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97 lines
2.4 KiB
97 lines
2.4 KiB
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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package gtype
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import (
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"bytes"
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"encoding/base64"
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"sync/atomic"
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"github.com/gogf/gf/v2/errors/gerror"
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"github.com/gogf/gf/v2/util/gconv"
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)
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// Bytes is a struct for concurrent-safe operation for type []byte.
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type Bytes struct {
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value atomic.Value
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}
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// NewBytes creates and returns a concurrent-safe object for []byte type,
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// with given initial value `value`.
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func NewBytes(value ...[]byte) *Bytes {
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t := &Bytes{}
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if len(value) > 0 {
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t.value.Store(value[0])
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}
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return t
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}
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// Clone clones and returns a new shallow copy object for []byte type.
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func (v *Bytes) Clone() *Bytes {
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return NewBytes(v.Val())
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}
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// Set atomically stores `value` into t.value and returns the previous value of t.value.
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// Note: The parameter `value` cannot be nil.
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func (v *Bytes) Set(value []byte) (old []byte) {
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old = v.Val()
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v.value.Store(value)
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return
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}
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// Val atomically loads and returns t.value.
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func (v *Bytes) Val() []byte {
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if s := v.value.Load(); s != nil {
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return s.([]byte)
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}
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return nil
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}
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// String implements String interface for string printing.
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func (v *Bytes) String() string {
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return string(v.Val())
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}
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// MarshalJSON implements the interface MarshalJSON for json.Marshal.
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func (v Bytes) MarshalJSON() ([]byte, error) {
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val := v.Val()
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dst := make([]byte, base64.StdEncoding.EncodedLen(len(val)))
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base64.StdEncoding.Encode(dst, val)
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return []byte(`"` + string(dst) + `"`), nil
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}
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// UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.
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func (v *Bytes) UnmarshalJSON(b []byte) error {
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var (
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src = make([]byte, base64.StdEncoding.DecodedLen(len(b)))
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n, err = base64.StdEncoding.Decode(src, bytes.Trim(b, `"`))
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)
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if err != nil {
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err = gerror.Wrap(err, `base64.StdEncoding.Decode failed`)
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return err
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}
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v.Set(src[:n])
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return nil
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}
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// UnmarshalValue is an interface implement which sets any type of value for `v`.
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func (v *Bytes) UnmarshalValue(value interface{}) error {
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v.Set(gconv.Bytes(value))
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return nil
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}
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// DeepCopy implements interface for deep copy of current type.
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func (v *Bytes) DeepCopy() interface{} {
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if v == nil {
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return nil
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}
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oldBytes := v.Val()
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newBytes := make([]byte, len(oldBytes))
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copy(newBytes, oldBytes)
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return NewBytes(newBytes)
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}
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