How to write a file asynchronously using logfornet

Question

0.00/5 (No votes)

See more:

I am writing logging info in file using log4net dll, but I want to write the files asynchronously (like using async ) with using log4net dll.

What I have tried:

C#

public static void WriteInfoToLog(string Message, string RequestID, MCashModel.MCashEnums.RequestResponseType type)
        {
            try
            {
                string file_Path = String.Empty;
                string directory_Path = "~/LogDetails/" + DateTime.Today.ToString("yyyy") + "/" + DateTime.Today.ToString("MM") + "/" + DateTime.Today.ToString("dd") + "/" + DateTime.Now.Hour.ToString();
                if (type == MCashEnums.RequestResponseType.Request)
                {
                    file_Path = directory_Path + "/RQ_" + RequestID + ".txt";
                }
                else if (type == MCashEnums.RequestResponseType.Response)
                {
                    file_Path = directory_Path + "/RQ_" + RequestID + ".txt";
                }

                if (!Directory.Exists(System.Web.HttpContext.Current.Server.MapPath(directory_Path)))
                {
                    Directory.CreateDirectory(System.Web.HttpContext.Current.Server.MapPath(directory_Path));
                }
                if (!File.Exists(System.Web.HttpContext.Current.Server.MapPath(file_Path)))
                {
                    File.Create(System.Web.HttpContext.Current.Server.MapPath(file_Path)).Close();
                }
                using (StreamWriter w = File.AppendText(System.Web.HttpContext.Current.Server.MapPath(file_Path)))
                {
                    w.WriteLine("\r\nLog Entry (InFo): ");
                    w.WriteLine("{0}", DateTime.Now.ToString(CultureInfo.InvariantCulture));
                    string err = "URL : " + System.Web.HttpContext.Current.Request.Url.ToString() + "." +
                                  "\r\n XML: \r\n" + Message + ".";
                    //+  "\r\nStack Trace:" + stackTrace + ".";
                    w.WriteLine(err);
                    w.WriteLine("__________________________");
                    w.Flush();
                    w.Close();
                }
            }
            catch (Exception exObject)
            {
                LoggerHelper.LogMessage(exObject.ToString());
            }

        }

Posted 21-Jan-17 19:59pm

kumarravishankar

Updated 22-Jan-17 0:30am

Patrice T

v3

Add a Solution

Comments

Afzaal Ahmad Zeeshan 22-Jan-17 3:59am

Do they support asynchronous pattern?

If not, please consider using Task objects to run saving process in the background.

kumarravishankar 22-Jan-17 5:42am

no its not support

kumarravishankar 22-Jan-17 5:44am

can u please suggest me with sample of code for this

Afzaal Ahmad Zeeshan 22-Jan-17 6:30am

Kindly see Solution 1 for a sample. Surely you would require to rewrite maximum of it in order to fit your needs.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Afzaal Ahmad Zeeshan · Answer 1 · 2017-01-22T00:29:00

Since your API does not provide any asynchronous approach to writing the data to the files, there is only one way to achieve asynchronous pattern; using Task object. Although you can also make use of Threads, but that will be complex. The concept is that you can run any function that returns Task in a background thread or at least release your main UI thread from it. So you encapsulate long running I/O code in a function, and then await it in your code.

C#

// you will call this function.
public async void writeData() {
    // capture the data
    await _writeIo(data);
    // move onwards
}

private Task _writeIo(object data) {
    // your code to write the content.
}

What happens is that the control will move backwards when it hits the _writeIo, and will wait until that function completes. For more on this concept, please consider reading the following MSDN guide, Asynchronous Programming with async and await (C#)[^].

There is a sample, that you can use, on MSDN: Task.Run Method (Action) (System.Threading.Tasks)[^].

Kornfeld Eliyahu Peter · Answer 2 · 2017-01-22T00:30:00

log4net as is DOES NOT support async writings...
You should use one of the variants, like this: NuGet Gallery | Log4Net.Async 2.0.3[^]
Also read about Asynchronous File I/O[^] in .NET...

I would add to it, that IO - by its nature (at least in current OSes) is blocking, so the solution is wrapping it in a separate thread and continue with the main one... It is all good and nice, but in case of logging it can be very problematic, because of the possible volume of the log data (imagine a site with over 10000 concurrent users)...
So in some cases let one user wait for log is better, than opening large number of threads to handle non-blocking IO...
And of course, one have to think carefully what to log and when to log!!!

How to write a file asynchronously using logfornet

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0

Existing Members

...or Join us