class CFProcessor(service.Service):
def __init__(self, name, conf):
_log.info("CF_INIT %s", name)
self.name, self.conf = name, conf
self.channel_dict = defaultdict(list)
self.iocs = dict()
self.client = None
self.currentTime = getCurrentTime
self.lock = DeferredLock()
def startService(self):
service.Service.startService(self)
self.running = 1
_log.info("CF_START")
if self.client is None: # For setting up mock test client
"""
Using the default python cf-client. The url, username, and
password are provided by the channelfinder._conf module.
"""
from channelfinder import ChannelFinderClient
self.client = ChannelFinderClient()
try:
cf_props = [
prop['name'] for prop in self.client.getAllProperties()
]
reqd_props = {
'hostName', 'iocName', 'pvStatus', 'time', 'iocid'
}
wl = self.conf.get('infotags', list())
whitelist = [s.strip(', ') for s in wl.split()] \
if wl else wl
# Are any required properties not already present on CF?
properties = reqd_props - set(cf_props)
# Are any whitelisted properties not already present on CF?
# If so, add them too.
properties.update(set(whitelist) - set(cf_props))
owner = self.conf.get('username', 'cfstore')
for prop in properties:
self.client.set(property={u'name': prop, u'owner': owner})
self.whitelist = set(whitelist)
_log.debug('WHITELIST = {}'.format(self.whitelist))
except ConnectionError:
_log.exception("Cannot connect to Channelfinder service")
raise
else:
self.clean_service()
def stopService(self):
service.Service.stopService(self)
# Set channels to inactive and close connection to client
self.running = 0
self.clean_service()
_log.info("CF_STOP")
@defer.inlineCallbacks
def commit(self, transaction_record):
yield self.lock.acquire()
try:
yield deferToThread(self.__commit__, transaction_record)
finally:
self.lock.release()
def __commit__(self, TR):
_log.debug("CF_COMMIT %s", TR.infos.items())
"""
a dictionary with a list of records with their associated property info
pvInfo
{rid: { "pvName":"recordName",
"infoProperties":{propName:value, ...}}}
"""
iocName = TR.infos.get('IOCNAME') or TR.src.port
hostName = TR.infos.get('HOSTNAME') or TR.src.host
owner = TR.infos.get('ENGINEER') or TR.infos.get(
'CF_USERNAME') or self.conf.get('username', 'cfstore')
time = self.currentTime()
pvInfo = {}
for rid, (rname, rtype) in TR.addrec.items():
pvInfo[rid] = {"pvName": rname}
for rid, (recinfos) in TR.recinfos.items():
# find intersection of these sets
recinfo_wl = [p for p in self.whitelist if p in recinfos.keys()]
if recinfo_wl:
pvInfo[rid]['infoProperties'] = list()
for infotag in recinfo_wl:
_log.debug('INFOTAG = {}'.format(infotag))
property = {
u'name': infotag,
u'owner': owner,
u'value': recinfos[infotag]
}
pvInfo[rid]['infoProperties'].append(property)
_log.debug(pvInfo)
pvNames = [info["pvName"] for rid, (info) in pvInfo.items()]
delrec = list(TR.delrec)
_log.info("DELETED records " + str(delrec))
host = TR.src.host
port = TR.src.port
"""The unique identifier for a particular IOC"""
iocid = host + ":" + str(port)
_log.info("CF_COMMIT: " + iocid)
if TR.initial:
"""Add IOC to source list """
self.iocs[iocid] = {
"iocname": iocName,
"hostname": hostName,
"owner": owner,
"time": time,
"channelcount": 0
}
if not TR.connected:
delrec.extend(self.channel_dict.keys())
for pv in pvNames:
self.channel_dict[pv].append(
iocid) # add iocname to pvName in dict
self.iocs[iocid]["channelcount"] += 1
for pv in delrec:
if iocid in self.channel_dict[pv]:
self.channel_dict[pv].remove(iocid)
if iocid in self.iocs:
self.iocs[iocid]["channelcount"] -= 1
if self.iocs[iocid]['channelcount'] == 0:
self.iocs.pop(iocid, None)
elif self.iocs[iocid]['channelcount'] < 0:
_log.error("channel count negative!")
