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[receivercreator] add support for logs and traces (#19641)
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.chloggen/add-log-and-traces-support-to-receiver-creator.yaml
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| # One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix' | ||
| change_type: enhancement | ||
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| # The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver) | ||
| component: receivercreator | ||
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| # A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`). | ||
| note: add logs and traces support to receivercreator | ||
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| # One or more tracking issues related to the change | ||
| issues: [19205, 19206] | ||
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| # (Optional) One or more lines of additional information to render under the primary note. | ||
| # These lines will be padded with 2 spaces and then inserted directly into the document. | ||
| # Use pipe (|) for multiline entries. | ||
| subtext: |
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| Original file line number | Diff line number | Diff line change |
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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. | ||
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| package receivercreator // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/receivercreator" | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
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| "go.opentelemetry.io/collector/consumer" | ||
| "go.opentelemetry.io/collector/pdata/pcommon" | ||
| "go.opentelemetry.io/collector/pdata/plog" | ||
| "go.opentelemetry.io/collector/pdata/pmetric" | ||
| "go.opentelemetry.io/collector/pdata/ptrace" | ||
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| "github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer" | ||
| ) | ||
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| var _ consumer.Logs = (*enhancingConsumer)(nil) | ||
| var _ consumer.Metrics = (*enhancingConsumer)(nil) | ||
| var _ consumer.Traces = (*enhancingConsumer)(nil) | ||
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| // enhancingConsumer adds additional resource attributes from the given endpoint environment before passing the | ||
| // telemetry to its next consumers. The added attributes vary based on the type of the endpoint. | ||
| type enhancingConsumer struct { | ||
| logs consumer.Logs | ||
| metrics consumer.Metrics | ||
| traces consumer.Traces | ||
| attrs map[string]string | ||
| } | ||
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| func newEnhancingConsumer( | ||
| resources resourceAttributes, | ||
| receiverAttributes map[string]string, | ||
| env observer.EndpointEnv, | ||
| endpoint observer.Endpoint, | ||
| nextLogs consumer.Logs, | ||
| nextMetrics consumer.Metrics, | ||
| nextTraces consumer.Traces, | ||
| ) (*enhancingConsumer, error) { | ||
| attrs := map[string]string{} | ||
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| for _, resource := range []map[string]string{resources[endpoint.Details.Type()], receiverAttributes} { | ||
| // Precompute values that will be inserted for each resource object passed through. | ||
| for attr, expr := range resource { | ||
| // If the attribute value is empty this signals to delete existing | ||
| if expr == "" { | ||
| delete(attrs, attr) | ||
| continue | ||
| } | ||
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| res, err := evalBackticksInConfigValue(expr, env) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed processing resource attribute %q for endpoint %v: %w", attr, endpoint.ID, err) | ||
| } | ||
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| val := fmt.Sprint(res) | ||
| if val != "" { | ||
| attrs[attr] = val | ||
| } | ||
| } | ||
| } | ||
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| ec := &enhancingConsumer{attrs: attrs} | ||
| if nextLogs != nil { | ||
| ec.logs = nextLogs | ||
| } | ||
| if nextMetrics != nil { | ||
| ec.metrics = nextMetrics | ||
| } | ||
| if nextTraces != nil { | ||
| ec.traces = nextTraces | ||
| } | ||
| return ec, nil | ||
| } | ||
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| func (*enhancingConsumer) Capabilities() consumer.Capabilities { | ||
| return consumer.Capabilities{MutatesData: true} | ||
| } | ||
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| func (ec *enhancingConsumer) ConsumeLogs(ctx context.Context, ld plog.Logs) error { | ||
| if ec.logs == nil { | ||
| return fmt.Errorf("no log consumer available") | ||
| } | ||
| rl := ld.ResourceLogs() | ||
| for i := 0; i < rl.Len(); i++ { | ||
| ec.putAttrs(rl.At(i).Resource().Attributes()) | ||
| } | ||
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| return ec.logs.ConsumeLogs(ctx, ld) | ||
| } | ||
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| func (ec *enhancingConsumer) ConsumeMetrics(ctx context.Context, md pmetric.Metrics) error { | ||
| if ec.metrics == nil { | ||
| return fmt.Errorf("no metric consumer available") | ||
| } | ||
| rm := md.ResourceMetrics() | ||
| for i := 0; i < rm.Len(); i++ { | ||
| ec.putAttrs(rm.At(i).Resource().Attributes()) | ||
| } | ||
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| return ec.metrics.ConsumeMetrics(ctx, md) | ||
| } | ||
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| func (ec *enhancingConsumer) ConsumeTraces(ctx context.Context, td ptrace.Traces) error { | ||
| if ec.traces == nil { | ||
| return fmt.Errorf("no trace consumer available") | ||
| } | ||
| rs := td.ResourceSpans() | ||
| for i := 0; i < rs.Len(); i++ { | ||
| ec.putAttrs(rs.At(i).Resource().Attributes()) | ||
| } | ||
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| return ec.traces.ConsumeTraces(ctx, td) | ||
| } | ||
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| func (ec *enhancingConsumer) putAttrs(attrs pcommon.Map) { | ||
| for attr, val := range ec.attrs { | ||
| if _, found := attrs.Get(attr); !found { | ||
| attrs.PutStr(attr, val) | ||
| } | ||
| } | ||
| } |
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