namedtuple.h

很好用的网络封装库,不熟悉网络编程的人也可以使用。使用风格良好的标准c++编写。

//
// NamedTuple.h
//
// $Id: //poco/1.3/Foundation/include/Poco/NamedTuple.h#2 $
//
// Library: Foundation
// Package: Core
// Module:  NamedTuple
//
// Definition of the NamedTuple class.
//
// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#ifndef Foundation_NamedTuple_INCLUDED
#define Foundation_NamedTuple_INCLUDED


#include "Poco/Foundation.h"
#include "Poco/Tuple.h"
#include "Poco/TypeList.h"
#include "Poco/DynamicAny.h"
#include "Poco/SharedPtr.h"
#include "Poco/Format.h"


namespace Poco {


template<class T0, 
    class T1 = NullTypeList,
    class T2 = NullTypeList,
    class T3 = NullTypeList,
    class T4 = NullTypeList,
    class T5 = NullTypeList,
    class T6 = NullTypeList,
    class T7 = NullTypeList, 
    class T8 = NullTypeList,
    class T9 = NullTypeList,
    class T10 = NullTypeList,
    class T11 = NullTypeList,
    class T12 = NullTypeList,
    class T13 = NullTypeList,
    class T14 = NullTypeList,
    class T15 = NullTypeList,
    class T16 = NullTypeList,
    class T17 = NullTypeList,
    class T18 = NullTypeList,
    class T19 = NullTypeList>
struct NamedTuple: public Tuple<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19>
{
	typedef Tuple<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19> TupleType;
	typedef typename Tuple<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19>::Type Type;
    typedef std::vector<std::string> NameVec; 
    typedef SharedPtr<NameVec> NameVecPtr; 

    NamedTuple(): _pNames(0)
    {
        init();
    }

    NamedTuple(const NameVecPtr& rNames)
    {
        if (rNames->size() != TupleType::length)
            throw InvalidArgumentException("Wrong names vector length."); 

        _pNames = rNames;
    }

    NamedTuple(typename TypeWrapper<T0>::CONSTTYPE& t0,
        typename TypeWrapper<T1>::CONSTTYPE& t1 = POCO_TYPEWRAPPER_DEFAULTVALUE(T1), 
        typename TypeWrapper<T2>::CONSTTYPE& t2 = POCO_TYPEWRAPPER_DEFAULTVALUE(T2), 
        typename TypeWrapper<T3>::CONSTTYPE& t3 = POCO_TYPEWRAPPER_DEFAULTVALUE(T3),
        typename TypeWrapper<T4>::CONSTTYPE& t4 = POCO_TYPEWRAPPER_DEFAULTVALUE(T4),
        typename TypeWrapper<T5>::CONSTTYPE& t5 = POCO_TYPEWRAPPER_DEFAULTVALUE(T5), 
        typename TypeWrapper<T6>::CONSTTYPE& t6 = POCO_TYPEWRAPPER_DEFAULTVALUE(T6),
        typename TypeWrapper<T7>::CONSTTYPE& t7 = POCO_TYPEWRAPPER_DEFAULTVALUE(T7),
        typename TypeWrapper<T8>::CONSTTYPE& t8 = POCO_TYPEWRAPPER_DEFAULTVALUE(T8), 
        typename TypeWrapper<T9>::CONSTTYPE& t9 = POCO_TYPEWRAPPER_DEFAULTVALUE(T9), 
        typename TypeWrapper<T10>::CONSTTYPE& t10 = POCO_TYPEWRAPPER_DEFAULTVALUE(T10), 
        typename TypeWrapper<T11>::CONSTTYPE& t11 = POCO_TYPEWRAPPER_DEFAULTVALUE(T11), 
        typename TypeWrapper<T12>::CONSTTYPE& t12 = POCO_TYPEWRAPPER_DEFAULTVALUE(T12), 
        typename TypeWrapper<T13>::CONSTTYPE& t13 = POCO_TYPEWRAPPER_DEFAULTVALUE(T13), 
        typename TypeWrapper<T14>::CONSTTYPE& t14 = POCO_TYPEWRAPPER_DEFAULTVALUE(T14), 
        typename TypeWrapper<T15>::CONSTTYPE& t15 = POCO_TYPEWRAPPER_DEFAULTVALUE(T15), 
        typename TypeWrapper<T16>::CONSTTYPE& t16 = POCO_TYPEWRAPPER_DEFAULTVALUE(T16), 
        typename TypeWrapper<T17>::CONSTTYPE& t17 = POCO_TYPEWRAPPER_DEFAULTVALUE(T17), 
        typename TypeWrapper<T18>::CONSTTYPE& t18 = POCO_TYPEWRAPPER_DEFAULTVALUE(T18), 
        typename TypeWrapper<T19>::CONSTTYPE& t19 = POCO_TYPEWRAPPER_DEFAULTVALUE(T19)): 
		TupleType(t0,t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19), 
		_pNames(0)
    {
        init();
    }

