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opentelemetry-go/sdk/log/processor.go
Tyler Yahn da047e70ef
Add the Enabled method to the Logger (#5071)
* Add the Enabled method to the Logger

* Add a changelog entry

* Rename enabled.go to min_sev.go

* Remove MinSeverityProcessor

* Document lack of interaction between OnEmit and Enabled

* Update sdk/log/processor.go

---------

Co-authored-by: Robert Pająk <pellared@hotmail.com>
2024-03-15 08:15:44 -07:00

66 lines
2.8 KiB
Go

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package log // import "go.opentelemetry.io/otel/sdk/log"
import (
"context"
)
// Processor handles the processing of log records.
//
// Any of the Processor's methods may be called concurrently with itself
// or with other methods. It is the responsibility of the Processor to manage
// this concurrency.
type Processor interface {
// OnEmit is called when a Record is emitted.
//
// OnEmit will be called independent of Enabled. Implementations need to
// validate the arguments themselves before processing.
//
// Implementation should not interrupt the record processing
// if the context is canceled.
//
// All retry logic must be contained in this function. The SDK does not
// implement any retry logic. All errors returned by this function are
// considered unrecoverable and will be reported to a configured error
// Handler.
//
// Before modifying a Record, the implementation must use Record.Clone
// to create a copy that shares no state with the original.
OnEmit(ctx context.Context, record Record) error
// Enabled returns whether the Processor will process for the given context
// and record.
//
// The passed record is likely to be a partial record with only the
// bridge-relevant information being provided (e.g a record with only the
// Severity set). If a Logger needs more information than is provided, it
// is said to be in an indeterminate state (see below).
//
// The returned value will be true when the Processor will process for the
// provided context and record, and will be false if the Processor will not
// process. The returned value may be true or false in an indeterminate
// state. An implementation should default to returning true for an
// indeterminate state, but may return false if valid reasons in particular
// circumstances exist (e.g. performance, correctness).
//
// Before modifying a Record, the implementation must use Record.Clone
// to create a copy that shares no state with the original.
Enabled(ctx context.Context, record Record) bool
// Shutdown is called when the SDK shuts down. Any cleanup or release of
// resources held by the exporter should be done in this call.
//
// The deadline or cancellation of the passed context must be honored. An
// appropriate error should be returned in these situations.
//
// After Shutdown is called, calls to Export, Shutdown, or ForceFlush
// should perform no operation and return nil error.
Shutdown(ctx context.Context) error
// ForceFlush exports log records to the configured Exporter that have not yet
// been exported.
//
// The deadline or cancellation of the passed context must be honored. An
// appropriate error should be returned in these situations.
ForceFlush(ctx context.Context) error
}