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[chore] Share encoding overrides #35029

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merged 1 commit into from
Sep 5, 2024
Merged

[chore] Share encoding overrides #35029

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11 changes: 10 additions & 1 deletion internal/coreinternal/textutils/encoding.go
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Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,7 @@ var encodingOverrides = map[string]encoding.Encoding{
}

func lookupEncoding(enc string) (encoding.Encoding, error) {
if e, ok := encodingOverrides[strings.ToLower(enc)]; ok {
if e, ok := EncodingOverridesMap.Get(strings.ToLower(enc)); ok {
return e, nil
}
e, err := ianaindex.IANA.Encoding(enc)
Expand All @@ -94,3 +94,12 @@ func IsNop(enc string) bool {
}
return e == encoding.Nop
}

var EncodingOverridesMap = encodingOverridesMap{}

type encodingOverridesMap struct{}

func (e *encodingOverridesMap) Get(key string) (encoding.Encoding, bool) {
v, ok := encodingOverrides[key]
return v, ok
}
15 changes: 2 additions & 13 deletions pkg/ottl/ottlfuncs/func_decode.go
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Original file line number Diff line number Diff line change
Expand Up @@ -12,8 +12,8 @@ import (
"go.opentelemetry.io/collector/pdata/pcommon"
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/ianaindex"
"golang.org/x/text/encoding/unicode"

"github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal/textutils"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl"
)

Expand Down Expand Up @@ -87,7 +87,7 @@ func Decode[K any](target ottl.Getter[K], encoding string) (ottl.ExprFunc[K], er
}

func getEncoding(encoding string) (encoding.Encoding, error) {
if e, ok := encodingOverrides[strings.ToLower(encoding)]; ok {
if e, ok := textutils.EncodingOverridesMap.Get(strings.ToLower(encoding)); ok {
return e, nil
}
e, err := ianaindex.IANA.Encoding(encoding)
Expand All @@ -101,14 +101,3 @@ func getEncoding(encoding string) (encoding.Encoding, error) {
}
return e, nil
}

var encodingOverrides = map[string]encoding.Encoding{
"": unicode.UTF8,
"nop": encoding.Nop,
"ascii": unicode.UTF8,
"us-ascii": unicode.UTF8,
"utf8": unicode.UTF8,
"utf-8": unicode.UTF8,
"utf16": unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM),
"utf-16": unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM),
}
16 changes: 3 additions & 13 deletions pkg/stanza/decode/decode.go
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Original file line number Diff line number Diff line change
Expand Up @@ -10,8 +10,9 @@ import (

"golang.org/x/text/encoding"
"golang.org/x/text/encoding/ianaindex"
"golang.org/x/text/encoding/unicode"
"golang.org/x/text/transform"

"github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal/textutils"
)

type Decoder struct {
Expand Down Expand Up @@ -46,20 +47,9 @@ func (d *Decoder) Decode(msgBuf []byte) ([]byte, error) {
}
}

var encodingOverrides = map[string]encoding.Encoding{
"": unicode.UTF8,
"nop": encoding.Nop,
"ascii": unicode.UTF8,
"us-ascii": unicode.UTF8,
"utf8": unicode.UTF8,
"utf-8": unicode.UTF8,
"utf16": unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM),
"utf-16": unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM),
}

// LookupEncoding attempts to match the string name provided with a character set encoding.
func LookupEncoding(enc string) (encoding.Encoding, error) {
if e, ok := encodingOverrides[strings.ToLower(enc)]; ok {
if e, ok := textutils.EncodingOverridesMap.Get(strings.ToLower(enc)); ok {
return e, nil
}
e, err := ianaindex.IANA.Encoding(enc)
Expand Down