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Diffstat (limited to 'mediagoblin/processing/task.py')
-rw-r--r-- | mediagoblin/processing/task.py | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/mediagoblin/processing/task.py b/mediagoblin/processing/task.py new file mode 100644 index 00000000..901d293b --- /dev/null +++ b/mediagoblin/processing/task.py @@ -0,0 +1,78 @@ +# 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 + +from celery.task import Task + +from mediagoblin import mg_globals as mgg +from mediagoblin.db.util import ObjectId +from mediagoblin.media_types import get_media_manager +from mediagoblin.processing import mark_entry_failed, BaseProcessingFail + +_log = logging.getLogger(__name__) + + +################################ +# Media processing initial steps +################################ + +class ProcessMedia(Task): + """ + DEPRECATED -- This now resides in the individual media plugins + + Pass this entry off for processing. + """ + def run(self, media_id): + """ + Pass the media entry off to the appropriate processing function + (for now just process_image...) + """ + entry = mgg.database.MediaEntry.one( + {'_id': ObjectId(media_id)}) + + # Try to process, and handle expected errors. + try: + #__import__(entry.media_type) + manager = get_media_manager(entry.media_type) + _log.debug('Processing {0}'.format(entry)) + manager['processor'](entry) + except BaseProcessingFail, exc: + mark_entry_failed(entry._id, exc) + return + except ImportError, exc: + _log.error( + 'Entry {0} failed to process due to an import error: {1}'\ + .format( + entry.title, + exc)) + + mark_entry_failed(entry._id, exc) + + entry.state = u'processed' + entry.save() + + def on_failure(self, exc, task_id, args, kwargs, einfo): + """ + If the processing failed we should mark that in the database. + + Assuming that the exception raised is a subclass of + BaseProcessingFail, we can use that to get more information + about the failure and store that for conveying information to + users about the failure, etc. + """ + entry_id = args[0] + mark_entry_failed(entry_id, exc) |