143 lines
3.6 KiB
Go
143 lines
3.6 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package json
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import (
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"bytes"
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"encoding/json"
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"io"
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jsoniter "github.com/json-iterator/go"
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)
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// Encoder represents an encoder for json
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type Encoder interface {
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Encode(v interface{}) error
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}
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// Decoder represents a decoder for json
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type Decoder interface {
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Decode(v interface{}) error
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}
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// Interface represents an interface to handle json data
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type Interface interface {
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Marshal(v interface{}) ([]byte, error)
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Unmarshal(data []byte, v interface{}) error
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NewEncoder(writer io.Writer) Encoder
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NewDecoder(reader io.Reader) Decoder
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Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error
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}
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var (
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// DefaultJSONHandler default json handler
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DefaultJSONHandler Interface = JSONiter{jsoniter.ConfigCompatibleWithStandardLibrary}
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_ Interface = StdJSON{}
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_ Interface = JSONiter{}
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)
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// StdJSON implements Interface via encoding/json
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type StdJSON struct{}
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// Marshal implements Interface
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func (StdJSON) Marshal(v interface{}) ([]byte, error) {
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return json.Marshal(v)
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}
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// Unmarshal implements Interface
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func (StdJSON) Unmarshal(data []byte, v interface{}) error {
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return json.Unmarshal(data, v)
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}
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// NewEncoder implements Interface
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func (StdJSON) NewEncoder(writer io.Writer) Encoder {
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return json.NewEncoder(writer)
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}
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// NewDecoder implements Interface
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func (StdJSON) NewDecoder(reader io.Reader) Decoder {
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return json.NewDecoder(reader)
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}
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// Indent implements Interface
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func (StdJSON) Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
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return json.Indent(dst, src, prefix, indent)
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}
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// JSONiter implements Interface via jsoniter
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type JSONiter struct {
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jsoniter.API
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}
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// Marshal implements Interface
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func (j JSONiter) Marshal(v interface{}) ([]byte, error) {
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return j.API.Marshal(v)
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}
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// Unmarshal implements Interface
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func (j JSONiter) Unmarshal(data []byte, v interface{}) error {
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return j.API.Unmarshal(data, v)
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}
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// NewEncoder implements Interface
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func (j JSONiter) NewEncoder(writer io.Writer) Encoder {
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return j.API.NewEncoder(writer)
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}
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// NewDecoder implements Interface
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func (j JSONiter) NewDecoder(reader io.Reader) Decoder {
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return j.API.NewDecoder(reader)
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}
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// Indent implements Interface, since jsoniter don't support Indent, just use encoding/json's
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func (j JSONiter) Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
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return json.Indent(dst, src, prefix, indent)
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}
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// Marshal converts object as bytes
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func Marshal(v interface{}) ([]byte, error) {
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return DefaultJSONHandler.Marshal(v)
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}
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// Unmarshal decodes object from bytes
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func Unmarshal(data []byte, v interface{}) error {
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return DefaultJSONHandler.Unmarshal(data, v)
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}
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// NewEncoder creates an encoder to write objects to writer
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func NewEncoder(writer io.Writer) Encoder {
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return DefaultJSONHandler.NewEncoder(writer)
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}
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// NewDecoder creates a decoder to read objects from reader
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func NewDecoder(reader io.Reader) Decoder {
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return DefaultJSONHandler.NewDecoder(reader)
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}
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// Indent appends to dst an indented form of the JSON-encoded src.
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func Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
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return DefaultJSONHandler.Indent(dst, src, prefix, indent)
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}
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// MarshalIndent copied from encoding/json
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func MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) {
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b, err := Marshal(v)
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if err != nil {
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return nil, err
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}
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var buf bytes.Buffer
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err = Indent(&buf, b, prefix, indent)
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if err != nil {
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return nil, err
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}
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return buf.Bytes(), nil
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}
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// Valid proxy to json.Valid
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func Valid(data []byte) bool {
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return json.Valid(data)
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}
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