Frank.PulseFlow.Logging 1.5.0

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paket add Frank.PulseFlow.Logging --version 1.5.0                
#r "nuget: Frank.PulseFlow.Logging, 1.5.0"                
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PulseFlow (Local Messaging)

PulseFlow Local Messaging is a lightweight, high-performance messaging system that enables seamless communication, and thread-safe data transfer between different parts of an application. It's designed to be simple, flexible, and scalable, allowing for easy integration into any system architecture.


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Table of Contents


Acknowledgements

This is a very thin abstraction layer on top of System.Threading.Channels, which is a NuGet package that gets shipped along with every release of .NET. The reason for this abstraction layer is to make it easier to use System.Threading.Channels in a Dependency Injection scenario, and to make it easier to use System.Threading.Channels in a thread-safe manner. Thanks to the .NET team for making System.Threading.Channels, and in particular Stephen Toub for his blog post on System.Threading.Channels, and as part of the rest of the team.

Overview

PulseFlow Local Messaging is a lightweight, high-performance messaging system that enables seamless communication between different parts of an application. It's designed to be simple, flexible, and scalable, allowing for easy integration into any system architecture.

Key Features

  • Lightweight: PulseFlow is a lightweight messaging system, with a small footprint and minimal resource requirements.
  • High Performance: It's designed for high performance and scalability, capable of handling a vast volume of messages simultaneously.
  • Asynchronous Communication: PulseFlow supports asynchronous data flow, allowing for non-blocking and concurrent message transmissions.
  • Flexible and Adaptable: It's flexible and adaptable, capable of handling various types of messages and adapting its processing logic based on the nature and requirements of each message.
  • Simple and Easy to Use: PulseFlow is simple and easy to use, with a straightforward API and minimal configuration requirements. This is assuming Dependency Injection is used. If not, then it's a bit more complicated, and not supported at this time.
  • Thread-Safe: It's thread-safe, ensuring that messages are processed in a safe and reliable manner.
  • Open Source: PulseFlow is open-source, with the source code available on GitHub.
  • Cross-Platform: It's cross-platform, supporting multiple operating systems and platforms.
  • Supports multiple consumers: PulseFlow supports multiple consumers, thereby allowing for parallel processing of messages. This is particularly useful in scenarios where there's a need to save messages to some form of audit trail or log.

Illustration

graph TB
    subgraph "Transmission"
        EmailPulse[Email : IPulse] -->|transmitted via| Conduit[IConduit]
        FtpPulse[FTP : IPulse] -->|transmitted via| Conduit[IConduit]
        ApiPulse[API : IPulse] -->|transmitted via| Conduit[IConduit]
    end
    subgraph "Delivery"
        Conduit -->|delivered to| IChannel[IChannel]
    end
    subgraph "Consumption and Routing"
        IChannel -->|consumed and routed by| Nexus[Nexus]
        Nexus -->|typeof==Email| EmailFlow[EmailFlow : IFlow]
        Nexus -->|typeof==API| Flow[FtpAndApiFlow : IFlow]
        Nexus -->|typeof==FTP| Flow[FtpAndApiFlow : IFlow]
        Nexus -->|typeof==?| AuditFlow[AuditFlow : IFlow]
        AuditFlow -->|audit trail by| ILogger[ILogger]
    end

In this Mermaid diagram:

  • IPulse is the interface for the Pulse.
  • IConduit is the interface for the Conduit, which is the pathway through which messages are transmitted.
  • IChannel is the interface for the Channel, which is a wrapper around the System.Threading.Channels.Channel<T> class, which is a thread-safe data structure for passing data between producers and consumers located in different threads.
  • Nexus is the central processing service, which handles the pulse messages.
  • IFlow is the interface for the a flow, which is the mechanism that handles/consumes the pulse messages.
  • ILogger is the interface for the generic logger in dotnet.

When you include this in a GitHub Markdown file, GitHub will render the Mermaid diagram as a visual graph. Remember to remove the extra backticks (```) in the beginning and end when adding this to your README.

Use Cases

PulseFlow is a general-purpose messaging system that can be used in a wide variety of applications. It's particularly useful in scenarios where there's a need for asynchronous communication between different parts of the system.

Another use case is when you need multiple threads to do some non-multiple-thread-safe work, like saving to a log-file. Example: You have a web API and you want to save a all requests' route, method and user to a log-file. You can use PulseFlow to do this in a thread-safe manner, because PulseFlow's IConduit and IChannel are thread-safe. You can have multiple threads saving to the same log-file, and PulseFlow will ensure that the log-file is not written to by multiple threads at the same time, and that the writing happens in the order the messages are received.

