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"""Calxeda: sensor.py"""
# Copyright (c) 2012, Calxeda Inc.
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of Calxeda Inc. nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
# DAMAGE.
from cxmanage import get_tftp, get_nodes, get_node_strings, run_command
# pylint: disable=R0914
def sensor_command(args):
"""read sensor values from a cluster or host"""
tftp = get_tftp(args)
nodes = get_nodes(args, tftp)
if not args.quiet:
print "Getting sensor readings..."
results, errors = run_command(args, nodes, "get_sensors",
args.sensor_name)
sensors = {}
for node in nodes:
if node in results:
for sensor_name, sensor in results[node].iteritems():
if not sensor_name in sensors:
sensors[sensor_name] = []
reading = sensor.sensor_reading.replace("(+/- 0) ", "")
try:
value = float(reading.split()[0])
suffix = reading.lstrip("%f " % value)
sensors[sensor_name].append((node, value, suffix))
except ValueError:
sensors[sensor_name].append((node, reading, ""))
node_strings = get_node_strings(args, results, justify=True)
jsize = len(node_strings.itervalues().next())
for sensor_name, readings in sensors.iteritems():
print sensor_name
for node, reading, suffix in readings:
print "%s: %.2f %s" % (node_strings[node], reading, suffix)
try:
if all(suffix == x[2] for x in readings):
minimum = min(x[1] for x in readings)
maximum = max(x[1] for x in readings)
average = sum(x[1] for x in readings) / len(readings)
print "%s: %.2f %s" % ("Minimum".ljust(jsize), minimum, suffix)
print "%s: %.2f %s" % ("Maximum".ljust(jsize), maximum, suffix)
print "%s: %.2f %s" % ("Average".ljust(jsize), average, suffix)
except ValueError:
pass
print
if not args.quiet and errors:
print "Some errors occured during the command.\n"
return len(errors) > 0
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