From 06f843337164b653c7db5eddf0098c6d4ec2ff45 Mon Sep 17 00:00:00 2001 From: "J. Alexander Treuman" Date: Fri, 11 Sep 2009 19:15:23 -0400 Subject: [PATCH] mpd.py: internal API cleanup Function names should be more readable now, and the new naming scheme will fit in better with the upcoming asynchronous API. --- mpd.py | 272 ++++++++++++++++++++++++++++----------------------------- 1 file changed, 136 insertions(+), 136 deletions(-) diff --git a/mpd.py b/mpd.py index 3050acd..1704b7b 100644 --- a/mpd.py +++ b/mpd.py @@ -52,82 +52,82 @@ class MPDClient(object): self._reset() self._commands = { # Status Commands - "clearerror": self._getnone, - "currentsong": self._getobject, - "idle": self._getlist, + "clearerror": self._fetch_nothing, + "currentsong": self._fetch_object, + "idle": self._fetch_list, "noidle": None, - "status": self._getobject, - "stats": self._getobject, + "status": self._fetch_object, + "stats": self._fetch_object, # Playback Option Commands - "consume": self._getnone, - "crossfade": self._getnone, - "random": self._getnone, - "repeat": self._getnone, - "setvol": self._getnone, - "single": self._getnone, - "volume": self._getnone, + "consume": self._fetch_nothing, + "crossfade": self._fetch_nothing, + "random": self._fetch_nothing, + "repeat": self._fetch_nothing, + "setvol": self._fetch_nothing, + "single": self._fetch_nothing, + "volume": self._fetch_nothing, # Playback Control Commands - "next": self._getnone, - "pause": self._getnone, - "play": self._getnone, - "playid": self._getnone, - "previous": self._getnone, - "seek": self._getnone, - "seekid": self._getnone, - "stop": self._getnone, + "next": self._fetch_nothing, + "pause": self._fetch_nothing, + "play": self._fetch_nothing, + "playid": self._fetch_nothing, + "previous": self._fetch_nothing, + "seek": self._fetch_nothing, + "seekid": self._fetch_nothing, + "stop": self._fetch_nothing, # Playlist Commands - "add": self._getnone, - "addid": self._getitem, - "clear": self._getnone, - "delete": self._getnone, - "deleteid": self._getnone, - "move": self._getnone, - "moveid": self._getnone, - "playlist": self._getplaylist, - "playlistfind": self._getsongs, - "playlistid": self._getsongs, - "playlistinfo": self._getsongs, - "playlistsearch": self._getsongs, - "plchanges": self._getsongs, - "plchangesposid": self._getchanges, - "shuffle": self._getnone, - "swap": self._getnone, - "swapid": self._getnone, + "add": self._fetch_nothing, + "addid": self._fetch_item, + "clear": self._fetch_nothing, + "delete": self._fetch_nothing, + "deleteid": self._fetch_nothing, + "move": self._fetch_nothing, + "moveid": self._fetch_nothing, + "playlist": self._fetch_playlist, + "playlistfind": self._fetch_songs, + "playlistid": self._fetch_songs, + "playlistinfo": self._fetch_songs, + "playlistsearch": self._fetch_songs, + "plchanges": self._fetch_songs, + "plchangesposid": self._fetch_changes, + "shuffle": self._fetch_nothing, + "swap": self._fetch_nothing, + "swapid": self._fetch_nothing, # Stored Playlist Commands - "listplaylist": self._getlist, - "listplaylistinfo": self._getsongs, - "listplaylists": self._getplaylists, - "load": self._getnone, - "playlistadd": self._getnone, - "playlistclear": self._getnone, - "playlistdelete": self._getnone, - "playlistmove": self._getnone, - "rename": self._getnone, - "rm": self._getnone, - "save": self._getnone, + "listplaylist": self._fetch_list, + "listplaylistinfo": self._fetch_songs, + "listplaylists": self._fetch_playlists, + "load": self._fetch_nothing, + "playlistadd": self._fetch_nothing, + "playlistclear": self._fetch_nothing, + "playlistdelete": self._fetch_nothing, + "playlistmove": self._fetch_nothing, + "rename": self._fetch_nothing, + "rm": self._fetch_nothing, + "save": self._fetch_nothing, # Database Commands - "count": self._getobject, - "find": self._getsongs, - "list": self._getlist, - "listall": self._getdatabase, - "listallinfo": self._getdatabase, - "lsinfo": self._getdatabase, - "search": self._getsongs, - "update": self._getitem, + "count": self._fetch_object, + "find": self._fetch_songs, + "list": self._fetch_list, + "listall": self._fetch_database, + "listallinfo": self._fetch_database, + "lsinfo": self._fetch_database, + "search": self._fetch_songs, + "update": self._fetch_item, # Connection