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#
# Copyright (c) 2015 ThoughtWorks, Inc.
#
# Pixelated is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pixelated 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Pixelated. If not, see <http://www.gnu.org/licenses/>.
from twisted.internet import defer
from types import FunctionType
from pixelated.adapter.mailstore import MailStore
class SearchableMailStore(object): # implementes MailStore
def __init__(self, delegate, search_engine):
self._delegate = delegate
self._search_engine = search_engine
@classmethod
def _create_delegator(cls, method_name):
def delegator(self, *args, **kw):
return getattr(self._delegate, method_name)(*args, **kw)
setattr(cls, method_name, delegator)
@defer.inlineCallbacks
def add_mail(self, mailbox_name, mail):
stored_mail = yield self._delegate.add_mail(mailbox_name, mail)
self._search_engine.index_mail(stored_mail)
defer.returnValue(stored_mail)
@defer.inlineCallbacks
def delete_mail(self, mail_id):
removed = yield self._delegate.delete_mail(mail_id)
self._search_engine.remove_from_index(mail_id)
defer.returnValue(removed)
@defer.inlineCallbacks
def update_mail(self, mail):
yield self._delegate.update_mail(mail)
self._search_engine.index_mail(mail)
@defer.inlineCallbacks
def move_mail_to_mailbox(self, mail_id, mailbox_name):
moved_mail = yield self._delegate.move_mail_to_mailbox(mail_id, mailbox_name)
self._search_engine.remove_from_index(mail_id)
self._search_engine.index_mail(moved_mail)
defer.returnValue(moved_mail)
@defer.inlineCallbacks
def copy_mail_to_mailbox(self, mail_id, mailbox_name):
copied_mail = yield self._delegate.copy_mail_to_mailbox(mail_id, mailbox_name)
self._search_engine.index_mail(copied_mail)
defer.returnValue(copied_mail)
def delete_mailbox(self, mailbox_name):
raise NotImplementedError()
def __getattr__(self, name):
"""
Acts like method missing. If a method of MailStore is not implemented in this class,
a delegate method is created.
:param name: attribute name
:return: method or attribute
"""
methods = ([key for key, value in MailStore.__dict__.items() if type(value) == FunctionType])
if name in methods:
SearchableMailStore._create_delegator(name)
return super(SearchableMailStore, self).__getattribute__(name)
else:
raise NotImplementedError('No attribute %s' % name)
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