---

PythonService Class Reference

Description: interface to write EDMService in Python. More...

#include <FWCore/Python/src/PythonService.h>

List of all members.

Public Member Functions
void	postBeginJob ()
void	postEndJob ()
void	postProcessEvent (const edm::Event &, const edm::EventSetup &)
void	preProcessEvent (const edm::EventID &, const edm::Timestamp &)
	PythonService (const edm::ParameterSet &, edm::ActivityRegistry &)
	~PythonService ()
Private Attributes
std::string	command_
std::string	fileName_
PythonManagerHandle	handle_
boost::python::object	service_

---

Detailed Description

Description: interface to write EDMService in Python.

Usage: <usage>

Definition at line 32 of file PythonService.h.

---

Constructor & Destructor Documentation

PythonService::PythonService	(	const edm::ParameterSet &	iConfig,
		edm::ActivityRegistry &	iRegistry
	)

Definition at line 25 of file PythonService.cc.

References command_, GenMuonPlsPt100GeV_cfg::cout, lat::endl(), Exception, aod_PYTHIA_cfg::fileName, edm::ParameterSet::getParameter(), postBeginJob(), postEndJob(), postProcessEvent(), HLT_VtxMuL3::result, service_, edm::ActivityRegistry::watchPostBeginJob(), edm::ActivityRegistry::watchPostEndJob(), and edm::ActivityRegistry::watchPostProcessEvent().

                                                                                          :
    handle_(PythonManager::handle())
{
    
    std::cout << "Start preparing PythonService" << std::endl;
    const std::string fileName = iConfig.getParameter<std::string>("fileName");
        
    using namespace boost::python;
        
    command_ = "from "+fileName + " import *\n";
    object main_module(( boost::python::handle<>(borrowed(PyImport_AddModule("__main__"))) ));
    object main_namespace = main_module.attr("__dict__");
    try {
      object result((boost::python::handle<>(PyRun_String(command_.c_str(),
                                           Py_file_input,
                                           main_namespace.ptr(),
                                           main_namespace.ptr()))));
      service_ = main_namespace["service"];
    } catch( ... ) {
      throw cms::Exception("Configuration") <<"No 'service' python variable defined in given fileName parameter.\n Please create an instance of the python class you want to use and pass that instance to the variable named 'service'.";
    }
        
    // connect methods and signals
    // later on here will be a check what python methods are present
    // for now we expect postBeginJob, postEndJob and postProcessEvent
        
    iRegistry.watchPostBeginJob(this,&PythonService::postBeginJob);
    iRegistry.watchPostEndJob(this,&PythonService::postEndJob);
    iRegistry.watchPostProcessEvent(this,&PythonService::postProcessEvent);
}

PythonService::~PythonService

(

)

Definition at line 59 of file PythonService.cc.

{
}

---

Member Function Documentation

void PythonService::postBeginJob

(

)

Definition at line 67 of file PythonService.cc.

References pythonToCppException(), HLT_VtxMuL3::result, and service_.

Referenced by PythonService().

{
        using namespace boost::python;
    object main_module((boost::python::handle<>(borrowed(PyImport_AddModule("__main__")))));   
    object main_namespace = main_module.attr("__dict__");
    main_namespace["tempService"] = service_;

    try {
      object result((boost::python::handle<>(PyRun_String("tempService.postBeginJob()",
                                           Py_eval_input,
                                           main_namespace.ptr(),
                                           main_namespace.ptr()))));      
    }catch( error_already_set ) {
      pythonToCppException("RuntimeError");
    }
}

void PythonService::postEndJob

(

)

Definition at line 85 of file PythonService.cc.

References pythonToCppException(), HLT_VtxMuL3::result, and service_.

Referenced by PythonService().

{
    using namespace boost::python;
    object main_module((boost::python::handle<>(borrowed(PyImport_AddModule("__main__")))));   
    object main_namespace = main_module.attr("__dict__");
    main_namespace["tempService"] = service_;

    try {
       object result((boost::python::handle<>(PyRun_String("tempService.postEndJob()",
                                           Py_eval_input,
                                           main_namespace.ptr(),
                                           main_namespace.ptr()))));      
    }catch( error_already_set ) {
       pythonToCppException("RuntimeError");
    }
}

void PythonService::postProcessEvent	(	const edm::Event &	,
		const edm::EventSetup &
	)

Definition at line 109 of file PythonService.cc.

References pythonToCppException(), HLT_VtxMuL3::result, and service_.

Referenced by PythonService().

{
    using namespace boost::python;
    object main_module((boost::python::handle<>(borrowed(PyImport_AddModule("__main__")))));   
    object main_namespace = main_module.attr("__dict__");
    main_namespace["tempService"] = service_;

    try {
       object result((boost::python::handle<>(PyRun_String("tempService.postProcessEvent()",
                                           Py_eval_input,
                                           main_namespace.ptr(),
                                           main_namespace.ptr()))));      
    }catch( error_already_set ) {
       pythonToCppException("RuntimeError");
    }

}

void PythonService::preProcessEvent	(	const edm::EventID &	iID,
		const edm::Timestamp &	iTime
	)

Definition at line 103 of file PythonService.cc.

{
   
}

---

Member Data Documentation

std::string PythonService::command_ [private]

Definition at line 45 of file PythonService.h.

Referenced by PythonService().

std::string PythonService::fileName_ [private]

Definition at line 44 of file PythonService.h.

PythonManagerHandle PythonService::handle_ [private]

Definition at line 42 of file PythonService.h.

boost::python::object PythonService::service_ [private]

Definition at line 43 of file PythonService.h.

Referenced by postBeginJob(), postEndJob(), postProcessEvent(), and PythonService().

---

The documentation for this class was generated from the following files:

• FWCore/Python/src/PythonService.h
• FWCore/Python/src/PythonService.cc

---