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* named tracer prototype * rename Manager to Provider. * fix compile error after merge. * rename Tracer method to GetTracer * provider with options. * update test. * cleanup make circl-ci * remove global config. * some cleanup. * use provider for bridge * update propagation test. * update examples and plugins. * remove GlobalTracer methods. * fix review comments. * some more cleanup. * remove unnecessary getTracer call in benchmark test.
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// Copyright 2019, OpenTelemetry 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. | ||
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package foo | ||
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import ( | ||
"context" | ||
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"go.opentelemetry.io/api/key" | ||
"go.opentelemetry.io/api/trace" | ||
) | ||
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var ( | ||
lemonsKey = key.New("ex.com/lemons") | ||
) | ||
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// SubOperation is an example to demonstrate the use of named tracer. | ||
// It creates a named tracer with its package path. | ||
func SubOperation(ctx context.Context) error { | ||
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// Using global provider. Alternative is to have application provide a getter | ||
// for its component to get the instance of the provider. | ||
tr := trace.GlobalProvider().GetTracer("example/namedtracer/foo") | ||
return tr.WithSpan( | ||
ctx, | ||
"Sub operation...", | ||
func(ctx context.Context) error { | ||
trace.CurrentSpan(ctx).SetAttribute(lemonsKey.String("five")) | ||
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trace.CurrentSpan(ctx).AddEvent(ctx, "Sub span event") | ||
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return nil | ||
}, | ||
) | ||
} |
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Original file line number | Diff line number | Diff line change |
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module go.opentelemetry.io/example/namedtracer | ||
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go 1.12 | ||
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replace go.opentelemetry.io => ../.. | ||
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require go.opentelemetry.io v0.0.0-00010101000000-000000000000 |
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