Source code for coherence.upnp.devices.media_server_client

# Licensed under the MIT license
# http://opensource.org/licenses/mit-license.php

# Copyright 2006, Frank Scholz <coherence@beebits.net>

'''
:class:`MediaServerClient`
--------------------------

A class representing an media server client device.
'''

from eventdispatcher import (
    EventDispatcher, Property, StringProperty)

from coherence import log
from coherence.upnp.services.clients.av_transport_client import \
    AVTransportClient
from coherence.upnp.services.clients.connection_manager_client import \
    ConnectionManagerClient
from coherence.upnp.services.clients.content_directory_client import \
    ContentDirectoryClient


[docs]class MediaServerClient(EventDispatcher, log.LogAble): ''' .. versionchanged:: 0.9.0 * Introduced inheritance from EventDispatcher * The emitted events changed: - Coherence.UPnP.DeviceClient.detection_completed => device_client_detection_completed * Changed `device_type`, `detection_completed` and `content_directory` to use EventDispatcher's properties ''' logCategory = 'ms_client' device_type = StringProperty('') detection_completed = Property(False) content_directory = Property(None) def __init__(self, device): log.LogAble.__init__(self) EventDispatcher.__init__(self) self.register_event( # 'Coherence.UPnP.DeviceClient.detection_completed', 'device_client_detection_completed', ) self.device = device # 'Coherence.UPnP.DeviceClient.Service.notified' # self.device.bind(service_notified=self.service_notified) self.device_type = self.device.get_friendly_device_type() self.version = int(self.device.get_device_type_version()) self.icons = device.icons self.scheduled_recording = None self.connection_manager = None self.av_transport = None for service in self.device.get_services(): # 'Coherence.UPnP.DeviceClient.Service.notified' service.bind(service_notified=self.service_notified) # service.dispatch_event( # 'service_notified', sender=self.device, service=service) if service.get_type() in [ "urn:schemas-upnp-org:service:ContentDirectory:1", "urn:schemas-upnp-org:service:ContentDirectory:2"]: self.content_directory = ContentDirectoryClient(service) if service.get_type() in [ "urn:schemas-upnp-org:service:ConnectionManager:1", "urn:schemas-upnp-org:service:ConnectionManager:2"]: self.connection_manager = ConnectionManagerClient(service) if service.get_type() in [ "urn:schemas-upnp-org:service:AVTransport:1", "urn:schemas-upnp-org:service:AVTransport:2"]: self.av_transport = AVTransportClient(service) self.info("MediaServer %s", self.device.get_friendly_name()) if self.content_directory: self.info("ContentDirectory available") else: self.warning( "ContentDirectory not available, device not implemented" " properly according to the UPnP specification") return if self.connection_manager: self.info("ConnectionManager available") else: self.warning( "ConnectionManager not available, device not implemented" " properly according to the UPnP specification") return if self.av_transport: self.info("AVTransport (optional) available") if self.scheduled_recording: self.info("ScheduledRecording (optional) available")
[docs] def remove(self): self.info("removal of MediaServerClient started") if self.content_directory is not None: self.content_directory.remove() if self.connection_manager is not None: self.connection_manager.remove() if self.av_transport is not None: self.av_transport.remove() if self.scheduled_recording is not None: self.scheduled_recording.remove()
[docs] def service_notified(self, sender, service): self.info('notified about %r', service) if self.detection_completed: return if self.content_directory is not None: if not hasattr(self.content_directory.service, 'last_time_updated'): return if self.content_directory.service.last_time_updated is None: return if self.connection_manager is not None: if not hasattr(self.connection_manager.service, 'last_time_updated'): return if self.connection_manager.service.last_time_updated is None: return if self.av_transport is not None: if not hasattr(self.av_transport.service, 'last_time_updated'): return if self.av_transport.service.last_time_updated is None: return if self.scheduled_recording is not None: if not hasattr(self.scheduled_recording.service, 'last_time_updated'): return if self.scheduled_recording.service.last_time_updated is None: return self.detection_completed = True # 'Coherence.UPnP.DeviceClient.detection_completed' self.dispatch_event( 'device_client_detection_completed', client=self, udn=self.device.udn) self.info('detection_completed for %r', self)
[docs] def state_variable_change(self, variable, usn): self.info('%(name)r changed from %(old_value)r to %(value)r', vars(variable))
[docs] def print_results(self, results): self.info("results= %s", results)
[docs] def process_meta(self, results): for k, v in results.items(): dfr = self.content_directory.browse(k, "BrowseMetadata") dfr.addCallback(self.print_results)