icinga2/lib/base/value-operators.cpp

604 lines
16 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 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 "base/value.hpp"
#include "base/array.hpp"
#include "base/dictionary.hpp"
#include "base/utility.hpp"
#include "base/objectlock.hpp"
#include <boost/foreach.hpp>
#include <boost/lexical_cast.hpp>
using namespace icinga;
Value::operator double(void) const
{
const double *value = boost::get<double>(&m_Value);
if (value)
return *value;
if (IsEmpty())
return 0;
return boost::lexical_cast<double>(m_Value);
}
Value::operator String(void) const
{
Object *object;
double integral, fractional;
switch (GetType()) {
case ValueEmpty:
return String();
case ValueNumber:
fractional = std::modf(boost::get<double>(m_Value), &integral);
if (fractional != 0)
return boost::lexical_cast<std::string>(m_Value);
else
return boost::lexical_cast<std::string>((long)integral);
case ValueString:
return boost::get<String>(m_Value);
case ValueObject:
object = boost::get<Object::Ptr>(m_Value).get();
return "Object of type '" + Utility::GetTypeName(typeid(*object)) + "'";
default:
BOOST_THROW_EXCEPTION(std::runtime_error("Unknown value type."));
}
}
std::ostream& icinga::operator<<(std::ostream& stream, const Value& value)
{
stream << static_cast<String>(value);
return stream;
}
std::istream& icinga::operator>>(std::istream& stream, Value& value)
{
String tstr;
stream >> tstr;
value = tstr;
return stream;
}
bool Value::operator==(bool rhs) const
{
return *this == Value(rhs);
}
bool Value::operator!=(bool rhs) const
{
return !(*this == rhs);
}
bool Value::operator==(int rhs) const
{
return *this == Value(rhs);
}
bool Value::operator!=(int rhs) const
{
return !(*this == rhs);
}
bool Value::operator==(double rhs) const
{
return *this == Value(rhs);
}
bool Value::operator!=(double rhs) const
{
return !(*this == rhs);
}
bool Value::operator==(const char *rhs) const
{
return static_cast<String>(*this) == rhs;
}
bool Value::operator!=(const char *rhs) const
{
return !(*this == rhs);
}
bool Value::operator==(const String& rhs) const
{
return static_cast<String>(*this) == rhs;
}
bool Value::operator!=(const String& rhs) const
{
return !(*this == rhs);
}
bool Value::operator==(const Value& rhs) const
{
if (IsNumber() && rhs.IsNumber())
return Get<double>() == rhs.Get<double>();
else if ((IsNumber() || IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(IsEmpty() && rhs.IsEmpty()))
return static_cast<double>(*this) == static_cast<double>(rhs);
if (IsString() && rhs.IsString())
return Get<String>() == rhs.Get<String>();
else if ((IsString() || IsEmpty()) && (rhs.IsString() || rhs.IsEmpty()) && !(IsEmpty() && rhs.IsEmpty()))
return static_cast<String>(*this) == static_cast<String>(rhs);
if (IsEmpty() != rhs.IsEmpty())
return false;
if (IsEmpty())
return true;
if (IsObject() != rhs.IsObject())
return false;
if (IsObject()) {
if (IsObjectType<Array>() && rhs.IsObjectType<Array>()) {
Array::Ptr arr1 = *this;
Array::Ptr arr2 = rhs;
if (arr1 == arr2)
return true;
if (arr1->GetLength() != arr2->GetLength())
return false;
for (Array::SizeType i = 0; i < arr1->GetLength(); i++) {
if (arr1->Get(i) != arr2->Get(i))
return false;
}
return true;
}
return Get<Object::Ptr>() == rhs.Get<Object::Ptr>();
}
return false;
}
bool Value::operator!=(const Value& rhs) const
{
return !(*this == rhs);
}
Value icinga::operator+(const Value& lhs, const char *rhs)
{
return lhs + Value(rhs);
}
Value icinga::operator+(const char *lhs, const Value& rhs)
{
return Value(lhs) + rhs;
}
Value icinga::operator+(const Value& lhs, const String& rhs)
{
return lhs + Value(rhs);
}
Value icinga::operator+(const String& lhs, const Value& rhs)
{
return Value(lhs) + rhs;
}
Value icinga::operator+(const Value& lhs, const Value& rhs)
{
if ((lhs.IsString() || lhs.IsEmpty()) && (rhs.IsString() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<String>(lhs) + static_cast<String>(rhs);
else if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<double>(lhs) + static_cast<double>(rhs);
else if ((lhs.IsObjectType<Array>() || lhs.IsEmpty()) && (rhs.IsObjectType<Array>() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty())) {
Array::Ptr result = new Array();
if (!lhs.IsEmpty())
static_cast<Array::Ptr>(lhs)->CopyTo(result);
if (!rhs.IsEmpty())
static_cast<Array::Ptr>(rhs)->CopyTo(result);
return result;
} else if ((lhs.IsObjectType<Dictionary>() || lhs.IsEmpty()) && (rhs.IsObjectType<Dictionary>() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty())) {
