mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-22 07:31:57 +00:00
Moved file to appropriate place; split to cpp #2482
This commit is contained in:
Alexey Milovidov
parent
f1ba2f9a33
commit
e0f1637506
@ -20,7 +20,6 @@
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#include <Common/Stopwatch.h>
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#include <Common/Exception.h>
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#include <Common/ShellCommand.h>
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#include <Common/ExternalTable.h>
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#include <Common/UnicodeBar.h>
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#include <Common/formatReadable.h>
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#include <Common/NetException.h>
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@ -31,6 +30,7 @@
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#include <Common/config_version.h>
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#include <Core/Types.h>
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#include <Core/QueryProcessingStage.h>
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#include <Core/ExternalTable.h>
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#include <IO/ReadBufferFromFileDescriptor.h>
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#include <IO/WriteBufferFromFileDescriptor.h>
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#include <IO/WriteBufferFromFile.h>
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@ -9,7 +9,7 @@
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#include <ext/scope_guard.h>
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#include <Common/ExternalTable.h>
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#include <Core/ExternalTable.h>
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#include <Common/StringUtils/StringUtils.h>
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#include <Common/escapeForFileName.h>
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#include <Common/getFQDNOrHostName.h>
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@ -6,6 +6,10 @@
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#include <Common/ClickHouseRevision.h>
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#include <Common/CurrentThread.h>
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#include <Common/Stopwatch.h>
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#include <Common/ClickHouseRevision.h>
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#include <Common/Stopwatch.h>
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#include <Common/NetException.h>
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#include <Common/config_version.h>
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#include <IO/Progress.h>
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#include <IO/CompressedReadBuffer.h>
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#include <IO/CompressedWriteBuffer.h>
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@ -22,11 +26,7 @@
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#include <Interpreters/InternalTextLogsQueue.h>
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#include <Storages/StorageMemory.h>
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#include <Storages/StorageReplicatedMergeTree.h>
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#include <Common/ClickHouseRevision.h>
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#include <Common/Stopwatch.h>
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#include <Common/ExternalTable.h>
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#include <Common/NetException.h>
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#include <Common/config_version.h>
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#include <Core/ExternalTable.h>
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#include "TCPHandler.h"
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@ -1,232 +0,0 @@
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#pragma once
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#include <boost/program_options.hpp>
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#include <boost/algorithm/string.hpp>
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#include <DataStreams/AsynchronousBlockInputStream.h>
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#include <DataTypes/DataTypeFactory.h>
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#include <Interpreters/Context.h>
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#include <IO/copyData.h>
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#include <IO/ReadBufferFromIStream.h>
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#include <IO/ReadBufferFromFile.h>
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#include <IO/LimitReadBuffer.h>
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#include <Storages/StorageMemory.h>
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#include <Client/Connection.h>
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#include <Poco/Net/HTMLForm.h>
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#include <Poco/Net/PartHandler.h>
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#include <Poco/Net/MessageHeader.h>
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#include <Common/HTMLForm.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int BAD_ARGUMENTS;
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}
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/// The base class containing the basic information about external table and
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/// basic functions for extracting this information from text fields.
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class BaseExternalTable
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{
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public:
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std::string file; /// File with data or '-' if stdin
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std::string name; /// The name of the table
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std::string format; /// Name of the data storage format
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/// Description of the table structure: (column name, data type name)
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std::vector<std::pair<std::string, std::string>> structure;
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std::unique_ptr<ReadBuffer> read_buffer;
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Block sample_block;
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virtual ~BaseExternalTable() {}
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/// Initialize read_buffer, depending on the data source. By default, does nothing.
