Add a BaseFrontend

mopidy/frontends/base.py

@@ -0,0 +1,30 @@
+class BaseFrontend(object):
+    """
+    Base class for frontends.
+
+    :param core_queue: queue for messaging the core
+    :type core_queue: :class:`multiprocessing.Queue`
+    :param backend: the backend
+    :type backend: :class:`mopidy.backends.base.BaseBackend`
+    """
+
+    def __init__(self, core_queue, backend):
+        self.core_queue = core_queue
+        self.backend = backend
+
+    def start(self):
+        """Start the frontend."""
+        pass
+
+    def destroy(self):
+        """Destroy the frontend."""
+        pass
+
+    def process_message(self, message):
+        """
+        Process messages for the frontend.
+
+        :param message: the message
+        :type message: dict
+        """
+        raise NotImplementedError