Draft: GaudiConfig2: port utils.py from Gaussino

GaudiConfiguration/python/GaudiConfig2/utils.py

+#####################################################################################
+# (c) Copyright 1998-2024 CERN for the benefit of the LHCb and ATLAS collaborations #
+#                                                                                   #
+# This software is distributed under the terms of the Apache version 2 licence,     #
+# copied verbatim in the file "LICENSE".                                            #
+#                                                                                   #
+# In applying this licence, CERN does not waive the privileges and immunities       #
+# granted to it by virtue of its status as an Intergovernmental Organization        #
+# or submit itself to any jurisdiction.                                             #
+#####################################################################################
+__author__ = "Adam Morris"
+__email__ = "lhcb-simulation@cern.ch"
+
+from GaudiConfig2 import Configurables as C
+from GaudiConfig2._configurables import ConfigurableMeta  # for type-hinting
+from GaudiKernel.GaudiHandles import PrivateToolHandle
+
+
+# FIXME: Michal M.: moved from old SimUtils,
+#        it is too convoluted and probably buggy...
+def get_set_configurable(
+    parent: ConfigurableMeta, propertyname: str, value: str = ""
+) -> ConfigurableMeta:
+    if value == "":
+        propertyvalue = getattr(parent, propertyname)
+        try:
+            objectname = propertyvalue.getType()
+            propertyvalue_short = propertyvalue.getName()
+        except:
+            try:
+                propertyvalue_short = propertyvalue.split("/")[-1]
+                objectname = propertyvalue.split("/")[0]
+            except:
+                pass
+    else:
+        setattr(parent, propertyname, value)
+        propertyvalue_short = value.split("/")[-1]
+        objectname = value.split("/")[0]
+
+    propertyvalue_short = propertyvalue_short.split(".")[-1]
+    objectname = objectname.replace("::", "__")
+    if not hasattr(parent, propertyvalue_short):
+        conf = getattr(C, objectname)
+        # child = parent.addTool(conf, propertyvalue_short)
+        child = conf(".".join([parent.name, propertyvalue_short]))
+    else:
+        child = getattr(parent, propertyvalue_short)
+    return child
+
+
+def add_tool(parent: ConfigurableMeta, tool: str) -> ConfigurableMeta:
+    tool_class = tool.split("/")[0].replace("::", "__")
+    tool_name = tool.split("/")[-1].split(".")[-1]
+    conf = getattr(C, tool_class)
+    child = conf(".".join([parent.name, tool_name]))
+
+    return child
+
+
+def configure_tool(tool: ConfigurableMeta, tool_opts: dict):
+    for key, value in tool_opts.items():
+        setattr(tool, key, value)
+
+
+def extract_handles(parent: ConfigurableMeta) -> list[ConfigurableMeta]:
+    handles = []
+    for key, value in parent.getDefaultProperties().items():
+        # TODO: other classes in GaudiKernel.GaudiHandles but not necessarily all of them
+        if isinstance(value, PrivateToolHandle):
+            try:
+                handles += [get_set_configurable(parent, key)]
+            except AttributeError:
+                continue
+    return handles
+
+
+def extract_all_handles(config: list[ConfigurableMeta]) -> list[ConfigurableMeta]:
+    handles = []
+    all_names = [i.name for i in config]
+    for c in config:
+        for h in extract_handles(c):
+            if h.name not in all_names:
+                handles += [h]
+    return handles