Java

Enter/Leave Context in Logging

Demonstrates EnterContext and LeaveContext using the Chilkat Log API. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkLog log = new CkLog();

    //  Initialize the log object with an initial context tag:
    log.Clear("myLog");

    //  Add some information..
    log.LogInfo("Hello, I'm here...");

    //  Open a sub-context
    log.EnterContext("abc");

    //  New information is now logged within the "abc" context.
    log.LogInfo("This is inside the abc context");
    log.LogError("File not found.");

    //  Perhaps open a new context...
    log.EnterContext("fileInfo");
    log.LogData("filename","something.txt");
    log.LogData("path","/somedir/xyz");
    log.LeaveContext();

    //  Close the "abc" context.
    log.LeaveContext();

    //  Examine the content of the log:
    System.out.println(log.lastErrorText());

    //  This is the output:

    //  myLog:
    //    Hello, I'm here...
    //    abc:
    //      This is inside the abc context
    //      File not found.
    //      fileInfo:
    //        filename: something.txt
    //        path: /somedir/xyz
    //      --fileInfo
    //    --abc
    //  --myLog
  }
}