HskAlarms.py

#!/usr/local/bin/python
#
#                               Copyright 2004
#                                     by
#                        The Board of Trustees of the
#                     Leland Stanford Junior University.
#                            All rights reserved.
#

__facility__ = "Online"
__abstract__ = "GLAST LAT Housekeeping server infrastructure"
__author__   = "Jim Panetta <panetta@slac.stanford.edu> SLAC - GLAST I&T"
__date__     = "07/28/04"
__version__  = "$Revision: 1.9 $"
__release__  = "$Name: R04-12-00 $"
__credits__  = "SLAC"

import LATTE.copyright_SLAC
import time
import sys
import os

from LATTE.tools.gAlert       import *

def sendAlert(value, signal, sender, node, level):
  rule   = sender.getRule()
  system = rule.subsystem().name()
  cat    = rule.category().name()
  dispatch = "%s %s" % (system, cat)
  
  if 'MACHINEID' in os.environ:
    machine = int(os.environ['MACHINEID'])
  else:
    machine = 0
  
  measurand = NodeString(node) + sender.getName()
  strVal    = str(value)
  if sender.getEGU() is not None:
    strVal += sender.getEGU().units()
  
  msg = "%s has violated rule %s, causing a %s Alarm.  Value = %s" % \
        (measurand, rule.name(), alertDict[level], strVal)
  alert( msg, dispatch, level, machine)
    
def yellowAlert(value, signal, sender, node):
  sendAlert(value, signal, sender, node, YELLOWALERT)
  
def redAlert(value, signal, sender, node):
  sendAlert(value, signal, sender, node, REDALERT)
  
def yellowPrintMessage(value, signal, sender, node):
  msg =  'Yellow Alarm: ' + NodeString(node) + sender.getName()
  msg += ' is almost out of range: ' + str(value)
  if sender.getEGU() is not None:
    msg += sender.getEGU().units()
  log.warning( msg)
  
def redPrintMessage(value, signal, sender, node):
  msg =  'Red Alarm: ' + NodeString(node) + sender.getName()
  msg += ' is out of range: ' + str(value)
  if sender.getEGU() is not None:
    msg += ' ' + sender.getEGU().units()
  log.error(msg)
  
  ### Useful 
  rs = sender.getRule()
  # print "AAAjim: ruleset name=%s, subsys=%s, cat=%s" % ( rs.name(), rs.subsystem().name(), rs.category().name() )


def NodeString(node):
  """Useful little recursive function to generate a string representation
  of a gDb-like object.
  
  \param node  Any gDb-like object.  (i.e. GLAT, GHSK)
  Object must support getName(), up() and id() methods.
  """
  string = ''
  if node is not None:
    string += NodeString(node.up())
    string += node.getName() 
    if node.id() is not None:
      string += '[' + str(node.id()) + ']'
    string += '.'
  return string

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