[VOL-3199] Added support for dynamic enable/disable of Trace Publishing for running components
Change-Id: Iddf7d04e4795a3c64abca216e9f106953c76601e
diff --git a/vendor/github.com/uber/jaeger-client-go/sampler_remote_options.go b/vendor/github.com/uber/jaeger-client-go/sampler_remote_options.go
new file mode 100644
index 0000000..e4a6108
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-client-go/sampler_remote_options.go
@@ -0,0 +1,162 @@
+// Copyright (c) 2017 Uber Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package jaeger
+
+import (
+ "time"
+
+ "github.com/uber/jaeger-client-go/log"
+)
+
+// SamplerOption is a function that sets some option on the sampler
+type SamplerOption func(options *samplerOptions)
+
+// SamplerOptions is a factory for all available SamplerOption's.
+var SamplerOptions SamplerOptionsFactory
+
+// SamplerOptionsFactory is a factory for all available SamplerOption's.
+// The type acts as a namespace for factory functions. It is public to
+// make the functions discoverable via godoc. Recommended to be used
+// via global SamplerOptions variable.
+type SamplerOptionsFactory struct{}
+
+type samplerOptions struct {
+ metrics *Metrics
+ sampler SamplerV2
+ logger log.DebugLogger
+ samplingServerURL string
+ samplingRefreshInterval time.Duration
+ samplingFetcher SamplingStrategyFetcher
+ samplingParser SamplingStrategyParser
+ updaters []SamplerUpdater
+ posParams PerOperationSamplerParams
+}
+
+// Metrics creates a SamplerOption that initializes Metrics on the sampler,
+// which is used to emit statistics.
+func (SamplerOptionsFactory) Metrics(m *Metrics) SamplerOption {
+ return func(o *samplerOptions) {
+ o.metrics = m
+ }
+}
+
+// MaxOperations creates a SamplerOption that sets the maximum number of
+// operations the sampler will keep track of.
+func (SamplerOptionsFactory) MaxOperations(maxOperations int) SamplerOption {
+ return func(o *samplerOptions) {
+ o.posParams.MaxOperations = maxOperations
+ }
+}
+
+// OperationNameLateBinding creates a SamplerOption that sets the respective
+// field in the PerOperationSamplerParams.
+func (SamplerOptionsFactory) OperationNameLateBinding(enable bool) SamplerOption {
+ return func(o *samplerOptions) {
+ o.posParams.OperationNameLateBinding = enable
+ }
+}
+
+// InitialSampler creates a SamplerOption that sets the initial sampler
+// to use before a remote sampler is created and used.
+func (SamplerOptionsFactory) InitialSampler(sampler Sampler) SamplerOption {
+ return func(o *samplerOptions) {
+ o.sampler = samplerV1toV2(sampler)
+ }
+}
+
+// Logger creates a SamplerOption that sets the logger used by the sampler.
+func (SamplerOptionsFactory) Logger(logger Logger) SamplerOption {
+ return func(o *samplerOptions) {
+ o.logger = log.DebugLogAdapter(logger)
+ }
+}
+
+// SamplingServerURL creates a SamplerOption that sets the sampling server url
+// of the local agent that contains the sampling strategies.
+func (SamplerOptionsFactory) SamplingServerURL(samplingServerURL string) SamplerOption {
+ return func(o *samplerOptions) {
+ o.samplingServerURL = samplingServerURL
+ }
+}
+
+// SamplingRefreshInterval creates a SamplerOption that sets how often the
+// sampler will poll local agent for the appropriate sampling strategy.
+func (SamplerOptionsFactory) SamplingRefreshInterval(samplingRefreshInterval time.Duration) SamplerOption {
+ return func(o *samplerOptions) {
+ o.samplingRefreshInterval = samplingRefreshInterval
+ }
+}
+
+// SamplingStrategyFetcher creates a SamplerOption that initializes sampling strategy fetcher.
+func (SamplerOptionsFactory) SamplingStrategyFetcher(fetcher SamplingStrategyFetcher) SamplerOption {
+ return func(o *samplerOptions) {
+ o.samplingFetcher = fetcher
+ }
+}
+
+// SamplingStrategyParser creates a SamplerOption that initializes sampling strategy parser.
+func (SamplerOptionsFactory) SamplingStrategyParser(parser SamplingStrategyParser) SamplerOption {
+ return func(o *samplerOptions) {
+ o.samplingParser = parser
+ }
+}
+
+// Updaters creates a SamplerOption that initializes sampler updaters.
+func (SamplerOptionsFactory) Updaters(updaters ...SamplerUpdater) SamplerOption {
+ return func(o *samplerOptions) {
+ o.updaters = updaters
+ }
+}
+
+func (o *samplerOptions) applyOptionsAndDefaults(opts ...SamplerOption) *samplerOptions {
+ for _, option := range opts {
+ option(o)
+ }
+ if o.sampler == nil {
+ o.sampler = newProbabilisticSampler(0.001)
+ }
+ if o.logger == nil {
+ o.logger = log.NullLogger
+ }
+ if o.samplingServerURL == "" {
+ o.samplingServerURL = DefaultSamplingServerURL
+ }
+ if o.metrics == nil {
+ o.metrics = NewNullMetrics()
+ }
+ if o.samplingRefreshInterval <= 0 {
+ o.samplingRefreshInterval = defaultSamplingRefreshInterval
+ }
+ if o.samplingFetcher == nil {
+ o.samplingFetcher = &httpSamplingStrategyFetcher{
+ serverURL: o.samplingServerURL,
+ logger: o.logger,
+ }
+ }
+ if o.samplingParser == nil {
+ o.samplingParser = new(samplingStrategyParser)
+ }
+ if o.updaters == nil {
+ o.updaters = []SamplerUpdater{
+ &AdaptiveSamplerUpdater{
+ MaxOperations: o.posParams.MaxOperations,
+ OperationNameLateBinding: o.posParams.OperationNameLateBinding,
+ },
+ new(ProbabilisticSamplerUpdater),
+ new(RateLimitingSamplerUpdater),
+ }
+ }
+ return o
+}