icinga2/base/variant.cpp

161 lines
3.8 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "i2-base.h"
using namespace icinga;
/**
* Converts the variant's value to a new type.
*
* @param newType The new type of the variant.
*/
void Variant::Convert(VariantType newType) const
{
if (newType == m_Type)
return;
if (m_Type == VariantString && newType == VariantInteger) {
m_IntegerValue = strtol(m_StringValue.c_str(), NULL, 10);
m_Type = VariantInteger;
return;
}
if (m_Type == VariantInteger && newType == VariantString) {
stringstream sbuf;
sbuf << m_IntegerValue;
m_StringValue = sbuf.str();
m_Type = VariantString;
return;
}
// TODO: convert variant data
throw runtime_error("Invalid variant conversion.");
}
/**
* Retrieves the variant value's type.
*
* @returns The variant's type.
*/
VariantType Variant::GetType(void) const
{
return m_Type;
}
/**
* Retrieves the variant's value as an integer.
*
* @returns The variant's value as an integer.
*/
long Variant::GetInteger(void) const
{
Convert(VariantInteger);
return m_IntegerValue;
}
/**
* Retrieves the variant's value as a bool.
*
* @returns The variant's value as a bool.
*/
bool Variant::GetBool(void) const
{
Convert(VariantInteger);
return (m_IntegerValue != 0);
}
/**
* Retrieves the variant's value as a string.
*
* @returns The variant's value as a string.
*/
string Variant::GetString(void) const
{
Convert(VariantString);
return m_StringValue;
}
/**
* Retrieves the variant's value as an object.
*
* @returns The variant's value as an object.
*/
Object::Ptr Variant::GetObject(void) const
{
Convert(VariantObject);
return m_ObjectValue;
}
/**
* Checks whether the variant is empty.
*
* @returns true if the variant is empty, false otherwise.
*/
bool Variant::IsEmpty(void) const
{
return (m_Type == VariantEmpty);
}
/**
* Retrieves the variant's value as an integer.
*
* @returns The variant's value as an integer.
*/
Variant::operator long(void) const
{
return GetInteger();
}
/**
* Retrieves the variant's value as a bool.
*
* @returns The variant's value as a bool.
*/
Variant::operator bool(void) const
{
return GetBool();
}
/**
* Retrieves the variant's value as a string.
*
* @returns The variant's value as a string.
*/
Variant::operator string(void) const
{
return GetString();
}
/**
* Retrieves the variant's value as an object.
*
* @returns The variant's value as an object.
*/
Variant::operator Object::Ptr(void) const
{
return GetObject();
}