if len(self.channel_dict[pv]
) <= 0: # case: channel has no more iocs
del self.channel_dict[pv]
poll(__updateCF__, self.client, pvInfo, delrec, self.channel_dict,
self.iocs, hostName, iocName, iocid, owner, time)
dict_to_file(self.channel_dict, self.iocs, self.conf)
def clean_service(self):
"""
Marks all channels as "Inactive" until the recsync server is back up
"""
sleep = 1
retry_limit = 5
owner = self.conf.get('username', 'cfstore')
while 1:
try:
_log.debug("Cleaning service...")
channels = self.client.findByArgs([('pvStatus', 'Active')])
if channels is not None:
new_channels = []
for ch in channels or []:
new_channels.append(ch[u'name'])
if len(new_channels) > 0:
self.client.update(property={
u'name': 'pvStatus',
u'owner': owner,
u'value': "Inactive"
},
channelNames=new_channels)
_log.debug("Service clean.")
return
except RequestException:
_log.exception("cleaning failed, retrying: ")
time.sleep(min(60, sleep))
sleep *= 1.5
if self.running == 0 and sleep >= retry_limit:
_log.debug("Abandoning clean.")
return
class CFProcessor(service.Service):
def __init__(self, name, conf):
_log.info("CF_INIT %s", name)
self.name, self.conf = name, conf
self.channel_dict = defaultdict(list)
self.iocs = dict()
self.client = None
self.currentTime = getCurrentTime
self.lock = DeferredLock()
def startService(self):
service.Service.startService(self)
# Returning a Deferred is not supported by startService(),
# so instead attempt to acquire the lock synchonously!
d = self.lock.acquire()
if not d.called:
d.cancel()
service.Service.stopService(self)
raise RuntimeError(
'Failed to acquired CF Processor lock for service start')
try:
self._startServiceWithLock()
except:
service.Service.stopService(self)
raise
finally:
self.lock.release()
def _startServiceWithLock(self):
_log.info("CF_START")
if self.client is None: # For setting up mock test client
"""
Using the default python cf-client. The url, username, and
password are provided by the channelfinder._conf module.
"""
from channelfinder import ChannelFinderClient
self.client = ChannelFinderClient()
try:
cf_props = [
prop['name'] for prop in self.client.getAllProperties()
]
if (self.conf.get('alias', 'default') == 'on'):
reqd_props = {
'hostName', 'iocName', 'pvStatus', 'time', 'iocid',
'alias'
}
else:
reqd_props = {
'hostName', 'iocName', 'pvStatus', 'time', 'iocid'
}
wl = self.conf.get('infotags', list())
whitelist = [s.strip(', ') for s in wl.split()] \
if wl else wl
# Are any required properties not already present on CF?
properties = reqd_props - set(cf_props)
# Are any whitelisted properties not already present on CF?
# If so, add them too.
properties.update(set(whitelist) - set(cf_props))
owner = self.conf.get('username', 'cfstore')
for prop in properties:
self.client.set(property={u'name': prop, u'owner': owner})
self.whitelist = set(whitelist)
_log.debug('WHITELIST = {}'.format(self.whitelist))
except ConnectionError:
_log.exception("Cannot connect to Channelfinder service")
raise
else:
if self.conf.getboolean('cleanOnStart', True):
self.clean_service()
def stopService(self):
service.Service.stopService(self)
return self.lock.run(self._stopServiceWithLock)
def _stopServiceWithLock(self):
# Set channels to inactive and close connection to client
if self.conf.getboolean('cleanOnStop', True):
self.clean_service()
_log.info("CF_STOP")
