85 lines
3.1 KiB
C#
85 lines
3.1 KiB
C#
// <copyright file="BaseOtlpHttpExportClient.cs" company="OpenTelemetry Authors">
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// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// </copyright>
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using System;
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using System.Collections.Generic;
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using System.Net.Http;
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using System.Threading;
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using OpenTelemetry.Internal;
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namespace OpenTelemetry.Exporter.OpenTelemetryProtocol.Implementation.ExportClient
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{
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/// <summary>Base class for sending OTLP export request over HTTP.</summary>
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/// <typeparam name="TRequest">Type of export request.</typeparam>
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internal abstract class BaseOtlpHttpExportClient<TRequest> : IExportClient<TRequest>
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{
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protected BaseOtlpHttpExportClient(OtlpExporterOptions options, HttpClient httpClient = null)
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{
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Guard.Null(options, nameof(options));
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Guard.InvalidTimeout(options.TimeoutMilliseconds, $"{nameof(options)}.{nameof(options.TimeoutMilliseconds)}");
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this.Options = options;
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this.Headers = options.GetHeaders<Dictionary<string, string>>((d, k, v) => d.Add(k, v));
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this.HttpClient = httpClient ?? new HttpClient { Timeout = TimeSpan.FromMilliseconds(this.Options.TimeoutMilliseconds) };
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}
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internal OtlpExporterOptions Options { get; }
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internal HttpClient HttpClient { get; }
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internal IReadOnlyDictionary<string, string> Headers { get; }
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/// <inheritdoc/>
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public bool SendExportRequest(TRequest request, CancellationToken cancellationToken = default)
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{
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try
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{
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using var httpRequest = this.CreateHttpRequest(request);
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using var httpResponse = this.SendHttpRequest(httpRequest, cancellationToken);
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httpResponse?.EnsureSuccessStatusCode();
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}
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catch (HttpRequestException ex)
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{
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OpenTelemetryProtocolExporterEventSource.Log.FailedToReachCollector(this.Options.Endpoint, ex);
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return false;
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}
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return true;
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}
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/// <inheritdoc/>
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public bool Shutdown(int timeoutMilliseconds)
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{
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this.HttpClient.CancelPendingRequests();
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return true;
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}
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protected abstract HttpRequestMessage CreateHttpRequest(TRequest request);
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protected HttpResponseMessage SendHttpRequest(HttpRequestMessage request, CancellationToken cancellationToken)
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{
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#if NET5_0_OR_GREATER
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return this.HttpClient.Send(request, cancellationToken);
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#else
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return this.HttpClient.SendAsync(request, cancellationToken).GetAwaiter().GetResult();
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#endif
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}
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}
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}
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