anonymous_namespace{cluster_metadata_instance_attributes.cc} Namespace Reference

Functions
stdx::expected< std::optional< std::string >, std::string >	get_string_attribute (const std::string_view &attributes, const std::string_view &name)
	Returns value for the string field set in the attributes. More...
static stdx::expected< bool, std::string >	get_bool_tag (const std::map< std::string, std::string, std::less<> > &tags, const std::string_view &name, const bool default_value)
	Returns value for the boolean field set in the attributes. More...
std::map< std::string, std::string, std::less<> >	get_json_attributes (const rapidjson::Value &obj)
	Get a set of key value pairs from a JSON object. More...

Function Documentation

get_bool_tag()

static stdx::expected< bool, std::string > anonymous_namespace{cluster_metadata_instance_attributes.cc}::get_bool_tag ( const std::map< std::string, std::string, std::less<> > &  tags, const std::string_view &  name, const bool  default_value  )

static

Returns value for the boolean field set in the attributes.

Parameters

tags	map containing tags
name	name of the field to be fetched
default_value	value to be returned in case the given attribute is not present in the JSON

Return values

value	of the attribute JSON field as boolean
std::nullptr	if the given field is missing
error	message if reading attribute from JSON failed.

get_json_attributes()

std::map< std::string, std::string, std::less<> > anonymous_namespace{cluster_metadata_instance_attributes.cc}::get_json_attributes

(

const rapidjson::Value &

obj

)

Get a set of key value pairs from a JSON object.

In case when the JSON value is String the value returned is enclosed in "" quotes, otherwise it is serialized as a string.

Parameters

obj	JSON object containing key value pairs that are going to be serialized.

Returns

key value pairs parsed from JSON object.

get_string_attribute()

stdx::expected< std::optional< std::string >, std::string > anonymous_namespace{cluster_metadata_instance_attributes.cc}::get_string_attribute	(	const std::string_view &	attributes,
		const std::string_view &	name
	)

Returns value for the string field set in the attributes.

Parameters

attributes	string containing JSON with the attributes
name	name of the field to be fetched

Return values

value	of the attribute JSON field as string
std::nullptr	if the given field is missing
error	message if reading attribute from JSON failed.