# @defer.inlineCallbacks # Twisted v16 does not support cancellation!
def commit(self, transaction_record):
return self.lock.run(self._commitWithLock, transaction_record)
def _commitWithLock(self, TR):
self.cancelled = False
t = deferToThread(self._commitWithThread, TR)
def cancelCommit(d):
self.cancelled = True
d.callback(None)
d = defer.Deferred(cancelCommit)
def waitForThread(_ignored):
if self.cancelled:
return t
d.addCallback(waitForThread)
def chainError(err):
if not err.check(defer.CancelledError):
_log.error("CF_COMMIT FAILURE: %s", err)
if self.cancelled:
if not err.check(defer.CancelledError):
raise defer.CancelledError()
return err
else:
d.callback(None)
def chainResult(_ignored):
if self.cancelled:
raise defer.CancelledError()
else:
d.callback(None)
t.addCallbacks(chainResult, chainError)
return d
def _commitWithThread(self, TR):
if not self.running:
raise defer.CancelledError(
'CF Processor is not running (TR: %s:%s)', TR.src.host,
TR.src.port)
_log.info("CF_COMMIT: %s", TR)
"""
a dictionary with a list of records with their associated property info
pvInfo
{rid: { "pvName":"recordName",
"infoProperties":{propName:value, ...}}}
"""
host = TR.src.host
port = TR.src.port
iocName = TR.infos.get('IOCNAME') or TR.src.port
hostName = TR.infos.get('HOSTNAME') or TR.src.host
owner = TR.infos.get('ENGINEER') or TR.infos.get(
'CF_USERNAME') or self.conf.get('username', 'cfstore')
time = self.currentTime()
"""The unique identifier for a particular IOC"""
iocid = host + ":" + str(port)
pvInfo = {}
for rid, (rname, rtype) in TR.addrec.items():
pvInfo[rid] = {"pvName": rname}
for rid, (recinfos) in TR.recinfos.items():
# find intersection of these sets
if rid not in pvInfo:
_log.warn('IOC: %s: PV not found for recinfo with RID: %s',
iocid, rid)
continue
recinfo_wl = [p for p in self.whitelist if p in recinfos.keys()]
if recinfo_wl:
pvInfo[rid]['infoProperties'] = list()
for infotag in recinfo_wl:
property = {
u'name': infotag,
u'owner': owner,
u'value': recinfos[infotag]
}
pvInfo[rid]['infoProperties'].append(property)
for rid, alias in TR.aliases.items():
if rid not in pvInfo:
_log.warn('IOC: %s: PV not found for alias with RID: %s',
iocid, rid)
continue
pvInfo[rid]['aliases'] = alias
delrec = list(TR.delrec)
_log.debug("Delete records: %s", delrec)
pvInfoByName = {}
for rid, (info) in pvInfo.items():
if info["pvName"] in pvInfoByName:
_log.warn(
"Commit contains multiple records with PV name: %s (%s)",
pv, iocid)
continue
pvInfoByName[info["pvName"]] = info
_log.debug("Add record: %s: %s", rid, info)
if TR.initial:
"""Add IOC to source list """
self.iocs[iocid] = {
"iocname": iocName,
"hostname": hostName,
"owner": owner,
"time": time,
"channelcount": 0
}
if not TR.connected:
delrec.extend(self.channel_dict.keys())
for pv in pvInfoByName.keys():
self.channel_dict[pv].append(
iocid) # add iocname to pvName in dict
self.iocs[iocid]["channelcount"] += 1
"""In case, alias exists"""
if (self.conf.get('alias', 'default' == 'on')):
if pv in pvInfoByName and "aliases" in pvInfoByName[pv]:
for a in pvInfoByName[pv]["aliases"]:
self.channel_dict[a].append(
iocid) # add iocname to pvName in dict
self.iocs[iocid]["channelcount"] += 1
for pv in delrec:
if iocid in self.channel_dict[pv]:
self.channel_dict[pv].remove(iocid)
if iocid in self.iocs:
self.iocs[iocid]["channelcount"] -= 1
if self.iocs[iocid]['channelcount'] == 0:
self.iocs.pop(iocid, None)
elif self.iocs[iocid]['channelcount'] < 0:
_log.error("Channel count negative: %s", iocid)
if len(self.channel_dict[pv]
) <= 0: # case: channel has no more iocs
del self.channel_dict[pv]
"""In case, alias exists"""
if (self.conf.get('alias', 'default' == 'on')):
if pv in pvInfoByName and "aliases" in pvInfoByName[pv]:
for a in pvInfoByName[pv]["aliases"]:
self.channel_dict[a].remove(iocid)
if iocid in self.iocs:
self.iocs[iocid]["channelcount"] -= 1
if self.iocs[iocid]['channelcount'] == 0:
self.iocs.pop(iocid, None)
elif self.iocs[iocid]['channelcount'] < 0:
_log.error("Channel count negative: %s", iocid)
