Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
* OTLP metrics gRPC exporter * add newline * address comments
- Loading branch information
1 parent
64b640c
commit b33edaa
Showing
60 changed files
with
6,755 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| // Copyright The 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. | ||
|
|
||
| package otlpmetric // import "go.opentelemetry.io/otel/exporters/otlp/otlpmetric" | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| metricpb "go.opentelemetry.io/proto/otlp/metrics/v1" | ||
| ) | ||
|
|
||
| // Client manages connections to the collector, handles the | ||
| // transformation of data into wire format, and the transmission of that | ||
| // data to the collector. | ||
| type Client interface { | ||
| // Start should establish connection(s) to endpoint(s). It is | ||
| // called just once by the exporter, so the implementation | ||
| // does not need to worry about idempotence and locking. | ||
| Start(ctx context.Context) error | ||
| // Stop should close the connections. The function is called | ||
| // only once by the exporter, so the implementation does not | ||
| // need to worry about idempotence, but it may be called | ||
| // concurrently with UploadMetrics, so proper | ||
| // locking is required. The function serves as a | ||
| // synchronization point - after the function returns, the | ||
| // process of closing connections is assumed to be finished. | ||
| Stop(ctx context.Context) error | ||
| // UploadMetrics should transform the passed metrics to the | ||
| // wire format and send it to the collector. May be called | ||
| // concurrently. | ||
| UploadMetrics(ctx context.Context, protoMetrics []*metricpb.ResourceMetrics) error | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| // Copyright The 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. | ||
|
|
||
| package otlpmetric | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "sync" | ||
|
|
||
| "go.opentelemetry.io/otel/exporters/otlp/otlpmetric/internal/metrictransform" | ||
| "go.opentelemetry.io/otel/metric" | ||
| metricsdk "go.opentelemetry.io/otel/sdk/export/metric" | ||
| "go.opentelemetry.io/otel/sdk/export/metric/aggregation" | ||
| ) | ||
|
|
||
| var ( | ||
| errAlreadyStarted = errors.New("already started") | ||
| ) | ||
|
|
||
| // Exporter exports metrics data in the OTLP wire format. | ||
| type Exporter struct { | ||
| client Client | ||
| exportKindSelector metricsdk.ExportKindSelector | ||
|
|
||
| mu sync.RWMutex | ||
| started bool | ||
|
|
||
| startOnce sync.Once | ||
| stopOnce sync.Once | ||
| } | ||
|
|
||
| // Export exports a batch of metrics. | ||
| func (e *Exporter) Export(ctx context.Context, checkpointSet metricsdk.CheckpointSet) error { | ||
| rms, err := metrictransform.CheckpointSet(ctx, e, checkpointSet, 1) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if len(rms) == 0 { | ||
| return nil | ||
| } | ||
|
|
||
| return e.client.UploadMetrics(ctx, rms) | ||
| } | ||
|
|
||
| // Start establishes a connection to the receiving endpoint. | ||
| func (e *Exporter) Start(ctx context.Context) error { | ||
| var err = errAlreadyStarted | ||
| e.startOnce.Do(func() { | ||
| e.mu.Lock() | ||
| e.started = true | ||
| e.mu.Unlock() | ||
| err = e.client.Start(ctx) | ||
| }) | ||
|
|
||
| return err | ||
| } | ||
|
|
||
| // Shutdown flushes all exports and closes all connections to the receiving endpoint. | ||
| func (e *Exporter) Shutdown(ctx context.Context) error { | ||
|
|
||
| e.mu.RLock() | ||
| started := e.started | ||
| e.mu.RUnlock() | ||
|
|
||
| if !started { | ||
| return nil | ||
| } | ||
|
|
||
| var err error | ||
|
|
||
| e.stopOnce.Do(func() { | ||
| err = e.client.Stop(ctx) | ||
| e.mu.Lock() | ||
| e.started = false | ||
| e.mu.Unlock() | ||
| }) | ||
|
|
||
| return err | ||
| } | ||
|
|
||
| func (e *Exporter) ExportKindFor(descriptor *metric.Descriptor, aggregatorKind aggregation.Kind) metricsdk.ExportKind { | ||
| return e.exportKindSelector.ExportKindFor(descriptor, aggregatorKind) | ||
| } | ||
|
|
||
| var _ metricsdk.Exporter = (*Exporter)(nil) | ||
|
|
||
| // New constructs a new Exporter and starts it. | ||
| func New(ctx context.Context, client Client, opts ...Option) (*Exporter, error) { | ||
| exp := NewUnstarted(client, opts...) | ||
| if err := exp.Start(ctx); err != nil { | ||
| return nil, err | ||
| } | ||
| return exp, nil | ||
| } | ||
|
|
||
| // NewUnstarted constructs a new Exporter and does not start it. | ||
| func NewUnstarted(client Client, opts ...Option) *Exporter { | ||
| cfg := config{ | ||
| // Note: the default ExportKindSelector is specified | ||
| // as Cumulative: | ||
| // https://github.com/open-telemetry/opentelemetry-specification/issues/731 | ||
| exportKindSelector: metricsdk.CumulativeExportKindSelector(), | ||
| } | ||
|
|
||
| for _, opt := range opts { | ||
| opt.apply(&cfg) | ||
| } | ||
|
|
||
| e := &Exporter{ | ||
| client: client, | ||
| exportKindSelector: cfg.exportKindSelector, | ||
| } | ||
|
|
||
| return e | ||
| } |
Oops, something went wrong.