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LogXML - A XML Logging Class

, 11 May 2003
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A simple XML style logging class for all purposes.

Introduction

Almost everybody needs sometimes something like a logging class. Me too. That is why I wrote such a class to do my logging although there are already some very convenient logging classes like CProtocol by jazper. But I thought of some general approach: Logging with XML.

Possibilities

The probably most interesting point is the possibility to log into a structure. Now you can log in a fairly natural way: simply go down one level if you call a function and after that go up and you will get a log structure that resembles your program's calling tree. All log entries will automatically get the right place.

Usage

Using LogXML is not very difficult. First of all:

  #include "LogXML.h"
Now you can instantiate LogXML by:

  LogXML* log = new LogXML("LogFileName.xml", "ApplicationName");
There are several ways to write a Log Entry, some kind of Log Record can be written by:

  log->Log("Error: Something is not correct. Please Fix.", // Entry
           __FILE__,               // Filename of Source File<
           "myLoggingFunction()"); // Function Name
Or you can write only one line by:

  log->WriteLine("TagName", "This is your Log Entry");

The output (log file) of these examples is:

<?xml-stylesheet href="Log.xsl" type="text/xsl" ?>
<LogFile>
    <AppName>ApplicationName</AppName>
    <Timestamp>1052656519.488</Timestamp>
    <Date>2003-05-11</Date>
    <Time>14:35:19.488</Time>
    <LogItem>
        <Date>2003-05-11</Date>
        <Time>14:35:19.488</Time>
        <Filename>LogXML.cpp</Filename>
        <Entry>Log File opened</Entry>
    </LogItem>
    <LogItem>
        <Date>2003-05-11</Date>
        <Time>14:35:19.488</Time>
        <Filename>C:\Code\LogXML\SampleSourceFile.h</Filename>
        <Function>SampleFunction()</Function>
        <Entry>Error: Something is not correct. Please Fix.</Entry>
    </LogItem>
    <TagName>This is your Log Entry</TagName>
    <LogItem>
        <Date>2003-05-11</Date>
        <Time>14:35:19.488</Time>
        <Filename>LogXML.cpp</Filename>
        <Entry>Log File closed</Entry>
    </LogItem> 
</LogFile>

Annotations

To use such a log file you can use a XML parser like XPath or everything else you want. To convert a file produced by LogXML to something human-readable you can use for example XSL. Since my knowledge of XSL is not the best, I only managed to write a file named Log.XSL that shows Log Records of Level 1, i.e. do not use LogXML::goDown() and use only LogXML::Log() to write entries if you want to use it. And this is our sample Log File shown by Internet Explorer (6.0):



History

  • May 12, 2003 - First Release 1.0.0
     

License

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About the Author

whizer
Web Developer
United Kingdom United Kingdom
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Comments and Discussions

 
SuggestionIs it there ? Pinmember@amitgajjar15-Sep-12 1:09 
GeneralMy opinion PinmemberComaWhite8615-Nov-08 22:54 
GeneralGood idea - wrong tool PinmemberDimka912-May-03 11:15 
GeneralRe: Good idea - wrong tool Pinmembersirrube12-May-03 15:04 
GeneralRe: Good idea - wrong tool Pinmemberwhizer13-May-03 7:50 
GeneralRe: Good idea - wrong tool Pinmemberwhizer13-May-03 7:44 
GeneralRe: Good idea - wrong tool PinsussAnonymous21-May-03 0:51 
GeneralRe: Good idea - wrong tool Pinmemberwhizer21-May-03 4:47 
GeneralRe: Good idea - wrong tool PinmemberHugo Hallman6-Sep-04 3:05 
GeneralRe: Good idea - wrong tool Pinmembertom.schultz5-Oct-04 0:53 
GeneralRe: Good idea - wrong tool PinmemberAndrea8617-Jan-07 1:23 
GeneralRe: Good idea - wrong tool PinmemberS.C.Wong30-Mar-08 1:41 
AnswerRe: Good idea - wrong tool PinmemberDimitris Servis30-Jul-08 2:35 
Questionquestion: the error can be catched? Pinmemberliuty200612-May-03 10:17 
AnswerRe: question: the error can be catched? Pinmemberwhizer13-May-03 7:41 
GeneralPlease comment if you vote Pinmemberwhizer12-May-03 6:43 
Please comment if you vote and write any suggestions you might have to improve LogXML. It is very important for me.
 
Thank you for reading my article. Smile | :)

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