PythonScriptingSvc Class Reference

This service handles scripting implemented using Python. More...

#include <GaudiPython/PythonScriptingSvc.h>

Inheritance diagram for PythonScriptingSvc:

Collaboration diagram for PythonScriptingSvc:

Public Member Functions
	PythonScriptingSvc (const std::string &name, ISvcLocator *svc)
	Standard Constructor. More...
StatusCode	initialize () override
	Initialize the service. [IService::initialize()]. More...
StatusCode	finalize () override
	Finalize the service. [IService::finalize()]. More...
StatusCode	run () override
	Run the service by taking full control. [IRunable::run()]. More...
	~PythonScriptingSvc () override
	Destructor. More...
Public Member Functions inherited from extends< Service, IRunable >
void *	i_cast (const InterfaceID &tid) const override
	Implementation of IInterface::i_cast. More...
StatusCode	queryInterface (const InterfaceID &ti, void **pp) override
	Implementation of IInterface::queryInterface. More...
std::vector< std::string >	getInterfaceNames () const override
	Implementation of IInterface::getInterfaceNames. More...
Public Member Functions inherited from Service
const std::string &	name () const override
	Retrieve name of the service. More...
StatusCode	configure () override
StatusCode	initialize () override
StatusCode	start () override
StatusCode	stop () override
StatusCode	finalize () override
StatusCode	terminate () override
Gaudi::StateMachine::State	FSMState () const override
Gaudi::StateMachine::State	targetFSMState () const override
StatusCode	reinitialize () override
StatusCode	restart () override
StatusCode	sysInitialize () override
	Initialize Service. More...
StatusCode	sysStart () override
	Initialize Service. More...
StatusCode	sysStop () override
	Initialize Service. More...
StatusCode	sysFinalize () override
	Finalize Service. More...
StatusCode	sysReinitialize () override
	Re-initialize the Service. More...
StatusCode	sysRestart () override
	Re-initialize the Service. More...
	Service (std::string name, ISvcLocator *svcloc)
	Standard Constructor. More...
SmartIF< ISvcLocator > &	serviceLocator () const override
	Retrieve pointer to service locator. More...
StatusCode	setProperties ()
	Method for setting declared properties to the values specified for the job. More...
template<class T >
StatusCode	service (const std::string &name, const T *&psvc, bool createIf=true) const
	Access a service by name, creating it if it doesn't already exist. More...
template<class T >
StatusCode	service (const std::string &name, T *&psvc, bool createIf=true) const
template<typename IFace = IService>
SmartIF< IFace >	service (const std::string &name, bool createIf=true) const
template<class T >
StatusCode	service (const std::string &svcType, const std::string &svcName, T *&psvc) const
	Access a service by name and type, creating it if it doesn't already exist. More...
template<class T >
StatusCode	declareTool (ToolHandle< T > &handle, std::string toolTypeAndName, bool createIf=true)
	Declare used tool. More...
SmartIF< IAuditorSvc > &	auditorSvc () const
	The standard auditor service.May not be invoked before sysInitialize() has been invoked. More...
Public Member Functions inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
	PropertyHolder ()=default
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Details::PropertyBase &prop)
	Declare a property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, TYPE &value, const std::string &doc="none")
	Helper to wrap a regular data member and use it as a regular property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, Gaudi::Property< TYPE, VERIFIER, HANDLERS > &prop, const std::string &doc="none")
	Declare a PropertyBase instance setting name and documentation. More...
Gaudi::Details::PropertyBase *	declareRemoteProperty (const std::string &name, IProperty *rsvc, const std::string &rname="")
	Declare a remote property. More...
StatusCode	setProperty (const Gaudi::Details::PropertyBase &p) override
	set the property form another property More...
StatusCode	setProperty (const std::string &s) override
	set the property from the formatted string More...
StatusCode	setProperty (const std::string &n, const std::string &v) override
	set the property from name and the value More...
StatusCode	setProperty (const std::string &name, const TYPE &value)
	set the property form the value More...
StatusCode	getProperty (Gaudi::Details::PropertyBase *p) const override
	get the property More...
const Gaudi::Details::PropertyBase &	getProperty (const std::string &name) const override
	get the property by name More...
StatusCode	getProperty (const std::string &n, std::string &v) const override
	convert the property to the string More...
const std::vector< Gaudi::Details::PropertyBase * > &	getProperties () const override
	get all properties More...
bool	hasProperty (const std::string &name) const override
	Return true if we have a property with the given name. More...
	PropertyHolder (const PropertyHolder &)=delete
PropertyHolder &	operator= (const PropertyHolder &)=delete
Public Member Functions inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
MSG::Level	msgLevel () const
	get the cached level (originally extracted from the embedded MsgStream) More...
bool	msgLevel (MSG::Level lvl) const
	get the output level from the embedded MsgStream More...
Public Member Functions inherited from CommonMessagingBase
virtual	~CommonMessagingBase ()=default
	Virtual destructor. More...
const SmartIF< IMessageSvc > &	msgSvc () const
	The standard message service. More...
MsgStream &	msgStream () const
	Return an uninitialized MsgStream. More...
MsgStream &	msgStream (const MSG::Level level) const
	Predefined configurable message stream for the efficient printouts. More...
MsgStream &	always () const
	shortcut for the method msgStream(MSG::ALWAYS) More...
MsgStream &	fatal () const
	shortcut for the method msgStream(MSG::FATAL) More...
MsgStream &	err () const
	shortcut for the method msgStream(MSG::ERROR) More...
MsgStream &	error () const
	shortcut for the method msgStream(MSG::ERROR) More...
MsgStream &	warning () const
	shortcut for the method msgStream(MSG::WARNING) More...
MsgStream &	info () const
	shortcut for the method msgStream(MSG::INFO) More...
MsgStream &	debug () const
	shortcut for the method msgStream(MSG::DEBUG) More...
MsgStream &	verbose () const
	shortcut for the method msgStream(MSG::VERBOSE) More...
MsgStream &	msg () const
	shortcut for the method msgStream(MSG::INFO) More...