Dictionary::Ptr result = new Dictionary();
if (!lhs.IsEmpty())
static_cast<Dictionary::Ptr>(lhs)->CopyTo(result);
if (!rhs.IsEmpty())
static_cast<Dictionary::Ptr>(rhs)->CopyTo(result);
return result;
} else {
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator + cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
}
Value icinga::operator+(const Value& lhs, double rhs)
{
return lhs + Value(rhs);
}
Value icinga::operator+(double lhs, const Value& rhs)
{
return Value(lhs) + rhs;
}
Value icinga::operator+(const Value& lhs, int rhs)
{
return lhs + Value(rhs);
}
Value icinga::operator+(int lhs, const Value& rhs)
{
return Value(lhs) + rhs;
}
Value icinga::operator-(const Value& lhs, const Value& rhs)
{
if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<double>(lhs) - static_cast<double>(rhs);
else if ((lhs.IsObjectType<Array>() || lhs.IsEmpty()) && (rhs.IsObjectType<Array>() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty())) {
if (lhs.IsEmpty())
return new Array();
Array::Ptr result = new Array();
Array::Ptr left = lhs;
Array::Ptr right = rhs;
ObjectLock olock(left);
BOOST_FOREACH(const Value& lv, left) {
bool found = false;
ObjectLock xlock(right);
BOOST_FOREACH(const Value& rv, right) {
if (lv == rv) {
found = true;
break;
}
}
if (found)
continue;
result->Add(lv);
}
return result;
} else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator - cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
Value icinga::operator-(const Value& lhs, double rhs)
{
return lhs - Value(rhs);
}
Value icinga::operator-(double lhs, const Value& rhs)
{
return Value(lhs) - rhs;
}
Value icinga::operator-(const Value& lhs, int rhs)
{
return lhs - Value(rhs);
}
Value icinga::operator-(int lhs, const Value& rhs)
{
return Value(lhs) - rhs;
}
Value icinga::operator*(const Value& lhs, const Value& rhs)
{
if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<double>(lhs) * static_cast<double>(rhs);
else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator * cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
Value icinga::operator*(const Value& lhs, double rhs)
{
return lhs * Value(rhs);
}
Value icinga::operator*(double lhs, const Value& rhs)
{
return Value(lhs) * rhs;
}
Value icinga::operator*(const Value& lhs, int rhs)
{
return lhs * Value(rhs);
}
Value icinga::operator*(int lhs, const Value& rhs)
{
return Value(lhs) * rhs;
}
Value icinga::operator/(const Value& lhs, const Value& rhs)
{
if (lhs.IsEmpty())
return 0;
else if (rhs.IsEmpty())
BOOST_THROW_EXCEPTION(std::invalid_argument("Right-hand side argument for operator / is Empty."));
else if (lhs.IsNumber() && rhs.IsNumber()) {
if (static_cast<double>(rhs) == 0)
BOOST_THROW_EXCEPTION(std::invalid_argument("Right-hand side argument for operator / is 0."));
return static_cast<double>(lhs) / static_cast<double>(rhs);
} else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator / cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
Value icinga::operator/(const Value& lhs, double rhs)
{
return lhs / Value(rhs);
}
Value icinga::operator/(double lhs, const Value& rhs)
{
return Value(lhs) / rhs;
}
Value icinga::operator/(const Value& lhs, int rhs)
{
return lhs / Value(rhs);
}
Value icinga::operator/(int lhs, const Value& rhs)
{
return Value(lhs) / rhs;
}
Value icinga::operator&(const Value& lhs, const Value& rhs)
{
if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<int>(lhs) & static_cast<int>(rhs);
else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator & cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
Value icinga::operator&(const Value& lhs, double rhs)
{
return lhs & Value(rhs);
}
Value icinga::operator&(double lhs, const Value& rhs)
{
return Value(lhs) & rhs;
}
Value icinga::operator&(const Value& lhs, int rhs)
{
return lhs & Value(rhs);
}
Value icinga::operator&(int lhs, const Value& rhs)
{
return Value(lhs) & rhs;
}
Value icinga::operator|(const Value& lhs, const Value& rhs)
{
if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<int>(lhs) | static_cast<int>(rhs);
else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator | cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
Value icinga::operator|(const Value& lhs, double rhs)
{
return lhs | Value(rhs);
}
Value icinga::operator|(double lhs, const Value& rhs)
{
return Value(lhs) | rhs;
}
Value icinga::operator|(const Value& lhs, int rhs)
{
return lhs | Value(rhs);
}
Value icinga::operator|(int lhs, const Value& rhs)
{
return Value(lhs) | rhs;
}
