BGPSpeaker: Remove unused utility modules

Reviewed-by: IWAMOTO Toshihiro <iwamoto@valinux.co.jp>
Signed-off-by: IWASE Yusuke <iwase.yusuke0@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 0 insertions, 106 deletions

diff --git a/ryu/services/protocols/bgp/utils/internable.py b/ryu/services/protocols/bgp/utils/internable.py
deleted file mode 100644
index 2029bf0d..00000000
--- a/ryu/services/protocols/bgp/utils/internable.py
+++ /dev/null
@@ -1,106 +0,0 @@
-# Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
-#
-# 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.
-
-import weakref
-
-
-#
-# Internable
-#
-class Internable(object):
-    """Class that allows instances to be 'interned'. That is, given an
-    instance of this class, one can obtain a canonical (interned)
-    copy.
-
-    This saves memory when there are likely to be many identical
-    instances of the class -- users hold references to a single
-    interned object instead of references to different objects that
-    are identical.
-
-    The interned version of a given instance is created on demand if
-    necessary, and automatically cleaned up when nobody holds a
-    reference to it.
-
-    Instances of sub-classes must be usable as dictionary keys for
-    Internable to work.
-    """
-
-    _internable_stats = None
-    _internable_dict = None
-
-    def __init__(self):
-        self._interned = False
-
-    class Stats(object):
-
-        def __init__(self):
-            self.d = {}
-
-        def incr(self, name):
-            self.d[name] = self.d.get(name, 0) + 1
-
-        def __repr__(self):
-            return repr(self.d)
-
-        def __str__(self):
-            return str(self.d)
-
-    @classmethod
-    def _internable_init(cls):
-        # Objects to be interned are held as keys in a dictionary that
-        # only holds weak references to keys. As a result, when the
-        # last reference to an interned object goes away, the object
-        # will be removed from the dictionary.
-        cls._internable_dict = weakref.WeakKeyDictionary()
-        cls._internable_stats = Internable.Stats()
-
-    @classmethod
-    def intern_stats(cls):
-        return cls._internable_stats
-
-    def intern(self):
-        """Returns either itself or a canonical copy of itself."""
-
-        # If this is an interned object, return it
-        if hasattr(self, '_interned'):
-            return self._internable_stats.incr('self')
-
-        #
-        # Got to find or create an interned object identical to this
-        # one. Auto-initialize the class if need be.
-        #
-        cls = self.__class__
-
-        if not cls._internable_dict:
-            cls._internable_init()
-
-        obj = cls._internable_dict.get(self)
-        if (obj):
-            # Found an interned copy.
-            cls._internable_stats.incr('found')
-            return obj
-
-        # Create an interned copy. Take care to only keep a weak
-        # reference to the object itself.
-        def object_collected(obj):
-            cls._internable_stats.incr('collected')
-            # print("Object %s garbage collected" % obj)
-            pass
-
-        ref = weakref.ref(self, object_collected)
-        cls._internable_dict[self] = ref
-        self._interned = True
-        cls._internable_stats.incr('inserted')
-        return self