Here is a comprehensive summary of the NDF (Net Delivery Framework) solution:

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Net Delivery Framework (NDF) — Solution Summary

Repository: https://github.com/CodeFactoryLLC/NDF Author: CodeFactory, LLC. | License: MIT | Version: 10.26141.1

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Solution Overview

The NDF solution provides reusable delivery framework patterns for .NET solutions. It is composed of two NuGet-published class library projects that implement consistent exception handling, structured logging, and dependency injection patterns.

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Projects

1. CodeFactory.NDF — Core Library

NuGet: CodeFactory.NDF Target Frameworks: .NET Standard 2.1, .NET 10.0

The foundational library for the framework. All other NDF libraries depend on this package.

Features

Managed Exception Hierarchy

A structured, application-safe exception system built on a common ManagedException base class. Exceptions surface user-friendly messages without leaking internal details.

Exception Class	Base Class	Purpose
ManagedException	System.Exception	Root base for all managed exceptions
ManagedExceptions	ManagedException	Aggregates multiple exceptions into one
CommunicationException	ManagedException	Communication failures between services
ConfigurationException	ManagedException	Missing or invalid configuration
DataException	ManagedException	Data operation errors
LogicException	ManagedException	Application logic errors
SecurityException	ManagedException	Security-related errors
UnhandledException	ManagedException	Wraps unexpected exceptions safely
ValidationException	ManagedException	Input data validation failures (+ DataField property)
AuthenticationException	SecurityException	Authentication failures
AuthorizationException	SecurityException	Authorization/access-control failures
DataValidationException	DataException	Property-level data validation (+ PropertyName property)
DuplicateException	DataException	Duplicate data detection

Structured Logging Extensions (LoggingExtensions)

Extension methods on ILogger that automatically inject caller metadata (member name, line number) into log output via [CallerMemberName] and [CallerLineNumber].

Method	Description
EnterLog	Logs entry into a member at the specified log level
ExitLog	Logs exit from a member at the specified log level

Compatible with structured log sinks such as Serilog and Application Insights.

Dependency Injection Loader (DependencyInjectionLoader)

An abstract base class for library-level DI registration. Supports a layered, composable loading pipeline:

Override Method	Purpose
LoadLibraries	Load registrations from dependent child libraries
LoadManualRegistration	Register services needing manual/conditional setup
LoadRegistration	Primary service registrations for the library

Dependencies

Package	Version
Microsoft.Extensions.Configuration.Abstractions	10.0.0
Microsoft.Extensions.DependencyInjection.Abstractions	10.0.0
Microsoft.Extensions.Logging.Abstractions	10.0.0
System.Collections.Immutable (netstandard2.1 only)	10.0.0

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2. CodeFactory.NDF.SQL — SQL Support Library

NuGet: CodeFactory.NDF.SQL Target Framework: .NET 10.0 only

A supplemental library providing structured MS SQL Server integration. Translates raw SqlException errors into the NDF managed exception hierarchy — eliminating boilerplate data-layer error handling.

Features

SQL Exception Management (SqlExceptionManagement)

A static class with extension methods that map SqlException error numbers to the appropriate NDF managed exception.

Method	Description
ThrowManagedException(this SqlException source)	Evaluates the SQL error number and throws the corresponding NDF managed exception

SQL Error-to-Exception Mapping

SQL Error	Condition	NDF Exception
18456, 18470	Auth failure / Account disabled	AuthenticationException
229, 230, 262	Permission denied	AuthorizationException
10060, 53, 10054	Connection/network failure	CommunicationException
-2	Timeout	CommunicationTimeoutException
4060	Cannot open database	ConfigurationException
2601, 2627	Duplicate / unique key violation	DuplicateException
515, 8152	NULL insert / data truncation	DataValidationException
547	Foreign key constraint	ValidationException
1205	Deadlock victim	DataException
(all others)	Unknown SQL error	DataException

SQL Error Number Constants

All known SQL error numbers are exposed as public const int fields (e.g., ConnectionFailureNumber, TimeoutNumber, DeadlockNumber) for use in custom switch statements or logging.

Dependencies

Package	Version
CodeFactory.NDF	(project reference)
Microsoft.Data.SqlClient	7.0.1

⚠️ .NET Standard 2.1 support was removed in version 10.x. Use an earlier version if Standard 2.1 is required.

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Solution Structure

NDF-Solution/
├── CodeFactory.NDF/            # Core framework library (netstandard2.1 + net10.0)
│   ├── ManagedException.cs
│   ├── LoggingExtensions.cs
│   ├── DependencyInjectionLoader.cs
│   └── StandardExceptionMessages.resx
├── CodeFactory.NDF.SQL/        # SQL integration library (net10.0)
│   └── SqlExceptionManagement.cs
└── NDF-Solution.sln

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API Documentation

Full API docs are published at: https://codefactoryllc.github.io/NDF