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virtual void initReadBuffer() {}
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/// Get the table data - a pair (a stream with the contents of the table, the name of the table)
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ExternalTableData getData(const Context & context)
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{
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initReadBuffer();
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initSampleBlock();
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auto input = context.getInputFormat(format, *read_buffer, sample_block, DEFAULT_BLOCK_SIZE);
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return std::make_pair(std::make_shared<AsynchronousBlockInputStream>(input), name);
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}
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protected:
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/// Clear all accumulated information
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void clean()
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{
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name = "";
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file = "";
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format = "";
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structure.clear();
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sample_block = Block();
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read_buffer.reset();
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}
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/// Function for debugging information output
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void write()
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{
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std::cerr << "file " << file << std::endl;
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std::cerr << "name " << name << std::endl;
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std::cerr << "format " << format << std::endl;
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std::cerr << "structure: \n";
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for (size_t i = 0; i < structure.size(); ++i)
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std::cerr << "\t" << structure[i].first << " " << structure[i].second << std::endl;
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}
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static std::vector<std::string> split(const std::string & s, const std::string & d)
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{
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std::vector<std::string> res;
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boost::split(res, s, boost::algorithm::is_any_of(d), boost::algorithm::token_compress_on);
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return res;
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}
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/// Construct the `structure` vector from the text field `structure`
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virtual void parseStructureFromStructureField(const std::string & argument)
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{
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std::vector<std::string> vals = split(argument, " ,");
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if (vals.size() & 1)
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throw Exception("Odd number of attributes in section structure", ErrorCodes::BAD_ARGUMENTS);
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for (size_t i = 0; i < vals.size(); i += 2)
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structure.emplace_back(vals[i], vals[i + 1]);
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}
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/// Construct the `structure` vector from the text field `types`
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virtual void parseStructureFromTypesField(const std::string & argument)
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{
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std::vector<std::string> vals = split(argument, " ,");
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for (size_t i = 0; i < vals.size(); ++i)
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structure.emplace_back("_" + toString(i + 1), vals[i]);
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}
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private:
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/// Initialize sample_block according to the structure of the table stored in the `structure`
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void initSampleBlock()
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{
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const DataTypeFactory & data_type_factory = DataTypeFactory::instance();
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for (size_t i = 0; i < structure.size(); ++i)
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{
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ColumnWithTypeAndName column;
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column.name = structure[i].first;
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column.type = data_type_factory.get(structure[i].second);
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column.column = column.type->createColumn();
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sample_block.insert(std::move(column));
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}
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}
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};
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/// Parsing of external table used in the tcp client.
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class ExternalTable : public BaseExternalTable
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{
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public:
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void initReadBuffer() override
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{
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if (file == "-")
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read_buffer = std::make_unique<ReadBufferFromFileDescriptor>(STDIN_FILENO);
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else
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read_buffer = std::make_unique<ReadBufferFromFile>(file);
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}
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/// Extract parameters from variables_map, which is built on the client command line
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ExternalTable(const boost::program_options::variables_map & external_options)
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{
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if (external_options.count("file"))
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file = external_options["file"].as<std::string>();
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else
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throw Exception("--file field have not been provided for external table", ErrorCodes::BAD_ARGUMENTS);
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if (external_options.count("name"))
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name = external_options["name"].as<std::string>();
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else
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throw Exception("--name field have not been provided for external table", ErrorCodes::BAD_ARGUMENTS);
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if (external_options.count("format"))
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format = external_options["format"].as<std::string>();
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else
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throw Exception("--format field have not been provided for external table", ErrorCodes::BAD_ARGUMENTS);
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if (external_options.count("structure"))
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parseStructureFromStructureField(external_options["structure"].as<std::string>());
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else if (external_options.count("types"))
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parseStructureFromTypesField(external_options["types"].as<std::string>());
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else
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throw Exception("Neither --structure nor --types have not been provided for external table", ErrorCodes::BAD_ARGUMENTS);
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}
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};
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/// Parsing of external table used when sending tables via http
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/// The `handlePart` function will be called for each table passed,
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/// so it's also necessary to call `clean` at the end of the `handlePart`.