if len(self.channel_dict[a]
) <= 0: # case: channel has no more iocs
del self.channel_dict[a]
poll(__updateCF__, self, pvInfoByName, delrec, hostName, iocName,
iocid, owner, time)
dict_to_file(self.channel_dict, self.iocs, self.conf)
def clean_service(self):
"""
Marks all channels as "Inactive" until the recsync server is back up
"""
sleep = 1
retry_limit = 5
owner = self.conf.get('username', 'cfstore')
while 1:
try:
_log.info("CF Clean Started")
channels = self.client.findByArgs(
prepareFindArgs(self.conf, [('pvStatus', 'Active')]))
if channels is not None:
new_channels = []
for ch in channels or []:
new_channels.append(ch[u'name'])
_log.info("Total channels to update: %s",
len(new_channels))
while len(new_channels) > 0:
_log.debug(
'Update "pvStatus" property to "Inactive" for %s channels',
min(len(new_channels), 10000))
self.client.update(property={
u'name': 'pvStatus',
u'owner': owner,
u'value': "Inactive"
},
channelNames=new_channels[:10000])
new_channels = new_channels[10000:]
_log.info("CF Clean Completed")
return
except RequestException as e:
_log.error("Clean service failed: %s", e)
_log.info("Clean service retry in %s seconds", min(60, sleep))
time.sleep(min(60, sleep))
sleep *= 1.5
if self.running == 0 and sleep >= retry_limit:
_log.info("Abandoning clean after %s seconds", retry_limit)
return
def updateChannelFinder(pvNames, hostName, iocName, time, owner, \
service=None, username=None, password=None):
'''
pvNames = list of pvNames
([] permitted will effectively remove the hostname, iocname from all channels)
hostName = pv hostName (None not permitted)
iocName = pv iocName (None not permitted)
owner = the owner of the channels and properties being added, this can be different from the user
e.g. user = abc might create a channel with owner = group-abc
time = the time at which these channels are being created/modified
[optional] if not specified the default values are used by the
channelfinderapi lib
service = channelfinder service URL
username = channelfinder username
password = channelfinder password
'''
if hostName == None or iocName == None:
raise Exception, 'missing hostName or iocName'
channels = []
try:
client = ChannelFinderClient(BaseURL=service, username=username, password=password)
except:
raise Exception, 'Unable to create a valid webResourceClient'
checkPropertiesExist(client, owner)
previousChannelsList = client.findByArgs([('hostName', hostName), ('iocName', iocName)])
if previousChannelsList != None:
for ch in previousChannelsList:
if pvNames != None and ch[u'name'] in pvNames:
''''''
channels.append(updateChannel(ch,\
owner=owner, \
hostName=hostName, \
iocName=iocName, \
pvStatus='Active', \
time=time))
pvNames.remove(ch[u'name'])
elif pvNames == None or ch[u'name'] not in pvNames:
'''Orphan the channel : mark as inactive, keep the old hostName and iocName'''
channels.append(updateChannel(ch, \
owner=owner, \
hostName=ch.getProperties()['hostName'], \
iocName=ch.getProperties()['iocName'], \
pvStatus='InActive', \
time=ch.getProperties()['time']))
# now pvNames contains a list of pv's new on this host/ioc
for pv in pvNames:
ch = client.findByArgs([('~name',pv)])
if ch == None:
'''New channel'''
channels.append(createChannel(pv, \
chOwner=owner, \
hostName=hostName, \
iocName=iocName, \
pvStatus='Active', \
time=time))
elif ch[0] != None:
'''update existing channel: exists but with a different hostName and/or iocName'''
channels.append(updateChannel(ch[0], \
owner=owner, \
hostName=hostName, \
iocName=iocName, \
pvStatus='Active', \
time=time))
client.set(channels=channels)
class CFProcessor(service.Service):
implements(interfaces.IProcessor)
def __init__(self, name, conf):
_log.info("CF_INIT %s", name)
self.name, self.conf = name, conf
self.channel_dict = defaultdict(list)
self.iocs = dict()
self.client = None
self.currentTime = getCurrentTime
self.lock = DeferredLock()
def startService(self):
service.Service.startService(self)
self.running = 1
_log.info("CF_START")
