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1# This file is part of ctrl_bps. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (https://www.lsst.org). 

6# See the COPYRIGHT file at the top-level directory of this distribution 

7# for details of code ownership. 

8# 

9# This program is free software: you can redistribute it and/or modify 

10# it under the terms of the GNU General Public License as published by 

11# the Free Software Foundation, either version 3 of the License, or 

12# (at your option) any later version. 

13# 

14# This program is distributed in the hope that it will be useful, 

15# but WITHOUT ANY WARRANTY; without even the implied warranty of 

16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

17# GNU General Public License for more details. 

18# 

19# You should have received a copy of the GNU General Public License 

20# along with this program. If not, see <https://www.gnu.org/licenses/>. 

21 

22"""Driver for preparing a WMS-specific workflow. 

23""" 

24 

25import logging 

26import time 

27 

28from lsst.utils import doImport 

29from .bps_utils import (save_qg_subgraph, WhenToSaveQuantumGraphs, create_job_quantum_graph_filename, 

30 _create_execution_butler) 

31 

32 

33_LOG = logging.getLogger(__name__) 

34 

35 

36def prepare(config, generic_workflow, out_prefix): 

37 """Convert generic workflow to a workflow for a particular WMS. 

38 

39 Parameters 

40 ---------- 

41 config : `lsst.ctrl.bps.BpsConfig` 

42 Contains configuration for BPS. 

43 generic_workflow : `lsst.ctrl.bps.GenericWorkflow` 

44 Contains generic workflow. 

45 out_prefix : `str` 

46 Contains directory to which any WMS-specific files should be written. 

47 

48 Returns 

49 ------- 

50 wms_workflow : `lsst.ctrl.bps.BaseWmsWorkflow` 

51 WMS-specific workflow. 

52 """ 

53 search_opt = {"searchobj": config["executionButler"]} 

54 _, when_create = config.search("whenCreate", opt=search_opt) 

55 if when_create.upper() == "PREPARE": 

56 _, execution_butler_dir = config.search(".bps_defined.executionButlerDir", opt=search_opt) 

57 _LOG.info("Creating execution butler (%s)", execution_butler_dir) 

58 stime = time.time() 

59 _create_execution_butler(config, config["runQgraphFile"], execution_butler_dir, out_prefix) 

60 _LOG.info("Creating execution butler took %.2f seconds", time.time() - stime) 

61 

62 found, wms_class = config.search("wmsServiceClass") 

63 if not found: 

64 raise KeyError("Missing wmsServiceClass in bps config. Aborting.") 

65 

66 wms_service_class = doImport(wms_class) 

67 wms_service = wms_service_class(config) 

68 wms_workflow = wms_service.prepare(config, generic_workflow, out_prefix) 

69 

70 # Save QuantumGraphs (putting after call to prepare so don't write a 

71 # bunch of files if prepare fails) 

72 found, when_save = config.search("whenSaveJobQgraph") 

73 if found and WhenToSaveQuantumGraphs[when_save.upper()] == WhenToSaveQuantumGraphs.PREPARE: 

74 for job_name in generic_workflow.nodes(): 

75 job = generic_workflow.get_job(job_name) 

76 save_qg_subgraph(job.quantum_graph, create_job_quantum_graph_filename(job, out_prefix)) 

77 

78 return wms_workflow