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class ExternalTablesHandler : public Poco::Net::PartHandler, BaseExternalTable
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{
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public:
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ExternalTablesHandler(Context & context_, const Poco::Net::NameValueCollection & params_) : context(context_), params(params_) { }
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void handlePart(const Poco::Net::MessageHeader & header, std::istream & stream)
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{
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const Settings & settings = context.getSettingsRef();
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/// The buffer is initialized here, not in the virtual function initReadBuffer
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read_buffer_impl = std::make_unique<ReadBufferFromIStream>(stream);
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if (settings.http_max_multipart_form_data_size)
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read_buffer = std::make_unique<LimitReadBuffer>(
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*read_buffer_impl, settings.http_max_multipart_form_data_size,
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true, "the maximum size of multipart/form-data. This limit can be tuned by 'http_max_multipart_form_data_size' setting");
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else
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read_buffer = std::move(read_buffer_impl);
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/// Retrieve a collection of parameters from MessageHeader
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Poco::Net::NameValueCollection content;
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std::string label;
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Poco::Net::MessageHeader::splitParameters(header.get("Content-Disposition"), label, content);
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/// Get parameters
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name = content.get("name", "_data");
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format = params.get(name + "_format", "TabSeparated");
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if (params.has(name + "_structure"))
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parseStructureFromStructureField(params.get(name + "_structure"));
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else if (params.has(name + "_types"))
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parseStructureFromTypesField(params.get(name + "_types"));
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else
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throw Exception("Neither structure nor types have not been provided for external table " + name + ". Use fields " + name + "_structure or " + name + "_types to do so.", ErrorCodes::BAD_ARGUMENTS);
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ExternalTableData data = getData(context);
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/// Create table
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NamesAndTypesList columns = sample_block.getNamesAndTypesList();
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StoragePtr storage = StorageMemory::create(data.second, ColumnsDescription{columns});
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storage->startup();
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context.addExternalTable(data.second, storage);
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BlockOutputStreamPtr output = storage->write(ASTPtr(), settings);
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/// Write data
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data.first->readPrefix();
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output->writePrefix();
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while(Block block = data.first->read())
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output->write(block);
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data.first->readSuffix();
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output->writeSuffix();
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/// We are ready to receive the next file, for this we clear all the information received
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clean();
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}
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private:
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Context & context;
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const Poco::Net::NameValueCollection & params;
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std::unique_ptr<ReadBufferFromIStream> read_buffer_impl;
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};
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}
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182
dbms/src/Core/ExternalTable.cpp
Normal file
182
dbms/src/Core/ExternalTable.cpp
Normal file
@ -0,0 +1,182 @@
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#include <boost/program_options.hpp>
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#include <boost/algorithm/string.hpp>
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#include <DataStreams/AsynchronousBlockInputStream.h>
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#include <DataTypes/DataTypeFactory.h>
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#include <Interpreters/Context.h>
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#include <IO/copyData.h>
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#include <IO/ReadBufferFromIStream.h>
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#include <IO/ReadBufferFromFile.h>
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#include <IO/LimitReadBuffer.h>
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#include <Storages/StorageMemory.h>
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#include <Poco/Net/HTMLForm.h>
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#include <Poco/Net/MessageHeader.h>
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#include <Common/HTMLForm.h>
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#include <Core/ExternalTable.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int BAD_ARGUMENTS;
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}
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ExternalTableData BaseExternalTable::getData(const Context & context)
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{
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initReadBuffer();
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initSampleBlock();
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auto input = context.getInputFormat(format, *read_buffer, sample_block, DEFAULT_BLOCK_SIZE);
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return std::make_pair(std::make_shared<AsynchronousBlockInputStream>(input), name);
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}
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void BaseExternalTable::clean()
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{
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name = "";
