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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import logging
_log = logging.getLogger(__name__)
class MediaNotProcessedError(Exception):
"""Error indicating that a media entry is not marked as processed."""
pass
class BaseEngine(object):
def add_media_entry(self, media):
raise NotImplementedError
def remove_media_entry(self, media_entry_id):
raise NotImplementedError
def update_index(self):
"""Update the index to make it consistent with the database."""
raise NotImplementedError
def get_doc_for_media_entry(self, media):
"""Creates a document suitable for indexing.
If the media entry is not processed then a MediaNotProcessedError
will be raised.
Args:
media: A MediaEntry for indexing.
"""
_log.info("Indexing: %d" % media.id)
if media.state != 'processed':
_log.info('Ignoring: not yet processed')
raise MediaNotProcessedError()
tags = ' '.join([tag['name'] for tag in media.tags])
comments = '\n'.join([comment.content
for comment in media.get_comments()])
# collections = u','.join([col.title for col in media.collections])
doc = {'title': media.title,
'description': media.description,
'media_id': media.id,
'time': media.updated,
'tag': tags,
'comment': comments}
if media.get_actor:
doc['user'] = media.get_actor.username
return doc
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