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e978c71b7c
Additionally this PR also supports multi-platform builds to avoid cross platform build issues.
76 lines
2.2 KiB
Go
76 lines
2.2 KiB
Go
/*
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* MinIO Client (C) 2015 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Package httptracer implements http tracing functionality
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package httptracer
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import (
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"errors"
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"net/http"
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"time"
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"github.com/minio/mc/pkg/console"
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)
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// HTTPTracer provides callback hook mechanism for HTTP transport.
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type HTTPTracer interface {
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Request(req *http.Request) error
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Response(res *http.Response) error
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}
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// RoundTripTrace interposes HTTP transport requests and respsonses using HTTPTracer hooks
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type RoundTripTrace struct {
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Trace HTTPTracer // User provides callback methods
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Transport http.RoundTripper // HTTP transport that needs to be intercepted
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}
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// RoundTrip executes user provided request and response hooks for each HTTP call.
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func (t RoundTripTrace) RoundTrip(req *http.Request) (res *http.Response, err error) {
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timeStamp := time.Now()
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if t.Transport == nil {
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return nil, errors.New("Invalid Argument")
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}
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res, err = t.Transport.RoundTrip(req)
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if err != nil {
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return res, err
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}
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if t.Trace != nil {
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err = t.Trace.Request(req)
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if err != nil {
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return nil, err
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}
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err = t.Trace.Response(res)
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if err != nil {
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return nil, err
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}
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console.Debugln("Response Time: ", time.Since(timeStamp).String()+"\n")
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}
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return res, err
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}
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// GetNewTraceTransport returns a traceable transport
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//
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// Takes first argument a custom tracer which implements Response, Request() conforming to HTTPTracer interface.
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// Another argument can be a default transport or a custom http.RoundTripper implementation
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func GetNewTraceTransport(trace HTTPTracer, transport http.RoundTripper) RoundTripTrace {
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return RoundTripTrace{Trace: trace,
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Transport: transport}
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}
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