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Split stats in several files

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nicolargo 2016-03-20 15:03:02 +01:00
parent 98d1e5cc4c
commit 37a95425c5
6 changed files with 249 additions and 175 deletions
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4
glances/client.py
View File

@ -26,7 +26,7 @@ import sys
from glances.compat import Fault, ProtocolError, ServerProxy, Transport
from glances.globals import version
from glances.logger import logger
from glances.stats import GlancesStatsClient
from glances.stats_client import GlancesStatsClient
from glances.outputs.glances_curses import GlancesCursesClient
@ -139,7 +139,7 @@ class GlancesClient(object):
if self.client_mode == 'snmp':
logger.info("Trying to grab stats by SNMP...")
from glances.stats import GlancesStatsClientSNMP
from glances.stats_client_snmp import GlancesStatsClientSNMP
# Init stats
self.stats = GlancesStatsClientSNMP(config=self.config, args=self.args)

2
glances/server.py
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@ -28,7 +28,7 @@ from glances.compat import SimpleXMLRPCRequestHandler, SimpleXMLRPCServer
from glances.autodiscover import GlancesAutoDiscoverClient
from glances.globals import version
from glances.logger import logger
from glances.stats import GlancesStatsServer
from glances.stats_server import GlancesStatsServer
from glances.timer import Timer

173
glances/stats.py
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@ -2,7 +2,7 @@
#
# This file is part of Glances.
#
# Copyright (C) 2015 Nicolargo <nicolas@nicolargo.com>
# Copyright (C) 2016 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
@ -21,23 +21,12 @@
import collections
import os
import re
import sys
import threading
from glances.compat import iteritems
from glances.globals import exports_path, plugins_path, sys_path
from glances.logger import logger
# SNMP OID regexp pattern to short system name dict
oid_to_short_system_name = {'.*Linux.*': 'linux',
'.*Darwin.*': 'mac',
'.*BSD.*': 'bsd',
'.*Windows.*': 'windows',
'.*Cisco.*': 'cisco',
'.*VMware ESXi.*': 'esxi',
'.*NetApp.*': 'netapp'}
class GlancesStats(object):
@ -240,163 +229,3 @@ class GlancesStats(object):
# Close plugins
for p in self._plugins:
self._plugins[p].exit()
class GlancesStatsServer(GlancesStats):
"""This class stores, updates and gives stats for the server."""
def __init__(self, config=None):
# Init the stats
super(GlancesStatsServer, self).__init__(config)
# Init the all_stats dict used by the server
# all_stats is a dict of dicts filled by the server
self.all_stats = collections.defaultdict(dict)
def update(self, input_stats=None):
"""Update the stats."""
input_stats = input_stats or {}
# Force update of all the stats
super(GlancesStatsServer, self).update()
# Build all_stats variable (concatenation of all the stats)
self.all_stats = self._set_stats(input_stats)
def _set_stats(self, input_stats):
"""Set the stats to the input_stats one."""
# Build the all_stats with the get_raw() method of the plugins
ret = collections.defaultdict(dict)
for p in self._plugins:
ret[p] = self._plugins[p].get_raw()
return ret
def getAll(self):
"""Return the stats as a list."""
return self.all_stats
def getAllAsDict(self):
"""Return the stats as a dict."""
# Python > 2.6
# return {p: self.all_stats[p] for p in self._plugins}
ret = {}
for p in self._plugins:
ret[p] = self.all_stats[p]
return ret
class GlancesStatsClient(GlancesStats):
"""This class stores, updates and gives stats for the client."""
def __init__(self, config=None, args=None):
"""Init the GlancesStatsClient class."""
super(GlancesStatsClient, self).__init__()
# Init the configuration
self.config = config
# Init the arguments
self.args = args
# Load plugins and exports
self.load_plugins_and_exports(self.args)
def set_plugins(self, input_plugins):
"""Set the plugin list according to the Glances server."""
header = "glances_"
for item in input_plugins:
# Import the plugin
plugin = __import__(header + item)
# Add the plugin to the dictionary
# The key is the plugin name
# for example, the file glances_xxx.py
# generate self._plugins_list["xxx"] = ...
logger.debug("Server uses {0} plugin".format(item))
self._plugins[item] = plugin.Plugin()
# Restoring system path
sys.path = sys_path
def update(self, input_stats):
"""Update all the stats."""
# For Glances client mode
for p in input_stats:
# Update plugin stats with items sent by the server
self._plugins[p].set_stats(input_stats[p])
# Update the views for the updated stats
self._plugins[p].update_views()
class GlancesStatsClientSNMP(GlancesStats):
"""This class stores, updates and gives stats for the SNMP client."""
def __init__(self, config=None, args=None):
super(GlancesStatsClientSNMP, self).__init__()
# Init the configuration
self.config = config
# Init the arguments
self.args = args
# OS name is used because OID is differents between system
self.os_name = None
# Load plugins and export modules
self.load_plugins_and_exports(self.args)
def check_snmp(self):
"""Chek if SNMP is available on the server."""
# Import the SNMP client class
from glances.snmp import GlancesSNMPClient
# Create an instance of the SNMP client
clientsnmp = GlancesSNMPClient(host=self.args.client,
port=self.args.snmp_port,
version=self.args.snmp_version,
community=self.args.snmp_community,
user=self.args.snmp_user,
auth=self.args.snmp_auth)
# If we cannot grab the hostname, then exit...
ret = clientsnmp.get_by_oid("1.3.6.1.2.1.1.5.0") != {}
if ret:
# Get the OS name (need to grab the good OID...)
oid_os_name = clientsnmp.get_by_oid("1.3.6.1.2.1.1.1.0")
try:
self.system_name = self.get_system_name(oid_os_name['1.3.6.1.2.1.1.1.0'])
logger.info("SNMP system name detected: {0}".format(self.system_name))
except KeyError:
self.system_name = None
logger.warning("Cannot detect SNMP system name")
return ret
def get_system_name(self, oid_system_name):
"""Get the short os name from the OS name OID string."""
short_system_name = None
if oid_system_name == '':
return short_system_name
# Find the short name in the oid_to_short_os_name dict
for r, v in iteritems(oid_to_short_system_name):
if re.search(r, oid_system_name):
short_system_name = v
break
return short_system_name
def update(self):
"""Update the stats using SNMP."""
# For each plugins, call the update method
for p in self._plugins:
# Set the input method to SNMP
self._plugins[p].input_method = 'snmp'
self._plugins[p].short_system_name = self.system_name
try:
self._plugins[p].update()
except Exception as e:
logger.error("Update {0} failed: {1}".format(p, e))

