forked from fnproject/fn
/
config.go
127 lines (111 loc) · 2.2 KB
/
config.go
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package models
import (
"bytes"
"database/sql/driver"
"encoding/json"
"fmt"
"net/http"
)
type Config map[string]string
func (c *Config) Validate() error {
return nil
}
func (c1 Config) Equals(c2 Config) bool {
if len(c1) != len(c2) {
return false
}
for k1, v1 := range c1 {
v2, _ := c2[k1]
if v1 != v2 {
return false
}
}
return true
}
// implements sql.Valuer, returning a string
func (c Config) Value() (driver.Value, error) {
if len(c) < 1 {
return driver.Value(string("")), nil
}
var b bytes.Buffer
err := json.NewEncoder(&b).Encode(c)
// return a string type
return driver.Value(b.String()), err
}
// implements sql.Scanner
func (c *Config) Scan(value interface{}) error {
if value == nil {
*c = nil
return nil
}
bv, err := driver.String.ConvertValue(value)
if err == nil {
var b []byte
switch x := bv.(type) {
case []byte:
b = x
case string:
b = []byte(x)
}
if len(b) > 0 {
return json.Unmarshal(b, c)
}
*c = nil
return nil
}
// otherwise, return an error
return fmt.Errorf("config invalid db format: %T %T value, err: %v", value, bv, err)
}
// Headers is an http.Header that implements additional methods.
type Headers http.Header
func (h1 Headers) Equals(h2 Headers) bool {
if len(h1) != len(h2) {
return false
}
for k1, v1s := range h1 {
v2s, _ := h2[k1]
if len(v2s) != len(v1s) {
return false
}
for i, v1 := range v1s {
if v2s[i] != v1 {
return false
}
}
}
return true
}
// implements sql.Valuer, returning a string
func (h Headers) Value() (driver.Value, error) {
if len(h) < 1 {
return driver.Value(string("")), nil
}
var b bytes.Buffer
err := json.NewEncoder(&b).Encode(h)
// return a string type
return driver.Value(b.String()), err
}
// implements sql.Scanner
func (h *Headers) Scan(value interface{}) error {
if value == nil {
*h = nil
return nil
}
bv, err := driver.String.ConvertValue(value)
if err == nil {
var b []byte
switch x := bv.(type) {
case []byte:
b = x
case string:
b = []byte(x)
}
if len(b) > 0 {
return json.Unmarshal(b, h)
}
*h = nil
return nil
}
// otherwise, return an error
return fmt.Errorf("headers invalid db format: %T %T value, err: %v", value, bv, err)
}