changed the way that SocketNER retrieves data from the socket server;…

… may address issue dat#14 and issue dat#11.

ner/client.py

@@ -9,6 +9,7 @@
 
 import json
 import re
+import time
 import socket
 
 from itertools import groupby
@@ -123,7 +124,27 @@ def tag_text(self, text):
             if not isinstance(text, bytes):
                 text = text.encode('utf-8')
             s.sendall(text)
-            tagged_text = s.recv(10*len(text))
+
+            timeout = 2         # Consider making this configurable?         
+            lastResponse = time.time()
+            tagged_text = ''    # Response content will be appended as it is received.
+            while True:
+                # If some data has already been received, bail after `timeout` seconds.
+                if len(tagged_text) > 0 and time.time() - lastResponse > timeout:
+                    break
+
+                # Wait a bit longer if no data has been received, just in case.
+                elif time.time() - lastResponse > timeout * 2:
+                    break
+
+                data = s.recv(4092) # Retrieve a small chunk of the response.
+                if data:
+                    tagged_text += data
+                    lastResponse = time.time()
+                else:               # Wait a bit before looking again.
+                    time.sleep(0.1)
+
+
         return tagged_text.decode('utf-8')