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// 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.
//
// See [FilterProcessor] for information about how a Processor can support filtering.
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.
//
// The SDK invokes the processors sequentially in the same order as
// they were registered using WithProcessor.
// Implementations may synchronously modify the record so that the changes
// are visible in the next registered processor.
// Notice that Record is not concurrent safe. Therefore, asynchronous
// processing may cause race conditions. Use Record.Clone
// to create a copy that shares no state with the original.
OnEmit(ctx context.Context, record *Record) error
// 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
}
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