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178
MesaFabApproval.Shared/Services/MonInWorkerClient.cs
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178
MesaFabApproval.Shared/Services/MonInWorkerClient.cs
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using System.Text;
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using System.Text.Json;
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using MesaFabApproval.Shared.Models;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Logging;
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using static System.Net.Mime.MediaTypeNames;
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namespace MesaFabApproval.Shared.Services;
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public interface IMonInWorkerClient {
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void PostAverage(string metricName, double metricValue);
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void PostCount(string metricName, double metricValue);
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void PostStatus(string statusName, StatusValue statusValue);
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}
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public class MonInWorkerClient : IMonInWorkerClient {
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private readonly IHttpClientFactory _httpClientFactory;
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private readonly IConfiguration _config;
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private readonly ILogger<MonInWorkerClient> _logger;
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private readonly string _baseUrl;
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private readonly int _retryLimit = -1;
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private readonly int _backoffInSeconds = -1;
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private readonly string _resource;
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public MonInWorkerClient(IHttpClientFactory httpClientFactory,
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IConfiguration config,
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ILogger<MonInWorkerClient> logger) {
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_httpClientFactory = httpClientFactory;
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if (_httpClientFactory is null) throw new ArgumentNullException("IHttpClientFactory not injected");
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_config = config;
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if (_config is null) throw new ArgumentNullException("IConfiguration not injected");
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_logger = logger;
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if (_logger is null) throw new ArgumentNullException("ILogger not injected");
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_baseUrl = Environment.GetEnvironmentVariable("MonInWorkerUrl") ??
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throw new ArgumentNullException("MonInWorkerUrl environment variable not found");
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string monInRetries = Environment.GetEnvironmentVariable("MonInRetries") ??
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throw new ArgumentNullException("MonInRetries environment variable not found");
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if (!Int32.TryParse(monInRetries, out _retryLimit))
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throw new ArgumentException("MonInReties environment variable not an integer");
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string monInBackoffSeconds = Environment.GetEnvironmentVariable("MonInBackoffSeconds") ??
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throw new ArgumentNullException("MonInBackoffSeconds environment variable not found");
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if (!Int32.TryParse(monInBackoffSeconds, out _backoffInSeconds))
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throw new ArgumentException("MonInBackoffSeconds environment variable not an integer");
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_resource = Environment.GetEnvironmentVariable("FabApprovalApiMonInResource") ??
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throw new ArgumentNullException("OIWizardMonInResource environment variable not found");
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}
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public async void PostStatus(string statusName, StatusValue statusValue) {
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string url = _baseUrl + "status";
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StringBuilder logBuilder = new();
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logBuilder.Append($"Attempting to send MonIn status request for resource {_resource} ");
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logBuilder.Append($"with name {statusName} and value {statusValue.ToString()} to url {url}");
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_logger.LogInformation(logBuilder.ToString());
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try {
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bool success = false;
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int retries = _retryLimit;
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while (!success && retries > 0) {
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Task.Delay(TimeSpan.FromSeconds((_retryLimit - retries) * _backoffInSeconds)).Wait();
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HttpClient httpClient = _httpClientFactory.CreateClient();
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RawMonInStatusRequest statusRequest = new RawMonInStatusRequest() {
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resource = _resource,
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dateTime = DateTime.Now,
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statusName = statusName,
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statusValue = statusValue.ToString()
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};
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StringContent statusRequestJson = new StringContent(JsonSerializer.Serialize(statusRequest),
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Encoding.UTF8,
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Application.Json);
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using HttpResponseMessage httpResponseMessage = await httpClient.PostAsync(url, statusRequestJson);
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success = httpResponseMessage.IsSuccessStatusCode;
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retries--;
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}
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} catch (Exception ex) {
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StringBuilder errLogBuilder = new();
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errLogBuilder.Append($"An exception occurred when attempting to send MonIn status request for resource {_resource} ");
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errLogBuilder.Append($"with name {statusName} and value {statusValue.ToString()} to url {url}. Exception: {ex.Message}");
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_logger.LogError(errLogBuilder.ToString());
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}
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}
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public async void PostCount(string metricName, double metricValue) {
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string url = _baseUrl + "count";
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StringBuilder logMsgBuilder = new();
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logMsgBuilder.Append($"Attempting to send MonIn count request for resource {_resource} ");
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logMsgBuilder.Append($"with name {metricName} and value {metricValue} to url {url}");
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_logger.LogInformation(logMsgBuilder.ToString());
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try {
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bool success = false;
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int retries = _retryLimit;
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while (!success && retries > 0) {
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Task.Delay(TimeSpan.FromSeconds((_retryLimit - retries) * _backoffInSeconds)).Wait();
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HttpClient httpClient = _httpClientFactory.CreateClient();
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MonInMetricRequest metricRequest = new MonInMetricRequest() {
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resource = _resource,
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dateTime = DateTime.Now,
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metricName = metricName,
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metricValue = metricValue
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};
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StringContent metricRequestJson = new StringContent(JsonSerializer.Serialize(metricRequest),
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Encoding.UTF8,
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Application.Json);
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using HttpResponseMessage httpResponseMessage = await httpClient.PostAsync(url, metricRequestJson);
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success = httpResponseMessage.IsSuccessStatusCode;
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retries--;
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}
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} catch (Exception ex) {
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StringBuilder errMsgBuilder = new();
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errMsgBuilder.Append($"An exception occurred when attempting to send MonIn count request for resource {_resource} ");
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errMsgBuilder.Append($"with name {metricName} and value {metricValue} to url {url}. Exception: {ex.Message}");
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_logger.LogError(errMsgBuilder.ToString());
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}
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}
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public async void PostAverage(string metricName, double metricValue) {
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string url = _baseUrl + "average";
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StringBuilder logMsgBuilder = new();
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logMsgBuilder.Append($"Attempting to send MonIn average request for resource {_resource} ");
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logMsgBuilder.Append($"with name {metricName} and value {metricValue} to url {url}");
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_logger.LogInformation(logMsgBuilder.ToString());
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try {
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bool success = false;
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int retries = _retryLimit;
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while (!success && retries > 0) {
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Task.Delay(TimeSpan.FromSeconds((_retryLimit - retries) * _backoffInSeconds)).Wait();
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HttpClient httpClient = _httpClientFactory.CreateClient();
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MonInMetricRequest metricRequest = new MonInMetricRequest() {
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resource = _resource,
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dateTime = DateTime.Now,
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metricName = metricName,
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metricValue = metricValue
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};
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StringContent metricRequestJson = new StringContent(JsonSerializer.Serialize(metricRequest),
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Encoding.UTF8,
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Application.Json);
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using HttpResponseMessage httpResponseMessage = await httpClient.PostAsync(url, metricRequestJson);
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success = httpResponseMessage.IsSuccessStatusCode;
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retries--;
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}
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} catch (Exception ex) {
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StringBuilder errMsgBuilder = new();
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errMsgBuilder.Append($"An exception occurred when attempting to send MonIn average request for resource {_resource} ");
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errMsgBuilder.Append($"with name {metricName} and value {metricValue} to url {url}. Exception: {ex.Message}");
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_logger.LogError(errMsgBuilder.ToString());
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}
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}
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}
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