    NamedTuple(const NameVecPtr& rNames, 
        typename TypeWrapper<T0>::CONSTTYPE& t0,
        typename TypeWrapper<T1>::CONSTTYPE& t1 = POCO_TYPEWRAPPER_DEFAULTVALUE(T1),
        typename TypeWrapper<T2>::CONSTTYPE& t2 = POCO_TYPEWRAPPER_DEFAULTVALUE(T2), 
        typename TypeWrapper<T3>::CONSTTYPE& t3 = POCO_TYPEWRAPPER_DEFAULTVALUE(T3),
        typename TypeWrapper<T4>::CONSTTYPE& t4 = POCO_TYPEWRAPPER_DEFAULTVALUE(T4),
        typename TypeWrapper<T5>::CONSTTYPE& t5 = POCO_TYPEWRAPPER_DEFAULTVALUE(T5), 
        typename TypeWrapper<T6>::CONSTTYPE& t6 = POCO_TYPEWRAPPER_DEFAULTVALUE(T6),
        typename TypeWrapper<T7>::CONSTTYPE& t7 = POCO_TYPEWRAPPER_DEFAULTVALUE(T7),
        typename TypeWrapper<T8>::CONSTTYPE& t8 = POCO_TYPEWRAPPER_DEFAULTVALUE(T8), 
        typename TypeWrapper<T9>::CONSTTYPE& t9 = POCO_TYPEWRAPPER_DEFAULTVALUE(T9), 
        typename TypeWrapper<T10>::CONSTTYPE& t10 = POCO_TYPEWRAPPER_DEFAULTVALUE(T10), 
        typename TypeWrapper<T11>::CONSTTYPE& t11 = POCO_TYPEWRAPPER_DEFAULTVALUE(T11), 
        typename TypeWrapper<T12>::CONSTTYPE& t12 = POCO_TYPEWRAPPER_DEFAULTVALUE(T12), 
        typename TypeWrapper<T13>::CONSTTYPE& t13 = POCO_TYPEWRAPPER_DEFAULTVALUE(T13), 
        typename TypeWrapper<T14>::CONSTTYPE& t14 = POCO_TYPEWRAPPER_DEFAULTVALUE(T14), 
        typename TypeWrapper<T15>::CONSTTYPE& t15 = POCO_TYPEWRAPPER_DEFAULTVALUE(T15), 
        typename TypeWrapper<T16>::CONSTTYPE& t16 = POCO_TYPEWRAPPER_DEFAULTVALUE(T16), 
        typename TypeWrapper<T17>::CONSTTYPE& t17 = POCO_TYPEWRAPPER_DEFAULTVALUE(T17), 
        typename TypeWrapper<T18>::CONSTTYPE& t18 = POCO_TYPEWRAPPER_DEFAULTVALUE(T18), 
        typename TypeWrapper<T19>::CONSTTYPE& t19 = POCO_TYPEWRAPPER_DEFAULTVALUE(T19)): 
		TupleType(t0,t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19)
    {
		if (rNames->size() != TupleType::length)
            throw InvalidArgumentException("Wrong names vector length."); 

        _pNames = rNames;
    }

    NamedTuple(const std::string& n0,
        typename TypeWrapper<T0>::CONSTTYPE& t0, 
        const std::string& n1 = "B",
        typename TypeWrapper<T1>::CONSTTYPE& t1 = POCO_TYPEWRAPPER_DEFAULTVALUE(T1),
        const std::string& n2 = "C",
        typename TypeWrapper<T2>::CONSTTYPE& t2 = POCO_TYPEWRAPPER_DEFAULTVALUE(T2), 
        const std::string& n3 = "D",
        typename TypeWrapper<T3>::CONSTTYPE& t3 = POCO_TYPEWRAPPER_DEFAULTVALUE(T3),
        const std::string& n4 = "E",
        typename TypeWrapper<T4>::CONSTTYPE& t4 = POCO_TYPEWRAPPER_DEFAULTVALUE(T4), 
        const std::string& n5 = "F",
        typename TypeWrapper<T5>::CONSTTYPE& t5 = POCO_TYPEWRAPPER_DEFAULTVALUE(T5),
        const std::string& n6 = "G",
        typename TypeWrapper<T6>::CONSTTYPE& t6 = POCO_TYPEWRAPPER_DEFAULTVALUE(T6), 
        const std::string& n7 = "H",
        typename TypeWrapper<T7>::CONSTTYPE& t7 = POCO_TYPEWRAPPER_DEFAULTVALUE(T7),
        const std::string& n8 = "I",
        typename TypeWrapper<T8>::CONSTTYPE& t8 = POCO_TYPEWRAPPER_DEFAULTVALUE(T8), 
        const std::string& n9 = "J",
        typename TypeWrapper<T9>::CONSTTYPE& t9 = POCO_TYPEWRAPPER_DEFAULTVALUE(T9),
        const std::string& n10 = "K",
        typename TypeWrapper<T10>::CONSTTYPE& t10 = POCO_TYPEWRAPPER_DEFAULTVALUE(T10),
        const std::string& n11 = "L",
        typename TypeWrapper<T11>::CONSTTYPE& t11 = POCO_TYPEWRAPPER_DEFAULTVALUE(T11),
        const std::string& n12 = "M",
        typename TypeWrapper<T12>::CONSTTYPE& t12 = POCO_TYPEWRAPPER_DEFAULTVALUE(T12),
        const std::string& n13 = "N",
        typename TypeWrapper<T13>::CONSTTYPE& t13 = POCO_TYPEWRAPPER_DEFAULTVALUE(T13),
        const std::string& n14 = "O",
        typename TypeWrapper<T14>::CONSTTYPE& t14 = POCO_TYPEWRAPPER_DEFAULTVALUE(T14),
        const std::string& n15 = "P",
        typename TypeWrapper<T15>::CONSTTYPE& t15 = POCO_TYPEWRAPPER_DEFAULTVALUE(T15),
        const std::string& n16 = "Q",
        typename TypeWrapper<T16>::CONSTTYPE& t16 = POCO_TYPEWRAPPER_DEFAULTVALUE(T16),
        const std::string& n17 = "R",
        typename TypeWrapper<T17>::CONSTTYPE& t17 = POCO_TYPEWRAPPER_DEFAULTVALUE(T17),
        const std::string& n18 = "S",
        typename TypeWrapper<T18>::CONSTTYPE& t18 = POCO_TYPEWRAPPER_DEFAULTVALUE(T18),
		const std::string& n19 = "T",
        typename TypeWrapper<T19>::CONSTTYPE& t19 = POCO_TYPEWRAPPER_DEFAULTVALUE(T19)): 
		TupleType(t0,t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19), 
		_pNames(0) 
    {
        init(n0,n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13,n14,n15,n16,n17,n18,n19);
    }