Private Attributes
std::string	m_startupScript
	Startup script. More...

Additional Inherited Members
Public Types inherited from extends< Service, IRunable >
using	base_class = extends
	Typedef to this class. More...
using	extend_interfaces_base = extend_interfaces< Interfaces... >
	Typedef to the base of this class. More...
Public Types inherited from Service
using	Factory = Gaudi::PluginService::Factory< IService *(const std::string &, ISvcLocator *)>
Public Types inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
using	PropertyHolderImpl = PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
	Typedef used to refer to this class from derived classes, as in. More...
Public Types inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
using	base_class = CommonMessaging
Public Types inherited from extend_interfaces< Interfaces... >
using	ext_iids = typename Gaudi::interface_list_cat< typename Interfaces::ext_iids... >::type
	take union of the ext_iids of all Interfaces... More...
Protected Member Functions inherited from Service
	~Service () override
	Standard Destructor. More...
int	outputLevel () const
	get the Service's output level More...
Protected Member Functions inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
Gaudi::Details::PropertyBase *	property (const std::string &name) const
Protected Member Functions inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
MSG::Level	setUpMessaging () const
	Set up local caches. More...
MSG::Level	resetMessaging ()
	Reinitialize internal states. More...
void	updateMsgStreamOutputLevel (int level)
	Update the output level of the cached MsgStream. More...
Protected Attributes inherited from Service
Gaudi::StateMachine::State	m_state = Gaudi::StateMachine::OFFLINE
	Service state. More...
Gaudi::StateMachine::State	m_targetState = Gaudi::StateMachine::OFFLINE
	Service state. More...
Gaudi::Property< int >	m_outputLevel {this, "OutputLevel", MSG::NIL, "output level"}
Gaudi::Property< bool >	m_auditInit {this, "AuditServices", false, " unused"}
Gaudi::Property< bool >	m_auditorInitialize {this, "AuditInitialize", false, "trigger auditor on initialize()"}
Gaudi::Property< bool >	m_auditorStart {this, "AuditStart", false, "trigger auditor on start()"}
Gaudi::Property< bool >	m_auditorStop {this, "AuditStop", false, "trigger auditor on stop()"}
Gaudi::Property< bool >	m_auditorFinalize {this, "AuditFinalize", false, "trigger auditor on finalize()"}
Gaudi::Property< bool >	m_auditorReinitialize {this, "AuditReinitialize", false, "trigger auditor on reinitialize()"}
Gaudi::Property< bool >	m_auditorRestart {this, "AuditRestart", false, "trigger auditor on restart()"}
SmartIF< IAuditorSvc >	m_pAuditorSvc
	Auditor Service. More...

Detailed Description

This service handles scripting implemented using Python.

Author

Pere Mato

David Quarrie

Date

2001

Definition at line 25 of file PythonScriptingSvc.h.

Constructor & Destructor Documentation

PythonScriptingSvc()

PythonScriptingSvc::PythonScriptingSvc	(	const std::string &	name,
		ISvcLocator *	svc
	)

Standard Constructor.

Definition at line 44 of file PythonScriptingSvc.cpp.

