props

Documentation

Index

• func DecoderFn(r io.Reader, x interface{}) error
• func EncoderFn(w io.Writer, x interface{}) error
• type LookupFn
  • func MapLookup(data map[string]string) LookupFn
• type Path
  • func ParsePath(raw string) Path
• type PathSegment
  • func (ps PathSegment) String() string
• type Resolver
• type ResolverBuilder
  • func Builder() ResolverBuilder

Functions

func DecoderFn

func DecoderFn(r io.Reader, x interface{}) error

func EncoderFn

func EncoderFn(w io.Writer, x interface{}) error

Types

type LookupFn

type LookupFn func(key string) *string

LookupFn looks up value corresponding to given key.

func MapLookup

func MapLookup(data map[string]string) LookupFn

MapLookup returns simple LookupFn that looks into provided map

type Path

type Path []PathSegment

func ParsePath

func ParsePath(raw string) Path

ParsePath parses path specification in string form into Path.

type PathSegment

type PathSegment struct {
	Index int
	IsNum bool
	Value string
}

func (PathSegment) String

func (ps PathSegment) String() string

type Resolver

type Resolver interface {
	// Resolve resolves placeholder. Panics if there is circular reference.
	Resolve(in string) string
}

Resolver allows to resolve placeholder in property values. Nested placeholders are supported.

type ResolverBuilder

type ResolverBuilder interface {
	// Prefix sets placeholder prefix. When not set, "${" will be used.
	Prefix(string) ResolverBuilder
	// Suffix sets placeholder suffix. When not set, "}" will be used.
	Suffix(string) ResolverBuilder
	// ValueSeparator sets value separator. When not set, ":" will be used.
	ValueSeparator(string) ResolverBuilder
	// LookupFunc sets LookupFn that is used to perform lookups.
	// Call to this function must be made prior to invoking MustBuild function.
	LookupFunc(LookupFn) ResolverBuilder
	// MustBuild builds Resolver from this instance. Panics if mandatory fields has not been set.
	MustBuild() Resolver
}

ResolverBuilder is fluent builder for Resolver interface

func Builder

func Builder() ResolverBuilder

Builder returns new ResolverBuilder with defaults set.