Revert "Email Send Cron Worker"

This reverts commit 264d6f8288.

Change-Id: I2bd4a7ef0b6d18e600c9270fcd4a2b5291163f84

storyboard/plugin/email/workers.py

@@ -1,78 +0,0 @@
-# Copyright (c) 2015 Hewlett-Packard Development Company, L.P.
-#
-# 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 pytz
-import smtplib
-
-from apscheduler.triggers.interval import IntervalTrigger
-from oslo_log import log
-
-from storyboard.plugin.email.base import EmailPluginBase
-from storyboard.plugin.email.outbox import get_outbox
-from storyboard.plugin.email.smtp_client import get_smtp_client
-from storyboard.plugin.scheduler.base import SchedulerPluginBase
-
-LOG = log.getLogger(__name__)
-
-
-class EmailSender(SchedulerPluginBase, EmailPluginBase):
-    """A Cron Plugin which goes through all email messages that have been
-    written to the outbox in its provided time interval, and sends them using
-    the email sender.
-    """
-
-    def trigger(self):
-        """This plugin executes every minute. APScheduler will collate the
-        executions of this plugin, so there will be no overlap between
-        executions.
-        """
-        return IntervalTrigger(minutes=1, timezone=pytz.utc)
-
-    def run(self):
-        """Send all the messages between the given timestamps. If a message
-        cannot be sent, or if the sender is not retrievable,
-        then discard all messages - we don't want to build up a massive
-        backlog and then spam people.
-        """
-
-        # Try to send email.
-        try:
-            with get_outbox() as outbox:
-                with get_smtp_client() as smtp_client:
-                    for key, message in outbox.iteritems():
-                        from_addr = message.get('From')
-                        to_addrs = message.get('To')
-
-                        try:
-                            smtp_client.sendmail(from_addr=from_addr,
-                                                 to_addrs=to_addrs,
-                                                 msg=message.as_string())
-                        except smtplib.SMTPException as e:
-                            LOG.error(
-                                'Cannot send email, discarding: %s' % (e,))
-                        finally:
-                            outbox.discard(key)
-        except Exception as e:
-            LOG.error("Error while trying to send email.")
-            LOG.error(e)
-
-        # After everything's said and done, clear out anything that hasn't
-        # been handled.
-        try:
-            with get_outbox() as outbox:
-                for key, message in outbox.iteritems():
-                    outbox.discard(key)
-        except Exception as e:
-            LOG.error("Unable to flush remaining emails.", e)