Add model.getAllSignals to python api (#1134)

src/OMSimulatorPython/Model.py

@@ -1,3 +1,6 @@
+import typing
+import xml.etree.ElementTree as ET
+
 from OMSimulator import Scope, System, Types
 
 
@@ -61,6 +64,17 @@ def reset(self):
     if Types.Status(status) != Types.Status.OK:
       raise Exception('error {}'.format(Types.Status(status)))
 
+  def getAllSignals(self):
+    allSignals = {}
+    signalFilter = self.exportSnapshot(':resources/signalFilter.xml')
+    root = ET.fromstring(signalFilter)
+    for var in root[0][0]:
+      name = var.attrib['name']
+      type_ = var.attrib['type']
+      kind = var.attrib['kind']
+      allSignals[name] = {'type': type_, 'kind': kind}
+    return allSignals
+
   def getBoolean(self, cref: str):
     value, status = Scope._capi.getBoolean(self.cref + '.' + cref)
     if Types.Status(status) != Types.Status.OK:

src/OMSimulatorServer/OMSimulatorServer.py

@@ -7,7 +7,6 @@
 import sys
 import threading
 import time
-import xml.etree.ElementTree as ET
 
 import OMSimulator as oms
 import zmq
@@ -27,10 +26,13 @@ def close_socket_gracefully(socket):
 
 def mogrify(topic: str, msg: dict):
   '''Combines a topic identifier and a json representation of a dictionary'''
-  return '%s %s' % (topic, json.dumps(msg))
+  return f'{topic} {json.dumps(msg)}'
 
 class Server:
   def __init__(self, model, result_file, interactive, endpoint_pub, endpoint_rep):
+    self.print(f'OMS Server {__version__}')
+    self.print(f'ZMQ {zmq.zmq_version()}')
+
     self._alive = True
     self._context = zmq.Context()
     self._model = oms.importFile(model)
@@ -45,17 +47,7 @@ def __init__(self, model, result_file, interactive, endpoint_pub, endpoint_rep):
       self._model.resultFile = result_file
 
     # extract all available signals
-    self._signals = {}
-    signalFilter = self._model.exportSnapshot(':resources/signalFilter.xml')
-    root = ET.fromstring(signalFilter)
-    for var in root[0][0]:
-      name = var.attrib['name']
-      type_ = var.attrib['type']
-      kind = var.attrib['kind']
-      self._signals[name] = {'type': type_, 'kind': kind}
-
-    self.print('OMS Server {}'.format(__version__))
-    self.print('ZMQ {}'.format(zmq.zmq_version()))
+    self._signals = self._model.getAllSignals()
 
     if interactive and not endpoint_rep:
       self.print('flag --endpoint-rep is mandatory in interactive simulation mode')