from channelfinder import ChannelFinderClient
# Using the default python cf-client.
# The usr, username, and password are provided by the channelfinder._conf module.
if self.client is None: # For setting up mock test client
self.client = ChannelFinderClient()
self.clean_service()
def stopService(self):
service.Service.stopService(self)
#Set channels to inactive and close connection to client
self.running = 0
self.clean_service()
_log.info("CF_STOP")
@defer.inlineCallbacks
def commit(self, transaction_record):
yield self.lock.acquire()
try:
yield deferToThread(self.__commit__, transaction_record)
finally:
self.lock.release()
def __commit__(self, TR):
_log.debug("CF_COMMIT %s", TR.infos.items())
pvNames = [unicode(rname, "utf-8") for rid, (rname, rtype) in TR.addrec.iteritems()]
delrec = list(TR.delrec)
iocName = TR.src.port
hostName = TR.src.host
iocid = hostName + ":" + str(iocName)
owner = TR.infos.get('CF_USERNAME') or TR.infos.get('ENGINEER') or self.conf.get('username', 'cfstore')
time = self.currentTime()
if TR.initial:
self.iocs[iocid] = {"iocname": iocName, "hostname": hostName, "owner": owner, "channelcount": 0} # add IOC to source list
if not TR.connected:
delrec.extend(self.channel_dict.keys())
for pv in pvNames:
self.channel_dict[pv].append(iocid) # add iocname to pvName in dict
self.iocs[iocid]["channelcount"] += 1
for pv in delrec:
if iocid in self.channel_dict[pv]:
self.channel_dict[pv].remove(iocid)
self.iocs[iocid]["channelcount"] -= 1
if self.iocs[iocid]['channelcount'] == 0:
self.iocs.pop(iocid, None)
elif self.iocs[iocid]['channelcount'] < 0:
_log.error("channel count negative!")
if len(self.channel_dict[pv]) <= 0: # case: channel has no more iocs
del self.channel_dict[pv]
poll(__updateCF__, self.client, pvNames, delrec, self.channel_dict, self.iocs, hostName, iocName, time, owner)
dict_to_file(self.channel_dict, self.iocs, self.conf)
def clean_service(self):
sleep = 1
retry_limit = 5
owner = self.conf.get('username', 'cfstore')
while 1:
try:
_log.debug("Cleaning service...")
channels = self.client.findByArgs([('pvStatus', 'Active')])
if channels is not None:
new_channels = []
for ch in channels or []:
new_channels.append(ch[u'name'])
if len(new_channels) > 0:
self.client.update(property={u'name': 'pvStatus', u'owner': owner, u'value': "Inactive"},
channelNames=new_channels)
_log.debug("Service clean.")
return
except RequestException:
_log.exception("cleaning failed, retrying: ")
time.sleep(min(60, sleep))
sleep *= 1.5
if self.running == 0 and sleep >= retry_limit:
_log.debug("Abandoning clean.")
return
class CFProcessor(service.Service):
def __init__(self, name, conf):
_log.info("CF_INIT %s", name)
self.name, self.conf = name, conf
self.channel_dict = defaultdict(list)
self.iocs = dict()
self.client = None
self.currentTime = getCurrentTime
self.lock = DeferredLock()
def startService(self):
service.Service.startService(self)
self.running = 1
_log.info("CF_START")
if self.client is None: # For setting up mock test client
"""
Using the default python cf-client. The url, username, and
password are provided by the channelfinder._conf module.
"""
from channelfinder import ChannelFinderClient
self.client = ChannelFinderClient()
try:
cf_props = [prop['name'] for prop in self.client.getAllProperties()]
if (self.conf.get('alias', 'default') == 'on'):
reqd_props = {'hostName', 'iocName', 'pvStatus', 'time', 'iocid', 'alias'}
else:
reqd_props = {'hostName', 'iocName', 'pvStatus', 'time', 'iocid'}
wl = self.conf.get('infotags', list())
whitelist = [s.strip(', ') for s in wl.split()] \
if wl else wl
# Are any required properties not already present on CF?
properties = reqd_props - set(cf_props)