Example
graph TB
    subgraph Transmission
        ApiPulse1[ApiMessage : IPulse] -->|transmitted via| Conduit[IConduit]
        ApiPulse2[ApiMessage : IPulse] -->|transmitted via| Conduit[IConduit]
        ApiPulse3[ApiMessage : IPulse] -->|transmitted via| Conduit[IConduit]
        ApiPulse4[ApiMessage : IPulse] -->|transmitted via| Conduit[IConduit]
        ApiPulse5[ApiMessage : IPulse] -->|transmitted via| Conduit[IConduit]
        ApiPulse6[ApiMessage : IPulse] -->|transmitted via| Conduit[IConduit]
    end
    subgraph Delivery
        Conduit -->|delivered to| IChannel[IChannel]
    end
    subgraph Consumption and Routing
        IChannel -->|consumed and routed by| Nexus[Nexus]
        Nexus -->|typeof==API| Flow[FileLoggerFlow : IFlow]
    end

Getting Started

This section provides a quick guide on how to get started with PulseFlow Local Messaging.

Installation

PulseFlow is available as a NuGet package, which can be installed using the following command:

dotnet add package Frank.PulseFlow

Once installed, you can start using PulseFlow by adding the following using statement to your code:

using Frank.PulseFlow;

Basic Usage

The following code snippet shows a basic example of how to use PulseFlow:

IHostBuilder builder = Host.CreateDefaultBuilder();

builder.ConfigureServices((context, services) =>
{
    services.AddPulseFlow(messagingBuilder =>
    {
        messagingBuilder.AddFlow<TextPulseFlow>();
    });
    services.AddHostedService<TestingService>();
});

IHost app = builder.Build();

await app.RunAsync();

public class TextFlow : IFlow
{
    private readonly ILogger<TextFlow> _logger;

    public TextFlow(ILogger<TextFlow> logger) => _logger = logger;

    public async Task HandleAsync(IPulse message, CancellationToken cancellationToken)
    {
        if (message is TextPulse textMessage)
            _logger.LogInformation("Received text message: {Text}", textMessage.Text);
        await Task.CompletedTask;
    }

    public bool CanHandle(Type pulseType) => pulseType == typeof(TextPulse);
}

public class TestingService : BackgroundService
{
    private readonly IConduit _messenger;

    public TestingService(IConduit messenger) => _messenger = messenger;

    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        await Task.Delay(2000, stoppingToken);
        while (!stoppingToken.IsCancellationRequested)
        {
            await _messenger.SendAsync(new TextPulse { Id = Guid.NewGuid(), Text = "Hello World" });
            await Task.Delay(1000, stoppingToken);
        }
    }
}
public class TextPulse : BasePulse
{
    public string Text { get; set; }
}

Concepts

This section provides an in-depth explanation of the key concepts and components within the system: Nexus, Conduit, Pulse, and PulseFlow. Understanding these concepts is crucial for grasping how the system operates and interacts with data.

Nexus

The Nexus is the central hub of our messaging system, analogous to a neural network's core. It serves as the primary processing service, where all data messages, or 'Pulses', are received, interpreted, and routed to their respective destinations.

  • Role: Nexus acts as the orchestrator within the system, managing the flow of messages and ensuring that each one is processed according to predefined rules and logic.
  • Functionality: It handles various tasks like message validation, transformation, and decision-making on how and where messages should be directed post-processing.
  • Scalability and Performance: Designed for high performance and scalability, Nexus can handle a vast volume of messages simultaneously, ensuring minimal latency and high throughput in data processing.

Conduit

The Conduit represents the pathway through which messages, or 'Pulses', are transmitted within the system. It's the messenger that ensures the delivery of data from one point to another.

  • Mechanism: Conduit facilitates the smooth and efficient transport of messages across different parts of the system.
  • Reliability and Integrity: Ensuring data integrity, Conduit maintains the fidelity of the messages as they traverse through various processes.
  • Asynchronous Communication: It supports asynchronous data flow, allowing for non-blocking and concurrent message transmissions, which is key for a responsive and efficient system.

Pulse

Pulse is the term used to describe the individual units of data or messages that flow through the system.

  • Data Encapsulation: Each Pulse is a packet of information, encapsulating the necessary data in a well-defined format.
  • Types and Variability: Pulses can vary in type and structure, ranging from simple text messages to complex data structures, each tailored to carry specific information relevant to its intended process.
  • Lifecycle: The lifecycle of a Pulse includes its creation, transmission through the Conduit, processing in the Nexus, and final delivery or action as dictated by the system's logic.

Flow

Flow is the sophisticated mechanism responsible for handling and manipulating the Pulses as they move through the system.

  • Message Handling: It's specifically designed to process each Pulse, applying necessary transformations, routing, and any other required operations.
  • Flexibility and Adaptability: PulseFlow is adept at handling various types of Pulses, capable of adapting its processing logic based on the nature and requirements of each message.
  • Integration Point: Acting as a key integration point within the system, it ensures that Pulses are managed efficiently and effectively, readying them for their next phase in the data journey.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Contributing

Contributions are welcome! Please see CONTRIBUTING.md for more details.

Product Compatible and additional computed target framework versions.
.NET net7.0 is compatible.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
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