strategy

Documentation

Overview

Package strategy implements the Strategy design pattern. The User struct acts as a Context that can change its behavior dynamically at runtime by switching between different UserDataEncoder strategies. Each concrete strategy (MD5HashingStrategy, Base64EncodingStrategy or ReverseEncodingStrategy) defines a unique algorithm for encoding user data such as login, name, and surname.

Index

• func Run()
• type Base64EncodingStrategy
  • func (b *Base64EncodingStrategy) EncodeLogin(user *User) string
  • func (b *Base64EncodingStrategy) EncodeName(user *User) string
  • func (b *Base64EncodingStrategy) EncodeSurname(user *User) string
• type MD5HashingStrategy
  • func (m *MD5HashingStrategy) EncodeLogin(user *User) string
  • func (m *MD5HashingStrategy) EncodeName(user *User) string
  • func (m *MD5HashingStrategy) EncodeSurname(user *User) string
• type ReverseEncodingStrategy
  • func (r *ReverseEncodingStrategy) EncodeLogin(user *User) string
  • func (r *ReverseEncodingStrategy) EncodeName(user *User) string
  • func (r *ReverseEncodingStrategy) EncodeSurname(user *User) string
• type Strategy
• type StrategyChanger
• type User
  • func NewUser(login, name, surname string, separator rune) *User
  • func (u *User) ChangeStrategy(strategy Strategy)
  • func (u *User) String() string
• type UserDataEncoder

Functions

func Run

func Run()

Types

type Base64EncodingStrategy

type Base64EncodingStrategy struct{}

Base64EncodingStrategy implements the Base64 encoding strategy for the User's data.

func (*Base64EncodingStrategy) EncodeLogin

func (b *Base64EncodingStrategy) EncodeLogin(user *User) string

EncodeLogin allows to encode the User's login.

func (*Base64EncodingStrategy) EncodeName

func (b *Base64EncodingStrategy) EncodeName(user *User) string

EncodeName allows to encode the User's name.

func (*Base64EncodingStrategy) EncodeSurname

func (b *Base64EncodingStrategy) EncodeSurname(user *User) string

EncodeSurname allows to encode the User's surname.

type MD5HashingStrategy

type MD5HashingStrategy struct{}

MD5HashingStrategy implements the MD5 hashing strategy for the User's data.

func (*MD5HashingStrategy) EncodeLogin

func (m *MD5HashingStrategy) EncodeLogin(user *User) string

EncodeLogin allows to encode the User's login.

func (*MD5HashingStrategy) EncodeName

func (m *MD5HashingStrategy) EncodeName(user *User) string

EncodeName allows to encode the User's name.

func (*MD5HashingStrategy) EncodeSurname

func (m *MD5HashingStrategy) EncodeSurname(user *User) string

EncodeSurname allows to encode the User's surname.

type ReverseEncodingStrategy

type ReverseEncodingStrategy struct{}

ReverseEncodingStrategy implements the custom encoder that encodes the User's data by reversing the elements of it.

func (*ReverseEncodingStrategy) EncodeLogin

func (r *ReverseEncodingStrategy) EncodeLogin(user *User) string

EncodeLogin allows to encode the User's login.

func (*ReverseEncodingStrategy) EncodeName

func (r *ReverseEncodingStrategy) EncodeName(user *User) string

EncodeName allows to encode the User's name.

func (*ReverseEncodingStrategy) EncodeSurname

func (r *ReverseEncodingStrategy) EncodeSurname(user *User) string

EncodeSurname allows to encode the User's surname.

type Strategy

type Strategy byte

const (
	MD5 Strategy = iota
	Base64
	Reversed
)

Strategies enum:

type StrategyChanger

type StrategyChanger interface {
	ChangeStrategy(strategy Strategy)
}

StrategyChanger defines the changing strategy interface for User's data structures.

type User

type User struct {
	Login   string
	Name    string
	Surname string
	// contains filtered or unexported fields
}

User represents a the user entity whose data can be encoded using different strategies.

func NewUser

func NewUser(login, name, surname string, separator rune) *User

NewUser constructs a user with assigned parameters and default encoder

func (*User) ChangeStrategy

func (u *User) ChangeStrategy(strategy Strategy)

ChangeStrategy switches the encoding algorithm used for user data.

func (*User) String

func (u *User) String() string

String returns stringified version of encoded user data, with the parts separated by predefined delimiter.

type UserDataEncoder

type UserDataEncoder interface {
	EncodeName(user *User) string
	EncodeSurname(user *User) string
	EncodeLogin(user *User) string
}

UserDataEncoder defines the general interface for all User's data encoding strategies.