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import binascii
import difflib
import logging
import lxml.etree
import platform
import time
try:
from django.core.exceptions import MultipleObjectsReturned
except ImportError:
pass
import Bcfg2.Server.Plugin
import Bcfg2.Server.Reports.importscript
from Bcfg2.Server.Reports.reports.models import Client
import Bcfg2.Server.Reports.settings
from Bcfg2.Server.Reports.updatefix import update_database
# for debugging output only
logger = logging.getLogger('Bcfg2.Plugins.DBStats')
class DBStats(Bcfg2.Server.Plugin.Plugin,
Bcfg2.Server.Plugin.ThreadedStatistics,
Bcfg2.Server.Plugin.PullSource):
name = 'DBStats'
__version__ = '$Id$'
def __init__(self, core, datastore):
Bcfg2.Server.Plugin.Plugin.__init__(self, core, datastore)
Bcfg2.Server.Plugin.ThreadedStatistics.__init__(self, core, datastore)
Bcfg2.Server.Plugin.PullSource.__init__(self)
self.cpath = "%s/Metadata/clients.xml" % datastore
self.core = core
logger.debug("Searching for new models to add to the statistics database")
try:
update_database()
except Exception, inst:
logger.debug(str(inst))
logger.debug(str(type(inst)))
def handle_statistic(self, metadata, data):
newstats = data.find("Statistics")
newstats.set('time', time.asctime(time.localtime()))
# ick
data = lxml.etree.tostring(newstats)
ndx = lxml.etree.XML(data)
e = lxml.etree.Element('Node', name=metadata.hostname)
e.append(ndx)
container = lxml.etree.Element("ConfigStatistics")
container.append(e)
# FIXME need to build a metadata interface to expose a list of clients
start = time.time()
for i in [1, 2, 3]:
try:
Bcfg2.Server.Reports.importscript.load_stats(self.core.metadata.clientdata,
container,
0,
logger,
True,
platform.node())
logger.info("Imported data for %s in %s seconds" \
% (metadata.hostname, time.time() - start))
return
except MultipleObjectsReturned, e:
logger.error("DBStats: MultipleObjectsReturned while handling %s: %s" % \
(metadata.hostname, e))
logger.error("DBStats: Data is inconsistent")
break
except:
logger.error("DBStats: Failed to write to db (lock); retrying",
exc_info=1)
logger.error("DBStats: Retry limit failed for %s; aborting operation" \
% metadata.hostname)
def GetExtra(self, client):
c_inst = Client.objects.filter(name=client)[0]
return [(a.entry.kind, a.entry.name) for a in
c_inst.current_interaction.extra()]
def GetCurrentEntry(self, client, e_type, e_name):
try:
c_inst = Client.objects.filter(name=client)[0]
except IndexError:
self.logger.error("Unknown client: %s" % client)
raise Bcfg2.Server.Plugin.PluginExecutionError
result = c_inst.current_interaction.bad().filter(entry__kind=e_type,
entry__name=e_name)
if not result:
raise Bcfg2.Server.Plugin.PluginExecutionError
entry = result[0]
ret = []
data = ('owner', 'group', 'perms')
for t in data:
if getattr(entry.reason, "current_%s" % t) == '':
ret.append(getattr(entry.reason, t))
else:
ret.append(getattr(entry.reason, "current_%s" % t))
if entry.reason.current_diff != '':
if entry.reason.is_binary:
ret.append(binascii.a2b_base64(entry.reason.current_diff))
else:
ret.append('\n'.join(difflib.restore(\
entry.reason.current_diff.split('\n'), 1)))
elif entry.reason.is_binary:
# If len is zero the object was too large to store
raise Bcfg2.Server.Plugin.PluginExecutionError
else:
ret.append(None)
return ret
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