warregistrykey.cpp

来自「ftpserver very good sample」· C++ 代码 · 共 152 行

#include "StdAfx.h"
#include "WarRegistryKey.h"   // class implemented


/////////////////////////////// PUBLIC ///////////////////////////////////////

//============================= LIFECYCLE ====================================

WarRegistryKey::WarRegistryKey(name_ccstr_t name, 
                               text_ccstr_t comment) :
WarRegistryBase(name, comment)
{
}// WarRegistryKey

WarRegistryKey::WarRegistryKey(const WarRegistryKey& from) :
WarRegistryBase(NULL, NULL)
{
    operator = (from);
}// WarRegistryKey

WarRegistryKey::~WarRegistryKey()
{
}// ~WarRegistryKey


//============================= OPERATORS ====================================

WarRegistryKey& 
WarRegistryKey::operator = (const WarRegistryKey& from)
{
    WarRegistryBase::operator = (from);

    mChildren = from.mChildren;

    return *this;
}// =

WarRegistryKey::key_ptr_t 
WarRegistryKey::Open(name_ccstr_t name) throw(WarException)
{
    key_ptr_t key = new WarRegistryKey(name, NULL);
    WarRegistryKey::key_set_t::iterator P = mChildren.find(key);
    if (P == mChildren.end())
        WarThrow(WarError(WAR_ERR_OBJECT_NOT_FOUND), NULL);

    return *P;
}

WarRegistryKey::key_ptr_t 
WarRegistryKey::Create(name_ccstr_t name) throw(WarException)
{
    if (IsKey(name) || IsValue(name))
        WarThrow(WarError(WAR_ERR_OBJECT_EXIST), NULL);

    key_ptr_t key = new WarRegistryKey(name, NULL);
    mChildren.insert(key);
    return key;
}


//============================= OPERATIONS ===================================

void WarRegistryKey::SetValue(name_ccstr_t name, name_ccstr_t value) 
throw(WarException)
{
    value_ptr_t key = new WarRegistryValue(name, NULL, NULL);
    WarRegistryKey::value_set_t::iterator P = mValues.find(key);
    if (P == mValues.end())
    {
        // Insert new
        key->SetValue(value);
        std::pair<WarRegistryKey::value_set_t::const_iterator, bool> status 
            = mValues.insert(key);
        if (!status.second)
            WarThrow(WarError(WAR_ERR_UNEXCPECTED_REPLY_CODE), "std::insert()");
    }
    else
    {
        // Update current
        (*P)->SetValue(value);
    }
}

//============================= CALLBACK   ===================================
//============================= ACCESS     ===================================

const WarRegistryValue::value_t& 
WarRegistryKey::GetValue(name_ccstr_t name)
const throw(WarException)
{
    return (*LookupValue(name))->GetValue();
}

//============================= INQUIRY    ===================================

bool WarRegistryKey::IsValue(name_ccstr_t name) const
{
    try
    {
        LookupValue(name);
    }
    catch(WarException)
    {
        return false;
    }

    return true;
}

bool WarRegistryKey::IsKey(name_ccstr_t name) const
{
    try
    {
        LookupKey(name);
    }
    catch(WarException)
    {
        return false;
    }

    return true;
}

/////////////////////////////// PROTECTED  ///////////////////////////////////

WarRegistryKey::key_set_t::const_iterator 
WarRegistryKey::LookupKey(name_ccstr_t name)
const throw(WarException)
{
    key_ptr_t key = new WarRegistryKey(name, NULL);
    WarRegistryKey::key_set_t::const_iterator P = mChildren.find(key);
    if (P == mChildren.end())
        WarThrow(WarError(WAR_ERR_OBJECT_NOT_FOUND), NULL);

    return P;
}

WarRegistryKey::value_set_t::const_iterator 
WarRegistryKey::LookupValue(name_ccstr_t name)
const throw(WarException)
{
    value_ptr_t key = new WarRegistryValue(name, NULL, NULL);
    WarRegistryKey::value_set_t::const_iterator P = mValues.find(key);
    if (P == mValues.end())
        WarThrow(WarError(WAR_ERR_OBJECT_NOT_FOUND), NULL);

    return P;
}

/////////////////////////////// PRIVATE    ///////////////////////////////////