61 lines
2.5 KiB
C#
61 lines
2.5 KiB
C#
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using SWP.Core.Exceptions;
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using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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namespace SWP.Core.Configurations.JsonConfigProvider
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{
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public static class JsonConfigExtension
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{
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/// <summary>
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/// Adds a JSON configuration source to the configuration builder.
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/// </summary>
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/// <param name="builder">The configuration builder to add to</param>
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/// <param name="configurationFilePath">Path to the JSON configuration file. Defaults to "appconfiguration.json"</param>
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/// <param name="optional">If true, the configuration file is optional. Defaults to true</param>
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/// <param name="reloadOnChange">If true, the configuration will be reloaded when the file changes. Defaults to false</param>
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/// <returns>The configuration builder</returns>
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public static IConfigurationBuilder AddJsonFile(this IConfigurationBuilder builder, string configurationFilePath = "appconfiguration.json", bool? optional = true, bool? reloadOnChange = false)
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{
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return builder.AddProvider(new JsonConfigProvider(builder, configurationFilePath, optional ?? true, reloadOnChange ?? false));
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}
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}
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public interface IHasConfigurationFilePath
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{
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string ConfigurationFilePath { get; }
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}
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public class JsonConfigProvider : IConfigurationProvider, IHasConfigurationFilePath
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{
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private readonly IConfigurationBuilder _builder;
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private readonly bool _reloadOnChange;
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JObject _configuration;
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public string ConfigurationFilePath { get; private set; }
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public JsonConfigProvider() { }
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public JsonConfigProvider(IConfigurationBuilder builder, string configurationFilePath, bool optional, bool reloadOnChange)
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{
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if (!optional && !File.Exists(configurationFilePath))
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throw new ConfigurationException($"File not found, path: {configurationFilePath}");
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if (optional && !File.Exists(configurationFilePath))
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return;
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ConfigurationFilePath = configurationFilePath;
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_builder = builder;
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_reloadOnChange = reloadOnChange;
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}
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public void Build()
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{
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using (StreamReader file = File.OpenText(ConfigurationFilePath))
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using (JsonTextReader reader = new JsonTextReader(file))
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_configuration = (JObject)JToken.ReadFrom(reader);
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}
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public JObject Configuration()
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{
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return _configuration;
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}
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}
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}
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