void ConvertTo(json_spirit::Value& value, bool fAllowNull=false)
{
if (fAllowNull && value.type() == json_spirit::null_type)
return;
if (value.type() == json_spirit::str_type)
{
// reinterpret string as unquoted json value
json_spirit::Value value2;
std::string strJSON = value.get_str();
if (!read_string(strJSON, value2))
throw std::runtime_error(std::string("Error parsing JSON:")+strJSON);
ConvertTo<T>(value2, fAllowNull);
value = value2;
}
else
{
value = value.get_value<T>();
}
}
// Convert from a JSON to an AtNode
static AtSmartPtr<AtNode> ConvertNode(json_spirit::Value node)
{
AtSmartPtr<AtNode> obj (new AtNode());
if (node.type() == json_spirit::str_type)
{
obj->value = std::wstring(node.get_str().begin(),node.get_str().end());
}
else if (node.type() == json_spirit::int_type || node.type() == json_spirit::real_type)
{
std::wstringstream stream;
if (node.type() == json_spirit::int_type)
stream << node.get_int();
if (node.type() == json_spirit::real_type)
stream << node.get_real();
obj->value = stream.str().c_str();
obj->children.insert(AtNode::child_pairtype(
"@number", AtSmartPtr<AtNode>(new AtNode())
));
}
else if (node.type() == json_spirit::bool_type)
{
if (node.get_bool())
obj->value = L"true";
else
obj->value = L"false";
obj->children.insert(AtNode::child_pairtype(
"@boolean", AtSmartPtr<AtNode>(new AtNode())
));
}
else if (node.type() == json_spirit::array_type)
{
obj->children.insert(AtNode::child_pairtype(
"@array", AtSmartPtr<AtNode>(new AtNode())
));
json_spirit::Array nodeChildren = node.get_array();
json_spirit::Array::iterator itr = nodeChildren.begin();
for (; itr != nodeChildren.end(); itr++)
{
obj->children.insert(AtNode::child_pairtype(
"item", ConvertNode(*itr)
));
}
}
else if (node.type() == json_spirit::obj_type)
{
json_spirit::Object objectProperties = node.get_obj();
json_spirit::Object::iterator itr = objectProperties.begin();
for (; itr != objectProperties.end(); itr++)
{
obj->children.insert(AtNode::child_pairtype(
itr->name_, ConvertNode(itr->value_)
));
}
}
else if (node.type() == json_spirit::null_type)
{
return obj;
}
else
{
assert(! "Unimplemented type found when parsing JSON!");
}
return obj;
}