add files and simulated modes

illumination.py

@@ -1,4 +1,10 @@
 #!/usr/bin/env python
+# *-----------------------------------------------------------------------*
+# |                                                                       |
+# |  Copyright (c) 2022 by Paul Scherrer Institute (http://www.psi.ch)    |
+# |              Based on Zac great first implementation                  |
+# |              Author Thierry Zamofing (thierry.zamofing@psi.ch)        |
+# *-----------------------------------------------------------------------*
 
 import logging
 _log=logging.getLogger(__name__)
@@ -39,7 +45,11 @@ all   = 0xff
 
 class IlluminationControl(object):
 
-  def __init__(self,hostname: str,port: int):
+  def __init__(self,hostname: str="129.129.221.92",port: int=1003):
+    if hostname is None: #simulated mode
+      self._sim={'stat':0}
+      _log.info('simulated mode:{}'.format(self._sim))
+      return
     self._hostname = hostname
     self._port = port
     self.connect()
@@ -59,14 +69,15 @@ class IlluminationControl(object):
 
   def is_on(self, led_flags: int) -> bool:
     """check status for light state, see CONSTANTS STATUS_BITS_*"""
-    try:
-      s = self.status()[0]
-    except:
-      print("error reading status")
-      return False
+    s = self.status()
     return bool(s & led_flags)
 
   def send_command(self, cmd: bytes):
+    try:
+      s=self._socket
+    except AttributeError: #simulated mode
+      _log.info('simulated mode:{}'.format(cmd))
+      return
     try:
       self._socket.sendall(cmd)
     except (BrokenPipeError, OSError) as e:
@@ -75,9 +86,14 @@ class IlluminationControl(object):
       try:
         self._socket.sendall(cmd)
       except Exception as e:
-        raise IlluminationControlException("unrecoverable socket error: {}".format(e.args))
+        _log.error("unrecoverable socket error: {}".format(e.args))
 
   def status(self):
+    try:
+      s=self._socket
+    except AttributeError: #simulated mode
+      _log.info('simulated mode')
+      return self._sim['stat']
     self.send_command(bytes((stat,all)))
     resp = self._socket.recv(1024)
     return resp[0]&0x1f