Commands "close": None, "kill": None, - "password": self._getnone, - "ping": self._getnone, + "password": self._fetch_nothing, + "ping": self._fetch_nothing, # Audio Output Commands - "disableoutput": self._getnone, - "enableoutput": self._getnone, - "outputs": self._getoutputs, + "disableoutput": self._fetch_nothing, + "enableoutput": self._fetch_nothing, + "outputs": self._fetch_outputs, # Reflection Commands - "commands": self._getlist, - "notcommands": self._getlist, - "tagtypes": self._getlist, - "urlhandlers": self._getlist, + "commands": self._fetch_list, + "notcommands": self._fetch_list, + "tagtypes": self._fetch_list, + "urlhandlers": self._fetch_list, } def __getattr__(self, attr): @@ -136,29 +136,29 @@ class MPDClient(object): except KeyError: raise AttributeError("'%s' object has no attribute '%s'" % (self.__class__.__name__, attr)) - return lambda *args: self._docommand(attr, args, retval) + return lambda *args: self._execute(attr, args, retval) - def _docommand(self, command, args, retval): - if self._commandlist is not None and not callable(retval): + def _execute(self, command, args, retval): + if self._command_list is not None and not callable(retval): raise CommandListError("%s not allowed in command list" % command) - self._writecommand(command, args) - if self._commandlist is None: + self._write_command(command, args) + if self._command_list is None: if callable(retval): return retval() return retval - self._commandlist.append(retval) + self._command_list.append(retval) - def _writeline(self, line): + def _write_line(self, line): self._wfile.write("%s\n" % line) self._wfile.flush() - def _writecommand(self, command, args=[]): + def _write_command(self, command, args=[]): parts = [command] for arg in args: parts.append('"%s"' % escape(str(arg))) - self._writeline(" ".join(parts)) + self._write_line(" ".join(parts)) - def _readline(self): + def _read_line(self): line = self._rfile.readline() if not line.endswith("\n"): raise ConnectionError("Connection lost while reading line") @@ -166,7 +166,7 @@ class MPDClient(object): if line.startswith(ERROR_PREFIX): error = line[len(ERROR_PREFIX):].strip() raise CommandError(error) - if self._commandlist is not None: + if self._command_list is not None: if line == NEXT: return if line == SUCCESS: @@ -175,25 +175,25 @@ class MPDClient(object): return return line - def _readitem(self, separator): - line = self._readline() + def _read_pair(self, separator): + line = self._read_line() if line is None: return - item = line.split(separator, 1) - if len(item) < 2: - raise ProtocolError("Could not parse item: '%s'" % line) - return item - - def _readitems(self, separator=": "): - item = self._readitem(separator) - while item: - yield item - item = self._readitem(separator) + pair = line.split(separator, 1) + if len(pair) < 2: + raise ProtocolError("Could not parse pair: '%s'" % line) + return pair + + def _read_pairs(self, separator=": "): + pair = self._read_pair(separator) + while pair: + yield pair + pair = self._read_pair(separator) raise StopIteration - def _readlist(self): + def _read_list(self): seen = None - for key, value in self._readitems(): + for key, value in self._read_pairs(): if key != seen: if seen is not None: raise ProtocolError("Expected key '%s', got '%s'" % @@ -202,14 +202,14 @@ class MPDClient(object): yield value raise StopIteration - def _readplaylist(self): - for key, value in self._readitems(":"): + def _read_playlist(self): + for key, value in self._read_pairs(":"): yield value raise StopIteration - def _readobjects(self, delimiters=[]): + def _read_objects(self, delimiters=[]): obj = {} - for key, value in self._readitems(): + for key, value in self._read_pairs(): key = key.lower() if obj: if key in delimiters: @@ -226,61 +226,61 @@ class MPDClient(object): yield obj raise StopIteration - def _readcommandlist(self): - for retval in self._commandlist: + def _read_command_list(self): + for retval in self._command_list: yield retval() - self._commandlist = None - self._getnone() + self._command_list = None + self._fetch_nothing() raise StopIteration - def _wrapiterator(self, iterator): + def _wrap_iterator(self, iterator): if not self.iterate: return list(iterator) return iterator - def _getnone(self): - line = self._readline() + def _fetch_nothing(self): + line = self._read_line() if line is not None: raise ProtocolError("Got unexpected return value: '%s'" % line) - def _getitem(self): - items = list(self._readitems()) - if len(items) != 1: + def _fetch_item(self): + pairs = list(self._read_pairs()) + if len(pairs) != 1: return - return items[0][1] + return pairs[0][1] - def _getlist(self): - return self._wrapiterator(self._readlist()) + def _fetch_list(self): + return self._wrap_iterator(self._read_list()) - def _getplaylist(self): - return self._wrapiterator(self._readplaylist()) + def _fetch_playlist(self): + return self._wrap_iterator(self._read_playlist()) - def _getobject(self): - objs = list(self._readobjects()) + def _fetch_object(self): + objs = list(self._read_objects()) if not objs: return {} return objs[0] - def _getobjects(self, delimiters): - return self._wrapiterator(self._readobjects(delimiters)) + def _fetch_objects(self, delimiters): + return self._wrap_iterator(self._read_objects(delimiters)) - def _getsongs(self): - return self._getobjects(["file"]) + def _fetch_songs(self): + return self._fetch_objects(["file"]) - def _getplaylists(self): - return self._getobjects(["playlist"]) + def _fetch_playlists(self): + return self._fetch_objects(["playlist"]) - def _getdatabase(self): - return self._getobjects(["file", "directory", "playlist"]) + def _fetch_database(self): + return self._fetch_objects(["file", "directory", "playlist"]) - def _getoutputs(self): - return self._getobjects(["outputid"]) + def _fetch_outputs(self): + return self._fetch_objects(["outputid"]) - def _getchanges(self): - return self._getobjects(["cpos"]) + def _fetch_changes(self): + return self._fetch_objects(["cpos"]) - def _getcommandlist(self): - return self._wrapiterator(self._readcommandlist()) + def _fetch_command_list(self): + return self._wrap_iterator(self._read_command_list()) def _hello(self): line = self._rfile.readline() @@ -293,12 +293,12 @@ class MPDClient(object): def _reset(self): self.mpd_version = None - self._commandlist = None + self._command_list = None self._sock = None self._rfile = _NotConnected() self._wfile = _NotConnected() - def _unix_connect(self, path): + def _connect_unix(self, path): if not hasattr(socket, "AF_UNIX"): raise ConnectionError("Unix domain sockets not supported " "on this platform") @@ -306,7 +306,7 @@ class MPDClient(object): sock.connect(path) return sock - def _tcp_connect(self, host, port): + def _connect_tcp(self, host, port): try: flags = socket.AI_ADDRCONFIG except AttributeError: @@ -333,9 +333,9 @@ class MPDClient(object): if self._sock: raise ConnectionError("Already connected") if host.startswith("/"): - self._sock = self._unix_connect(host) + self._sock = self._connect_unix(host) else: - self._sock = self._tcp_connect(host, port) + self._sock = self._connect_tcp(host, port) self._rfile = self._sock.makefile("rb") self._wfile = self._sock.makefile("wb") try: @@ -351,16 +351,16 @@ class MPDClient(object): self._reset() def command_list_ok_begin(self): - if self._commandlist is not None: + if self._command_list is not None: raise CommandListError("Already in command list") - self._writecommand("command_list_ok_begin") - self._commandlist = [] + self._write_command("command_list_ok_begin") + self._command_list = [] def command_list_end(self): - if self._commandlist is None: + if self._command_list is None: raise CommandListError("Not in command list") - self._writecommand("command_list_end") - return self._getcommandlist() + self._write_command("command_list_end") + return self._fetch_command_list() def escape(text): -- 2.39.2