RandomStringFactory.h

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#pragma once
 
#include <ext/random>
 
#include <alib/set>
#include <alib/vector>
 
#include <exception/CommonException.h>
 
#include <string/LinearString.h>
 
namespace string {
 
namespace generate {
 
class RandomStringFactory {
public:
    static string::LinearString < std::string > generateLinearString ( size_t size, size_t alphabetSize, bool randomizedAlphabet, bool integerSymbols );
 
    static string::LinearString < std::string > generateLinearString ( size_t size, size_t alphabetSize, bool randomizedAlphabet );
 
    template < class SymbolType >
    static string::LinearString < SymbolType > generateLinearString ( size_t size, ext::set < SymbolType > alphabet );
 
    template < class SymbolType >
    static string::LinearString < SymbolType > generateLinearString ( size_t size, ext::vector < SymbolType > alphabet );
};
 
template < class SymbolType >
string::LinearString < SymbolType > RandomStringFactory::generateLinearString ( size_t size, ext::set < SymbolType > alphabet ) {
    return generateLinearString ( size, ext::vector < SymbolType > ( alphabet.begin ( ), alphabet.end ( ) ) );
}
 
template < class SymbolType >
string::LinearString < SymbolType > RandomStringFactory::generateLinearString ( size_t size, ext::vector < SymbolType > alphabet ) {
 
    if ( alphabet.empty ( ) )
        throw exception::CommonException ( "Alphabet size must be greater than 0." );
 
    ext::vector < SymbolType > elems;
 
    for ( size_t i = 0; i < size; i++ )
        elems.push_back ( alphabet [ ext::random_devices::semirandom ( ) % alphabet.size ( ) ] );
 
    return string::LinearString < SymbolType > ( elems );
}
 
} /* namespace generate */
 
} /* namespace string */