Source code for shinken.objects.trigger

#!/usr/bin/python
# -*- coding: utf-8 -*-

# Copyright (C) 2009-2014:
#    Gabes Jean, naparuba@gmail.com
#    Gerhard Lausser, Gerhard.Lausser@consol.de
#    Gregory Starck, g.starck@gmail.com
#    Hartmut Goebel, h.goebel@goebel-consult.de
#
# This file is part of Shinken.
#
# Shinken is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Shinken 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Shinken.  If not, see <http://www.gnu.org/licenses/>.

import os
import re
import traceback

from shinken.objects.item import Item, Items
from shinken.property import BoolProp, StringProp
from shinken.log import logger
from shinken.trigger_functions import objs, trigger_functions, set_value


[docs]class Trigger(Item): id = 1 # zero is always special in database, so we do not take risk here my_type = 'trigger' properties = Item.properties.copy() properties.update({'trigger_name': StringProp(fill_brok=['full_status']), 'code_src': StringProp(default='', fill_brok=['full_status']), }) running_properties = Item.running_properties.copy() running_properties.update({'code_bin': StringProp(default=None), 'trigger_broker_raise_enabled': BoolProp(default=False) }) # For debugging purpose only (nice name)
[docs] def get_name(self): try: return self.trigger_name except AttributeError: return 'UnnamedTrigger'
[docs] def compile(self): self.code_bin = compile(self.code_src, "<irc>", "exec") # ctx is the object we are evaluating the code. In the code # it will be "self".
[docs] def eval(myself, ctx): self = ctx # Ok we can declare for this trigger call our functions for (n, f) in trigger_functions.iteritems(): locals()[n] = f code = myself.code_bin # Comment? => compile(myself.code_bin, "<irc>", "exec") try: exec code in dict(locals()) except Exception as err: set_value(self, "UNKNOWN: Trigger error: %s" % err, "", 3) logger.error('%s Trigger %s failed: %s ; ' '%s' % (self.host_name, myself.trigger_name, err, traceback.format_exc()))
def __getstate__(self): return {'trigger_name': self.trigger_name, 'code_src': self.code_src, 'trigger_broker_raise_enabled': self.trigger_broker_raise_enabled} def __setstate__(self, d): self.trigger_name = d['trigger_name'] self.code_src = d['code_src'] self.trigger_broker_raise_enabled = d['trigger_broker_raise_enabled']
[docs]class Triggers(Items): name_property = "trigger_name" inner_class = Trigger # We will dig into the path and load all .trig files
[docs] def load_file(self, path): # Now walk for it for root, dirs, files in os.walk(path): for file in files: if re.search("\.trig$", file): p = os.path.join(root, file) try: fd = open(p, 'rU') buf = fd.read() fd.close() except IOError, exp: logger.error("Cannot open trigger file '%s' for reading: %s", p, exp) # ok, skip this one continue self.create_trigger(buf, file[:-5]) # Create a trigger from the string src, and with the good name
[docs] def create_trigger(self, src, name): # Ok, go compile the code t = Trigger({'trigger_name': name, 'code_src': src}) t.compile() # Ok, add it self[t.id] = t return t
[docs] def compile(self): for i in self: i.compile()
[docs] def load_objects(self, conf): global objs objs['hosts'] = conf.hosts objs['services'] = conf.services
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