Add help messages and command listing to dispatcher handlers.

[software/pymin.git] / pymindaemon.py

diff --git a/pymindaemon.py b/pymindaemon.py
index 98ced487f572d76201b10703d1d5065ae89c1083..f3f45fbd38d90581ffc01af351045c1c97a4e7e2 100644 (file)
--- a/pymindaemon.py
+++ b/pymindaemon.py
@@ -33,7 +33,7 @@ class PyminDaemon(eventloop.EventLoop):
     >>> PyminDaemon(('', 9999), dict(test=test_handler)).run()
     """
 
-    def __init__(self, bind_addr, routes):
+    def __init__(self, routes=dict(), bind_addr=('', 9999)):
         r"""Initialize the PyminDaemon object.
 
         See PyminDaemon class documentation for more info.
@@ -65,8 +65,13 @@ class PyminDaemon(eventloop.EventLoop):
             if result is not None:
                 result = serializer.serialize(result)
             response = u'OK '
+        except dispatcher.Error, e:
+            result = unicode(e) + u'\n'
+            response = u'ERROR '
         except Exception, e:
-            result = unicode(e)
+            import traceback
+            result = u'Internal server error\n'
+            traceback.print_exc() # TODO logging!
             response = u'ERROR '
         if result is None:
             response += u'0'
@@ -83,16 +88,14 @@ class PyminDaemon(eventloop.EventLoop):
 
 if __name__ == '__main__':
 
-    from dispatcher import handler
-
-    @handler
+    @handler(u"Print all the arguments, return nothing.")
     def test_handler(*args):
         print 'test:', args
 
-    @handler
+    @handler(u"Echo the message passed as argument.")
     def echo_handler(message):
         print 'echo:', message
         return message
 
-    PyminDaemon(('', 9999), dict(test=test_handler, echo=echo_handler)).run()
+    PyminDaemon(dict(test=test_handler, echo=echo_handler)).run()