Created on 20.08.2010
@author: luk
'''
from zkpy.utils import enum
import base64
import hashlib
import logging
# Possible ACL permission constants
AclPermission = enum(
Read = 1, # zookeeper.PERM_READ
Write = 2, # zookeeper.PERM_WRITE
Create = 4, # zookeeper.PERM_CREATE
Delete = 8, # zookeeper.PERM_DELETE
Admin = 16, # zookeeper.PERM_ADMIN
All = 31 # zookeeper.PERM_ALL
)
# Possible? Id schemes
IdSchema = enum(
Digest = 'digest',#
Ip = 'ip',#
Auth = 'auth',#
World = 'world')#
class Id(object):
'''Represents a Zookeeper id.
Modeled after org.apache.zookeeper.data.Id
self.connection = None
def __enter__(self):
self.connection = Connection(self.servers, self.timeout)
return self.connection
def __exit__(self, type, value, traceback):
if self.connection:
self.connection.close()
self.connection = None
# Event types
EventType = enum(
NotWatchingAnymore = -2, # zookeeper.NOTWATCHING_EVENT
NoneType = -1, # zookeeper.SESSION_EVENT
NodeCreated = 1, # zookeeper.CREATED_EVENT
NodeDeleted = 2, # zookeeper.DELETED_EVENT
NodeDataChanged = 3, # zookeeper.CHANGED_EVENT
NodeChildrenChanged = 4) # zookeeper.CHILD_EVENT
# Connection states/events
KeeperState = enum(
Disconnected = 0, # not a watcher event, but is returned for state() if disconnected
Connecting = 1, # zookeeper.CONNECTING_STATE
Associating = 2, # zookeeper.ASSOCIATING_STATE
Connected = 3, # zookeeper.CONNECTED_STATE
AuthFailed = -113, # zookeeper.Auth_FAILED_STATE
Expired = -112) # zookeeper.EXPIRED_SESSION_STATE
# Node creation modes
NodeCreationMode = enum(
from zkpy import zk_retry_operation
from zkpy.connection import EventType, NodeCreationMode, KeeperState
from zkpy.utils import enum
import logging
import zookeeper
GroupEvents = enum(
ObserverError = -1,
MemberJoined = 1,
MemberLeft = 2,
MemberChanged = 3
)
logging.warn('zkpy.group IS NOT MEANT TO BE USED RIGHT NOW!')
class Group(object):
'''
WIP. NOT useable at the moment.
Multiple entries per host
Host registers with hostname and port
path: Path for the service group, needs to exists
'''
logger = logging.getLogger('zkpy.group.Group')
def __init__(self, connection, path, observer = None):
self.zk_conn = connection
self.path = path