68
glances/stats_client.py Normal file
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@ -0,0 +1,68 @@
# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2016 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the 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.
#
# Glances 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""The stats server manager."""
import sys
from glances.stats import GlancesStats
from glances.globals import sys_path
from glances.logger import logger
class GlancesStatsClient(GlancesStats):
"""This class stores, updates and gives stats for the client."""
def __init__(self, config=None, args=None):
"""Init the GlancesStatsClient class."""
super(GlancesStatsClient, self).__init__()
# Init the configuration
self.config = config
# Init the arguments
self.args = args
# Load plugins and exports
self.load_plugins_and_exports(self.args)
def set_plugins(self, input_plugins):
"""Set the plugin list according to the Glances server."""
header = "glances_"
for item in input_plugins:
# Import the plugin
plugin = __import__(header + item)
# Add the plugin to the dictionary
# The key is the plugin name
# for example, the file glances_xxx.py
# generate self._plugins_list["xxx"] = ...
logger.debug("Server uses {0} plugin".format(item))
self._plugins[item] = plugin.Plugin()
# Restoring system path
sys.path = sys_path
def update(self, input_stats):
"""Update all the stats."""
# For Glances client mode
for p in input_stats:
# Update plugin stats with items sent by the server
self._plugins[p].set_stats(input_stats[p])
# Update the views for the updated stats
self._plugins[p].update_views()

