mopidy/mopidy/core.py
2010-08-22 21:39:06 +02:00

91 lines
3.5 KiB
Python

import logging
import multiprocessing
import optparse
from mopidy import get_version, settings
from mopidy.utils import get_class
from mopidy.utils.log import setup_logging
from mopidy.utils.path import get_or_create_folder, get_or_create_file
from mopidy.utils.process import BaseProcess, unpickle_connection
from mopidy.utils.settings import list_settings_optparse_callback
logger = logging.getLogger('mopidy.core')
class CoreProcess(BaseProcess):
def __init__(self):
super(CoreProcess, self).__init__(name='CoreProcess')
self.core_queue = multiprocessing.Queue()
self.options = self.parse_options()
self.output_queue = None
self.backend = None
self.frontend = None
def parse_options(self):
parser = optparse.OptionParser(version='Mopidy %s' % get_version())
parser.add_option('-q', '--quiet',
action='store_const', const=0, dest='verbosity_level',
help='less output (warning level)')
parser.add_option('-v', '--verbose',
action='store_const', const=2, dest='verbosity_level',
help='more output (debug level)')
parser.add_option('--dump',
action='store_true', dest='dump',
help='dump debug log to file')
parser.add_option('--list-settings',
action='callback', callback=list_settings_optparse_callback,
help='list current settings')
return parser.parse_args()[0]
def run_inside_try(self):
logger.info(u'-- Starting Mopidy --')
self.setup()
while True:
message = self.core_queue.get()
self.process_message(message)
def setup(self):
self.setup_logging()
self.setup_settings()
self.output_queue = self.setup_output(self.core_queue)
self.backend = self.setup_backend(self.core_queue, self.output_queue)
self.frontend = self.setup_frontend(self.core_queue, self.backend)
def setup_logging(self):
setup_logging(self.options.verbosity_level, self.options.dump)
def setup_settings(self):
get_or_create_folder('~/.mopidy/')
get_or_create_file('~/.mopidy/settings.py')
settings.validate()
def setup_output(self, core_queue):
output_queue = multiprocessing.Queue()
get_class(settings.OUTPUT)(core_queue, output_queue)
return output_queue
def setup_backend(self, core_queue, output_queue):
return get_class(settings.BACKENDS[0])(core_queue, output_queue)
def setup_frontend(self, core_queue, backend):
frontend = get_class(settings.FRONTENDS[0])()
frontend.start_server(core_queue)
frontend.create_dispatcher(backend)
return frontend
def process_message(self, message):
if message.get('to') == 'output':
self.output_queue.put(message)
elif message['command'] == 'mpd_request':
response = self.frontend.dispatcher.handle_request(
message['request'])
connection = unpickle_connection(message['reply_to'])
connection.send(response)
elif message['command'] == 'end_of_track':
self.backend.playback.on_end_of_track()
elif message['command'] == 'stop_playback':
self.backend.playback.stop()
elif message['command'] == 'set_stored_playlists':
self.backend.stored_playlists.playlists = message['playlists']
else:
logger.warning(u'Cannot handle message: %s', message)