Added FinalPath

OutputModules on FinalPaths do not cause unscheduled execution.

FWCore/Framework/src/ProductResolvers.cc

@@ -436,15 +436,7 @@ namespace edm {
                                                                               SharedResourcesAcquirer*,
                                                                               ModuleCallingContext const*) const {
     if (!skipCurrentProcess and worker_) {
-      return resolveProductImpl<true>([this]() {
-        edm::Exception ex(errors::UnimplementedFeature);
-        ex << "Attempting to run unscheduled module without doing prefetching";
-        std::ostringstream ost;
-        ost << "Calling produce method for unscheduled module " << worker_->description()->moduleName() << "/'"
-            << worker_->description()->moduleLabel() << "'";
-        ex.addContext(ost.str());
-        throw ex;
-      });
+      return resolveProductImpl<false>([] {});
     }
     return Resolution(nullptr);
   }

FWCore/Integration/test/BuildFile.xml

@@ -529,5 +529,6 @@
     <flags PRE_TEST="TestIntegrationProcessBlock23"/>
     <flags PRE_TEST="TestIntegrationProcessBlock24"/>
   </test>
+  <test name="TestIntegrationFinalPath" command="test_finalpath.sh"/>
 
 </environment>

FWCore/Integration/test/test_finalpath.sh

@@ -0,0 +1,79 @@
+#!/bin/bash
+
+LOCAL_TEST_DIR=${CMSSW_BASE}/src/FWCore/Integration/test
+LOCAL_TMP_DIR=${CMSSW_BASE}/tmp/${SCRAM_ARCH}
+
+# Pass in name and status
+function die { echo $1: status $2 ; echo === Log file === ; cat ${3:-/dev/null} ; echo === End log file === ; exit $2; }
+
+pushd ${LOCAL_TMP_DIR}
+
+cat <<EOF > finalpath_expected_empty.log
+EOF
+
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py >& finalpath.log || die "failed test_finalpath_cfg.py" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_empty.log - || die "differences for test_finalpath_cfg.py" $?
+
+
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --schedule >& finalpath.log || die "failed test_finalpath_cfg.py --schedule" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_empty.log - || die "differences for test_finalpath_cfg.py" $?
+
+
+cat <<EOF > finalpath_expected_not_found.log
+did not find thing '' TEST
+did not find thing '' TEST
+did not find thing '' TEST
+found thing 'beginLumi' TEST
+found thing 'endLumi' TEST
+found thing 'beginRun' TEST
+found thing 'endRun' TEST
+EOF
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --schedule --task >& finalpath.log || die "failed test_finalpath_cfg.py --schedule --task" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_not_found.log - || die "differences for test_finalpath_cfg.py --schedule --task" $?
+
+
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --endpath >& finalpath.log || die "failed test_finalpath_cfg.py --endpath" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_empty.log - || die "differences for test_finalpath_cfg.py --endpath" $?
+
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --schedule --endpath >& finalpath.log || die "failed test_finalpath_cfg.py --schedule --endpath" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_empty.log - || die "differences for test_finalpath_cfg.py --schedule --endpath" $?
+
+
+cat <<EOF > finalpath_expected_found.log
+found thing '' TEST
+found thing '' TEST
+found thing '' TEST
+found thing 'beginLumi' TEST
+found thing 'endLumi' TEST
+found thing 'beginRun' TEST
+found thing 'endRun' TEST
+EOF
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --endpath --task >& finalpath.log || die "failed test_finalpath_cfg.py --endpath --task" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_found.log - || die "differences for test_finalpath_cfg.py --endpath --task" $?
+
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --endpath --task --schedule >& finalpath.log || die "failed test_finalpath_cfg.py --endpath --task --schedule" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_found.log - || die "differences for test_finalpath_cfg.py --endpath --task --schedule" $?
+
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --path --task >& finalpath.log || die "failed test_finalpath_cfg.py --path --task" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_found.log - || die "differences for test_finalpath_cfg.py --path --task" $?
+
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --path --task --schedule >& finalpath.log || die "failed test_finalpath_cfg.py --path --task --schedule" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_found.log - || die "differences for test_finalpath_cfg.py --path --task --schedule" $?
+
+
+cat <<EOF > finalpath_expected_filter.log
+did not find thing '' TEST
+found thing '' TEST
+did not find thing '' TEST
+found thing 'beginLumi' TEST
+found thing 'endLumi' TEST
+found thing 'beginRun' TEST
+found thing 'endRun' TEST
+EOF
+
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --path --filter >& finalpath.log || die "failed test_finalpath_cfg.py --path --filter" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_filter.log - || die "differences for test_finalpath_cfg.py --path --filter" $?
+
+
+cmsRun  ${LOCAL_TEST_DIR}/test_finalpath_cfg.py -- --path --filter --task >& finalpath.log || die "failed test_finalpath_cfg.py --path --filter --task" $?
+grep "thing '.*' TEST" finalpath.log | diff finalpath_expected_filter.log - || die "differences for test_finalpath_cfg.py --path --filter --task" $?

