class Master(Singleton):
"""
BFarm master server
"""
def initInstance(self):
"""
Initialize master
"""
# Set signal handlers
self.setSignals()
self.setupLogger()
# Create servers
xmlrpc_address = (Config.master['address'], Config.master['port'])
http_address = (Config.master['http_address'],
Config.master['http_port'])
self.render_server = RenderServer()
self.xmlrpc_server = XMLRPCServer(xmlrpc_address)
self.http_server = HTTPServer(http_address)
# Create ORM mapper
self.mapper = Mapper(Config.master['database_path'])
self.unwind(self.mapper)
def loggerHandler(self, message):
"""
Handler of new incoming logging message
"""
self.log_server.logMessage('server', message)
def setupLogger(self):
"""
Setup logging infrastructure
"""
self.log_server = LogServer()
self.log_server.addSource('server')
Logger.addLoggerHandler(self.loggerHandler)
def unwind(self, mapper):
"""
Unwind all structures stored in database
"""
self.render_server.unwind(mapper)
def sigint_handler(self, sig, frame):
"""
Handler of SIGINT signal
"""
Logger.log('Caught SIGINT signal, terminating...')
self.render_server.requestStop()
def setSignals(self):
"""
Set signals handlers
"""
signal.signal(signal.SIGINT,
lambda sig, frame: self.sigint_handler(sig, frame))
def run(self):
"""
Run master logic
"""
# Start server threads
self.render_server.start()
self.xmlrpc_server.start()
self.http_server.start()
# Join main render thread
self.render_server.join()
# XML and HTTP servers should be stopped
# after main render server finito
self.xmlrpc_server.requestStop()
self.xmlrpc_server.join()
# Do not join HTTP server due to some clients could
# still be connected (chrome, i.e. locks handle_request)
# not sure why this happens, but better use
# daemon thread for web server
self.http_server.requestStop()
#self.http_server.join()
# Flush all posible changes to database
self.mapper.flush()
def getRenderServer(self):
"""
Get render server instance
"""
return self.render_server
def getHTTPServer(self):
"""
Get render server instance
"""
return self.http_server
def getMapper(self):
"""
Get ORM mapper
"""
return self.mapper
def getLogServer(self):
"""
Get logging server
"""
return self.log_server
class Master(Singleton):
"""
BFarm master server
"""
def initInstance(self):
"""
Initialize master
"""
# Set signal handlers
self.setSignals()
self.setupLogger()
# Create servers
xmlrpc_address = (Config.master['address'], Config.master['port'])
http_address = (Config.master['http_address'],
Config.master['http_port'])
self.render_server = RenderServer()
self.xmlrpc_server = XMLRPCServer(xmlrpc_address)
self.http_server = HTTPServer(http_address)
# Create ORM mapper
self.mapper = Mapper(Config.master['database_path'])
self.unwind(self.mapper)
def loggerHandler(self, message):
"""
Handler of new incoming logging message
"""
self.log_server.logMessage('server', message)
def setupLogger(self):
"""
Setup logging infrastructure
"""
self.log_server = LogServer()
self.log_server.addSource('server')
Logger.addLoggerHandler(self.loggerHandler)
def unwind(self, mapper):
"""
Unwind all structures stored in database
"""
self.render_server.unwind(mapper)
def sigint_handler(self, sig, frame):
"""
Handler of SIGINT signal
"""
Logger.log('Caught SIGINT signal, terminating...')
self.render_server.requestStop()
def setSignals(self):
"""
Set signals handlers
"""
signal.signal(signal.SIGINT,
lambda sig, frame: self.sigint_handler(sig, frame))
def run(self):
"""
Run master logic
"""
# Start server threads
self.render_server.start()
self.xmlrpc_server.start()
self.http_server.start()
# Join main render thread
self.render_server.join()
# XML and HTTP servers should be stopped
# after main render server finito
self.xmlrpc_server.requestStop()
self.xmlrpc_server.join()
# Do not join HTTP server due to some clients could
# still be connected (chrome, i.e. locks handle_request)
# not sure why this happens, but better use
# daemon thread for web server
self.http_server.requestStop()
#self.http_server.join()
# Flush all posible changes to database
self.mapper.flush()
def getRenderServer(self):
"""
Get render server instance
"""
return self.render_server
def getHTTPServer(self):
"""
Get render server instance
"""
return self.http_server
def getMapper(self):
"""
Get ORM mapper
"""
return self.mapper
def getLogServer(self):
"""
Get logging server
"""
return self.log_server