ql

Documentation

Index

• Variables
• func ParseQuery(query string) (bson.M, error)
• func QLKeys(qlKey string) ([]string, error)
• type QLKey
  • func (qlKey *QLKey) String() string
• type QLManager
  • func (q *QLManager) Init(fname string) error
  • func (q *QLManager) Keys(srv string) []string
  • func (q *QLManager) ServiceQueries(query string) (map[string]bson.M, error)
  • func (q *QLManager) Services() []string
• type SchemaKeys
• type ServiceMap

Variables

var Separator = ":"

Separator defines FOXDEN query separator

var Verbose int

Verbose defines verbosity level for this module

Functions

func ParseQuery

func ParseQuery(query string) (bson.M, error)

ParseQuery function provides basic parser for user queries and return results in bson dictionary

func QLKeys

func QLKeys(qlKey string) ([]string, error)

QLKeys return list of ql keys

Types

type QLKey

type QLKey struct {
	Key         string `json:"key"`
	Description string `json:"description,omitempty"`
	Service     string `json:"service"`
	Units       string `json:"units,omitempty"`
	Schema      string `json:"schema,omitempty"`
	DataType    string `json:"type"`
}

QLKey defines structure of QL key

func (*QLKey) String

func (qlKey *QLKey) String() string

String returns string representation of ql key

type QLManager

type QLManager struct {
	Map ServiceMap
}

QLManager represents QL manager

func (*QLManager) Init

func (q *QLManager) Init(fname string) error

Init function loads service map from given file name

func (*QLManager) Keys

func (q *QLManager) Keys(srv string) []string

Keys provides list of keys associated with FOXDEN service name

func (*QLManager) ServiceQueries

func (q *QLManager) ServiceQueries(query string) (map[string]bson.M, error)

ServiceQueries parses given query string into list of service queries

func (*QLManager) Services

func (q *QLManager) Services() []string

Services returns list of services known to QL manager

type SchemaKeys

type SchemaKeys map[string]string

SchemaKeys represents full collection of schema keys across all schemas

type ServiceMap

type ServiceMap map[string][]string

ServiceMap defines FOXDEN service QL mapping