Value icinga::operator<<(const Value& lhs, const Value& rhs)
{
if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<int>(lhs) << static_cast<int>(rhs);
else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator << cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
Value icinga::operator<<(const Value& lhs, double rhs)
{
return lhs << Value(rhs);
}
Value icinga::operator<<(double lhs, const Value& rhs)
{
return Value(lhs) << rhs;
}
Value icinga::operator<<(const Value& lhs, int rhs)
{
return lhs << Value(rhs);
}
Value icinga::operator<<(int lhs, const Value& rhs)
{
return Value(lhs) << rhs;
}
Value icinga::operator>>(const Value& lhs, const Value& rhs)
{
if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<int>(lhs) >> static_cast<int>(rhs);
else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator >> cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
Value icinga::operator>>(const Value& lhs, double rhs)
{
return lhs >> Value(rhs);
}
Value icinga::operator>>(double lhs, const Value& rhs)
{
return Value(lhs) >> rhs;
}
Value icinga::operator>>(const Value& lhs, int rhs)
{
return lhs >> Value(rhs);
}
Value icinga::operator>>(int lhs, const Value& rhs)
{
return Value(lhs) >> rhs;
}
bool icinga::operator<(const Value& lhs, const Value& rhs)
{
if (lhs.IsString() && rhs.IsString())
return static_cast<String>(lhs) < static_cast<String>(rhs);
else if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<int>(lhs) < static_cast<int>(rhs);
else if (lhs.GetTypeName() != rhs.GetTypeName())
return lhs.GetTypeName() < rhs.GetTypeName();
else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator < cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
bool icinga::operator<(const Value& lhs, double rhs)
{
return lhs < Value(rhs);
}
bool icinga::operator<(double lhs, const Value& rhs)
{
return Value(lhs) < rhs;
}
bool icinga::operator<(const Value& lhs, int rhs)
{
return lhs < Value(rhs);
}
bool icinga::operator<(int lhs, const Value& rhs)
{
return Value(lhs) < rhs;
}
bool icinga::operator>(const Value& lhs, const Value& rhs)
{
if (lhs.IsString() && rhs.IsString())
return static_cast<String>(lhs) > static_cast<String>(rhs);
else if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<int>(lhs) > static_cast<int>(rhs);
else if (lhs.GetTypeName() != rhs.GetTypeName())
return lhs.GetTypeName() > rhs.GetTypeName();
else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator > cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
bool icinga::operator>(const Value& lhs, double rhs)
{
return lhs > Value(rhs);
}
bool icinga::operator>(double lhs, const Value& rhs)
{
return Value(lhs) > rhs;
}
bool icinga::operator>(const Value& lhs, int rhs)
{
return lhs > Value(rhs);
}
bool icinga::operator>(int lhs, const Value& rhs)
{
return Value(lhs) > rhs;
}
bool icinga::operator<=(const Value& lhs, const Value& rhs)
{
if (lhs.IsString() && rhs.IsString())
return static_cast<String>(lhs) <= static_cast<String>(rhs);
else if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<int>(lhs) <= static_cast<int>(rhs);
else if (lhs.GetTypeName() != rhs.GetTypeName())
return lhs.GetTypeName() <= rhs.GetTypeName();
else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator <= cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
bool icinga::operator<=(const Value& lhs, double rhs)
{
return lhs <= Value(rhs);
}
bool icinga::operator<=(double lhs, const Value& rhs)
{
return Value(lhs) <= rhs;
}
bool icinga::operator<=(const Value& lhs, int rhs)
{
return lhs <= Value(rhs);
}
bool icinga::operator<=(int lhs, const Value& rhs)
{
return Value(lhs) <= rhs;
}
bool icinga::operator>=(const Value& lhs, const Value& rhs)
{
if (lhs.IsString() && rhs.IsString())
return static_cast<String>(lhs) >= static_cast<String>(rhs);
else if ((lhs.IsNumber() || lhs.IsEmpty()) && (rhs.IsNumber() || rhs.IsEmpty()) && !(lhs.IsEmpty() && rhs.IsEmpty()))
return static_cast<int>(lhs) >= static_cast<int>(rhs);
else if (lhs.GetTypeName() != rhs.GetTypeName())
return lhs.GetTypeName() >= rhs.GetTypeName();
else
BOOST_THROW_EXCEPTION(std::invalid_argument("Operator >= cannot be applied to values of type '" + lhs.GetTypeName() + "' and '" + rhs.GetTypeName() + "'"));
}
bool icinga::operator>=(const Value& lhs, double rhs)
{
return lhs >= Value(rhs);
}
bool icinga::operator>=(double lhs, const Value& rhs)
{
return Value(lhs) >= rhs;
}
bool icinga::operator>=(const Value& lhs, int rhs)
{
return lhs >= Value(rhs);
}
bool icinga::operator>=(int lhs, const Value& rhs)
{
return Value(lhs) >= rhs;
}