diff options
Diffstat (limited to 'lib/VNLib.Plugins.Extensions.Loading/src')
| -rw-r--r-- | lib/VNLib.Plugins.Extensions.Loading/src/ConfigurationExtensions.cs | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/VNLib.Plugins.Extensions.Loading/src/ConfigurationExtensions.cs b/lib/VNLib.Plugins.Extensions.Loading/src/ConfigurationExtensions.cs index 06c3ee4..bbd6c10 100644 --- a/lib/VNLib.Plugins.Extensions.Loading/src/ConfigurationExtensions.cs +++ b/lib/VNLib.Plugins.Extensions.Loading/src/ConfigurationExtensions.cs @@ -213,6 +213,35 @@ namespace VNLib.Plugins.Extensions.Loading } /// <summary> + /// Attempts to get a configuration property from the specified configuration scope + /// and invokes your callback function on the element if found to transform the + /// output value + /// </summary> + /// <typeparam name="T"></typeparam> + /// <param name="config"></param> + /// <param name="property">The name of the configuration element to get</param> + /// <param name="getter">The function used to set the desired value from the config element</param> + /// <param name="value">The output value to set</param> + /// <returns>A value that indicates if the property was found</returns> + public static bool TryGetProperty<T>(this IConfigScope config, string property, Func<JsonElement, T> getter, out T? value) + { + //Check null + ArgumentNullException.ThrowIfNull(config, nameof(config)); + ArgumentNullException.ThrowIfNull(property, nameof(property)); + ArgumentNullException.ThrowIfNull(getter, nameof(getter)); + + //Get the property + if (config.TryGetValue(property, out JsonElement el)) + { + //Safe to invoke callback function on the element and set the return value + value = getter(el); + return true; + } + value = default; + return false; + } + + /// <summary> /// Gets the configuration property name for the type /// </summary> /// <param name="type">The type to get the configuration name for</param> |