93 lines
3.2 KiB
Go
93 lines
3.2 KiB
Go
// Copyright The 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 trace // import "go.opentelemetry.io/otel/sdk/export/trace"
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import (
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"context"
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"time"
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"google.golang.org/grpc/codes"
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apitrace "go.opentelemetry.io/otel/api/trace"
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"go.opentelemetry.io/otel/label"
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"go.opentelemetry.io/otel/sdk/instrumentation"
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"go.opentelemetry.io/otel/sdk/resource"
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)
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// SpanExporter handles the delivery of SpanData to external receivers. This is
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// the final component in the trace export pipeline.
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type SpanExporter interface {
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// ExportSpans exports a batch of SpanData.
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//
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// This function is called synchronously, so there is no concurrency
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// safety requirement. However, due to the synchronous calling pattern,
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// it is critical that all timeouts and cancellations contained in the
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// passed context must be honored.
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//
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// Any retry logic must be contained in this function. The SDK that
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// calls this function will not implement any retry logic. All errors
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// returned by this function are considered unrecoverable and will be
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// reported to a configured error Handler.
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ExportSpans(context.Context, []*SpanData) error
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// Shutdown notifies the exporter of a pending halt to operations. The
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// exporter is expected to preform any cleanup or synchronization it
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// requires while honoring all timeouts and cancellations contained in
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// the passed context.
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Shutdown(context.Context) error
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}
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// SpanData contains all the information collected by a completed span.
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type SpanData struct {
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SpanContext apitrace.SpanContext
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ParentSpanID apitrace.SpanID
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SpanKind apitrace.SpanKind
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Name string
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StartTime time.Time
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// The wall clock time of EndTime will be adjusted to always be offset
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// from StartTime by the duration of the span.
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EndTime time.Time
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Attributes []label.KeyValue
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MessageEvents []Event
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Links []apitrace.Link
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StatusCode codes.Code
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StatusMessage string
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HasRemoteParent bool
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DroppedAttributeCount int
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DroppedMessageEventCount int
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DroppedLinkCount int
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// ChildSpanCount holds the number of child span created for this span.
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ChildSpanCount int
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// Resource contains attributes representing an entity that produced this span.
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Resource *resource.Resource
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// InstrumentationLibrary defines the instrumentation library used to
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// provide instrumentation.
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InstrumentationLibrary instrumentation.Library
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}
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// Event is thing that happened during a Span's lifetime.
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type Event struct {
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// Name is the name of this event
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Name string
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// Attributes describe the aspects of the event.
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Attributes []label.KeyValue
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// Time is the time at which this event was recorded.
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Time time.Time
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}
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