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bring back processor.Builder and deprecate it
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| // Copyright The OpenTelemetry Authors | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
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| package processor // import "go.opentelemetry.io/collector/processor" | ||
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| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
|
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| "go.uber.org/zap" | ||
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| "go.opentelemetry.io/collector/component" | ||
| "go.opentelemetry.io/collector/consumer" | ||
| ) | ||
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| var errNilNextConsumer = errors.New("nil next Consumer") | ||
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| // Builder processor is a helper struct that given a set of Configs and Factories helps with creating processors. | ||
| type Builder struct { | ||
| cfgs map[component.ID]component.Config | ||
| factories map[component.Type]Factory | ||
| } | ||
|
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| // NewBuilder creates a new processor.Builder to help with creating components form a set of configs and factories. | ||
| func NewBuilder(cfgs map[component.ID]component.Config, factories map[component.Type]Factory) *Builder { | ||
| return &Builder{cfgs: cfgs, factories: factories} | ||
| } | ||
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| // CreateTraces creates a Traces processor based on the settings and config. | ||
| func (b *Builder) CreateTraces(ctx context.Context, set Settings, next consumer.Traces) (Traces, error) { | ||
| if next == nil { | ||
| return nil, errNilNextConsumer | ||
| } | ||
| cfg, existsCfg := b.cfgs[set.ID] | ||
| if !existsCfg { | ||
| return nil, fmt.Errorf("processor %q is not configured", set.ID) | ||
| } | ||
|
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| f, existsFactory := b.factories[set.ID.Type()] | ||
| if !existsFactory { | ||
| return nil, fmt.Errorf("processor factory not available for: %q", set.ID) | ||
| } | ||
|
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| logStabilityLevel(set.Logger, f.TracesProcessorStability()) | ||
| return f.CreateTracesProcessor(ctx, set, cfg, next) | ||
| } | ||
|
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| // CreateMetrics creates a Metrics processor based on the settings and config. | ||
| func (b *Builder) CreateMetrics(ctx context.Context, set Settings, next consumer.Metrics) (Metrics, error) { | ||
| if next == nil { | ||
| return nil, errNilNextConsumer | ||
| } | ||
| cfg, existsCfg := b.cfgs[set.ID] | ||
| if !existsCfg { | ||
| return nil, fmt.Errorf("processor %q is not configured", set.ID) | ||
| } | ||
|
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| f, existsFactory := b.factories[set.ID.Type()] | ||
| if !existsFactory { | ||
| return nil, fmt.Errorf("processor factory not available for: %q", set.ID) | ||
| } | ||
|
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| logStabilityLevel(set.Logger, f.MetricsProcessorStability()) | ||
| return f.CreateMetricsProcessor(ctx, set, cfg, next) | ||
| } | ||
|
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| // CreateLogs creates a Logs processor based on the settings and config. | ||
| func (b *Builder) CreateLogs(ctx context.Context, set Settings, next consumer.Logs) (Logs, error) { | ||
| if next == nil { | ||
| return nil, errNilNextConsumer | ||
| } | ||
| cfg, existsCfg := b.cfgs[set.ID] | ||
| if !existsCfg { | ||
| return nil, fmt.Errorf("processor %q is not configured", set.ID) | ||
| } | ||
|
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||
| f, existsFactory := b.factories[set.ID.Type()] | ||
| if !existsFactory { | ||
| return nil, fmt.Errorf("processor factory not available for: %q", set.ID) | ||
| } | ||
|
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| logStabilityLevel(set.Logger, f.LogsProcessorStability()) | ||
| return f.CreateLogsProcessor(ctx, set, cfg, next) | ||
| } | ||
|
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| func (b *Builder) Factory(componentType component.Type) component.Factory { | ||
| return b.factories[componentType] | ||
| } | ||
|
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| // logStabilityLevel logs the stability level of a component. The log level is set to info for | ||
| // undefined, unmaintained, deprecated and development. The log level is set to debug | ||
| // for alpha, beta and stable. | ||
| func logStabilityLevel(logger *zap.Logger, sl component.StabilityLevel) { | ||
| if sl >= component.StabilityLevelAlpha { | ||
| logger.Debug(sl.LogMessage()) | ||
| } else { | ||
| logger.Info(sl.LogMessage()) | ||
| } | ||
| } |
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