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remove: decoder code from marshaler

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This commit is contained in:
Inanc Gumus
2019-09-02 22:47:49 +03:00
parent 4c9645a10d
commit 5f7b9eabed
4 changed files with 0 additions and 217 deletions
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60
interfaces/10-marshaler/_decoder.go
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@ -1,60 +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"
"reflect"
)
type decoder map[string]interface{}
type schema struct {
Category string
Item json.RawMessage
}
func (d decoder) decode(data []byte) (list, error) {
var schemas []schema
if err := json.Unmarshal(data, &schemas); err != nil {
return nil, err
}
return d.products(schemas)
}
func (d decoder) products(ss []schema) (list, error) {
var store list
for _, s := range ss {
prod, err := d.product(s.Category, s.Item)
if err != nil {
return nil, err
}
store = append(store, prod)
}
return store, nil
}
func (d decoder) product(kind string, data []byte) (item, error) {
p := d.newProduct(kind)
err := json.Unmarshal(data, p)
return p, err
}
func (d decoder) newProduct(kind string) item {
t := reflect.TypeOf(d[kind])
v := reflect.New(t)
return v.Interface().(item)
}

85
interfaces/10-marshaler/_decoder_reader.go
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@ -1,85 +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"
"io"
"io/ioutil"
"os"
"reflect"
)
type decoder map[string]interface{}
type schema struct {
Category string
Item json.RawMessage
}
func (d decoder) fromFile(path string) (list, error) {
f, err := os.Open(path)
if err != nil {
return nil, err
}
return d.readFile(f)
}
func (d decoder) readFile(f *os.File) (list, error) {
return d.read(f)
}
func (d decoder) read(r io.Reader) (list, error) {
data, err := ioutil.ReadAll(r)
if err != nil {
return nil, err
}
return d.decode(data)
}
func (d decoder) decode(data []byte) (list, error) {
var schemas []schema
if err := json.Unmarshal(data, &schemas); err != nil {
return nil, err
}
return d.products(schemas)
}
func (d decoder) products(ss []schema) (list, error) {
var store list
for _, s := range ss {
prod, err := d.product(s.Category, s.Item)
if err != nil {
return nil, err
}
store = append(store, prod)
}
return store, nil
}
func (d decoder) product(kind string, data []byte) (item, error) {
p := d.newProduct(kind)
err := json.Unmarshal(data, p)
return p, err
}
func (d decoder) newProduct(kind string) item {
t := reflect.TypeOf(d[kind])
v := reflect.New(t)
return v.Interface().(item)
}

42
interfaces/10-marshaler/_main.go
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@ -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)
}

30
interfaces/10-marshaler/_main_reader.go
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@ -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 := dec.read(os.Stdin)
if err != nil {
log.Fatalln(err)
}
fmt.Print(store)
}