text: # This program is free software; you can redistribute it and/or modify
  # it under the terms of the (LGPL) GNU Lesser General Public License as
  # published by the Free Software Foundation; either version 3 of the 
  # License, or (at your option) any later version.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU Library Lesser General Public License for more details at
  # ( http://www.gnu.org/licenses/lgpl.html ).
  #
  # You should have received a copy of the GNU Lesser General Public License
  # along with this program; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  # written by: Jeff Ortel ( jortel@redhat.com )
  
  """
  The I{metrics} module defines classes and other resources
  designed for collecting and reporting performance metrics.
  """
  
  import time
  from logging import getLogger
  from suds import *
  from math import modf
  
  log = getLogger(__name__)
  
  class Timer:
  
      def __init__(self):
          self.started = 0
          self.stopped = 0
  
      def start(self):
          self.started = time.time()
          self.stopped = 0
          return self
  
      def stop(self):
          if self.started > 0:
              self.stopped = time.time()
          return self
  
      def duration(self):
          return ( self.stopped - self.started )
  
      def __str__(self):
          if self.started == 0:
              return 'not-running'
          if self.started > 0 and self.stopped == 0:
              return 'started: %d (running)' % self.started
          duration = self.duration()
          jmod = ( lambda m : (m[1], m[0]*1000) )
          if duration < 1:
              ms = (duration*1000)
              return '%d (ms)' % ms           
          if duration < 60:
              m = modf(duration)
              return '%d.%.3d (seconds)' % jmod(m)
          m = modf(duration/60)
          return '%d.%.3d (minutes)' % jmod(m)
  