Merge branch 'apearce-implicit-mc-scheduling' into 'master'

Avoid explicit MC unpacker scheduling

See merge request !20

HltEfficiencyChecker/python/HltEfficiencyChecker/config.py

@@ -24,6 +24,25 @@ from Hlt2Conf.data_from_file import mc_unpackers, make_mc_track_info
 from RecoConf.hlt1_allen import make_allen_dec_reports
 
 
+def _mc_decay_tree_tuple_input_transform(MCParticles, MCVertices, MCTrackInfo):
+    return dict(ExtraInputs=[MCParticles, MCVertices, MCTrackInfo])
+
+
+def _mc_decay_tree_tuple(**kwargs):
+    """Return an MCDecayTreeTuple configured with MC inputs."""
+    all_objects = mc_unpackers()
+    particles = all_objects["MCParticles"]
+    vertices = all_objects["MCVertices"]
+    return MCDecayTreeTuple(
+        MCParticles=particles,
+        MCVertices=vertices,
+        MCTrackInfo=make_mc_track_info(),
+        # The input transform allows PyConf to figure out the inputs to this
+        # algorithm that it will need to declare to the scheduler
+        input_transform=_mc_decay_tree_tuple_input_transform,
+        **kwargs)
+
+
 def run_allen_in_moore_with_tuples(options,
                                    descriptor_template=None,
                                    public_tools=[]):
@@ -100,19 +119,13 @@ def add_efficiency_tuples_allen(allen_node, descriptor_template=None):
     tool_list = [ttei.getFullName(), ttt.getFullName()]
     if efficiency_mode:
         decay, branches, _ = parse_descriptor_template(descriptor_template)
-        mcdtt = MCDecayTreeTuple(
+        mcdtt = _mc_decay_tree_tuple(
             Decay=decay,
             Branches=branches,
             ToolList=tool_list +
             [mcttkin.getFullName(),
              mcttrec.getFullName()])
-        nodes = [
-            # Puts the MCParticle info into the data flow
-            mc_unpackers()["MCParticles"],
-            mc_unpackers()["MCVertices"],
-            make_mc_track_info(),
-            mcdtt
-        ]
+        nodes = [mcdtt]
     else:
         et = EventTuple(ToolList=tool_list)
         nodes = [et]
@@ -209,19 +222,13 @@ def add_efficiency_tuples(moore_cf, descriptor_template=None):
     tool_list = [ttei.getFullName(), ttt.getFullName()]
     if efficiency_mode:
         decay, branches, _ = parse_descriptor_template(descriptor_template)
-        mcdtt = MCDecayTreeTuple(
+        mcdtt = _mc_decay_tree_tuple(
             Decay=decay,
             Branches=branches,
             ToolList=tool_list +
             [mcttkin.getFullName(),
              mcttrec.getFullName()])
-        nodes = [
-            # Puts the MCParticle info into the data flow
-            mc_unpackers()["MCParticles"],
-            mc_unpackers()["MCVertices"],
-            make_mc_track_info(),
-            mcdtt
-        ]
+        nodes = [mcdtt]
     else:
         et = EventTuple(ToolList=tool_list)
         nodes = [et]