1 files changed, 0 insertions, 122 deletions
diff --git a/mailman/chains/base.py b/mailman/chains/base.py
deleted file mode 100644
index bcd946b40..000000000
--- a/mailman/chains/base.py
+++ /dev/null
@@ -1,122 +0,0 @@
-# Copyright (C) 2008-2009 by the Free Software Foundation, Inc.
-#
-# This file is part of GNU Mailman.
-#
-# GNU Mailman is free software: you can redistribute it and/or modify it under
-# the terms of the GNU General Public License as published by the Free
-# Software Foundation, either version 3 of the License, or (at your option)
-# any later version.
-#
-# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
-
-"""Base class for terminal chains."""
-
-from __future__ import absolute_import, unicode_literals
-
-__metaclass__ = type
-__all__ = [
-    'Chain',
-    'Link',
-    'TerminalChainBase',
-    ]
-
-
-from zope.interface import implements
-
-from mailman.config import config
-from mailman.interfaces.chain import (
-    IChain, IChainIterator, IChainLink, IMutableChain, LinkAction)
-
-
-
-class Link:
-    """A chain link."""
-    implements(IChainLink)
-
-    def __init__(self, rule, action=None, chain=None, function=None):
-        self.rule = rule
-        self.action = (LinkAction.defer if action is None else action)
-        self.chain = chain
-        self.function = function
-
-
-
-class TerminalChainBase:
-    """A base chain that always matches and executes a method.
-
-    The method is called 'process' and must be provided by the subclass.
-    """
-    implements(IChain, IChainIterator)
-
-    def _process(self, mlist, msg, msgdata):
-        """Process the message for the given mailing list.
-
-        This must be overridden by subclasses.
-        """
-        raise NotImplementedError
-
-    def get_links(self, mlist, msg, msgdata):
-        """See `IChain`."""
-        return iter(self)
-
-    def __iter__(self):
-        """See `IChainIterator`."""
-        truth = config.rules['truth']
-        # First, yield a link that always runs the process method.
-        yield Link(truth, LinkAction.run, function=self._process)
-        # Now yield a rule that stops all processing.
-        yield Link(truth, LinkAction.stop)
-
-
-
-class Chain:
-    """Generic chain base class."""
-    implements(IMutableChain)
-
-    def __init__(self, name, description):
-        assert name not in config.chains, (
-            'Duplicate chain name: {0}'.format(name))
-        self.name = name
-        self.description = description
-        self._links = []
-        # Register the chain.
-        config.chains[name] = self
-
-    def append_link(self, link):
-        """See `IMutableChain`."""
-        self._links.append(link)
-
-    def flush(self):
-        """See `IMutableChain`."""
-        self._links = []
-
-    def get_links(self, mlist, msg, msgdata):
-        """See `IChain`."""
-        return iter(ChainIterator(self))
-
-    def get_iterator(self):
-        """Return an iterator over the links."""
-        # We do it this way in order to preserve a separation of interfaces,
-        # and allows .get_links() to be overridden.
-        for link in self._links:
-            yield link
-
-
-
-class ChainIterator:
-    """Generic chain iterator."""
-
-    implements(IChainIterator)
-
-    def __init__(self, chain):
-        self._chain = chain
-
-    def __iter__(self):
-        """See `IChainIterator`."""
-        return self._chain.get_iterator()