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""" Unified statistics and reporting plugin """
import time
import platform
import traceback
from lxml import etree
from Bcfg2.Reporting.Transport import load_transport_from_config, \
TransportError
from Bcfg2.Compat import cPickle
from Bcfg2.Options import REPORTING_COMMON_OPTIONS
from Bcfg2.Server.Plugin import Statistics, PullSource, PluginInitError, \
PluginExecutionError
# required for reporting
try:
import south # pylint: disable=W0611
HAS_SOUTH = True
except ImportError:
HAS_SOUTH = False
def _rpc_call(method):
""" Given the name of a Reporting Transport method, get a function
that defers an XML-RPC call to that method """
def _real_rpc_call(self, *args, **kwargs):
"""Wrapper for calls to the reporting collector"""
try:
return self.transport.rpc(method, *args, **kwargs)
except TransportError:
# this is needed for Admin.Pull
raise PluginExecutionError
return _real_rpc_call
class Reporting(Statistics, PullSource): # pylint: disable=W0223
""" Unified statistics and reporting plugin """
__rmi__ = ['Ping', 'GetExtra', 'GetCurrentEntry']
CLIENT_METADATA_FILEDS = ('profile', 'bundles', 'aliases', 'addresses',
'groups', 'categories', 'uuid', 'version')
def __init__(self, core, datastore):
Statistics.__init__(self, core, datastore)
PullSource.__init__(self)
self.core = core
self.experimental = True
self.whoami = platform.node()
self.transport = None
core.setup.update(REPORTING_COMMON_OPTIONS)
core.setup.reparse()
if not HAS_SOUTH:
msg = "Django south is required for Reporting"
self.logger.error(msg)
raise PluginInitError(msg)
try:
self.transport = load_transport_from_config(core.setup)
except TransportError:
self.logger.error("%s: Failed to load transport: %s" %
(self.name, traceback.format_exc().splitlines()[-1]))
raise PluginInitError
def process_statistics(self, client, xdata):
stats = xdata.find("Statistics")
stats.set('time', time.asctime(time.localtime()))
cdata = {'server': self.whoami}
for field in self.CLIENT_METADATA_FILEDS:
try:
value = getattr(client, field)
except AttributeError:
continue
if value:
if isinstance(value, set):
value = [v for v in value]
cdata[field] = value
try:
interaction_data = cPickle.dumps(dict(
hostname=client.hostname,
metadata=cdata,
stats=etree.tostring(
stats,
xml_declaration=False).decode('UTF-8')))
except: # pylint: disable=W0702
self.logger.error("%s: Failed to build interaction object: %s" %
(self.__class__.__name__,
traceback.format_exc().splitlines()[-1]))
# try 3 times to store the data
for i in [1, 2, 3]:
try:
self.transport.store(client.hostname, interaction_data)
self.logger.debug("%s: Queued statistics data for %s" %
(self.__class__.__name__, client.hostname))
return
except TransportError:
continue
except:
self.logger.error("%s: Attempt %s: Failed to add statistic %s"
% (self.__class__.__name__, i,
traceback.format_exc().splitlines()[-1]))
self.logger.error("%s: Retry limit reached for %s" %
(self.__class__.__name__, client.hostname))
def shutdown(self):
super(Reporting, self).shutdown()
if self.transport:
self.transport.shutdown()
Ping = _rpc_call('Ping')
GetExtra = _rpc_call('GetExtra')
GetCurrentEntry = _rpc_call('GetCurrentEntry')
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