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Code Issues Releases Activity

refactor to fix encoder type bug

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This commit is contained in:
JessonChan 2015-11-10 13:42:10 +08:00
parent 7ccf049a50
commit 39e29caf9b
2 changed files with 16 additions and 12 deletions
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24
acceptencoder/acceptencoder.go
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@ -44,8 +44,8 @@ func WriteBody(encoding string, writer io.Writer, content []byte) (bool, string,
func writeLevel(encoding string, writer io.Writer, reader io.Reader, level int) (bool, string, error) {
var outputWriter io.Writer
var err error
if cf, ok := encodingCompressMap[encoding]; ok {
outputWriter, err = cf(writer, level)
if cf, ok := encoderMap[encoding]; ok {
outputWriter, err = cf.encode(writer, level)
} else {
encoding = ""
outputWriter, err = noneCompress(writer, level)
@ -78,7 +78,6 @@ type q struct {
name string
value float64
}
type compressFunc func(io.Writer, int) (io.Writer, error)
func noneCompress(wr io.Writer, level int) (io.Writer, error) {
return wr, nil
@ -90,12 +89,17 @@ func deflateCompress(wr io.Writer, level int) (io.Writer, error) {
return flate.NewWriter(wr, level)
}
type acceptEncoder struct {
name string
encode func(io.Writer, int) (io.Writer, error)
}
var (
encodingCompressMap = map[string]compressFunc{ // all the other compress methods will ignore
"gzip": gzipCompress,
"deflate": deflateCompress,
"*": gzipCompress, // * means any compress will accept,we prefer gzip
"identity": noneCompress, // identity means none-compress
encoderMap = map[string]acceptEncoder{ // all the other compress methods will ignore
"gzip": acceptEncoder{"gzip", gzipCompress},
"deflate": acceptEncoder{"deflate", deflateCompress},
"*": acceptEncoder{"gzip", gzipCompress}, // * means any compress will accept,we prefer gzip
"identity": acceptEncoder{"", noneCompress}, // identity means none-compress
}
)
@ -125,8 +129,8 @@ func parseEncoding(r *http.Request) string {
}
}
}
if _, ok := encodingCompressMap[lastQ.name]; ok {
return lastQ.name
if cf, ok := encoderMap[lastQ.name]; ok {
return cf.name
} else {
return ""
}

4
acceptencoder/acceptencoder_test.go
View File

@ -36,10 +36,10 @@ func Test_ExtractEncoding(t *testing.T) {
if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": []string{"gzip;q=0,deflate"}}}) != "deflate" {
t.Fail()
}
if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": []string{"deflate;q=0.5,gzip;q=0.5,identity"}}}) != "identity" {
if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": []string{"deflate;q=0.5,gzip;q=0.5,identity"}}}) != "" {
t.Fail()
}
if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": []string{"*"}}}) != "*" {
if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": []string{"*"}}}) != "gzip" {
t.Fail()
}
}