FWCore/Integration/test/test_finalpath_cfg.py

@@ -0,0 +1,69 @@
+import FWCore.ParameterSet.Config as cms
+import argparse
+import sys
+
+parser = argparse.ArgumentParser(prog=sys.argv[0], description='Test FinalPath.')
+
+parser.add_argument("--schedule", help="use cms.Schedule", action="store_true")
+parser.add_argument("--task", help="put EDProducer into a task", action="store_true")
+parser.add_argument("--path", help="put a consumer of the product onto a Path", action="store_true")
+parser.add_argument("--endpath", help="put a consumer of the product onto an EndPath", action="store_true")
+parser.add_argument("--filter", action="store_true")
+parser.add_argument("--tracer", help="add Tracer service", action="store_true")
+
+print(sys.argv)
+argv = sys.argv[:]
+if '--' in argv:
+    argv.remove("--")
+args, unknown = parser.parse_known_args(argv)
+
+
+process = cms.Process("TEST")
+
+process.MessageLogger.cerr.INFO.limit = 10000
+
+process.source = cms.Source("EmptySource")
+
+process.maxEvents.input = 3
+
+process.thing = cms.EDProducer("ThingProducer")
+
+scheduledPaths =[]
+if args.path:
+    print("adding Path")
+    process.otherThing = cms.EDProducer("OtherThingProducer", thingTag = cms.InputTag("thing"))
+    p = cms.Path()
+    if args.filter:
+        process.fltr = cms.EDFilter("Prescaler", prescaleFactor = cms.int32(2), prescaleOffset=cms.int32(0))
+        p += process.fltr
+    if not args.task:
+        p += process.thing
+    p += process.otherThing
+    process.p = p
+    scheduledPaths.append(process.p)
+    if args.task:
+        process.p.associate(cms.Task(process.thing))
+
+if args.endpath:
+    print("adding EndPath")
+    process.out2 = cms.OutputModule("AsciiOutputModule",outputCommands = cms.untracked.vstring("drop *", "keep *_thing_*_*"))
+    process.o = cms.EndPath(process.out2)
+    scheduledPaths.append(process.o)
+    if args.task:
+        process.o.associate(cms.Task(process.thing))
+
+process.out = cms.OutputModule("GetProductCheckerOutputModule", verbose= cms.untracked.bool(True), outputCommands = cms.untracked.vstring("drop *", "keep *_thing_*_*"))
+process.f = cms.FinalPath(process.out)
+
+if args.schedule:
+    print("adding Schedule")
+    scheduledPaths.append(process.f)
+    process.schedule = cms.Schedule(*scheduledPaths)
+    if args.task:
+        process.schedule.associate(cms.Task(process.thing))
+
+if args.tracer:
+    process.add_(cms.Service("Tracer"))
+
+process.options.numberOfThreads=3
+process.options.numberOfStreams=1