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CdbStringUtils.hh

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#ifndef CDB_STRING_UTILS_HH
#define CDB_STRING_UTILS_HH

#include <CdbBase/CdbCommon.hh>

#include <string>
#include <sstream>

/// A utility class with a pack of string manipulation operations

class CdbStringUtils {

public:

  /// Translate an object into a string
  /**
    * This method is using the String I/O facility, therefore a proper implementation
    * of the "<<" operator is expected for an input object's class.
    *
    * RETURN STATUS NOTES:
    *
    *   There is no return status for this method. Problems are supposed to be handled
    *   (in case of missing operator) at a compile time, or resulted as an empty string
    *   at the run time.
    */
    template< class T >
    static
    std::string toString( const T& theObject )
    {
        std::ostringstream result;
        result << theObject;
        return result.str( );
    }

  /// Translate a string into an object
  /**
    * This method is using the String I/O facility, therefore a proper implementation
    * of the ">>" operator is expected for an output object's class.
    *
    * The object's class is expected to maintain the public "value" interface, meaning that
    * it should have:
    *
    *   struct T {
    *     T();
    *     T(const T&);
    *     T& operator=(const T&);
    *     ~T();
    *   };
    *
    * RETURN STATUS NOTES:
    *
    *   There is no return status for this method. Problems are supposed to be handled 
    *   (in case of missing operator) at a compile time, or resulted as non-valid object
    *   returned at the run time.
    */
    template< class T >
    static
    T fromString( const std::string& theString )
    {
        T result;
        std::istringstream str( theString );
        str >> result;
        return result;
    }
};

#endif  /* CDB_STRING_UTILS_HH */

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