62 lines
2.8 KiB
C#
62 lines
2.8 KiB
C#
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using System.CommandLine.Binding;
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using System.CommandLine.Parsing;
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namespace Duplicati.CommandLine.ServerUtil;
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/// <summary>
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/// An abstract binder class for managing a singleton instance of <see cref="OutputInterceptor"/>.
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/// </summary>
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/// <remarks>
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/// This class ensures that only one instance of <see cref="OutputInterceptor"/> is associated with a given <see cref="BindingContext"/>.
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/// </remarks>
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public abstract class OutputInterceptorBinder : BinderBase<OutputInterceptor>
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{
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private static OutputInterceptor? _instance;
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/// <summary>
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/// Gets the current instance of <see cref="OutputInterceptor"/>.
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/// </summary>
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/// <exception cref="InvalidOperationException">Thrown when the instance has not been initialized.</exception>
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public static OutputInterceptor? Instance => _instance;
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/// <summary>
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/// Retrieves or creates a <see cref="OutputInterceptor"/> instance for the specified binding context.
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/// </summary>
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/// <param name="bindingContext">The binding context to associate with the interceptor. Must not be null.</param>
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/// <returns>The existing or newly created <see cref="OutputInterceptor"/> instance.</returns>
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/// <exception cref="ArgumentNullException">Thrown when <paramref name="bindingContext"/> is null.</exception>
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public static OutputInterceptor GetConsoleInterceptor(BindingContext bindingContext)
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{
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ArgumentNullException.ThrowIfNull(bindingContext, nameof(bindingContext));
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if (_instance is not null && ReferenceEquals(_instance.BindingContext, bindingContext))
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{
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return _instance;
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}
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_instance = CreateInterceptor(bindingContext);
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return _instance;
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}
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/// <summary>
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/// Gets the bound <see cref="OutputInterceptor"/> value for the specified binding context.
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/// </summary>
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/// <param name="bindingContext">The binding context to retrieve the interceptor for.</param>
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/// <returns>The associated <see cref="OutputInterceptor"/> instance.</returns>
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protected override OutputInterceptor GetBoundValue(BindingContext bindingContext)
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{
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return GetConsoleInterceptor(bindingContext);
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}
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/// <summary>
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/// Creates a new <see cref="OutputInterceptor"/> instance with the specified binding context.
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/// </summary>
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/// <param name="bindingContext">The binding context to initialize the interceptor with.</param>
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/// <returns>A new <see cref="OutputInterceptor"/> instance.</returns>
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private static OutputInterceptor CreateInterceptor(BindingContext bindingContext)
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{
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var interceptor = new OutputInterceptor(bindingContext.ParseResult.Tokens.Any(x => x is { Type: TokenType.Option, Value: "--json" }), bindingContext);
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interceptor.SetCommand(bindingContext.ParseResult.CommandResult.Command.Name);
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return interceptor;
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}
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}
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