# Are any whitelisted properties not already present on CF?
# If so, add them too.
properties.update(set(whitelist) - set(cf_props))
owner = self.conf.get('username', 'cfstore')
for prop in properties:
self.client.set(property={u'name': prop, u'owner': owner})
self.whitelist = set(whitelist)
_log.debug('WHITELIST = {}'.format(self.whitelist))
except ConnectionError:
_log.exception("Cannot connect to Channelfinder service")
raise
else:
self.clean_service()
def stopService(self):
service.Service.stopService(self)
# Set channels to inactive and close connection to client
self.running = 0
self.clean_service()
_log.info("CF_STOP")
@defer.inlineCallbacks
def commit(self, transaction_record):
yield self.lock.acquire()
try:
yield deferToThread(self.__commit__, transaction_record)
finally:
self.lock.release()
def __commit__(self, TR):
_log.debug("CF_COMMIT %s", TR.infos.items())
"""
a dictionary with a list of records with their associated property info
pvInfo
{rid: { "pvName":"recordName",
"infoProperties":{propName:value, ...}}}
"""
iocName = TR.infos.get('IOCNAME') or TR.src.port
hostName = TR.infos.get('HOSTNAME') or TR.src.host
owner = TR.infos.get('ENGINEER') or TR.infos.get('CF_USERNAME') or self.conf.get('username', 'cfstore')
time = self.currentTime()
pvInfo = {}
for rid, (rname, rtype) in TR.addrec.items():
pvInfo[rid] = {"pvName": rname}
for rid, (recinfos) in TR.recinfos.items():
# find intersection of these sets
recinfo_wl = [p for p in self.whitelist if p in recinfos.keys()]
if recinfo_wl:
pvInfo[rid]['infoProperties'] = list()
for infotag in recinfo_wl:
_log.debug('INFOTAG = {}'.format(infotag))
property = {u'name': infotag, u'owner': owner,
u'value': recinfos[infotag]}
pvInfo[rid]['infoProperties'].append(property)
for rid, alias in TR.aliases.items():
pvInfo[rid]['aliases'] = alias
_log.debug(pvInfo)
pvNames = [info["pvName"] for rid, (info) in pvInfo.items()]
delrec = list(TR.delrec)
_log.info("DELETED records " + str(delrec))
host = TR.src.host
port = TR.src.port
"""The unique identifier for a particular IOC"""
iocid = host + ":" + str(port)
_log.info("CF_COMMIT: " + iocid)
if TR.initial:
"""Add IOC to source list """
self.iocs[iocid] = {"iocname": iocName, "hostname": hostName, "owner": owner, "time": time,
"channelcount": 0}
if not TR.connected:
delrec.extend(self.channel_dict.keys())
for pv in pvNames:
self.channel_dict[pv].append(iocid) # add iocname to pvName in dict
self.iocs[iocid]["channelcount"] += 1
"""In case, alias exists"""
if (self.conf.get('alias', 'default' == 'on')):
al = [info["aliases"] for rid, (info) in pvInfo.items() if info["pvName"] == pv and "aliases" in info ]
if len(al) == 1:
ali = al[0]
for a in ali:
self.channel_dict[a].append(iocid) # add iocname to pvName in dict
self.iocs[iocid]["channelcount"] += 1
for pv in delrec:
if iocid in self.channel_dict[pv]:
self.channel_dict[pv].remove(iocid)
if iocid in self.iocs:
self.iocs[iocid]["channelcount"] -= 1
if self.iocs[iocid]['channelcount'] == 0:
self.iocs.pop(iocid, None)
elif self.iocs[iocid]['channelcount'] < 0:
_log.error("channel count negative!")
if len(self.channel_dict[pv]) <= 0: # case: channel has no more iocs
del self.channel_dict[pv]
"""In case, alias exists"""
if (self.conf.get('alias', 'default' == 'on')):
al = [info["aliases"] for rid, (info) in pvInfo.items() if info["pvName"] == pv and "aliases" in info ]
if len(al) == 1:
ali = al[0]
for a in ali:
self.channel_dict[a].remove(iocid)
if iocid in self.iocs:
self.iocs[iocid]["channelcount"] -= 1
if self.iocs[iocid]['channelcount'] == 0:
self.iocs.pop(iocid, None)
elif self.iocs[iocid]['channelcount'] < 0:
_log.error("channel count negative!")
if len(self.channel_dict[a]) <= 0: # case: channel has no more iocs
del self.channel_dict[a]
poll(__updateCF__, self.client, pvInfo, delrec, self.channel_dict, self.iocs, self.conf, hostName, iocName, iocid,
owner, time)
dict_to_file(self.channel_dict, self.iocs, self.conf)
def clean_service(self):
"""
Marks all channels as "Inactive" until the recsync server is back up
"""
sleep = 1
retry_limit = 5
owner = self.conf.get('username', 'cfstore')
while 1:
try:
_log.debug("Cleaning service...")
channels = self.client.findByArgs([('pvStatus', 'Active')])
if channels is not None:
new_channels = []
for ch in channels or []:
new_channels.append(ch[u'name'])
if len(new_channels) > 0:
self.client.update(property={u'name': 'pvStatus', u'owner': owner, u'value': "Inactive"},
channelNames=new_channels)
_log.debug("Service clean.")
return
except RequestException:
_log.exception("cleaning failed, retrying: ")
time.sleep(min(60, sleep))
sleep *= 1.5
if self.running == 0 and sleep >= retry_limit:
_log.debug("Abandoning clean.")
return