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49 changes: 49 additions & 0 deletions
49
Sources/Exporters/OpenTelemetryProtocolHttp/StableOtlpHTTPExporterBase.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| // | ||
| // Copyright The OpenTelemetry Authors | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
|
|
||
| import Foundation | ||
| import SwiftProtobuf | ||
| import OpenTelemetryProtocolExporterCommon | ||
|
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| public class StableOtlpHTTPExporterBase { | ||
| let endpoint: URL | ||
| let httpClient: HTTPClient | ||
| let envVarHeaders: [(String, String)]? | ||
| let config: OtlpConfiguration | ||
|
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| // MARK: - Init | ||
|
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| public init(endpoint: URL, config: OtlpConfiguration = OtlpConfiguration(), useSession: URLSession? = nil, envVarHeaders: [(String, String)]? = EnvVarHeaders.attributes) { | ||
| self.envVarHeaders = envVarHeaders | ||
| self.endpoint = endpoint | ||
| self.config = config | ||
| if let providedSession = useSession { | ||
| self.httpClient = HTTPClient(session: providedSession) | ||
| } else { | ||
| self.httpClient = HTTPClient() | ||
| } | ||
| } | ||
|
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| public func createRequest(body: Message, endpoint: URL) -> URLRequest { | ||
| var request = URLRequest(url: endpoint) | ||
|
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| for header in config.headers ?? [] { | ||
| request.addValue(header.1, forHTTPHeaderField: header.0) | ||
| } | ||
|
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| do { | ||
| request.httpMethod = "POST" | ||
| request.httpBody = try body.serializedData() | ||
| request.setValue(Headers.getUserAgentHeader(), forHTTPHeaderField: Constants.HTTP.userAgent) | ||
| request.setValue("application/x-protobuf", forHTTPHeaderField: "Content-Type") | ||
| } catch { | ||
| print("Error serializing body: \(error)") | ||
| } | ||
|
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| return request | ||
| } | ||
|
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| public func shutdown(explicitTimeout: TimeInterval? = nil) { } | ||
| } |
95 changes: 95 additions & 0 deletions
95
Sources/Exporters/OpenTelemetryProtocolHttp/metric/StableOtlpHTTPMetricExporter.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| // | ||
| // Copyright The OpenTelemetry Authors | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
|
|
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| import Foundation | ||
| import OpenTelemetrySdk | ||
| import OpenTelemetryProtocolExporterCommon | ||
|
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| public func defaultStableOtlpHTTPMetricsEndpoint() -> URL { | ||
| URL(string: "http://localhost:4318/v1/metrics")! | ||
| } | ||
|
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| public class StableOtlpHTTPMetricExporter: StableOtlpHTTPExporterBase, StableMetricExporter { | ||
| var aggregationTemporalitySelector: AggregationTemporalitySelector | ||
| var defaultAggregationSelector: DefaultAggregationSelector | ||
|
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| var pendingMetrics: [StableMetricData] = [] | ||
|
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| // MARK: - Init | ||
|
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| public init(endpoint: URL, config: OtlpConfiguration = OtlpConfiguration(), aggregationTemporalitySelector: AggregationTemporalitySelector = AggregationTemporality.alwaysCumulative(), defaultAggregationSelector: DefaultAggregationSelector = AggregationSelector.instance, useSession: URLSession? = nil, envVarHeaders: [(String, String)]? = EnvVarHeaders.attributes) { | ||
|
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| self.aggregationTemporalitySelector = aggregationTemporalitySelector | ||
| self.defaultAggregationSelector = defaultAggregationSelector | ||
|
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| super.init(endpoint: endpoint, config: config, useSession: useSession, envVarHeaders: envVarHeaders) | ||
| } | ||
|
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| // MARK: - StableMetricsExporter | ||
|
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| public func export(metrics : [StableMetricData]) -> ExportResult { | ||
| pendingMetrics.append(contentsOf: metrics) | ||
| let sendingMetrics = pendingMetrics | ||
| pendingMetrics = [] | ||
| let body = Opentelemetry_Proto_Collector_Metrics_V1_ExportMetricsServiceRequest.with { | ||
| $0.resourceMetrics = MetricsAdapter.toProtoResourceMetrics(stableMetricData: sendingMetrics) | ||
| } | ||
|
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| let request = createRequest(body: body, endpoint: endpoint) | ||
| httpClient.send(request: request) { [weak self] result in | ||
| switch result { | ||
| case .success(_): | ||
| break | ||
| case .failure(let error): | ||
| self?.pendingMetrics.append(contentsOf: sendingMetrics) | ||
| print(error) | ||
| } | ||
| } | ||
|
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| return .success | ||
| } | ||
|
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| public func flush() -> ExportResult { | ||
| var exporterResult: ExportResult = .success | ||
|
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| if !pendingMetrics.isEmpty { | ||
| let body = Opentelemetry_Proto_Collector_Metrics_V1_ExportMetricsServiceRequest.with { | ||
| $0.resourceMetrics = MetricsAdapter.toProtoResourceMetrics(stableMetricData: pendingMetrics) | ||
| } | ||
| let semaphore = DispatchSemaphore(value: 0) | ||
| let request = createRequest(body: body, endpoint: endpoint) | ||
| httpClient.send(request: request) { result in | ||
| switch result { | ||
| case .success(_): | ||
| break | ||
| case .failure(let error): | ||
| print(error) | ||
| exporterResult = .failure | ||
| } | ||
| semaphore.signal() | ||
| } | ||
| semaphore.wait() | ||
| } | ||
|
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| return exporterResult | ||
| } | ||
|
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| public func shutdown() -> ExportResult { | ||
| return .success | ||
| } | ||
|
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| // MARK: - AggregationTemporalitySelectorProtocol | ||
|
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| public func getAggregationTemporality(for instrument: OpenTelemetrySdk.InstrumentType) -> OpenTelemetrySdk.AggregationTemporality { | ||
| return aggregationTemporalitySelector.getAggregationTemporality(for: instrument) | ||
| } | ||
|
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| // MARK: - DefaultAggregationSelector | ||
|
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| public func getDefaultAggregation(for instrument: OpenTelemetrySdk.InstrumentType) -> OpenTelemetrySdk.Aggregation { | ||
| return defaultAggregationSelector.getDefaultAggregation(for: instrument) | ||
| } | ||
| } |
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