mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-14 10:13:10 +02:00
521a6c40f1
* move event to sdk. * move trace and span implementation to sdk. - also added noop implementation of span and trace. * fix review comments.
91 lines
2.4 KiB
Go
91 lines
2.4 KiB
Go
// Copyright 2019, OpenTelemetry Authors
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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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package main
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import (
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"context"
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"github.com/open-telemetry/opentelemetry-go/api/metric"
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"github.com/open-telemetry/opentelemetry-go/api/stats"
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"github.com/open-telemetry/opentelemetry-go/api/tag"
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"github.com/open-telemetry/opentelemetry-go/api/trace"
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"github.com/open-telemetry/opentelemetry-go/exporter/loader"
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"github.com/open-telemetry/opentelemetry-go/sdk/event"
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)
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var (
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tracer = trace.GlobalTracer().
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WithComponent("example").
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WithResources(
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tag.New("whatevs").String("yesss"),
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)
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fooKey = tag.New("ex.com/foo", tag.WithDescription("A Foo var"))
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barKey = tag.New("ex.com/bar", tag.WithDescription("A Bar var"))
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lemonsKey = tag.New("ex.com/lemons", tag.WithDescription("A Lemons var"))
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anotherKey = tag.New("ex.com/another")
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oneMetric = metric.NewFloat64Gauge("ex.com/one",
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metric.WithKeys(fooKey, barKey, lemonsKey),
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metric.WithDescription("A gauge set to 1.0"),
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)
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measureTwo = tag.NewMeasure("ex.com/two")
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)
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func main() {
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ctx := context.Background()
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ctx = tag.NewContext(ctx,
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tag.Insert(fooKey.String("foo1")),
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tag.Insert(barKey.String("bar1")),
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)
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gauge := oneMetric.Gauge(
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fooKey.Value(ctx),
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barKey.Value(ctx),
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lemonsKey.Int(10),
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)
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err := tracer.WithSpan(ctx, "operation", func(ctx context.Context) error {
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trace.Active(ctx).AddEvent(ctx, event.WithAttr("Nice operation!", tag.New("bogons").Int(100)))
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trace.Active(ctx).SetAttributes(anotherKey.String("yes"))
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gauge.Set(ctx, 1)
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return tracer.WithSpan(
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ctx,
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"Sub operation...",
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func(ctx context.Context) error {
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trace.Active(ctx).SetAttribute(lemonsKey.String("five"))
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trace.Active(ctx).AddEvent(ctx, event.WithString("Format schmormat %d!", 100))
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stats.Record(ctx, measureTwo.M(1.3))
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return nil
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},
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)
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})
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if err != nil {
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panic(err)
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}
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loader.Flush()
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}
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