tool

func BlankIf ¶

func BlankIf(in, defaultValue string) (out string)

func CloneMap ¶

func CloneMap(m map[string]interface{}) map[string]interface{}

func CopySlice ¶

func CopySlice(s interface{}) interface{}

func DecodeUriCompontent ¶

func DecodeUriCompontent(encoded string) (string, error)

func DecodeZigZagInt ¶

func DecodeZigZagInt(b []byte) (r int64, ate int)

DecodeZigZagInt 解码 protobuffer 的变长整数（int8,int16,int32,int64）

func DecodeZigZagUint ¶

func DecodeZigZagUint(b []byte) (r uint64, ate int)

func EncodeUriComponent ¶

func EncodeUriComponent(rawString string) string

EncodeUriComponent convert 'a b/c' -> 'a+b%2fc' origin := "äöüHel/lo world" encoded := EncodeUriComponent(origin) fmt.Println(encoded)

s, _ := DecodeUriCompontent(encoded) fmt.Println(s)

func FileExists ¶

func FileExists(name string) bool

FileExists returns true if the file `name` was existed.

func FindService ¶

func FindService(what string)

what: "addr", "grpc", "health"

func GetCurrentDir ¶

func GetCurrentDir() string

GetCurrentDir returns the current os working directory pathname.

func GetExcutableDir ¶

func GetExcutableDir() string

GetExcutableDir returns this executable file pathname

func HostToIp ¶

func HostToIp(host string) string

HostToIp would parse string and transform host to ip addresses.

The valid formats are:

host[:port],
scheme://host[:port]/path,

func IncGrpcListen ¶

func IncGrpcListen(prefix string) (listen string, port int)

IncGrpcListen for grpc server

func IncPort ¶

func IncPort() int

func IncPortAndAddr ¶

func IncPortAndAddr(prefix string) (addr string)

func Int64SecondsToTime ¶

func Int64SecondsToTime(utcTimeSeconds int64) (tm time.Time)

func Int64ToTime ¶

func Int64ToTime(utcTime int64) (tm time.Time)

utcTime is a nanoseconds

func Int64ToTimestamp ¶

func Int64ToTimestamp(utcTime int64) (ts *timestamp.Timestamp)

func Intv ¶

func Intv(s string) (v int)

Intv 忽略任何错误转换字符串为整数值并返回。如果无法转换，返回值为0

func IsCancelled ¶

func IsCancelled(err error) (ret bool)

func IsCancelledOrDeadline ¶

func IsCancelledOrDeadline(err error) (ret bool)

func IsDeadline ¶

func IsDeadline(err error) (ret bool)

func IsSlice ¶

func IsSlice(v interface{}) bool

func IsV4 ¶

func IsV4(ip net.IP) bool

func IsV6 ¶

func IsV6(ip net.IP) bool

func LoadGRPCListenConfig ¶

func LoadGRPCListenConfig(prefix string) (listen string, id string, disabled bool, port int)

LoadGRPCListenConfig loads config info of MAIN grpc service Generally, it loads a map from `prefix` (such as "server.grpc.<service-name>") and extract sub-keys: "listen", "id", "disabled"

func LoadGRPCListenSpecialConfig ¶

func LoadGRPCListenSpecialConfig(prefix, serviceName string) (listen string, id string, disabled bool, port int)

LoadGRPCListenConfig loads config info from `prefix`.`serviceName`

func LoadHostDefinition ¶

func LoadHostDefinition(prefix string) (addr string)

LoadHostDefinition loads the dependence info from config entry `server.deps.xxx` LoadHostDefinition("server.deps.apply")

func LookupHostInfo ¶

func LookupHostInfo(ipv6Prefer, ipv4Prefer bool) (ip net.IP, port int, err error)

func LookupHostInfoOld ¶

func LookupHostInfoOld() (net.IP, int, error)

LookupHostInfoOld 依据配置文件的 server.rpc_address 尝试解释正确的rpc地址，通常是IPv4的

func LookupHostInfoOld2 ¶

func LookupHostInfoOld2() (ip net.IP, port int, err error)

func MergeMap ¶

func MergeMap(maps ...map[string]interface{}) map[string]interface{}

func MergeSlice ¶

func MergeSlice(target interface{}, source interface{}) interface{}

func NullIf ¶

func NullIf(in, defaultValue interface{}) (out interface{})

func Pollard ¶

func Pollard(in interface{}) interface{}

Pollard 转换一个泛型对象中的全部 map[interface{}]interface{} 子对象为 map[string]interface{} 在转换完毕之后，新的返回对象将能够正确地被json编码： text = `age: 12 name: joe` obj, err := yaml.Unmarshal(text) b, err := json.Marshal(Pollard(obj))

典型的用途在于将 golang 对象直接json输出时

func PollardArray ¶

func PollardArray(in []interface{}) interface{}

func Port ¶

func Port() int

func PressAnyKeyToContinue ¶

func PressAnyKeyToContinue(msg ...string) (input string)

func PressEnterToContinue ¶

func PressEnterToContinue(msg ...string) (input string)

func RandRandSeq ¶

func RandRandSeq() string

RandRandSeq returns a random string with random length (1..127)

func RandSeq ¶

func RandSeq(n int) string

RandSeq returns a random string with specified length 'n'

func RandSeqln ¶

func RandSeqln(n int) string

RandSeqln returns a random string with specified length 'n', and it has a '\n' character tail.

func String ¶

func String(length int) string

String returns a random string with length specified

func StringVariantLength ¶

func StringVariantLength(minLength, maxLength int) string

String returns a random string with length specified

func StringWithCharset ¶

func StringWithCharset(length int, charset string) string

StringWithCharset generate random string

func ThisHost ¶

func ThisHost() (ip net.IP)

ThisHost 返回当前服务器的LAN ip，通过本机名进行反向解析

func ThisHostname ¶

func ThisHostname() string

ThisHostname 返回本机名

func TimeToTimestamp ¶

func TimeToTimestamp(tm time.Time) (ts *timestamp.Timestamp)

func TimestampToTime ¶

func TimestampToTime(ts *timestamp.Timestamp) (tm time.Time)

func UrlEncodedSimple ¶

func UrlEncodedSimple(str string) (string, error)

UrlEncoded encodes a string like Javascript's encodeURIComponent() Example: Turns "My String" to "My%20String"

func ZeroIf ¶

func ZeroIf(in, defaultValue uint64) (out uint64)

func ZeroIfAny ¶

func ZeroIfAny(in, defaultValue interface{}) (out interface{})