609e893055
You can now do: fail(unimplemented::cause::PAGING); and: warn(unimplemented::cause::PAGING);
126 lines
4.7 KiB
C++
126 lines
4.7 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright 2015 Cloudius Systems
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*
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* Modified by Cloudius Systems
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*/
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#include "cql3/query_processor.hh"
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#include "cql3/CqlParser.hpp"
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#include "cql3/error_collector.hh"
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namespace cql3 {
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using namespace statements;
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using namespace transport::messages;
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thread_local logging::logger log("query_processor");
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future<::shared_ptr<result_message>>
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query_processor::process(const sstring_view& query_string, service::query_state& query_state, query_options& options)
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{
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std::unique_ptr<parsed_statement::prepared> p = get_statement(query_string, query_state.get_client_state());
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options.prepare(p->bound_names);
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auto cql_statement = p->statement;
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if (cql_statement->get_bound_terms() != options.get_values().size()) {
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throw exceptions::invalid_request_exception("Invalid amount of bind variables");
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}
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warn(unimplemented::cause::METRICS);
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#if 0
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if (!queryState.getClientState().isInternal)
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metrics.regularStatementsExecuted.inc();
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#endif
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return process_statement(std::move(cql_statement), query_state, options);
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}
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future<::shared_ptr<result_message>>
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query_processor::process_statement(::shared_ptr<cql_statement> statement, service::query_state& query_state,
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const query_options& options)
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{
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#if 0
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logger.trace("Process {} @CL.{}", statement, options.getConsistency());
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#endif
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auto& client_state = query_state.get_client_state();
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statement->check_access(client_state);
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statement->validate(client_state);
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return statement->execute(_proxy, query_state, options)
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.then([statement] (auto msg) {
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if (msg) {
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return make_ready_future<::shared_ptr<result_message>>(std::move(msg));
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}
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return make_ready_future<::shared_ptr<result_message>>(
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::make_shared<result_message::void_message>());
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});
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}
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std::unique_ptr<parsed_statement::prepared>
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query_processor::get_statement(const sstring_view& query, service::client_state& client_state)
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{
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#if 0
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Tracing.trace("Parsing {}", queryStr);
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#endif
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::shared_ptr<parsed_statement> statement = parse_statement(query);
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// Set keyspace for statement that require login
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auto cf_stmt = dynamic_pointer_cast<cf_statement>(statement);
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if (cf_stmt) {
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cf_stmt->prepare_keyspace(client_state);
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}
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#if 0
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Tracing.trace("Preparing statement");
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#endif
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return statement->prepare(_db.local());
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}
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::shared_ptr<parsed_statement>
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query_processor::parse_statement(const sstring_view& query)
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{
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try {
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error_collector<cql3_parser::CqlLexer::RecognizerType> lexer_error_collector(query);
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error_collector<cql3_parser::CqlParser::RecognizerType> parser_error_collector(query);
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cql3_parser::CqlLexer::InputStreamType input{reinterpret_cast<const ANTLR_UINT8*>(query.begin()), ANTLR_ENC_UTF8, static_cast<ANTLR_UINT32>(query.size()), nullptr};
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cql3_parser::CqlLexer lexer{&input};
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lexer.set_error_listener(lexer_error_collector);
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cql3_parser::CqlParser::TokenStreamType tstream(ANTLR_SIZE_HINT, lexer.get_tokSource());
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cql3_parser::CqlParser parser{&tstream};
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parser.set_error_listener(parser_error_collector);
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auto statement = parser.query();
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lexer_error_collector.throw_first_syntax_error();
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parser_error_collector.throw_first_syntax_error();
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if (!statement) {
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// TODO: We should plug into get_rec()->displayRecognitionError and call error_collector from there
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throw exceptions::syntax_exception("Parsing failed");
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};
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return std::move(statement);
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} catch (const exceptions::recognition_exception& e) {
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throw exceptions::syntax_exception(sprint("Invalid or malformed CQL query string: %s", e.what()));
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} catch (const std::exception& e) {
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log.error("The statement: {} could not be parsed: {}", query, e.what());
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throw exceptions::syntax_exception(sprint("Failed parsing statement: [%s] reason: %s", query, e.what()));
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}
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}
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}
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