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file = "";
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format = "";
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structure.clear();
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sample_block = Block();
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read_buffer.reset();
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}
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/// Function for debugging information output
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void BaseExternalTable::write()
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{
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std::cerr << "file " << file << std::endl;
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std::cerr << "name " << name << std::endl;
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std::cerr << "format " << format << std::endl;
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std::cerr << "structure: \n";
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for (size_t i = 0; i < structure.size(); ++i)
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std::cerr << "\t" << structure[i].first << " " << structure[i].second << std::endl;
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}
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std::vector<std::string> BaseExternalTable::split(const std::string & s, const std::string & d)
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{
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std::vector<std::string> res;
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boost::split(res, s, boost::algorithm::is_any_of(d), boost::algorithm::token_compress_on);
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return res;
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}
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void BaseExternalTable::parseStructureFromStructureField(const std::string & argument)
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{
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std::vector<std::string> vals = split(argument, " ,");
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if (vals.size() & 1)
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throw Exception("Odd number of attributes in section structure", ErrorCodes::BAD_ARGUMENTS);
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for (size_t i = 0; i < vals.size(); i += 2)
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structure.emplace_back(vals[i], vals[i + 1]);
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}
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void BaseExternalTable::parseStructureFromTypesField(const std::string & argument)
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{
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std::vector<std::string> vals = split(argument, " ,");
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for (size_t i = 0; i < vals.size(); ++i)
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structure.emplace_back("_" + toString(i + 1), vals[i]);
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}
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void BaseExternalTable::initSampleBlock()
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{
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const DataTypeFactory & data_type_factory = DataTypeFactory::instance();
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for (size_t i = 0; i < structure.size(); ++i)
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{
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ColumnWithTypeAndName column;
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column.name = structure[i].first;
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column.type = data_type_factory.get(structure[i].second);
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column.column = column.type->createColumn();
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sample_block.insert(std::move(column));
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}
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}
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void ExternalTable::initReadBuffer()
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{
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if (file == "-")
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read_buffer = std::make_unique<ReadBufferFromFileDescriptor>(STDIN_FILENO);
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else
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read_buffer = std::make_unique<ReadBufferFromFile>(file);
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}
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ExternalTable::ExternalTable(const boost::program_options::variables_map & external_options)
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{
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if (external_options.count("file"))
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file = external_options["file"].as<std::string>();
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else
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throw Exception("--file field have not been provided for external table", ErrorCodes::BAD_ARGUMENTS);
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if (external_options.count("name"))
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name = external_options["name"].as<std::string>();
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else
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throw Exception("--name field have not been provided for external table", ErrorCodes::BAD_ARGUMENTS);
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if (external_options.count("format"))
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format = external_options["format"].as<std::string>();
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else
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throw Exception("--format field have not been provided for external table", ErrorCodes::BAD_ARGUMENTS);
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if (external_options.count("structure"))
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parseStructureFromStructureField(external_options["structure"].as<std::string>());
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else if (external_options.count("types"))
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parseStructureFromTypesField(external_options["types"].as<std::string>());
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else
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throw Exception("Neither --structure nor --types have not been provided for external table", ErrorCodes::BAD_ARGUMENTS);
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}
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void ExternalTablesHandler::handlePart(const Poco::Net::MessageHeader & header, std::istream & stream)
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{
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const Settings & settings = context.getSettingsRef();
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/// The buffer is initialized here, not in the virtual function initReadBuffer
