1 files changed, 264 insertions, 0 deletions
diff --git a/lib/base/value.cpp b/lib/base/value.cpp
new file mode 100644
index 0000000..867c821
--- /dev/null
+++ b/lib/base/value.cpp
@@ -0,0 +1,264 @@
+/* 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;
+}