    : base_class( name, svc ) {
  // Declare the startup script Property
  declareProperty( "StartupScript", m_startupScript = "" );
}

~PythonScriptingSvc()

PythonScriptingSvc::~PythonScriptingSvc ( )

override

Destructor.

Definition at line 52 of file PythonScriptingSvc.cpp.

{}

Member Function Documentation

finalize()

StatusCode PythonScriptingSvc::finalize ( )

override

Finalize the service. [IService::finalize()].

Definition at line 120 of file PythonScriptingSvc.cpp.

{
  // Finalize this specific service
  StatusCode sc = Service::finalize();
  if ( sc.isFailure() ) return sc;

  // Shutdown the Python interpreter
  Py_Finalize();
  return StatusCode::SUCCESS;
}

initialize()

StatusCode PythonScriptingSvc::initialize ( )

override

Initialize the service. [IService::initialize()].

Definition at line 56 of file PythonScriptingSvc.cpp.

{
  // initialize the Service Base class
  StatusCode sc = Service::initialize();
  if ( sc.isFailure() ) return sc;

  // Setup startup script. If none is explicitly specified, then
  // use the ApplicationMgr JobOptionsPath property as long as
  // the JobOptionsType property is set to "NONE".
  if ( m_startupScript.empty() ) {
    auto prpMgr = serviceLocator()->as<IProperty>();
    if ( prpMgr ) {
      Gaudi::Property<std::string> tmp;
      tmp.assign( prpMgr->getProperty( "JobOptionsType" ) );
      if ( tmp.value() == "NONE" ) {
        tmp.assign( prpMgr->getProperty( "JobOptionsPath" ) );
        m_startupScript = tmp;
      }
    }
  }

  // Python 3 compatibility
#if PY_MAJOR_VERSION >= 3
  wchar_t* progName[] = {const_cast<wchar_t*>( L"GaudiPython" )};
#else
  char* progName[] = {const_cast<char*>( "GaudiPython" )};
#endif

  // Initialize the Python interpreter.  Required.
  Py_Initialize();
  // Set argv for Tkinter (needs program name)
  PySys_SetArgv( 1, progName );
  // Get the Python version
  std::string fullversion = Py_GetVersion();
  std::string version( fullversion, 0, fullversion.find_first_of( ' ' ) );
  std::string vers( version, 0, version.find_first_of( '.', version.find_first_of( '.' ) + 1 ) );
  info() << "Python version: [" << vers << "]" << endmsg;

#if defined( __linux )
  // This is hack to make global the python symbols
  // which are needed by the other python modules
  // (eg. readline, math, etc,) libraries.
  std::string libname = "libpython" + vers + ".so";
  dlopen( libname.c_str(), RTLD_GLOBAL | RTLD_LAZY );
#endif

  // Startup commands
  PyRun_SimpleString( "from gaudimodule import *" );
  PyRun_SimpleString( "g      = AppMgr()" );
  // backward compatibility with SIPython
  PyRun_SimpleString( "theApp = g" );
  PyRun_SimpleString( "def Service(n): return g.service(n)" );
  PyRun_SimpleString( "def Algorithm(n): return g.algorithm(n)" );
  PyRun_SimpleString( "def Property(n): return g.service(n)" );
// For command-line completion (unix only)
#if !defined( _WIN32 )
  PyRun_SimpleString( "import rlcompleter" );
  PyRun_SimpleString( "rlcompleter.readline.parse_and_bind('tab: complete')" );
#endif
  return StatusCode::SUCCESS;
}

run()

StatusCode PythonScriptingSvc::run ( )

override

Run the service by taking full control. [IRunable::run()].

Definition at line 133 of file PythonScriptingSvc.cpp.

{
  if ( !m_startupScript.empty() ) {
    std::ifstream     file{m_startupScript};
    std::stringstream stream;
    if ( file ) {
      std::string buffer;
      file.seekg( 0, std::ios::end );
      buffer.reserve( file.tellg() );
      file.seekg( 0, std::ios::beg );
      buffer.assign( ( std::istreambuf_iterator<char>{file} ), std::istreambuf_iterator<char>{} );
      file.close();
      PyRun_SimpleString( buffer.c_str() );
    } else {
      warning() << "Python startup file " << m_startupScript << " not found" << endmsg;
    }
  }
  PyRun_InteractiveLoop( stdin, "\0" );
  return StatusCode::SUCCESS;
}

Member Data Documentation

m_startupScript

std::string PythonScriptingSvc::m_startupScript

private

Startup script.

Definition at line 45 of file PythonScriptingSvc.h.

---

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

• GaudiPython/src/Services/PythonScriptingSvc.h
• GaudiPython/src/Services/PythonScriptingSvc.cpp