First Commit of Voltha-Go-Controller from Radisys
Change-Id: I8e2e908e7ab09a4fe3d86849da18b6d69dcf4ab0
diff --git a/vendor/github.com/uber/jaeger-lib/LICENSE b/vendor/github.com/uber/jaeger-lib/LICENSE
new file mode 100644
index 0000000..261eeb9
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/LICENSE
@@ -0,0 +1,201 @@
+ Apache License
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+ http://www.apache.org/licenses/
+
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+ Unless required by applicable law or agreed to in writing, software
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diff --git a/vendor/github.com/uber/jaeger-lib/metrics/counter.go b/vendor/github.com/uber/jaeger-lib/metrics/counter.go
new file mode 100644
index 0000000..2a6a43e
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/counter.go
@@ -0,0 +1,28 @@
+// 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 metrics
+
+// Counter tracks the number of times an event has occurred
+type Counter interface {
+ // Inc adds the given value to the counter.
+ Inc(int64)
+}
+
+// NullCounter counter that does nothing
+var NullCounter Counter = nullCounter{}
+
+type nullCounter struct{}
+
+func (nullCounter) Inc(int64) {}
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/factory.go b/vendor/github.com/uber/jaeger-lib/metrics/factory.go
new file mode 100644
index 0000000..0ead061
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/factory.go
@@ -0,0 +1,78 @@
+// 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 metrics
+
+import (
+ "time"
+)
+
+// NSOptions defines the name and tags map associated with a factory namespace
+type NSOptions struct {
+ Name string
+ Tags map[string]string
+}
+
+// Options defines the information associated with a metric
+type Options struct {
+ Name string
+ Tags map[string]string
+ Help string
+}
+
+// TimerOptions defines the information associated with a metric
+type TimerOptions struct {
+ Name string
+ Tags map[string]string
+ Help string
+ Buckets []time.Duration
+}
+
+// HistogramOptions defines the information associated with a metric
+type HistogramOptions struct {
+ Name string
+ Tags map[string]string
+ Help string
+ Buckets []float64
+}
+
+// Factory creates new metrics
+type Factory interface {
+ Counter(metric Options) Counter
+ Timer(metric TimerOptions) Timer
+ Gauge(metric Options) Gauge
+ Histogram(metric HistogramOptions) Histogram
+
+ // Namespace returns a nested metrics factory.
+ Namespace(scope NSOptions) Factory
+}
+
+// NullFactory is a metrics factory that returns NullCounter, NullTimer, and NullGauge.
+var NullFactory Factory = nullFactory{}
+
+type nullFactory struct{}
+
+func (nullFactory) Counter(options Options) Counter {
+ return NullCounter
+}
+func (nullFactory) Timer(options TimerOptions) Timer {
+ return NullTimer
+}
+func (nullFactory) Gauge(options Options) Gauge {
+ return NullGauge
+}
+func (nullFactory) Histogram(options HistogramOptions) Histogram {
+ return NullHistogram
+}
+func (nullFactory) Namespace(scope NSOptions) Factory { return NullFactory }
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/gauge.go b/vendor/github.com/uber/jaeger-lib/metrics/gauge.go
new file mode 100644
index 0000000..3c60639
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/gauge.go
@@ -0,0 +1,28 @@
+// 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 metrics
+
+// Gauge returns instantaneous measurements of something as an int64 value
+type Gauge interface {
+ // Update the gauge to the value passed in.
+ Update(int64)
+}
+
+// NullGauge gauge that does nothing
+var NullGauge Gauge = nullGauge{}
+
+type nullGauge struct{}
+
+func (nullGauge) Update(int64) {}
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/histogram.go b/vendor/github.com/uber/jaeger-lib/metrics/histogram.go
new file mode 100644
index 0000000..d3bd617
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/histogram.go
@@ -0,0 +1,28 @@
+// Copyright (c) 2018 The Jaeger Authors
+//
+// 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 metrics
+
+// Histogram that keeps track of a distribution of values.
+type Histogram interface {
+ // Records the value passed in.
+ Record(float64)
+}
+
+// NullHistogram that does nothing
+var NullHistogram Histogram = nullHistogram{}
+
+type nullHistogram struct{}
+
+func (nullHistogram) Record(float64) {}
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/keys.go b/vendor/github.com/uber/jaeger-lib/metrics/keys.go
new file mode 100644
index 0000000..c24445a
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/keys.go
@@ -0,0 +1,35 @@
+// 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 metrics
+
+import (
+ "sort"
+)
+
+// GetKey converts name+tags into a single string of the form
+// "name|tag1=value1|...|tagN=valueN", where tag names are
+// sorted alphabetically.
+func GetKey(name string, tags map[string]string, tagsSep string, tagKVSep string) string {
+ keys := make([]string, 0, len(tags))
+ for k := range tags {
+ keys = append(keys, k)
+ }
+ sort.Strings(keys)
+ key := name
+ for _, k := range keys {
+ key = key + tagsSep + k + tagKVSep + tags[k]
+ }
+ return key
+}
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/metrics.go b/vendor/github.com/uber/jaeger-lib/metrics/metrics.go
new file mode 100644
index 0000000..0df0c66
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/metrics.go
@@ -0,0 +1,137 @@
+// 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 metrics
+
+import (
+ "fmt"
+ "reflect"
+ "strconv"
+ "strings"
+)
+
+// MustInit initializes the passed in metrics and initializes its fields using the passed in factory.
+//
+// It uses reflection to initialize a struct containing metrics fields
+// by assigning new Counter/Gauge/Timer values with the metric name retrieved
+// from the `metric` tag and stats tags retrieved from the `tags` tag.
+//
+// Note: all fields of the struct must be exported, have a `metric` tag, and be
+// of type Counter or Gauge or Timer.
