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100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
#pragma once
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#include <string>
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#include <DataTypes/IDataType.h>
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#include <Processors/Sources/ShellCommandSource.h>
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#include <Interpreters/IExternalLoadable.h>
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namespace DB
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{
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enum class UserDefinedExecutableFunctionType
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{
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executable,
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executable_pool
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};
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struct UserDefinedExecutableFunctionConfiguration
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{
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UserDefinedExecutableFunctionType type = UserDefinedExecutableFunctionType::executable;
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std::string name;
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std::string script_path;
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std::string format;
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std::vector<DataTypePtr> argument_types;
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DataTypePtr result_type;
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/// Pool settings
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size_t pool_size = 0;
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size_t command_termination_timeout = 0;
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size_t max_command_execution_time = 0;
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/// Send number_of_rows\n before sending chunk to process
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bool send_chunk_header = false;
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};
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class UserDefinedExecutableFunction final : public IExternalLoadable
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{
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public:
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UserDefinedExecutableFunction(
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const UserDefinedExecutableFunctionConfiguration & configuration_,
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const ExternalLoadableLifetime & lifetime_,
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std::shared_ptr<ProcessPool> process_pool_ = nullptr);
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const ExternalLoadableLifetime & getLifetime() const override
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{
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return lifetime;
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}
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const std::string & getLoadableName() const override
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{
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return configuration.name;
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}
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bool supportUpdates() const override
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{
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return true;
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}
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bool isModified() const override
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{
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return true;
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}
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std::shared_ptr<const IExternalLoadable> clone() const override
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{
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return std::make_shared<UserDefinedExecutableFunction>(configuration, lifetime, process_pool);
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}
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const UserDefinedExecutableFunctionConfiguration & getConfiguration() const
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{
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return configuration;
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}
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std::shared_ptr<ProcessPool> getProcessPool() const
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{
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return process_pool;
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}
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std::shared_ptr<UserDefinedExecutableFunction> shared_from_this()
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{
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return std::static_pointer_cast<UserDefinedExecutableFunction>(IExternalLoadable::shared_from_this());
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}
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std::shared_ptr<const UserDefinedExecutableFunction> shared_from_this() const
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{
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return std::static_pointer_cast<const UserDefinedExecutableFunction>(IExternalLoadable::shared_from_this());
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}
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private:
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UserDefinedExecutableFunction(const UserDefinedExecutableFunctionConfiguration & configuration_,
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std::shared_ptr<ProcessPool> process_pool_,
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const ExternalLoadableLifetime & lifetime_);
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UserDefinedExecutableFunctionConfiguration configuration;
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ExternalLoadableLifetime lifetime;
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std::shared_ptr<ProcessPool> process_pool;
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};
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}
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