109
glances/stats_client_snmp.py Normal file
View File

@ -0,0 +1,109 @@
# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2016 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the 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.
#
# Glances 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""The stats manager."""
import re
from glances.stats import GlancesStats
from glances.compat import iteritems
from glances.logger import logger
# SNMP OID regexp pattern to short system name dict
oid_to_short_system_name = {'.*Linux.*': 'linux',
'.*Darwin.*': 'mac',
'.*BSD.*': 'bsd',
'.*Windows.*': 'windows',
'.*Cisco.*': 'cisco',
'.*VMware ESXi.*': 'esxi',
'.*NetApp.*': 'netapp'}
class GlancesStatsClientSNMP(GlancesStats):
"""This class stores, updates and gives stats for the SNMP client."""
def __init__(self, config=None, args=None):
super(GlancesStatsClientSNMP, self).__init__()
# Init the configuration
self.config = config
# Init the arguments
self.args = args
# OS name is used because OID is differents between system
self.os_name = None
# Load plugins and export modules
self.load_plugins_and_exports(self.args)
def check_snmp(self):
"""Chek if SNMP is available on the server."""
# Import the SNMP client class
from glances.snmp import GlancesSNMPClient
# Create an instance of the SNMP client
clientsnmp = GlancesSNMPClient(host=self.args.client,
port=self.args.snmp_port,
version=self.args.snmp_version,
community=self.args.snmp_community,
user=self.args.snmp_user,
auth=self.args.snmp_auth)
# If we cannot grab the hostname, then exit...
ret = clientsnmp.get_by_oid("1.3.6.1.2.1.1.5.0") != {}
if ret:
# Get the OS name (need to grab the good OID...)
oid_os_name = clientsnmp.get_by_oid("1.3.6.1.2.1.1.1.0")
try:
self.system_name = self.get_system_name(oid_os_name['1.3.6.1.2.1.1.1.0'])
logger.info("SNMP system name detected: {0}".format(self.system_name))
except KeyError:
self.system_name = None
logger.warning("Cannot detect SNMP system name")
return ret
def get_system_name(self, oid_system_name):
"""Get the short os name from the OS name OID string."""
short_system_name = None
if oid_system_name == '':
return short_system_name
# Find the short name in the oid_to_short_os_name dict
for r, v in iteritems(oid_to_short_system_name):
if re.search(r, oid_system_name):
short_system_name = v
break
return short_system_name
def update(self):
"""Update the stats using SNMP."""
# For each plugins, call the update method
for p in self._plugins:
# Set the input method to SNMP
self._plugins[p].input_method = 'snmp'
self._plugins[p].short_system_name = self.system_name
try:
self._plugins[p].update()
except Exception as e:
logger.error("Update {0} failed: {1}".format(p, e))

68
glances/stats_server.py Normal file
View File

@ -0,0 +1,68 @@
# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2016 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the 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.
#
# Glances 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""The stats server manager."""
import collections
from glances.stats import GlancesStats
class GlancesStatsServer(GlancesStats):
"""This class stores, updates and gives stats for the server."""
def __init__(self, config=None):
# Init the stats
super(GlancesStatsServer, self).__init__(config)
# Init the all_stats dict used by the server
# all_stats is a dict of dicts filled by the server
self.all_stats = collections.defaultdict(dict)
def update(self, input_stats=None):
"""Update the stats."""
input_stats = input_stats or {}
# Force update of all the stats
super(GlancesStatsServer, self).update()
# Build all_stats variable (concatenation of all the stats)
self.all_stats = self._set_stats(input_stats)
def _set_stats(self, input_stats):
"""Set the stats to the input_stats one."""
# Build the all_stats with the get_raw() method of the plugins
ret = collections.defaultdict(dict)
for p in self._plugins:
ret[p] = self._plugins[p].get_raw()
return ret
def getAll(self):
"""Return the stats as a list."""
return self.all_stats
def getAllAsDict(self):
"""Return the stats as a dict."""
# Python > 2.6
# return {p: self.all_stats[p] for p in self._plugins}
ret = {}
for p in self._plugins:
ret[p] = self.all_stats[p]
return ret