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52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
#pragma once
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#include <Core/Types.h>
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#include <Core/Names.h>
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#include <map>
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namespace Poco
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{
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namespace Util
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{
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class AbstractConfiguration;
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}
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}
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namespace DB
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{
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/** Apply substitutions from the macros in config to the string.
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*/
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class Macros
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{
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public:
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Macros();
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Macros(const Poco::Util::AbstractConfiguration & config, const String & key);
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/** Replace the substring of the form {macro_name} with the value for macro_name, obtained from the config file.
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* If {database} and {table} macros aren`t defined explicitly, expand them as database_name and table_name respectively.
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* level - the level of recursion.
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*/
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String expand(const String & s, size_t level = 0, const String & database_name = "", const String & table_name = "") const;
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String expand(const String & s, const String & database_name, const String & table_name) const;
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/** Apply expand for the list.
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*/
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Names expand(const Names & source_names, size_t level = 0) const;
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using MacroMap = std::map<String, String>;
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const MacroMap getMacroMap() const { return macros; }
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private:
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MacroMap macros;
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};
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}
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