forked from redpanda-data/connect
-
Notifications
You must be signed in to change notification settings - Fork 1
/
util.go
109 lines (97 loc) · 3.37 KB
/
util.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
// Copyright (c) 2018 Ashley Jeffs
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package message
import (
"encoding/json"
"fmt"
"github.com/Jeffail/benthos/lib/message/metadata"
"github.com/Jeffail/benthos/lib/types"
)
//------------------------------------------------------------------------------
// SetAllMetadata sets the metadata of all message parts to match a provided
// metadata implementation.
func SetAllMetadata(m types.Message, meta types.Metadata) {
lazy := metadata.LazyCopy(meta)
m.Iter(func(i int, p types.Part) error {
p.SetMetadata(lazy)
return nil
})
}
// GetAllBytes returns a 2D byte slice representing the raw byte content of the
// parts of a message.
func GetAllBytes(m types.Message) [][]byte {
if m.Len() == 0 {
return nil
}
parts := make([][]byte, m.Len())
m.Iter(func(i int, p types.Part) error {
parts[i] = p.Get()
return nil
})
return parts
}
//------------------------------------------------------------------------------
func cloneMap(oldMap map[string]interface{}) (map[string]interface{}, error) {
var err error
newMap := make(map[string]interface{}, len(oldMap))
for k, v := range oldMap {
if newMap[k], err = cloneGeneric(v); err != nil {
return nil, err
}
}
return newMap, nil
}
func cloneCheekyMap(oldMap map[interface{}]interface{}) (map[interface{}]interface{}, error) {
var err error
newMap := make(map[interface{}]interface{}, len(oldMap))
for k, v := range oldMap {
if newMap[k], err = cloneGeneric(v); err != nil {
return nil, err
}
}
return newMap, nil
}
func cloneSlice(oldSlice []interface{}) ([]interface{}, error) {
var err error
newSlice := make([]interface{}, len(oldSlice))
for i, v := range oldSlice {
if newSlice[i], err = cloneGeneric(v); err != nil {
return nil, err
}
}
return newSlice, nil
}
// cloneGeneric is a utility function that recursively copies a generic
// structure usually resulting from a JSON parse.
func cloneGeneric(root interface{}) (interface{}, error) {
switch t := root.(type) {
case map[string]interface{}:
return cloneMap(t)
case map[interface{}]interface{}:
return cloneCheekyMap(t)
case []interface{}:
return cloneSlice(t)
case string, json.Number, int, int64, float64, bool, json.RawMessage:
return t, nil
default:
return nil, fmt.Errorf("unrecognised type: %T", t)
}
}
//------------------------------------------------------------------------------