# Path: opennode/oms/endpoint/ssh/detached.py
# class DetachedProtocol(object):
#     """This represents a detached background protocol used to execute commands
#     in background and redirect output to logs"""
# 
#     def __init__(self, interaction=None):
#         self.terminal = self
#         self.protocol = self
#         self.path = ['']
#         self.use_security_proxy = False
#         if interaction is None:
#             auth = getUtility(IAuthentication)
#             self.interaction = new_interaction(auth.getPrincipal('root'))
#         else:
#             self.interaction = interaction
# 
#     @property
#     def principal(self):
#         return self.interaction.participations[0].principal
# 
#     def write(self, *args, **kwargs):
#         data = ''.join(map(str, args))
#         if get_config().getboolean('general', 'log_detached', False):
#             log.msg("DETACHED: %s" % data, system='omsh-detached', **kwargs)
# 
# Path: opennode/oms/util.py
# def subscription_factory(cls, *args, **kwargs):
#     """Utility which allows to to quickly register a subscription adapters which returns new
#     instantiated objects of a given class
# 
#     >>> provideSubscriptionAdapter(subscription_factory(MetricsDaemonProcess), adapts=(IProc,))
# 
#     """
# 
#     class SubscriptionFactoryWrapper(object):
#         def __new__(self, *_ignore):
#             return cls(*args)
# 
#     interfaces = get_direct_interfaces(cls)
#     classImplements(SubscriptionFactoryWrapper, *interfaces)
#     return SubscriptionFactoryWrapper
# 
# def async_sleep(secs):
#     """Util which helps writing synchronous looking code with
#     defer.inlineCallbacks.
# 
#     Returns a deferred which is triggered after `secs` seconds.
# 
#     """
# 
#     d = defer.Deferred()
#     reactor.callLater(secs, d.callback, None)
#     return d
# 
# Path: opennode/oms/model/traversal.py
# def canonical_path(item):
#     path = []
#     from opennode.oms.security.authentication import sudo
#     while item:
#         p = sudo(follow_symlinks(sudo(item)))
#         assert p.__name__ is not None, '%s.__name__ is None' % p
#         path.insert(0, p.__name__)
#         item = p.__parent__
#     return '/'.join(path)
# 
# def traverse_path(obj, path):
#     """Starting from the given object, traverses all its descendant
#     objects to find an object that matches the given path.
# 
#     Returns a tuple that contains the object up to which the traversal
#     was successful plus all objects that led to that object, and the
#     part of the path that could not be resolved.
# 
#     """
#     path = parse_path(path)
# 
#     if not path:
#         return [obj], []
# 
#     ret = [obj]
#     while path:
#         name = path[0]
#         try:
#             traverser = ITraverser(ret[-1])
#         except TypeError:
#             break
# 
#         next_obj = follow_symlinks(traverser.traverse(name))
# 
#         if not next_obj:
#             break
# 
#         ret.append(next_obj)
#         path = path[1:]
# 
#     return ret[1:], path


from collections import deque
from twisted.internet import defer
from twisted.python import log
from zope.component import provideSubscriptionAdapter
from zope.interface import implements
from zope.keyreference.interfaces import NotYet
from opennode.oms.endpoint.ssh.detached import DetachedProtocol
from opennode.oms.model.model.proc import IProcess, Proc, DaemonProcess
from opennode.oms.model.model.search import ReindexAction
from opennode.oms.util import subscription_factory, async_sleep
from opennode.oms.zodb import db
from opennode.oms.model.model.events import IModelDeletedEvent
from opennode.oms.model.traversal import canonical_path, traverse_path



class BlackHoleQueue(object):
    def append(self, val):
        pass


class IndexerDaemonProcess(DaemonProcess):
    implements(IProcess)

    __name__ = "indexer"

    queue = deque()

    black_hole = BlackHoleQueue()

    @defer.inlineCallbacks
    def run(self):
        while True:
            try:
                if not self.paused:
                    if IndexerDaemonProcess.queue == self.black_hole:

# Path: opennode/oms/endpoint/ssh/detached.py
# class DetachedProtocol(object):
#     """This represents a detached background protocol used to execute commands
#     in background and redirect output to logs"""
# 
#     def __init__(self, interaction=None):
#         self.terminal = self
#         self.protocol = self
#         self.path = ['']
#         self.use_security_proxy = False
#         if interaction is None:
#             auth = getUtility(IAuthentication)
#             self.interaction = new_interaction(auth.getPrincipal('root'))
#         else:
#             self.interaction = interaction
# 
#     @property
#     def principal(self):
#         return self.interaction.participations[0].principal
# 
#     def write(self, *args, **kwargs):
#         data = ''.join(map(str, args))
#         if get_config().getboolean('general', 'log_detached', False):
#             log.msg("DETACHED: %s" % data, system='omsh-detached', **kwargs)
# 
# Path: opennode/oms/util.py
# def subscription_factory(cls, *args, **kwargs):
#     """Utility which allows to to quickly register a subscription adapters which returns new
#     instantiated objects of a given class
# 
#     >>> provideSubscriptionAdapter(subscription_factory(MetricsDaemonProcess), adapts=(IProc,))
# 
#     """
# 
#     class SubscriptionFactoryWrapper(object):
#         def __new__(self, *_ignore):
#             return cls(*args)
# 
#     interfaces = get_direct_interfaces(cls)
#     classImplements(SubscriptionFactoryWrapper, *interfaces)
#     return SubscriptionFactoryWrapper
# 
# def async_sleep(secs):
#     """Util which helps writing synchronous looking code with
#     defer.inlineCallbacks.
# 
#     Returns a deferred which is triggered after `secs` seconds.
# 
#     """
# 
#     d = defer.Deferred()
#     reactor.callLater(secs, d.callback, None)
#     return d
# 
# Path: opennode/oms/model/traversal.py
# def canonical_path(item):
#     path = []
#     from opennode.oms.security.authentication import sudo
#     while item:
#         p = sudo(follow_symlinks(sudo(item)))
#         assert p.__name__ is not None, '%s.__name__ is None' % p
#         path.insert(0, p.__name__)
#         item = p.__parent__
#     return '/'.join(path)
# 
# def traverse_path(obj, path):
#     """Starting from the given object, traverses all its descendant
#     objects to find an object that matches the given path.
# 
#     Returns a tuple that contains the object up to which the traversal
#     was successful plus all objects that led to that object, and the
#     part of the path that could not be resolved.
# 
#     """
#     path = parse_path(path)
# 
#     if not path:
#         return [obj], []
# 
#     ret = [obj]
#     while path:
#         name = path[0]
#         try:
#             traverser = ITraverser(ret[-1])
#         except TypeError:
#             break
# 
#         next_obj = follow_symlinks(traverser.traverse(name))
# 
#         if not next_obj:
#             break
# 
#         ret.append(next_obj)
#         path = path[1:]
# 
#     return ret[1:], path


# Path: opennode/oms/backend/indexer.py
from collections import deque
from twisted.internet import defer
from twisted.python import log
from zope.component import provideSubscriptionAdapter
from zope.interface import implements
from zope.keyreference.interfaces import NotYet
from opennode.oms.endpoint.ssh.detached import DetachedProtocol
from opennode.oms.model.model.proc import IProcess, Proc, DaemonProcess
from opennode.oms.model.model.search import ReindexAction
from opennode.oms.util import subscription_factory, async_sleep
from opennode.oms.zodb import db
from opennode.oms.model.model.events import IModelDeletedEvent
from opennode.oms.model.traversal import canonical_path, traverse_path




class BlackHoleQueue(object):
    def append(self, val):
        pass


class IndexerDaemonProcess(DaemonProcess):
    implements(IProcess)

    __name__ = "indexer"

    queue = deque()

    black_hole = BlackHoleQueue()

    @defer.inlineCallbacks
    def run(self):
        while True:
            try:
                if not self.paused:
                    if IndexerDaemonProcess.queue == self.black_hole:

                        IndexerDaemonProcess.queue = deque()