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9eaf824398
* add jaeger support, link hot container & req span * adds jaeger support now with FN_JAEGER_URL, there's a simple tutorial in the operating/metrics.md file now and it's pretty easy to get up and running. * links a hot request span to a hot container span. when we change this to sample at a lower ratio we'll need to finagle the hot container span to always sample or something, otherwise we'll hide that info. at least, since we're sampling at 100% for now if this is flipped on, can see freeze/unfreeze etc. if they hit. this is useful for debugging. note that zipkin's exporter does not follow the link at all, hence jaeger... and they're backed by the Cloud Empire now (CNCF) so we'll probably use it anyway. * vendor: add thrift for jaeger
51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package gensupport
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import (
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"net/url"
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"google.golang.org/api/googleapi"
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)
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// URLParams is a simplified replacement for url.Values
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// that safely builds up URL parameters for encoding.
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type URLParams map[string][]string
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// Get returns the first value for the given key, or "".
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func (u URLParams) Get(key string) string {
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vs := u[key]
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if len(vs) == 0 {
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return ""
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}
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return vs[0]
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}
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// Set sets the key to value.
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// It replaces any existing values.
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func (u URLParams) Set(key, value string) {
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u[key] = []string{value}
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}
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// SetMulti sets the key to an array of values.
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// It replaces any existing values.
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// Note that values must not be modified after calling SetMulti
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// so the caller is responsible for making a copy if necessary.
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func (u URLParams) SetMulti(key string, values []string) {
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u[key] = values
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}
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// Encode encodes the values into ``URL encoded'' form
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// ("bar=baz&foo=quux") sorted by key.
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func (u URLParams) Encode() string {
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return url.Values(u).Encode()
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}
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func SetOptions(u URLParams, opts ...googleapi.CallOption) {
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for _, o := range opts {
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u.Set(o.Get())
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}
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}
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