    DynamicAny get(const std::string& name) const
    {
        NameVec::const_iterator it = _pNames->begin(); 
        NameVec::const_iterator itEnd = _pNames->end();

        for(std::size_t counter = 0; it != itEnd; ++it, ++counter)
        {
            if (name == *it)
            {
                switch (counter)
                { 
                    case 0: return TupleType::template get<0>();
                    case 1: return TupleType::template get<1>();
                    case 2: return TupleType::template get<2>();
                    case 3: return TupleType::template get<3>(); 
                    case 4: return TupleType::template get<4>();
                    case 5: return TupleType::template get<5>();
                    case 6: return TupleType::template get<6>();
                    case 7: return TupleType::template get<7>(); 
                    case 8: return TupleType::template get<8>();
                    case 9: return TupleType::template get<9>();
					case 10: return TupleType::template get<10>();
					case 11: return TupleType::template get<11>();
					case 12: return TupleType::template get<12>();
					case 13: return TupleType::template get<13>();
					case 14: return TupleType::template get<14>();
					case 15: return TupleType::template get<15>();
					case 16: return TupleType::template get<16>();
					case 17: return TupleType::template get<17>();
					case 18: return TupleType::template get<18>();
					case 19: return TupleType::template get<19>();
                    default: throw RangeException();
                }
            }
        } 

        throw NotFoundException("Name not found: " + name);
    }

    DynamicAny operator [] (const std::string& name) const
    {
        return get(name);
    }

    template<int N>
    typename TypeGetter<N, Type>::ConstHeadType& get() const 
    {
        return TupleType::template get<N>();
    }

    template<int N>
    typename TypeGetter<N, Type>::HeadType& get()
    {
        return TupleType::template get<N>();
    }

    template<int N>
    void set(typename TypeGetter<N, Type>::ConstHeadType& val)
    {
        return TupleType::template set<N>(val);
    }

    const NameVecPtr& names()
    {
        return _pNames; 
    }

	void setName(std::size_t index, const std::string& name)
	{
		if (index >= _pNames->size())
			throw InvalidArgumentException(format("Invalid index: %z", index));

		(*_pNames)[index] = name;
	}

	const std::string& getName(std::size_t index)
	{
		if (index >= _pNames->size())
			throw InvalidArgumentException(format("Invalid index: %z", index));

		return (*_pNames)[index];
	}

    bool operator == (const NamedTuple& other) const
    {
        return TupleType(*this) == TupleType(other) && _pNames == other._pNames;
    }

    bool operator != (const NamedTuple& other) const 
    {
        return !(*this == other);
    }

    bool operator < (const NamedTuple& other) const
    {
        TupleType th(*this);
        TupleType oth(other); 

        return (th < oth && _pNames == other._pNames) || 
            (th == oth && _pNames < other._pNames) ||
            (th < oth && _pNames < other._pNames);
    }

private:
    void init(const std::string& n0 = "A",
        const std::string& n1 = "B",
        const std::string& n2 = "C",
        const std::string& n3 = "D",
        const std::string& n4 = "E",
        const std::string& n5 = "F", 
        const std::string& n6 = "G",
        const std::string& n7 = "H",
        const std::string& n8 = "I",
        const std::string& n9 = "J",
        const std::string& n10 = "K",
        const std::string& n11 = "L",
        const std::string& n12 = "M",
        const std::string& n13 = "N",
        const std::string& n14 = "O",
        const std::string& n15 = "P",