Class AntPerformanceListener

java.lang.Object
net.sf.antcontrib.perf.AntPerformanceListener
All Implemented Interfaces:
EventListener, org.apache.tools.ant.BuildListener
public class AntPerformanceListener extends Object implements org.apache.tools.ant.BuildListener
This BuildListener keeps track of the total time it takes for each target and task to execute, then prints out the totals when the build is finished. This can help pinpoint the areas where a build is taking a lot of time so optimization efforts can focus where they'll do the most good. Execution times are grouped by targets and tasks, and are sorted from fastest running to slowest running. Output can be saved to a file by setting a property in Ant. Set "performance.log" to the name of a file. This can be set either on the command line with the -D option (-Dperformance.log=/tmp/performance.log) or in the build file itself ().

Developed for use with Antelope, migrated to ant-contrib Oct 2003.

Version:
$Revision: 1.5 $
Author:
Dale Anson, danson@germane-software.com

  • Constructor Details

    • AntPerformanceListener

      public AntPerformanceListener()

  • Method Details

    • buildStarted

      public void buildStarted(org.apache.tools.ant.BuildEvent be)
      Starts a 'running total' stopwatch.
      Specified by:
      buildStarted in interface org.apache.tools.ant.BuildListener

    • buildFinished

      public void buildFinished(org.apache.tools.ant.BuildEvent be)
      Sorts and prints the results.
      Specified by:
      buildFinished in interface org.apache.tools.ant.BuildListener

    • targetStarted

      public void targetStarted(org.apache.tools.ant.BuildEvent be)
      Start timing the given target.
      Specified by:
      targetStarted in interface org.apache.tools.ant.BuildListener

    • targetFinished

      public void targetFinished(org.apache.tools.ant.BuildEvent be)
      Stop timing the given target.
      Specified by:
      targetFinished in interface org.apache.tools.ant.BuildListener

    • taskStarted

      public void taskStarted(org.apache.tools.ant.BuildEvent be)
      Start timing the given task.
      Specified by:
      taskStarted in interface org.apache.tools.ant.BuildListener

    • taskFinished

      public void taskFinished(org.apache.tools.ant.BuildEvent be)
      Stop timing the given task.
      Specified by:
      taskFinished in interface org.apache.tools.ant.BuildListener

    • messageLogged

      public void messageLogged(org.apache.tools.ant.BuildEvent be)
      no-op
      Specified by:
      messageLogged in interface org.apache.tools.ant.BuildListener

    • main

      public static void main(String[] args)