mirror of https://github.com/prometheus/prometheus
44 lines
1.5 KiB
Go
44 lines
1.5 KiB
Go
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package runtime
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import (
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"google.golang.org/genproto/googleapis/api/httpbody"
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)
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// SetHTTPBodyMarshaler overwrite the default marshaler with the HTTPBodyMarshaler
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func SetHTTPBodyMarshaler(serveMux *ServeMux) {
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serveMux.marshalers.mimeMap[MIMEWildcard] = &HTTPBodyMarshaler{
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Marshaler: &JSONPb{OrigName: true},
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}
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}
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// HTTPBodyMarshaler is a Marshaler which supports marshaling of a
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// google.api.HttpBody message as the full response body if it is
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// the actual message used as the response. If not, then this will
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// simply fallback to the Marshaler specified as its default Marshaler.
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type HTTPBodyMarshaler struct {
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Marshaler
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}
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// ContentType implementation to keep backwards compatability with marshal interface
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func (h *HTTPBodyMarshaler) ContentType() string {
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return h.ContentTypeFromMessage(nil)
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}
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// ContentTypeFromMessage in case v is a google.api.HttpBody message it returns
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// its specified content type otherwise fall back to the default Marshaler.
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func (h *HTTPBodyMarshaler) ContentTypeFromMessage(v interface{}) string {
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if httpBody, ok := v.(*httpbody.HttpBody); ok {
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return httpBody.GetContentType()
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}
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return h.Marshaler.ContentType()
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}
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// Marshal marshals "v" by returning the body bytes if v is a
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// google.api.HttpBody message, otherwise it falls back to the default Marshaler.
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func (h *HTTPBodyMarshaler) Marshal(v interface{}) ([]byte, error) {
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if httpBody, ok := v.(*httpbody.HttpBody); ok {
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return httpBody.Data, nil
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}
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return h.Marshaler.Marshal(v)
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}
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