implementing worker.py and miscellaneous changes

test/shell.py

@@ -1,4 +1,5 @@
-import orchpy.unison as unison
+import argparse
+
 import orchpy.services as services
 import orchpy.worker as worker
 
@@ -6,13 +7,33 @@ from grpc.beta import implementations
 import orchestra_pb2
 import types_pb2
 
+parser = argparse.ArgumentParser(description='Parse addresses for the worker to connect to.')
+parser.add_argument("--ip_address", default="127.0.0.1", help="the IP address to use for both the scheduler and objstore")
+parser.add_argument("--scheduler_port", default=10001, type=int, help="the scheduler's port")
+parser.add_argument("--objstore_port", default=20001, type=int, help="the objstore's port")
+parser.add_argument("--worker_port", default=40001, type=int, help="the worker's port")
+
+@worker.distributed([str], [str])
+def print_string(string):
+  print "called print_string with", string
+  f = open("asdfasdf.txt", "w")
+  f.write("successfully called print_string with argument {}.".format(string))
+  return string
+
+@worker.distributed([int, int], [int, int])
+def handle_int(a, b):
+  return a + 1, b + 1
+
 def connect_to_scheduler(host, port):
   channel = implementations.insecure_channel(host, port)
   return orchestra_pb2.beta_create_Scheduler_stub(channel)
 
+def address(host, port):
+  return host + ":" + str(port)
+
 if __name__ == '__main__':
-  scheduler_stub = connect_to_scheduler("127.0.0.1", 22221)
-  worker = worker.Worker()
-  worker.connect("127.0.0.1:22221", "127.0.0.1:10000", "127.0.0.1:22222")
+  args = parser.parse_args()
+  scheduler_stub = connect_to_scheduler(args.ip_address, args.scheduler_port)
+  worker.connect(address(args.ip_address, args.scheduler_port), address(args.ip_address, args.objstore_port), address(args.ip_address, args.worker_port))
   import IPython
   IPython.embed()