From d217463316a530d63d3059eed465ce32bda15fc8 Mon Sep 17 00:00:00 2001 From: Inanc Gumus Date: Sat, 7 Sep 2019 23:06:28 +0300 Subject: [PATCH] remove: reflection decoder --- .../reflection-decoder/_decoder_reader.go | 33 ------ interfaces/reflection-decoder/_main.go | 42 ------- interfaces/reflection-decoder/_main_reader.go | 30 ----- interfaces/reflection-decoder/book.go | 21 ---- interfaces/reflection-decoder/database.go | 107 ------------------ interfaces/reflection-decoder/database.json | 54 --------- interfaces/reflection-decoder/game.go | 12 -- interfaces/reflection-decoder/list.go | 41 ------- interfaces/reflection-decoder/main.go | 63 ----------- interfaces/reflection-decoder/money.go | 16 --- interfaces/reflection-decoder/product.go | 23 ---- interfaces/reflection-decoder/puzzle.go | 12 -- interfaces/reflection-decoder/timestamp.go | 77 ------------- interfaces/reflection-decoder/toy.go | 12 -- 14 files changed, 543 deletions(-) delete mode 100644 interfaces/reflection-decoder/_decoder_reader.go delete mode 100644 interfaces/reflection-decoder/_main.go delete mode 100644 interfaces/reflection-decoder/_main_reader.go delete mode 100644 interfaces/reflection-decoder/book.go delete mode 100644 interfaces/reflection-decoder/database.go delete mode 100755 interfaces/reflection-decoder/database.json delete mode 100644 interfaces/reflection-decoder/game.go delete mode 100644 interfaces/reflection-decoder/list.go delete mode 100644 interfaces/reflection-decoder/main.go delete mode 100644 interfaces/reflection-decoder/money.go delete mode 100644 interfaces/reflection-decoder/product.go delete mode 100644 interfaces/reflection-decoder/puzzle.go delete mode 100644 interfaces/reflection-decoder/timestamp.go delete mode 100644 interfaces/reflection-decoder/toy.go diff --git a/interfaces/reflection-decoder/_decoder_reader.go b/interfaces/reflection-decoder/_decoder_reader.go deleted file mode 100644 index a3f656f..0000000 --- a/interfaces/reflection-decoder/_decoder_reader.go +++ /dev/null @@ -1,33 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import ( - "io" - "io/ioutil" - "os" -) - -func fromFile(f *os.File) (list, error) { - return fromReader(f) -} - -func fromReader(r io.Reader) (list, error) { - data, err := ioutil.ReadAll(r) - if err != nil { - return nil, err - } - - var store list - - if err := json.Unmarshal(data, &store); err != nil { - return nil, err - } - - return store, nil -} diff --git a/interfaces/reflection-decoder/_main.go b/interfaces/reflection-decoder/_main.go deleted file mode 100644 index 9679ed2..0000000 --- a/interfaces/reflection-decoder/_main.go +++ /dev/null @@ -1,42 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import ( - "fmt" - "io/ioutil" - "log" - "os" -) - -func main() { - dec := make(decoder) - dec["book"] = book{} - dec["game"] = game{} - dec["puzzle"] = puzzle{} - dec["toy"] = toy{} - - data, err := ioutil.ReadAll(os.Stdin) - if err != nil { - log.Fatalln(err) - } - - store, err := dec.decode(data) - if err != nil { - log.Fatalln(err) - } - - fmt.Print(store) - - // store.discount(.5) - // fmt.Print(store) - - // ---- - // data, err := save(store) - // fmt.Println(string(data), err) -} diff --git a/interfaces/reflection-decoder/_main_reader.go b/interfaces/reflection-decoder/_main_reader.go deleted file mode 100644 index 977248d..0000000 --- a/interfaces/reflection-decoder/_main_reader.go +++ /dev/null @@ -1,30 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import ( - "fmt" - "log" - "os" -) - -func main() { - dec := decoder{ - "book": book{}, - "game": game{}, - "puzzle": puzzle{}, - "toy": toy{}, - } - - store, err := fromReader(os.Stdin) - if err != nil { - log.Fatalln(err) - } - - fmt.Print(store) -} diff --git a/interfaces/reflection-decoder/book.go b/interfaces/reflection-decoder/book.go deleted file mode 100644 index c36372f..0000000 --- a/interfaces/reflection-decoder/book.go +++ /dev/null @@ -1,21 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import ( - "fmt" -) - -type book struct { - product - Published timestamp -} - -func (b *book) String() string { - return fmt.Sprintf("%s - (%s)", &b.product, b.Published) -} diff --git a/interfaces/reflection-decoder/database.go b/interfaces/reflection-decoder/database.go deleted file mode 100644 index 948e3b7..0000000 --- a/interfaces/reflection-decoder/database.go +++ /dev/null @@ -1,107 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import ( - "encoding/json" - "fmt" - "io/ioutil" - "log" - "os" - "reflect" -) - -type database struct { - list *list - types map[string]item -} - -func (db *database) save() error { - data, err := json.MarshalIndent(db, "", "\t") - if err != nil { - log.Fatalln(err) - } - - return ioutil.WriteFile("database.json", data, os.ModePerm) -} - -func (db *database) load() error { - data, err := ioutil.ReadFile("database.json") - if err != nil { - return err - } - - if err = json.Unmarshal(data, db); err != nil { - return err - } - - return nil -} - -func (db *database) MarshalJSON() ([]byte, error) { - type encodable struct { - Category string - Item item - } - - var e []encodable - - for _, it := range *db.list { - // TypeOf -> finds the dynamic type of "it" - // Elem -> returns the element type of the pointer - // Name -> returns the type name as string - cat := reflect.TypeOf(it).Elem().Name() - e = append(e, encodable{cat, it}) - } - - return json.Marshal(e) -} - -func (db *database) UnmarshalJSON(data []byte) error { - var decodables []struct { - Category string - Item json.RawMessage - } - - if err := json.Unmarshal(data, &decodables); err != nil { - return err - } - - for _, d := range decodables { - it, err := db.newItem(d.Category) - if err != nil { - return err - } - - if err := json.Unmarshal(d.Item, &it); err != nil { - return err - } - - *db.list = append(*db.list, it) - } - - return nil -} - -func (db *database) register(category string, t item) { - if db.types == nil { - db.types = make(map[string]item) - } - db.types[category] = t -} - -func (db *database) newItem(category string) (item, error) { - it, ok := db.types[category] - if !ok { - return nil, fmt.Errorf("register %q within database before decoding", category) - } - - t := reflect.TypeOf(it).Elem() - v := reflect.New(t) - return v.Interface().(item), nil -} diff --git a/interfaces/reflection-decoder/database.json b/interfaces/reflection-decoder/database.json deleted file mode 100755 index 201fcfc..0000000 --- a/interfaces/reflection-decoder/database.json +++ /dev/null @@ -1,54 +0,0 @@ -[ - { - "Category": "book", - "Item": { - "Title": "moby dick", - "Price": 10, - "Published": 118281600 - } - }, - { - "Category": "book", - "Item": { - "Title": "odyssey", - "Price": 15, - "Published": 733622400 - } - }, - { - "Category": "book", - "Item": { - "Title": "hobbit", - "Price": 25, - "Published": -62135596800 - } - }, - { - "Category": "puzzle", - "Item": { - "Title": "rubik's cube", - "Price": 5 - } - }, - { - "Category": "game", - "Item": { - "Title": "minecraft", - "Price": 20 - } - }, - { - "Category": "game", - "Item": { - "Title": "tetris", - "Price": 5 - } - }, - { - "Category": "toy", - "Item": { - "Title": "yoda", - "Price": 150 - } - } -] \ No newline at end of file diff --git a/interfaces/reflection-decoder/game.go b/interfaces/reflection-decoder/game.go deleted file mode 100644 index 3604b15..0000000 --- a/interfaces/reflection-decoder/game.go +++ /dev/null @@ -1,12 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -type game struct { - product -} diff --git a/interfaces/reflection-decoder/list.go b/interfaces/reflection-decoder/list.go deleted file mode 100644 index ff0b6a9..0000000 --- a/interfaces/reflection-decoder/list.go +++ /dev/null @@ -1,41 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import ( - "fmt" - "strings" -) - -type item interface { - discount(float64) - fmt.Stringer -} - -type list []item - -func (l list) String() string { - if len(l) == 0 { - return "Sorry. We're waiting for delivery 🚚." - } - - var str strings.Builder - - for _, it := range l { - str.WriteString(it.String()) - str.WriteRune('\n') - } - - return str.String() -} - -func (l list) discount(ratio float64) { - for _, it := range l { - it.discount(ratio) - } -} diff --git a/interfaces/reflection-decoder/main.go b/interfaces/reflection-decoder/main.go deleted file mode 100644 index b6693e2..0000000 --- a/interfaces/reflection-decoder/main.go +++ /dev/null @@ -1,63 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import ( - "encoding/json" - "fmt" - "io/ioutil" - "log" -) - -func main() { - var store list - - // db := database{list: &store} - // db.register("book", new(book)) - // db.register("game", new(game)) - // db.register("puzzle", new(puzzle)) - // db.register("toy", new(toy)) - - // if err := db.load(); err != nil { - // log.Fatalln(err) - // } - - data, err := ioutil.ReadFile("database.json") - if err != nil { - log.Fatalln(err) - } - - if err = json.Unmarshal(data, &store); err != nil { - log.Fatalln(err) - } - - fmt.Print(store) - - /* - store := list{ - &book{product{"moby dick", 10}, toTimestamp(118281600)}, - &book{product{"odyssey", 15}, toTimestamp("733622400")}, - &book{product{"hobbit", 25}, unknown}, - &puzzle{product{"rubik's cube", 5}}, - &game{product{"minecraft", 20}}, - &game{product{"tetris", 5}}, - &toy{product{"yoda", 150}}, - } - - db := &database{list: &store} - if err := db.save(); err != nil { - log.Fatalln(err) - } - - // out, err := json.MarshalIndent(db, "", "\t") - // if err != nil { - // log.Fatalln(err) - // } - // fmt.Println(string(out)) - */ -} diff --git a/interfaces/reflection-decoder/money.go b/interfaces/reflection-decoder/money.go deleted file mode 100644 index 095a039..0000000 --- a/interfaces/reflection-decoder/money.go +++ /dev/null @@ -1,16 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import "fmt" - -type money float64 - -func (m money) String() string { - return fmt.Sprintf("$%.2f", m) -} diff --git a/interfaces/reflection-decoder/product.go b/interfaces/reflection-decoder/product.go deleted file mode 100644 index f93cb84..0000000 --- a/interfaces/reflection-decoder/product.go +++ /dev/null @@ -1,23 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import "fmt" - -type product struct { - Title string - Price money -} - -func (p *product) String() string { - return fmt.Sprintf("%-15s: %s", p.Title, p.Price) -} - -func (p *product) discount(ratio float64) { - p.Price *= money(1 - ratio) -} diff --git a/interfaces/reflection-decoder/puzzle.go b/interfaces/reflection-decoder/puzzle.go deleted file mode 100644 index acbaa47..0000000 --- a/interfaces/reflection-decoder/puzzle.go +++ /dev/null @@ -1,12 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -type puzzle struct { - product -} diff --git a/interfaces/reflection-decoder/timestamp.go b/interfaces/reflection-decoder/timestamp.go deleted file mode 100644 index dad84a2..0000000 --- a/interfaces/reflection-decoder/timestamp.go +++ /dev/null @@ -1,77 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -import ( - "strconv" - "time" -) - -// Mon Jan 2 15:04:05 -0700 MST 2006 -const layout = "2006/01" - -// unknown is the zero value of a timestamp. -var unknown = timestamp(time.Time{}) - -// timestamp prints timestamps, it's a stringer. -// It is useful even if it's zero. -type timestamp time.Time - -// MarshalJSON is an implementation of the json.Marshaler interface. -// json.Marshal and json.Encode call this method. -func (ts timestamp) MarshalJSON() (out []byte, err error) { - u := time.Time(ts).Unix() - return strconv.AppendInt(out, u, 10), nil -} - -// UnmarshalJSON is an implementation of the json.Unmarshaler interface. -// json.Unmarshal and json.Decode call this method. -func (ts *timestamp) UnmarshalJSON(data []byte) error { - s := string(data) - - // Let the ParseInt parse quoted strings. - us, err := strconv.Unquote(s) - if err == nil { - s = us - } - - // Always overwrite the timestamp when decoding. - *ts = unknown - - // Handle the numeric case. - if n, err := strconv.ParseInt(s, 10, 64); err == nil { - *ts = timestamp(time.Unix(n, 0)) - } - - return nil -} - -func (ts timestamp) String() string { - t := time.Time(ts) - - if t.IsZero() { - return "unknown" - } - - return t.Format(layout) -} - -func toTimestamp(v interface{}) timestamp { - var t int - - switch v := v.(type) { - case int: - t = v - case string: - t, _ = strconv.Atoi(v) - default: - return unknown - } - - return timestamp(time.Unix(int64(t), 0)) -} diff --git a/interfaces/reflection-decoder/toy.go b/interfaces/reflection-decoder/toy.go deleted file mode 100644 index ab5613d..0000000 --- a/interfaces/reflection-decoder/toy.go +++ /dev/null @@ -1,12 +0,0 @@ -// For more tutorials: https://blog.learngoprogramming.com -// -// Copyright © 2018 Inanc Gumus -// Learn Go Programming Course -// License: https://creativecommons.org/licenses/by-nc-sa/4.0/ -// - -package main - -type toy struct { - product -}