Uuid.hpp

 
//
//  Copyright Phoenix Contact GmbH & Co. KG
//
#pragma once
#include "Arp/Base/Core/Arp.hpp"
#include "Arp/Base/Core/PimplPtr.hxx"
 
namespace Arp::Base::Commons::Configuration
{
 
class ARP_EXPORT Uuid
{
public: // Impl forward declaration
    class Impl;
 
public: // construction
    Uuid(void);
    // canonical construction/destruction/assignment
    Uuid(const Uuid& arg);
    Uuid(Uuid&& arg)noexcept;
    Uuid& operator=(const Uuid& arg);
    Uuid& operator=(Uuid&& arg)noexcept;
    ~Uuid(void);
 
public: // compare operators
    ARP_EXPORT friend bool operator==(const Uuid& lhs, const Uuid& rhs)noexcept;
    ARP_EXPORT friend bool operator!=(const Uuid& lhs, const Uuid& rhs)noexcept;
    ARP_EXPORT friend bool operator<(const Uuid& lhs, const Uuid& rhs)noexcept;
    ARP_EXPORT friend bool operator>(const Uuid& lhs, const Uuid& rhs)noexcept;
    ARP_EXPORT friend bool operator<=(const Uuid& lhs, const Uuid& rhs)noexcept;
    ARP_EXPORT friend bool operator>=(const Uuid& lhs, const Uuid& rhs)noexcept;
 
public: // stream operators
    ARP_EXPORT friend std::ostream& operator<<(std::ostream& os, const Uuid& id);
    ARP_EXPORT friend std::istream& operator>>(std::istream& is, Uuid& id);
 
public: // static operations
    static Uuid GetEmpty(void);
    static Uuid CreateNew(void);
    static Uuid Create(const byte* pData);
    static Uuid CreateFromLittleEndian(const byte* pData);
    static Uuid Parse(const String& input);
    static bool TryParse(const String& input, Uuid& result);
 
public: // setter/getter operations
    bool    IsEmpty(void)const;
 
public: // operations
    String  ToString(void)const;
    size_t  GetHashValue(void)const;
    void    Clear(void);
    void    CopyTo(byte* pData)const;
    void    CopyLittleEndianTo(byte* pData)const;
 
public: // internal operations
    Impl&       GetImpl(void);
    const Impl& GetImpl(void)const;
 
private: // Impl usings
    using Pimpl = PimplPtr<Impl, true>;
 
private: // Impl fields
    Pimpl   pimpl;
};
 
} // end of namespace Arp::Base::Commons::Configuration
 
// template specialization of Uuid formatter
template<> struct fmt::formatter<Arp::Base::Commons::Configuration::Uuid> : public fmt::ostream_formatter {};
 
// standard template specializations of class Uuid
namespace std
{
 
template<>
struct hash<Arp::Base::Commons::Configuration::Uuid>
{
public: // usings
    using argument_type = Arp::Base::Commons::Configuration::Uuid;  
    using result_type   = size_t;                                   
 
public: // operators
    result_type operator()(const argument_type& arg)const
    {
        return arg.GetHashValue();
    }
};
 
} // end of namespace std