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Merge pull request #4 from deveel/sample-console-app
Sample Console Applications
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| using Deveel.Pipelines; | ||
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| var pipeline = new MathBuilder() | ||
| .Use<AddHandler>() | ||
| .Use<MultiplyHandler>() | ||
| .Use<DivideHandler>() | ||
| .Use<SubtractHandler>() | ||
| .Build(); | ||
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| int? number; | ||
| Console.WriteLine("Please provide me a number: "); | ||
| while (true) { | ||
| if (int.TryParse(Console.ReadLine(), out var value)) { | ||
| number = value; | ||
| break; | ||
| } else { | ||
| Console.WriteLine("Invalid number, please try again: "); | ||
| } | ||
| } | ||
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| var context = new MathContext { | ||
| Number = number.Value | ||
| }; | ||
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| await pipeline.ExecuteAsync(context); | ||
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| Console.WriteLine($"The result is: {context.Number}"); | ||
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| class MathBuilder : PipelineBuilder<MathContext> { | ||
| public MathBuilder Use<THandler>() where THandler : class { | ||
| AddStep<THandler>(); | ||
| return this; | ||
| } | ||
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| public Pipeline<MathContext> Build() { | ||
| return BuildPipeline(new PipelineBuildContext()); | ||
| } | ||
| } | ||
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| class MathContext : PipelineExecutionContext { | ||
| public int Number { get; set; } | ||
| } | ||
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| abstract class MathHandler { | ||
| protected abstract int Execute(int number, int value); | ||
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| public Task HandleAsync(MathContext context) { | ||
| Console.Out.WriteLine($"Executing {GetType().Name} with {context.Number}"); | ||
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| context.Number = Execute(context.Number, context.Number); | ||
| return Task.CompletedTask; | ||
| } | ||
| } | ||
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| class AddHandler : MathHandler { | ||
| protected override int Execute(int number, int value) { | ||
| return number + value; | ||
| } | ||
| } | ||
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| class MultiplyHandler : MathHandler { | ||
| protected override int Execute(int number, int value) { | ||
| return number * value; | ||
| } | ||
| } | ||
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| class SubtractHandler : MathHandler { | ||
| protected override int Execute(int number, int value) { | ||
| return number - value; | ||
| } | ||
| } | ||
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| class DivideHandler : MathHandler { | ||
| protected override int Execute(int number, int value) { | ||
| return number / value; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net6.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\src\Deveel.Pipelines\Deveel.Pipelines.csproj" /> | ||
| </ItemGroup> | ||
|
|
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| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| using Deveel.Pipelines; | ||
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| using Humanizer; | ||
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| using Microsoft.Extensions.DependencyInjection; | ||
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| var services = new ServiceCollection() | ||
| .AddSingleton<INameNornalizer, DefaultNameNormalizer>() | ||
| .AddMyPipeline(p => p | ||
| .Use<AskName>() | ||
| .Use<NormalizeName>() | ||
| .Use<SayHello>()) | ||
| .BuildServiceProvider(); | ||
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| var pipeline = services.GetRequiredService<Pipeline<MyContext>>(); | ||
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| await pipeline.ExecuteAsync(); | ||
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| class MyPipelineBuilder : PipelineBuilder<MyContext> { | ||
| public MyPipelineBuilder Use<THandler>() where THandler : class { | ||
| AddStep<THandler>(); | ||
| return this; | ||
| } | ||
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| public Pipeline<MyContext> Build(IServiceProvider services) | ||
| => BuildPipeline(new PipelineBuildContext(services)); | ||
| } | ||
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| class MyContext : PipelineExecutionContext { | ||
| public string? Name { get; set; } | ||
| } | ||
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| class AskName { | ||
| public Task HandleAsync(MyContext context, ExecutionDelegate<MyContext> next) { | ||
| Console.WriteLine("What's your name?"); | ||
| context.Name = Console.ReadLine(); | ||
| // TODO: invoke next -- currently it stops the pipeline after next | ||
| return Task.CompletedTask; | ||
| } | ||
| } | ||
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| class SayHello { | ||
| public void Handle(MyContext context) { | ||
| Console.WriteLine($"Hello, {context.Name}"); | ||
| } | ||
| } | ||
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| class NormalizeName { | ||
| private readonly INameNornalizer nameNornalizer; | ||
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| public NormalizeName(INameNornalizer nameNornalizer) { | ||
| this.nameNornalizer = nameNornalizer; | ||
| } | ||
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| public async Task HandleAsync(MyContext context, ExecutionDelegate<MyContext> next) { | ||
| context.Name = await nameNornalizer.NormalizeNameAsync(context.Name); | ||
| } | ||
| } | ||
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| static class ServiceCollectionExtensions { | ||
| public static IServiceCollection AddMyPipeline(this IServiceCollection services, Action<MyPipelineBuilder> configure) { | ||
| services.AddSingleton<Pipeline<MyContext>>(provider => { | ||
| var builder = new MyPipelineBuilder(); | ||
| configure(builder); | ||
| return builder.Build(provider); | ||
| }); | ||
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| return services; | ||
| } | ||
| } | ||
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| interface INameNornalizer { | ||
| Task<string> NormalizeNameAsync(string? name); | ||
| } | ||
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| class DefaultNameNormalizer : INameNornalizer { | ||
| public Task<string> NormalizeNameAsync(string? name) | ||
| => Task.FromResult(name.Pascalize()); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net6.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| </PropertyGroup> | ||
|
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| <ItemGroup> | ||
| <PackageReference Include="Humanizer" Version="2.14.1" /> | ||
| <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.1" /> | ||
| </ItemGroup> | ||
|
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\src\Deveel.Pipelines\Deveel.Pipelines.csproj" /> | ||
| </ItemGroup> | ||
|
|
||
| </Project> |
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