one tasks queue instead of one per websocket

oml/tasks.py

@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+# vi:si:et:sw=4:sts=4:ts=4
+from __future__ import division
+
+from Queue import Queue
+from threading import Thread
+
+from websocket import trigger_event
+
+
+import logging
+logger = logging.getLogger('oml.websocket')
+
+class Tasks(Thread):
+
+    def __init__(self, app):
+        self.q = Queue()
+        self.connected = True
+        self._app = app
+        Thread.__init__(self)
+        self.daemon = True
+        self.start()
+
+    def run(self):
+        import item.scan
+        while self.connected:
+            m = self.q.get()
+            if m:
+                print m
+                action, data = m
+                if action == 'ping':
+                    trigger_event('pong', data)
+                elif action == 'import':
+                    item.scan.run_import(data)
+                elif action == 'scan':
+                    item.scan.run_scan()
+                elif action == 'update':
+                    trigger_event('error', {'error': 'not implemented'})
+                else:
+                    trigger_event('error', {'error': 'unknown action'})
+            self.q.task_done()
+
+    def join(self):
+        self.connected = False
+        self.put(None)
+        self.q.join()
+        return Thread.join(self)
+
+    def queue(self, action, data):
+        self.q.put((action, data))
+