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""" Unified statistics and reporting plugin """
import sys
import time
import platform
import traceback
import lxml.etree
from Bcfg2.Reporting.Transport import load_transport_from_config, \
TransportError
from Bcfg2.Options import REPORTING_COMMON_OPTIONS
from Bcfg2.Server.Plugin import Statistics, PullSource, Threaded, \
Debuggable, 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(sys.exc_info()[1])
return _real_rpc_call
# pylint: disable=W0223
class Reporting(Statistics, Threaded, PullSource, Debuggable):
""" Unified statistics and reporting plugin """
__rmi__ = Debuggable.__rmi__ + ['Ping', 'GetExtra', 'GetCurrentEntry']
CLIENT_METADATA_FIELDS = ('profile', 'bundles', 'aliases', 'addresses',
'groups', 'categories', 'uuid', 'version')
def __init__(self, core, datastore):
Statistics.__init__(self, core, datastore)
PullSource.__init__(self)
Threaded.__init__(self)
Debuggable.__init__(self)
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)
def start_threads(self):
try:
self.transport = load_transport_from_config(self.core.setup)
except TransportError:
msg = "%s: Failed to load transport: %s" % \
(self.name, traceback.format_exc().splitlines()[-1])
self.logger.error(msg)
raise PluginInitError(msg)
if self.debug_flag:
self.transport.set_debug(self.debug_flag)
def set_debug(self, debug):
rv = Debuggable.set_debug(self, debug)
if self.transport is not None:
self.transport.set_debug(debug)
return rv
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_FIELDS:
try:
value = getattr(client, field)
except AttributeError:
continue
if value:
if isinstance(value, set):
value = [v for v in value]
cdata[field] = value
# try 3 times to store the data
for i in [1, 2, 3]:
try:
self.transport.store(
client.hostname, cdata,
lxml.etree.tostring(
stats,
xml_declaration=False))
self.debug_log("%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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