| | | 1 | | using ArturRios.Configuration.Providers.Interfaces; |
| | | 2 | | using ArturRios.Extensions; |
| | | 3 | | |
| | | 4 | | namespace ArturRios.Configuration.Providers; |
| | | 5 | | |
| | | 6 | | /// <summary> |
| | | 7 | | /// Provides configuration values by reading environment variables from the current process. |
| | | 8 | | /// </summary> |
| | | 9 | | /// <remarks> |
| | | 10 | | /// Values are retrieved via <see cref="Environment.GetEnvironmentVariable(string)"/> and parsed using helper extension |
| | | 11 | | /// </remarks> |
| | | 12 | | public class EnvironmentProvider : IConfigurationProvider |
| | | 13 | | { |
| | | 14 | | /// <summary> |
| | | 15 | | /// Gets a boolean value for the given environment variable key. |
| | | 16 | | /// </summary> |
| | | 17 | | /// <param name="key">The environment variable key.</param> |
| | | 18 | | /// <returns>The parsed boolean value, or <c>null</c> if not found or unparseable.</returns> |
| | | 19 | | public bool? GetBool(string key) |
| | 4 | 20 | | { |
| | 4 | 21 | | var value = Environment.GetEnvironmentVariable(key); |
| | | 22 | | |
| | 4 | 23 | | return value.ParseToBoolOrDefault(); |
| | 4 | 24 | | } |
| | | 25 | | |
| | | 26 | | /// <summary> |
| | | 27 | | /// Gets an integer value for the given environment variable key. |
| | | 28 | | /// </summary> |
| | | 29 | | /// <param name="key">The environment variable key.</param> |
| | | 30 | | /// <returns>The parsed integer value, or <c>null</c> if not found or unparseable.</returns> |
| | | 31 | | public int? GetInt(string key) |
| | 3 | 32 | | { |
| | 3 | 33 | | var value = Environment.GetEnvironmentVariable(key); |
| | | 34 | | |
| | 3 | 35 | | return value.ParseToIntOrDefault(); |
| | 3 | 36 | | } |
| | | 37 | | |
| | | 38 | | /// <summary> |
| | | 39 | | /// Gets the raw string value for the given environment variable key. |
| | | 40 | | /// </summary> |
| | | 41 | | /// <param name="key">The environment variable key.</param> |
| | | 42 | | /// <returns>The string value, or <c>null</c> if not found.</returns> |
| | 2 | 43 | | public string? GetString(string key) => Environment.GetEnvironmentVariable(key); |
| | | 44 | | |
| | | 45 | | /// <summary> |
| | | 46 | | /// Gets a deserialized object of type <typeparamref name="T"/> for the given environment variable key. |
| | | 47 | | /// </summary> |
| | | 48 | | /// <typeparam name="T">The target type to deserialize to.</typeparam> |
| | | 49 | | /// <param name="key">The environment variable key.</param> |
| | | 50 | | /// <returns>The deserialized object instance, or <c>null</c> if not found or unparseable.</returns> |
| | | 51 | | public T? GetObject<T>(string key) where T : class |
| | 3 | 52 | | { |
| | 3 | 53 | | var value = Environment.GetEnvironmentVariable(key); |
| | | 54 | | |
| | 3 | 55 | | return value.ParseToObjectOrDefault<T>(); |
| | 3 | 56 | | } |
| | | 57 | | } |