+//
+// Errors during Init lead to a panic.
+func MustInit(metrics interface{}, factory Factory, globalTags map[string]string) {
+ if err := Init(metrics, factory, globalTags); err != nil {
+ panic(err.Error())
+ }
+}
+
+// Init does the same as MustInit, but returns an error instead of
+// panicking.
+func Init(m interface{}, factory Factory, globalTags map[string]string) error {
+ // Allow user to opt out of reporting metrics by passing in nil.
+ if factory == nil {
+ factory = NullFactory
+ }
+
+ counterPtrType := reflect.TypeOf((*Counter)(nil)).Elem()
+ gaugePtrType := reflect.TypeOf((*Gauge)(nil)).Elem()
+ timerPtrType := reflect.TypeOf((*Timer)(nil)).Elem()
+ histogramPtrType := reflect.TypeOf((*Histogram)(nil)).Elem()
+
+ v := reflect.ValueOf(m).Elem()
+ t := v.Type()
+ for i := 0; i < t.NumField(); i++ {
+ tags := make(map[string]string)
+ for k, v := range globalTags {
+ tags[k] = v
+ }
+ var buckets []float64
+ field := t.Field(i)
+ metric := field.Tag.Get("metric")
+ if metric == "" {
+ return fmt.Errorf("Field %s is missing a tag 'metric'", field.Name)
+ }
+ if tagString := field.Tag.Get("tags"); tagString != "" {
+ tagPairs := strings.Split(tagString, ",")
+ for _, tagPair := range tagPairs {
+ tag := strings.Split(tagPair, "=")
+ if len(tag) != 2 {
+ return fmt.Errorf(
+ "Field [%s]: Tag [%s] is not of the form key=value in 'tags' string [%s]",
+ field.Name, tagPair, tagString)
+ }
+ tags[tag[0]] = tag[1]
+ }
+ }
+ if bucketString := field.Tag.Get("buckets"); bucketString != "" {
+ if field.Type.AssignableTo(timerPtrType) {
+ // TODO: Parse timer duration buckets
+ return fmt.Errorf(
+ "Field [%s]: Buckets are not currently initialized for timer metrics",
+ field.Name)
+ } else if field.Type.AssignableTo(histogramPtrType) {
+ bucketValues := strings.Split(bucketString, ",")
+ for _, bucket := range bucketValues {
+ b, err := strconv.ParseFloat(bucket, 64)
+ if err != nil {
+ return fmt.Errorf(
+ "Field [%s]: Bucket [%s] could not be converted to float64 in 'buckets' string [%s]",
+ field.Name, bucket, bucketString)
+ }
+ buckets = append(buckets, b)
+ }
+ } else {
+ return fmt.Errorf(
+ "Field [%s]: Buckets should only be defined for Timer and Histogram metric types",
+ field.Name)
+ }
+ }
+ help := field.Tag.Get("help")
+ var obj interface{}
+ if field.Type.AssignableTo(counterPtrType) {
+ obj = factory.Counter(Options{
+ Name: metric,
+ Tags: tags,
+ Help: help,
+ })
+ } else if field.Type.AssignableTo(gaugePtrType) {
+ obj = factory.Gauge(Options{
+ Name: metric,
+ Tags: tags,
+ Help: help,
+ })
+ } else if field.Type.AssignableTo(timerPtrType) {
+ // TODO: Add buckets once parsed (see TODO above)
+ obj = factory.Timer(TimerOptions{
+ Name: metric,
+ Tags: tags,
+ Help: help,
+ })
+ } else if field.Type.AssignableTo(histogramPtrType) {
+ obj = factory.Histogram(HistogramOptions{
+ Name: metric,
+ Tags: tags,
+ Help: help,
+ Buckets: buckets,
+ })
+ } else {
+ return fmt.Errorf(
+ "Field %s is not a pointer to timer, gauge, or counter",
+ field.Name)
+ }
+ v.Field(i).Set(reflect.ValueOf(obj))
+ }
+ return nil
+}
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/stopwatch.go b/vendor/github.com/uber/jaeger-lib/metrics/stopwatch.go
new file mode 100644
index 0000000..4a8abdb
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/stopwatch.go
@@ -0,0 +1,43 @@
+// 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 metrics
+
+import (
+ "time"
+)
+
+// StartStopwatch begins recording the executing time of an event, returning
+// a Stopwatch that should be used to stop the recording the time for
+// that event. Multiple events can be occurring simultaneously each
+// represented by different active Stopwatches
+func StartStopwatch(timer Timer) Stopwatch {
+ return Stopwatch{t: timer, start: time.Now()}
+}
+
+// A Stopwatch tracks the execution time of a specific event
+type Stopwatch struct {
+ t Timer
+ start time.Time
+}
+
+// Stop stops executing of the stopwatch and records the amount of elapsed time
+func (s Stopwatch) Stop() {
+ s.t.Record(s.ElapsedTime())
+}
+
+// ElapsedTime returns the amount of elapsed time (in time.Duration)
+func (s Stopwatch) ElapsedTime() time.Duration {
+ return time.Since(s.start)
+}
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/timer.go b/vendor/github.com/uber/jaeger-lib/metrics/timer.go
new file mode 100644
index 0000000..e18d222
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/timer.go
@@ -0,0 +1,33 @@
+// 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 metrics
+
+import (
+ "time"
+)
+
+// Timer accumulates observations about how long some operation took,
+// and also maintains a historgam of percentiles.
+type Timer interface {
+ // Records the time passed in.
+ Record(time.Duration)
+}
+
+// NullTimer timer that does nothing
+var NullTimer Timer = nullTimer{}
+
+type nullTimer struct{}
+
+func (nullTimer) Record(time.Duration) {}