mirror of
https://github.com/ClickHouse/ClickHouse.git
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117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
#pragma once
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#include <Client/ClientBase.h>
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#include <Core/ExternalTable.h>
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namespace DB
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{
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class Client : public ClientBase
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{
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public:
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Client() = default;
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void initialize(Poco::Util::Application & self) override;
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protected:
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int mainImpl() override;
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bool supportPasswordOption() const override { return true; }
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bool splitQueries() const override { return true; }
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void reconnectIfNeeded() override
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{
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if (!connection->checkConnected())
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connect();
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}
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bool processMultiQueryFromFile(const String & file) override
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{
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connection->setDefaultDatabase(connection_parameters.default_database);
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String text;
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ReadBufferFromFile in(file);
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readStringUntilEOF(text, in);
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return processMultiQuery(text);
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}
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std::vector<String> loadWarningMessages();
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void loadSuggestionDataIfPossible() override;
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bool checkErrorMatchesHints(const TestHint & test_hint, bool had_error) override;
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void reportQueryError() const override;
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bool processWithFuzzing(const String & text) override;
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void executeParsedQueryPrefix() override;
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void executeParsedQueryImpl() override;
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void executeParsedQuerySuffix() override;
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void readArguments(int argc, char ** argv,
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Arguments & common_arguments,
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std::vector<Arguments> & external_tables_arguments) override;
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void printHelpMessage(const OptionsDescription & options_description) override;
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void addOptions(OptionsDescription & options_description) override;
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void processOptions(const OptionsDescription & options_description,
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const CommandLineOptions & options,
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const std::vector<Arguments> & external_tables_arguments) override;
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void processConfig() override;
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private:
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std::unique_ptr<Connection> connection; /// Connection to DB.
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String format; /// Query results output format.
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bool is_default_format = true; /// false, if format is set in the config or command line.
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size_t format_max_block_size = 0; /// Max block size for console output.
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String insert_format; /// Format of INSERT data that is read from stdin in batch mode.
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size_t insert_format_max_block_size = 0; /// Max block size when reading INSERT data.
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size_t max_client_network_bandwidth = 0; /// The maximum speed of data exchange over the network for the client in bytes per second.
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UInt64 server_revision = 0;
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String server_version;
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/// External tables info.
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std::list<ExternalTable> external_tables;
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/// Dictionary with query parameters for prepared statements.
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NameToNameMap query_parameters;
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ConnectionParameters connection_parameters;
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void connect();
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void printChangedSettings() const;
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void sendExternalTables();
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void executeInsertQuery();
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void executeOrdinaryQuery();
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void sendData(Block & sample, const ColumnsDescription & columns_description);
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void sendDataFrom(ReadBuffer & buf, Block & sample,
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const ColumnsDescription & columns_description);
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void receiveResult();
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void receiveLogs();
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bool receiveEndOfQuery();
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bool receiveAndProcessPacket(bool cancelled);
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bool receiveSampleBlock(Block & out, ColumnsDescription & columns_description);
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void initBlockOutputStream(const Block & block);
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void initLogsOutputStream();
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void onData(Block & block);
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void onLogData(Block & block);
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void onTotals(Block & block);
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void onExtremes(Block & block);
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void onProgress(const Progress & value);
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void writeFinalProgress();
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void onReceiveExceptionFromServer(std::unique_ptr<Exception> && e);
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void onProfileInfo(const BlockStreamProfileInfo & profile_info);
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void onEndOfStream();
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};
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}
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