util

Documentation

Index

• Constants
• func CamelToSnake(str string) string
• func CheckValidDCIDs(dcids []string) bool
• func GetContainedIn(typeRelationJSONFilePath string) (map[TypePair][]string, error)
• func KeyToDcid(key string) (string, error)
• func RandomString() string
• func RemoveKeyPrefix(key string) (string, error)
• func SnakeToCamel(s string) string
• func StringContainedIn(target string, strs []string) bool
• func StringList(strs []string) string
• func UnzipAndDecode(contents string) ([]byte, error)
• func ZipAndEncode(contents []byte) (string, error)
• type TypePair

Constants

const (
	// BtPlaceStatsVarPrefix for place to statsvar list cache.
	BtPlaceStatsVarPrefix = "d/0/"
	// BtPopObsPrefix for internal pop obs cache.
	BtPopObsPrefix = "d/2/"
	// BtPlaceObsPrefix for internal place obs cache.
	BtPlaceObsPrefix = "d/3/"
	// BtLandingPagePrefix for place landing page cache.
	BtLandingPagePrefix = "d/4/"
	// BtObsAncestorPrefix for the ancestor node of Bigtable.
	BtObsAncestorPrefix = "d/6/"
	// BtTriplesPrefix for internal GetTriples cache.
	BtTriplesPrefix = "d/7/"
	// BtArcsPrefix for internal arcs cache.
	BtArcsPrefix = "d/9/"
	// BtPopPrefix for population cache.
	BtPopPrefix = "d/a/"
	// BtObsPrefix for observation cache.
	BtObsPrefix = "d/b/"
	// BtPlacesInPrefix for GetPlacesIn cache.
	BtPlacesInPrefix = "d/c/"
	// BtPopPVPrefix for population PVs.
	BtPopPVPrefix = "d/d/"
	// BtChartDataPrefix for chart data.
	BtChartDataPrefix = "d/f/"
	// BtInterestingPlaceAspectPrefix for interesting place aspect.
	BtInterestingPlaceAspectPrefix = "d/k/"
	// BtInPropValPrefix for in-arc prop value.
	BtInPropValPrefix = "d/l/"
	// BtOutPropValPrefix for out-arc prop value.
	BtOutPropValPrefix = "d/m/"
	// BtRelatedLocationsPrefix for related places.
	BtRelatedLocationsPrefix = "d/n/"
	// BtRelatedLocationsSameTypePrefix for related places with same type.
	BtRelatedLocationsSameTypePrefix = "d/o/"
	// BtRelatedLocationsSameAncestorPrefix for related places with same ancestor.
	BtRelatedLocationsSameAncestorPrefix = "d/p/"
	// BtRelatedLocationsSameTypeAndAncestorPrefix for related places with same type and ancestor.
	BtRelatedLocationsSameTypeAndAncestorPrefix = "d/q/"
	// BtRelatedLocationsPCPrefix for related places, per capita.
	BtRelatedLocationsPCPrefix = "d/n0/"
	// BtRelatedLocationsSameTypePCPrefix for related places with same type, per capita.
	BtRelatedLocationsSameTypePCPrefix = "d/o0/"
	// BtRelatedLocationsSameAncestorPCPrefix for related places with same ancestor, per capita.
	BtRelatedLocationsSameAncestorPCPrefix = "d/p0/"
	// BtRelatedLocationsSameTypeAndAncestorPCPrefix for related places with same type and ancestor,
	// per capita.
	BtRelatedLocationsSameTypeAndAncestorPCPrefix = "d/q0/"

	// BtFamily is the key for the row.
	BtFamily = "csv"
	// BtCacheLimit is the cache limit. The limit is per predicate and neighbor type.
	BtCacheLimit = 500
	// BtBatchQuerySize is the size of BigTable batch query.
	BtBatchQuerySize = 1000
	// LimitFactor is the amount to multiply the limit by to make sure certain
	// triples are returned by the BQ query.
	LimitFactor = 1
	// TextType represents text type.
	TextType = "Text"
)

Functions

func CamelToSnake

func CamelToSnake(str string) string

CamelToSnake converts a camel case string to snake case string.

func CheckValidDCIDs

func CheckValidDCIDs(dcids []string) bool

CheckValidDCIDs checks if DCIDs are valid. More criteria will be added as being discovered.

func GetContainedIn

func GetContainedIn(typeRelationJSONFilePath string) (map[TypePair][]string, error)

GetContainedIn returns the contained in relation change given two types.

func KeyToDcid

func KeyToDcid(key string) (string, error)

KeyToDcid ... The Bigtable key is in the form of "x/y/dcid^prop1^prop2^..."

func RandomString

func RandomString() string

RandomString creates a random string with 16 runes.

func RemoveKeyPrefix

func RemoveKeyPrefix(key string) (string, error)

RemoveKeyPrefix removes the prefix of a big query key

func SnakeToCamel

func SnakeToCamel(s string) string

SnakeToCamel converts a snake case string to camel case string.

func StringContainedIn

func StringContainedIn(target string, strs []string) bool

StringContainedIn returns true if TARGET is contained in STRS

func StringList

func StringList(strs []string) string

StringList formats a list of strings into a comma-separated list with each surrounded with quotes.

func UnzipAndDecode

func UnzipAndDecode(contents string) ([]byte, error)

UnzipAndDecode decompresses the given contents using gzip and decodes it from base64

func ZipAndEncode

func ZipAndEncode(contents []byte) (string, error)

ZipAndEncode Compresses the given contents using gzip and encodes it in base64

Types

type TypePair

type TypePair struct {
	Child  string
	Parent string
}

TypePair represents two types that are related.