class Service:
SVC_VALID_ACTIONS = { 'RPC' : 'export',
'FileTransfer': 'transfer',
'Message' : 'msg',
'Connection' : 'Message' }
SVC_SECLOG_CLIENT = SecurityLogClient()
def __init__( self, serviceName ):
self._name = serviceName
self._startTime = Time.dateTime()
self._cfg = ServiceConfiguration( serviceName )
self._validNames = [ self._name ]
self._monitor = MonitoringClient()
self.__monitorLastStatsUpdate = time.time()
self._stats = { 'queries' : 0, 'connections' : 0 }
self._authMgr = AuthManager( "%s/Authorization" % self._cfg.getServicePath() )
self._transportPool = getGlobalTransportPool()
self.__cloneId = 0
def setCloneProcessId( self, cloneId ):
self.__cloneId = cloneId
self._monitor.setComponentName( "%s-Clone:%s" % ( self._name, cloneId ) )
def _isMetaAction( self, action ):
referedAction = Service.SVC_VALID_ACTIONS[ action ]
if referedAction in Service.SVC_VALID_ACTIONS:
return referedAction
return False
def initialize( self ):
#Build the URLs
self._url = self._cfg.getURL()
if not self._url:
return S_ERROR( "Could not build service URL for %s" % self._name )
gLogger.verbose( "Service URL is %s" % self._url )
#Discover Handler
self._handlerLocation = self._discoverHandlerLocation()
if not self._handlerLocation:
return S_ERROR( "Could not find handler location for %s" % self._name )
gLogger.verbose( "Handler found at %s" % self._handlerLocation )
#Load handler
result = self._loadHandler()
if not result[ 'OK' ]:
return result
self._handler = result[ 'Value' ]
#Initialize lock manager
self._lockManager = LockManager( self._cfg.getMaxWaitingPetitions() )
#Load actions
result = self._loadActions()
if not result[ 'OK' ]:
return result
self._actions = result[ 'Value' ]
self._initMonitoring()
self._threadPool = ThreadPool( 1,
max( 0, self._cfg.getMaxThreads() ),
self._cfg.getMaxWaitingPetitions() )
self._threadPool.daemonize()
self._msgBroker = MessageBroker( "%sMSB" % self._name, threadPool = self._threadPool )
#Create static dict
self._serviceInfoDict = { 'serviceName' : self._name,
'URL' : self._cfg.getURL(),
'systemSectionPath' : self._cfg.getSystemPath(),
'serviceSectionPath' : self._cfg.getServicePath(),
'messageSender' : MessageSender( self._msgBroker )
}
#Call static initialization function
try:
if self._handler[ 'init' ]:
result = self._handler[ 'init' ]( dict( self._serviceInfoDict ) )
if not isReturnStructure( result ):
return S_ERROR( "Service initialization function must return S_OK/S_ERROR" )
if not result[ 'OK' ]:
return S_ERROR( "Error while initializing %s: %s" % ( self._name, result[ 'Message' ] ) )
except Exception, e:
errMsg = "Exception while intializing %s" % self._name
gLogger.exception( errMsg )
return S_ERROR( errMsg )
gThreadScheduler.addPeriodicTask( 30, self.__reportThreadPoolContents )
return S_OK()
