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#pragma once
#include <string>
#include <base/types.h>
namespace DB
{
/**
* The FileRenamer class provides functionality for renaming files based on given pattern with placeholders
* The supported placeholders are:
* %a - Full original file name ("sample.csv")
* %f - Original filename without extension ("sample")
* %e - Original file extension with dot (".csv")
* %t - Timestamp (in microseconds)
* %% - Percentage sign ("%")
*
* Example:
* Pattern - "processed_%f_%t%e"
* Original filename - "sample.csv"
* New filename - "processed_sample_1683405960646224.csv"
*/
class FileRenamer
{
public:
FileRenamer();
FileRenamer(const String & renaming_rule);
String generateNewFilename(const String & filename) const;
bool isEmpty() const;
static bool validateRenamingRule(const String & rule, bool throw_on_error = false);
private:
String rule;
};
} // DB
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