SimplePatterns.FunctionExtensions 1.2.0

dotnet add package SimplePatterns.FunctionExtensions --version 1.2.0                
NuGet\Install-Package SimplePatterns.FunctionExtensions -Version 1.2.0                
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="SimplePatterns.FunctionExtensions" Version="1.2.0" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add SimplePatterns.FunctionExtensions --version 1.2.0                
#r "nuget: SimplePatterns.FunctionExtensions, 1.2.0"                
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install SimplePatterns.FunctionExtensions as a Cake Addin
#addin nuget:?package=SimplePatterns.FunctionExtensions&version=1.2.0

// Install SimplePatterns.FunctionExtensions as a Cake Tool
#tool nuget:?package=SimplePatterns.FunctionExtensions&version=1.2.0                

About

SimplePatterns.FunctionExtensions provides some useful extensions over Action and Func<bool> delegates to hide boiler plate code like try-catch block and retries.

ExecuteWithRetry is an extension defined on Func<bool> delegate that executes the delegate until it is true or for the specified number of retries + 1, whichever is earlier.

WrapInExceptionHandler is an extension defined on Action delegate that wraps the action within the specified exception handler and returns a Func<bool> delegate which can be used with ExecuteWithRetry. An additonal extension of this method is provided for Func<bool> delegate. This is useful for handling multiple exceptions from the action. Though it does not produce an optimized implementation, this approach enhances the code readability as shown below.

Action a = someAction;
a.WrapInExceptionHandler<SomeException>().WrapInExceptionHandler<SomeOtherException>().ExecuteWithRetry(2);

These extensions are useful in scenarios like trying to access a file while it is locked by different process or attempting a DB connection when the connection count has reached maximum. In these scenarios, the same operations can be conveniently retried using the above extensions.

Usage

public void ExecuteWithRetry()
{
    ...
    bool status = ((Func<bool>)executor.Executor)
    .ExecuteWithRetry(retries);
    ...
}

public void WrapInExceptionHandler()
{
    ...
    var status = ((Action)executor.Action)
    .WrapInExceptionHandler<NotImplementedException>()
    .ExecuteWithRetry(retries);
    ...
}

private sealed class MockExecutor
{
    public bool Executor()
    {
        return true;
    }

    public void Action()
    {
        throw new NotImplementedException();
    }
}
Product Compatible and additional computed target framework versions.
.NET Framework net461 is compatible.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
  • .NETFramework 4.6.1

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Readme updates.