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receiver.go
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receiver.go
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// 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 component
import (
"context"
"go.uber.org/zap"
"go.opentelemetry.io/collector/config"
"go.opentelemetry.io/collector/consumer"
)
// Receiver allows the collector to receive metrics, traces and logs.
type Receiver interface {
Component
}
// A TracesReceiver receives traces.
// Its purpose is to translate data from any format to the collector's internal trace format.
// TracesReceiver feeds a consumer.Traces with data.
//
// For example it could be Zipkin data source which translates Zipkin spans into pdata.Traces.
type TracesReceiver interface {
Receiver
}
// A MetricsReceiver receives metrics.
// Its purpose is to translate data from any format to the collector's internal metrics format.
// MetricsReceiver feeds a consumer.Metrics with data.
//
// For example it could be Prometheus data source which translates Prometheus metrics into pdata.Metrics.
type MetricsReceiver interface {
Receiver
}
// A LogsReceiver receives logs.
// Its purpose is to translate data from any format to the collector's internal logs data format.
// LogsReceiver feeds a consumer.Logs with data.
//
// For example a LogsReceiver can read syslogs and convert them into pdata.Logs.
type LogsReceiver interface {
Receiver
}
// ReceiverCreateParams configures Receiver creators.
type ReceiverCreateParams struct {
// Logger that the factory can use during creation and can pass to the created
// component to be used later as well.
Logger *zap.Logger
// BuildInfo can be used by components for informational purposes
BuildInfo BuildInfo
}
// ReceiverFactory can create TracesReceiver, MetricsReceiver and
// and LogsReceiver. This is the new preferred factory type to create receivers.
type ReceiverFactory interface {
Factory
// CreateDefaultConfig creates the default configuration for the Receiver.
// This method can be called multiple times depending on the pipeline
// configuration and should not cause side-effects that prevent the creation
// of multiple instances of the Receiver.
// The object returned by this method needs to pass the checks implemented by
// 'configcheck.ValidateConfig'. It is recommended to have such check in the
// tests of any implementation of the Factory interface.
CreateDefaultConfig() config.Receiver
// CreateTracesReceiver creates a trace receiver based on this config.
// If the receiver type does not support tracing or if the config is not valid
// error will be returned instead.
CreateTracesReceiver(ctx context.Context, params ReceiverCreateParams,
cfg config.Receiver, nextConsumer consumer.Traces) (TracesReceiver, error)
// CreateMetricsReceiver creates a metrics receiver based on this config.
// If the receiver type does not support metrics or if the config is not valid
// error will be returned instead.
CreateMetricsReceiver(ctx context.Context, params ReceiverCreateParams,
cfg config.Receiver, nextConsumer consumer.Metrics) (MetricsReceiver, error)
// CreateLogsReceiver creates a log receiver based on this config.
// If the receiver type does not support the data type or if the config is not valid
// error will be returned instead.
CreateLogsReceiver(ctx context.Context, params ReceiverCreateParams,
cfg config.Receiver, nextConsumer consumer.Logs) (LogsReceiver, error)
}