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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#include "base/value.hpp"
#include "base/array.hpp"
#include "base/dictionary.hpp"
#include "base/type.hpp"
using namespace icinga;
template class boost::variant<boost::blank, double, bool, String, Object::Ptr>;
template const double& Value::Get<double>() const;
template const bool& Value::Get<bool>() const;
template const String& Value::Get<String>() const;
template const Object::Ptr& Value::Get<Object::Ptr>() const;
Value icinga::Empty;
Value::Value(std::nullptr_t)
{ }
Value::Value(int value)
: m_Value(double(value))
{ }
Value::Value(unsigned int value)
: m_Value(double(value))
{ }
Value::Value(long value)
: m_Value(double(value))
{ }
Value::Value(unsigned long value)
: m_Value(double(value))
{ }
Value::Value(long long value)
: m_Value(double(value))
{ }
Value::Value(unsigned long long value)
: m_Value(double(value))
{ }
Value::Value(double value)
: m_Value(value)
{ }
Value::Value(bool value)
: m_Value(value)
{ }
Value::Value(const String& value)
: m_Value(value)
{ }
Value::Value(String&& value)
: m_Value(value)
{ }
Value::Value(const char *value)
: m_Value(String(value))
{ }
Value::Value(const Value& other)
: m_Value(other.m_Value)
{ }
Value::Value(Value&& other)
{
#if BOOST_VERSION >= 105400
m_Value = std::move(other.m_Value);
#else /* BOOST_VERSION */
m_Value.swap(other.m_Value);
#endif /* BOOST_VERSION */
}
Value::Value(Object *value)
: Value(Object::Ptr(value))
{ }
Value::Value(const intrusive_ptr<Object>& value)
{
if (value)
m_Value = value;
}
Value& Value::operator=(const Value& other)
{
m_Value = other.m_Value;
return *this;
}
Value& Value::operator=(Value&& other)
{
#if BOOST_VERSION >= 105400
m_Value = std::move(other.m_Value);
#else /* BOOST_VERSION */
m_Value.swap(other.m_Value);
#endif /* BOOST_VERSION */
return *this;
}
/**
* Checks whether the variant is empty.
*
* @returns true if the variant is empty, false otherwise.
*/
bool Value::IsEmpty() const
{
return (GetType() == ValueEmpty || (IsString() && boost::get<String>(m_Value).IsEmpty()));
}
/**
* Checks whether the variant is scalar (i.e. not an object and not empty).
*
* @returns true if the variant is scalar, false otherwise.
*/
bool Value::IsScalar() const
{
return !IsEmpty() && !IsObject();
}
/**
* Checks whether the variant is a number.
*
* @returns true if the variant is a number.
*/
bool Value::IsNumber() const
{
return (GetType() == ValueNumber);
}
/**
* Checks whether the variant is a boolean.
*
* @returns true if the variant is a boolean.
*/
bool Value::IsBoolean() const
{
return (GetType() == ValueBoolean);
}
/**
* Checks whether the variant is a string.
*
* @returns true if the variant is a string.
*/
bool Value::IsString() const
{
return (GetType() == ValueString);
}
/**
* Checks whether the variant is a non-null object.
*
* @returns true if the variant is a non-null object, false otherwise.
*/
bool Value::IsObject() const
{
return (GetType() == ValueObject);
}
/**
* Returns the type of the value.
*
* @returns The type.
*/
ValueType Value::GetType() const
{
return static_cast<ValueType>(m_Value.which());
}
void Value::Swap(Value& other)
{
m_Value.swap(other.m_Value);
}
bool Value::ToBool() const
{
switch (GetType()) {
case ValueNumber:
return static_cast<bool>(boost::get<double>(m_Value));
case ValueBoolean:
return boost::get<bool>(m_Value);
case ValueString:
return !boost::get<String>(m_Value).IsEmpty();
case ValueObject:
if (IsObjectType<Dictionary>()) {
Dictionary::Ptr dictionary = *this;
return dictionary->GetLength() > 0;
} else if (IsObjectType<Array>()) {
Array::Ptr array = *this;
return array->GetLength() > 0;
} else {
return true;
}
case ValueEmpty:
return false;
default:
BOOST_THROW_EXCEPTION(std::runtime_error("Invalid variant type."));
}
}
String Value::GetTypeName() const
{
Type::Ptr t;
switch (GetType()) {
case ValueEmpty:
return "Empty";
case ValueNumber:
return "Number";
case ValueBoolean:
return "Boolean";
case ValueString:
return "String";
case ValueObject:
t = boost::get<Object::Ptr>(m_Value)->GetReflectionType();
if (!t) {
if (IsObjectType<Array>())
return "Array";
else if (IsObjectType<Dictionary>())
return "Dictionary";
else
return "Object";
} else
return t->GetName();
default:
return "Invalid";
}
}
Type::Ptr Value::GetReflectionType() const
{
switch (GetType()) {
case ValueEmpty:
return Object::TypeInstance;
case ValueNumber:
return Type::GetByName("Number");
case ValueBoolean:
return Type::GetByName("Boolean");
case ValueString:
return Type::GetByName("String");
case ValueObject:
return boost::get<Object::Ptr>(m_Value)->GetReflectionType();
default:
return nullptr;
}
}
Value Value::Clone() const
{
if (IsObject())
return static_cast<Object::Ptr>(*this)->Clone();
else
return *this;
}
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