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read_buffer_impl = std::make_unique<ReadBufferFromIStream>(stream);
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if (settings.http_max_multipart_form_data_size)
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read_buffer = std::make_unique<LimitReadBuffer>(
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*read_buffer_impl, settings.http_max_multipart_form_data_size,
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true, "the maximum size of multipart/form-data. This limit can be tuned by 'http_max_multipart_form_data_size' setting");
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else
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read_buffer = std::move(read_buffer_impl);
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/// Retrieve a collection of parameters from MessageHeader
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Poco::Net::NameValueCollection content;
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std::string label;
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Poco::Net::MessageHeader::splitParameters(header.get("Content-Disposition"), label, content);
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/// Get parameters
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name = content.get("name", "_data");
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format = params.get(name + "_format", "TabSeparated");
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if (params.has(name + "_structure"))
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parseStructureFromStructureField(params.get(name + "_structure"));
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else if (params.has(name + "_types"))
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parseStructureFromTypesField(params.get(name + "_types"));
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else
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throw Exception("Neither structure nor types have not been provided for external table " + name + ". Use fields " + name + "_structure or " + name + "_types to do so.", ErrorCodes::BAD_ARGUMENTS);
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ExternalTableData data = getData(context);
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/// Create table
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NamesAndTypesList columns = sample_block.getNamesAndTypesList();
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StoragePtr storage = StorageMemory::create(data.second, ColumnsDescription{columns});
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storage->startup();
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context.addExternalTable(data.second, storage);
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BlockOutputStreamPtr output = storage->write(ASTPtr(), settings);
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/// Write data
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data.first->readPrefix();
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output->writePrefix();
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while(Block block = data.first->read())
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output->write(block);
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data.first->readSuffix();
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output->writeSuffix();
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||||
|
||||
/// We are ready to receive the next file, for this we clear all the information received
|
||||
clean();
|
||||
}
|
||||
|
||||
}
|
||||
111
dbms/src/Core/ExternalTable.h
Normal file
111
dbms/src/Core/ExternalTable.h
Normal file
@ -0,0 +1,111 @@
|
||||
#pragma once
|
||||
|
||||
#include <string>
|
||||
#include <vector>
|
||||
#include <memory>
|
||||
#include <iosfwd>
|
||||
|
||||
#include <Poco/Net/PartHandler.h>
|
||||
|
||||
#include <Core/Block.h>
|
||||
#include <Client/Connection.h>
|
||||
#include <IO/ReadBuffer.h>
|
||||
|
||||
|
||||
namespace Poco
|
||||
{
|
||||
namespace Net
|
||||
{
|
||||
class NameValueCollection;
|
||||
class MessageHeader;
|
||||
}
|
||||
}
|
||||
|
||||
namespace boost
|
||||
{
|
||||
namespace program_options
|
||||
{
|
||||
class variables_map;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
namespace DB
|
||||
{
|
||||
|
||||
class Context;
|
||||
|
||||
|
||||
/// The base class containing the basic information about external table and
|
||||
/// basic functions for extracting this information from text fields.
|
||||
class BaseExternalTable
|
||||
{
|
||||
public:
|
||||
std::string file; /// File with data or '-' if stdin
|
||||
std::string name; /// The name of the table
|
||||
std::string format; /// Name of the data storage format
|
||||
|
||||
/// Description of the table structure: (column name, data type name)
|
||||
std::vector<std::pair<std::string, std::string>> structure;
|
||||
|
||||
std::unique_ptr<ReadBuffer> read_buffer;
|
||||
Block sample_block;
|
||||
|
||||
virtual ~BaseExternalTable() {}
|
||||
|
||||
/// Initialize read_buffer, depending on the data source. By default, does nothing.
|
||||
virtual void initReadBuffer() {}
|
||||
|
||||
/// Get the table data - a pair (a stream with the contents of the table, the name of the table)
|
||||
ExternalTableData getData(const Context & context);
|
||||
|
||||
protected:
|
||||
/// Clear all accumulated information
|
||||
void clean();
|
||||
|
||||
/// Function for debugging information output
|
||||
void write();
|
||||
|
||||
static std::vector<std::string> split(const std::string & s, const std::string & d);
|
||||
|
||||
/// Construct the `structure` vector from the text field `structure`
|
||||
virtual void parseStructureFromStructureField(const std::string & argument);
|
||||
|
||||
/// Construct the `structure` vector from the text field `types`
|
||||
virtual void parseStructureFromTypesField(const std::string & argument);
|
||||
|
||||
private:
|
||||
/// Initialize sample_block according to the structure of the table stored in the `structure`
|
||||
void initSampleBlock();
|
||||
};
|
||||
|
||||
|
||||
/// Parsing of external table used in the tcp client.
|
||||
class ExternalTable : public BaseExternalTable
|
||||
{
|
||||
public:
|
||||
void initReadBuffer() override;
|
||||
|
||||
/// Extract parameters from variables_map, which is built on the client command line
|
||||
ExternalTable(const boost::program_options::variables_map & external_options);
|
||||
};
|
||||
|
||||
|
||||
/// Parsing of external table used when sending tables via http
|
||||
/// The `handlePart` function will be called for each table passed,
|
||||
/// so it's also necessary to call `clean` at the end of the `handlePart`.
|
||||
class ExternalTablesHandler : public Poco::Net::PartHandler, BaseExternalTable
|
||||
{
|
||||
public:
|
||||
ExternalTablesHandler(Context & context_, const Poco::Net::NameValueCollection & params_) : context(context_), params(params_) {}
|
||||
|
||||
void handlePart(const Poco::Net::MessageHeader & header, std::istream & stream);
|
||||
|
||||
private:
|
||||
Context & context;
|
||||
const Poco::Net::NameValueCollection & params;
|
||||
std::unique_ptr<ReadBuffer> read_buffer_impl;
|
||||
};
|
||||
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user