source: trunk/jobmond/gmetric.py @ 359

Last change on this file since 359 was 353, checked in by bastiaans, 16 years ago

jobmond/jobmond.conf:

  • added GMETRIC_TARGET

jobmond/gmetric.py:

  • checkin of native python gmetric support, thanks to Nick Galbreath

jobmond/jobmond.py:

  • added handling of GMETRIC_TARGET
  • GMOND_CONF is now deprecated (GMETRIC_TARGET should be used) but we are still backwards compatible
File size: 3.7 KB
RevLine 
[353]1#!/usr/bin/env python
2
3# This is the MIT License
4# http://www.opensource.org/licenses/mit-license.php
5#
6# Copyright (c) 2007 Nick Galbreath
7#
8# Permission is hereby granted, free of charge, to any person obtaining a copy
9# of this software and associated documentation files (the "Software"), to deal
10# in the Software without restriction, including without limitation the rights
11# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12# copies of the Software, and to permit persons to whom the Software is
13# furnished to do so, subject to the following conditions:
14#
15# The above copyright notice and this permission notice shall be included in
16# all copies or substantial portions of the Software.
17#
18# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24# THE SOFTWARE.
25#
26
27#
28# Version 1.0 - 21-April2-2007
29#
30
31#
32# Modified by: Ramon Bastiaans
33# For the Job Monarch Project, see: https://subtrac.sara.nl/oss/jobmonarch/
34#
35# added: DEFAULT_TYPE for Gmetric's
36# added: checkHostProtocol to determine if target is multicast or not
37# changed: allow default for Gmetric constructor
38# changed: allow defaults for all send() values except dmax
39#
40
41import xdrlib, socket
42
43GMETRIC_DEFAULT_TYPE    = 'string'
44GMETRIC_DEFAULT_HOST    = '127.0.0.1'
45GMETRIC_DEFAULT_PORT    = '8649'
46
47class Gmetric:
48
49        global GMETRIC_DEFAULT_HOST, GMETRIC_DEFAULT_PORT
50
51        slope           = { 'zero' : 0, 'positive' : 1, 'negative' : 2, 'both' : 3, 'unspecified' : 4 }
52        type            = ( '', 'string', 'uint16', 'int16', 'uint32', 'int32', 'float', 'double', 'timestamp' )
53        protocol        = ( 'udp', 'multicast' )
54
55        def __init__( self, host=GMETRIC_DEFAULT_HOST, port=GMETRIC_DEFAULT_PORT ):
56
57                global GMETRIC_DEFAULT_TYPE
58
59                self.prot       = self.checkHostProtocol( host )
60                self.msg        = xdrlib.Packer()
61                self.socket     = socket.socket( socket.AF_INET, socket.SOCK_DGRAM )
62
63                if self.prot not in self.protocol:
64
65                        raise ValueError( "Protocol must be one of: " + str( self.protocol ) )
66
67                if self.prot == 'multicast':
68
69                        self.socket.setsockopt( socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 20 )
70
71                self.hostport   = ( host, int( port ) )
72                self.type       = GMETRIC_DEFAULT_TYPE
73                self.unitstr    = ''
74                self.slopestr   = 'both'
75                self.tmax       = 60
76
77        def checkHostProtocol( self, ip ):
78
79                MULTICAST_ADDRESS_MIN   = ( "224", "0", "0", "0" )
80                MULTICAST_ADDRESS_MAX   = ( "239", "255", "255", "255" )
81
82                ip_fields               = ip.split( '.' )
83
84                if ip_fields >= MULTICAST_ADDRESS_MIN and ip_fields <= MULTICAST_ADDRESS_MAX:
85
86                        return 'multicast'
87                else:
88                        return 'udp'
89
90        def send( self, name, value, dmax ):
91
92                msg             = self.makexdr( name, value, self.type, self.unitstr, self.slopestr, self.tmax, dmax )
93
94                return self.socket.sendto( msg, self.hostport )
95                     
96        def makexdr( self, name, value, typestr, unitstr, slopestr, tmax, dmax ):
97
98                if slopestr not in self.slope:
99
100                        raise ValueError( "Slope must be one of: " + str( self.slope.keys() ) )
101
102                if typestr not in self.type:
103
104                        raise ValueError( "Type must be one of: " + str( self.type ) )
105
106                if len( name ) == 0:
107
108                        raise ValueError( "Name must be non-empty" )
109
110                self.msg.reset()
111                self.msg.pack_int( 0 )
112                self.msg.pack_string( typestr )
113                self.msg.pack_string( name )
114                self.msg.pack_string( str( value ) )
115                self.msg.pack_string( unitstr )
116                self.msg.pack_int( self.slope[ slopestr ] )
117                self.msg.pack_uint( int( tmax ) )
118                self.msg.pack_uint( int( dmax ) )
119
120                return self.msg.get_buffer()
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