HTML Logger, Portable and Thread-Safe

Environment: VC++ 6.0, XP

Introduction

I needed to create an HTML logger that would be portable across Win32 and VXWorks OSs. This code was written in a weekend, so don't judge it severely.

What the Code Does

This code will help you create colored, clear-to-read HTML logs from any C++ applications. The HTML log generated will be easy to present to a user: You just need to give a browser the generated file URL and refresh the browser when the log changes.

This code does not use MFC or any other library. To provide thread safety, there are a couple of classes (namely CLock and CGuard) that help make the code safe.

Furthermore, there are additional helper classes that hide nasty details:

  1. CGenFile—hides the file access details.
  2. CLogFont—generally an implementation of the HTML font tag.
  3. CLogColor—an implementation of the HTML color.
  4. CSmartString—a string class.

Using the Code

Instantiate CHtmlLogger in your code, create the log, and then create as many HTML tables (reports) as you wish.

  CHtmlLogger Log;
  Log.Create( "FirstHMLLog.htm" );

  //Create a table with three columns
  Log.CreateTable( 3, "First HTML log" );

  //Fill the columns
  Log.SetColumn( 0, "Heading1" );
  Log.SetColumn( 1, "Heading2" );
  Log.SetColumn( 2, "Heading3" );

  //Add the line specifying the line type (header in this case)
  Log.AddLine( 0, CHtmlLogger::LT_Header );

Kindergarten stuff, right? The return values validation was removed for clarity. You should look at the sample provided to see the full API. The sample will create the sample log you see in the picture.

Enjoy...

Downloads

Download demo project - 32 Kb


Comments

  • A better way.

    Posted by Legacy on 12/17/2002 12:00am

    Originally posted by: Guess Who

    Whenever I create a server application or middleware or anything which has a log that I am interested in; I use an http server. This way you can display the data in real-time by just directing your browser to a certain ip address and port.

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Live Event Date: March 19, 2015 @ 1:00 p.m. ET / 10:00 a.m. PT The 2015 Enterprise Mobile Application Survey asked 250 mobility professionals what their biggest mobile challenges are, how many employees they are equipping with mobile apps, and their methods for driving value with mobility. Join Dan Woods, Editor and CTO of CITO Research, and Alan Murray, SVP of Products at Apperian, as they break down the results of this survey and discuss how enterprises are using mobile application management and private …

  • The mobile market is white hot. Building a well-crafted product development plan that addresses market research, strategy, design, and development will provide the greatest chance for success. Each phase of an app's lifecycle is critical to the its overall success and feeds into the next step of the process of product development for the app. This white paper examines the five key phases of mobile app creation, one by one, to understand how they work together to help create a successful mobile app.

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date