::accept_partition_end(const result_row_view& static_row)
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{
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_pkey_cells.clear();
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}
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std::unordered_map<sstring, data_value>
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result_set_builder::deserialize(const partition_key& key)
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{
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std::unordered_map<sstring, data_value> cells;
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auto i = key.begin(*_schema);
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for (auto&& col : _schema->partition_key_columns()) {
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cells.emplace(col.name_as_text(), col.type->deserialize_value(*i));
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++i;
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}
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return cells;
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}
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std::unordered_map<sstring, data_value>
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result_set_builder::deserialize(const clustering_key& key)
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{
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std::unordered_map<sstring, data_value> cells;
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auto i = key.begin(*_schema);
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for (auto&& col : _schema->clustering_key_columns()) {
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cells.emplace(col.name_as_text(), col.type->deserialize_value(*i));
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++i;
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}
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return cells;
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}
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std::unordered_map<sstring, data_value>
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result_set_builder::deserialize(const result_row_view& row, bool is_static)
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{
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std::unordered_map<sstring, data_value> cells;
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auto i = row.iterator();
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auto columns = is_static ? _schema->static_columns() : _schema->regular_columns();
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for (auto &&col : columns) {
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if (col.is_atomic()) {
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auto cell = i.next_atomic_cell();
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if (cell) {
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auto view = cell.value();
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cells.emplace(col.name_as_text(), col.type->deserialize_value(view.value()));
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}
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} else {
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auto cell = i.next_collection_cell();
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if (cell) {
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auto ctype = static_pointer_cast<const collection_type_impl>(col.type);
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auto view = cell.value();
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cells.emplace(col.name_as_text(), ctype->deserialize_value(view.data, serialization_format::internal()));
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}
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}
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}
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return cells;
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}
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}
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