remove keystone-moon

Change-Id: I80d7c9b669f19d5f6607e162de8e0e55c2f80fdd
Signed-off-by: RHE <rebirthmonkey@gmail.com>

1 files changed, 0 insertions, 244 deletions

diff --git a/keystone-moon/keystone/common/cache/_memcache_pool.py b/keystone-moon/keystone/common/cache/_memcache_pool.py
deleted file mode 100644
index 2bfcc3bb..00000000
--- a/keystone-moon/keystone/common/cache/_memcache_pool.py
+++ /dev/null
@@ -1,244 +0,0 @@
-# Copyright 2014 Mirantis Inc
-# All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-"""Thread-safe connection pool for python-memcached."""
-
-# NOTE(yorik-sar): this file is copied between keystone and keystonemiddleware
-# and should be kept in sync until we can use external library for this.
-
-import collections
-import contextlib
-import itertools
-import logging
-import threading
-import time
-
-import memcache
-from oslo_log import log
-from six.moves import queue, zip
-
-from keystone import exception
-from keystone.i18n import _
-
-
-LOG = log.getLogger(__name__)
-
-
-class _MemcacheClient(memcache.Client):
-    """Thread global memcache client
-
-    As client is inherited from threading.local we have to restore object
-    methods overloaded by threading.local so we can reuse clients in
-    different threads
-    """
-    __delattr__ = object.__delattr__
-    __getattribute__ = object.__getattribute__
-    __new__ = object.__new__
-    __setattr__ = object.__setattr__
-
-    def __del__(self):
-        pass
-
-
-_PoolItem = collections.namedtuple('_PoolItem', ['ttl', 'connection'])
-
-
-class ConnectionPool(queue.Queue):
-    """Base connection pool class
-
-    This class implements the basic connection pool logic as an abstract base
-    class.
-    """
-    def __init__(self, maxsize, unused_timeout, conn_get_timeout=None):
-        """Initialize the connection pool.
-
-        :param maxsize: maximum number of client connections for the pool
-        :type maxsize: int
-        :param unused_timeout: idle time to live for unused clients (in
-                               seconds). If a client connection object has been
-                               in the pool and idle for longer than the
-                               unused_timeout, it will be reaped. This is to
-                               ensure resources are released as utilization
-                               goes down.
-        :type unused_timeout: int
-        :param conn_get_timeout: maximum time in seconds to wait for a
-                                 connection. If set to `None` timeout is
-                                 indefinite.
-        :type conn_get_timeout: int
-        """
-        # super() cannot be used here because Queue in stdlib is an
-        # old-style class
-        queue.Queue.__init__(self, maxsize)
-        self._unused_timeout = unused_timeout
-        self._connection_get_timeout = conn_get_timeout
-        self._acquired = 0
-
-    def _create_connection(self):
-        """Returns a connection instance.
-
-        This is called when the pool needs another instance created.
-
-        :returns: a new connection instance
-
-        """
-        raise NotImplementedError
-
-    def _destroy_connection(self, conn):
-        """Destroy and cleanup a connection instance.
-
-        This is called when the pool wishes to get rid of an existing
-        connection. This is the opportunity for a subclass to free up
-        resources and cleaup after itself.
-
-        :param conn: the connection object to destroy
-
-        """
-        raise NotImplementedError
-
-    def _debug_logger(self, msg, *args, **kwargs):
-        if LOG.isEnabledFor(logging.DEBUG):
-            thread_id = threading.current_thread().ident
-            args = (id(self), thread_id) + args
-            prefix = 'Memcached pool %s, thread %s: '
-            LOG.debug(prefix + msg, *args, **kwargs)
-
-    @contextlib.contextmanager
-    def acquire(self):
-        self._debug_logger('Acquiring connection')
-        try:
-            conn = self.get(timeout=self._connection_get_timeout)
-        except queue.Empty:
-            raise exception.UnexpectedError(
-                _('Unable to get a connection from pool id %(id)s after '
-                  '%(seconds)s seconds.') %
-                {'id': id(self), 'seconds': self._connection_get_timeout})
-        self._debug_logger('Acquired connection %s', id(conn))
-        try:
-            yield conn
-        finally:
-            self._debug_logger('Releasing connection %s', id(conn))
-            self._drop_expired_connections()
-            try:
-                # super() cannot be used here because Queue in stdlib is an
-                # old-style class
-                queue.Queue.put(self, conn, block=False)
-            except queue.Full:
-                self._debug_logger('Reaping exceeding connection %s', id(conn))
-                self._destroy_connection(conn)
-
-    def _qsize(self):
-        if self.maxsize:
-            return self.maxsize - self._acquired
-        else:
-            # A value indicating there is always a free connection
-            # if maxsize is None or 0
-            return 1
-
-    # NOTE(dstanek): stdlib and eventlet Queue implementations
-    # have different names for the qsize method. This ensures
-    # that we override both of them.
-    if not hasattr(queue.Queue, '_qsize'):
-        qsize = _qsize
-
-    def _get(self):
-        if self.queue:
-            conn = self.queue.pop().connection
-        else:
-            conn = self._create_connection()
-        self._acquired += 1
-        return conn
-
-    def _drop_expired_connections(self):
-        """Drop all expired connections from the right end of the queue."""
-        now = time.time()
-        while self.queue and self.queue[0].ttl < now:
-            conn = self.queue.popleft().connection
-            self._debug_logger('Reaping connection %s', id(conn))
-            self._destroy_connection(conn)
-
-    def _put(self, conn):
-        self.queue.append(_PoolItem(
-            ttl=time.time() + self._unused_timeout,
-            connection=conn,
-        ))
-        self._acquired -= 1
-
-
-class MemcacheClientPool(ConnectionPool):
-    def __init__(self, urls, arguments, **kwargs):
-        # super() cannot be used here because Queue in stdlib is an
-        # old-style class
-        ConnectionPool.__init__(self, **kwargs)
-        self.urls = urls
-        self._arguments = arguments
-        # NOTE(morganfainberg): The host objects expect an int for the
-        # deaduntil value. Initialize this at 0 for each host with 0 indicating
-        # the host is not dead.
-        self._hosts_deaduntil = [0] * len(urls)
-
-    def _create_connection(self):
-        return _MemcacheClient(self.urls, **self._arguments)
-
-    def _destroy_connection(self, conn):
-        conn.disconnect_all()
-
-    def _get(self):
-        # super() cannot be used here because Queue in stdlib is an
-        # old-style class
-        conn = ConnectionPool._get(self)
-        try:
-            # Propagate host state known to us to this client's list
-            now = time.time()
-            for deaduntil, host in zip(self._hosts_deaduntil, conn.servers):
-                if deaduntil > now and host.deaduntil <= now:
-                    host.mark_dead('propagating death mark from the pool')
-                host.deaduntil = deaduntil
-        except Exception:
-            # We need to be sure that connection doesn't leak from the pool.
-            # This code runs before we enter context manager's try-finally
-            # block, so we need to explicitly release it here.
-            # super() cannot be used here because Queue in stdlib is an
-            # old-style class
-            ConnectionPool._put(self, conn)
-            raise
-        return conn
-
-    def _put(self, conn):
-        try:
-            # If this client found that one of the hosts is dead, mark it as
-            # such in our internal list
-            now = time.time()
-            for i, host in zip(itertools.count(), conn.servers):
-                deaduntil = self._hosts_deaduntil[i]
-                # Do nothing if we already know this host is dead
-                if deaduntil <= now:
-                    if host.deaduntil > now:
-                        self._hosts_deaduntil[i] = host.deaduntil
-                        self._debug_logger(
-                            'Marked host %s dead until %s',
-                            self.urls[i], host.deaduntil)
-                    else:
-                        self._hosts_deaduntil[i] = 0
-            # If all hosts are dead we should forget that they're dead. This
-            # way we won't get completely shut off until dead_retry seconds
-            # pass, but will be checking servers as frequent as we can (over
-            # way smaller socket_timeout)
-            if all(deaduntil > now for deaduntil in self._hosts_deaduntil):
-                self._debug_logger('All hosts are dead. Marking them as live.')
-                self._hosts_deaduntil[:] = [0] * len(self._hosts_deaduntil)
-        finally:
-            # super() cannot be used here because Queue in stdlib is an
-            # old-style class
-            ConnectionPool._put(self, conn)