def connectToClusterServer(self, useSSL, certificatePath, clusterServerIP,
clusterServerListenningPort,
statusDBUpdateInterval, commandTimeout,
commandTimeoutCheckInterval):
"""
Establishes a connection with the cluster server
Args:
certificatePath: the directory where the server.crt and server.key files are
clusterServerIP: the cluster server's IP address
clusterServerListenningPort: the cluster server commands connection's port
statusDBUpdateInterval: the database update interval (in seconds)
Returns:
Nothing
"""
self.__networkManager = NetworkManager(certificatePath)
self.__networkManager.startNetworkService()
self.__clusterServerIP = clusterServerIP
self.__clusterServerPort = clusterServerListenningPort
self.__packetHandler = ClusterServerPacketHandler(
self.__networkManager)
self.__commandsProcessor = CommandsProcessor(
self.__commandsHandler, self.__packetHandler,
self.__networkManager, self.__clusterServerIP,
self.__clusterServerPort, self.__commandsDBConnector,
self.__endpointDBConnector)
packetReactor = ClusterEndpointPacketReactor(
self.__codeTranslator, self.__commandsHandler,
self.__packetHandler, self.__commandsProcessor,
self.__endpointDBConnector, self.__commandsDBConnector)
try:
self.__networkManager.connectTo(clusterServerIP,
clusterServerListenningPort, 5,
packetReactor, useSSL)
while (not self.__networkManager.isConnectionReady(
clusterServerIP, clusterServerListenningPort)):
sleep(0.1)
self.__updateRequestThread = VMServerMonitoringThread(
self.__packetHandler, self.__networkManager,
self.__commandsProcessor, self.__clusterServerIP,
self.__clusterServerPort, statusDBUpdateInterval)
self.__updateRequestThread.start()
self.__commandExecutionThread = CommandsMonitoringThread(
self.__commandsDBConnector, commandTimeout,
self.__commandsHandler, commandTimeoutCheckInterval)
self.__commandExecutionThread.start()
except NetworkManagerException as e:
raise Exception(e.message)
def connectToClusterServer(self, useSSL, certificatePath, clusterServerIP, clusterServerListenningPort, statusDBUpdateInterval,
commandTimeout, commandTimeoutCheckInterval):
"""
Establishes a connection with the cluster server
Args:
certificatePath: the directory where the server.crt and server.key files are
clusterServerIP: the cluster server's IP address
clusterServerListenningPort: the cluster server commands connection's port
statusDBUpdateInterval: the database update interval (in seconds)
Returns:
Nothing
"""
self.__networkManager = NetworkManager(certificatePath)
self.__networkManager.startNetworkService()
self.__clusterServerIP = clusterServerIP
self.__clusterServerPort = clusterServerListenningPort
self.__packetHandler = ClusterServerPacketHandler(self.__networkManager)
self.__commandsProcessor = CommandsProcessor(self.__commandsHandler, self.__packetHandler, self.__networkManager,
self.__clusterServerIP, self.__clusterServerPort, self.__commandsDBConnector, self.__endpointDBConnector)
packetReactor = ClusterEndpointPacketReactor(self.__codeTranslator, self.__commandsHandler, self.__packetHandler, self.__commandsProcessor,
self.__endpointDBConnector, self.__commandsDBConnector)
try :
self.__networkManager.connectTo(clusterServerIP, clusterServerListenningPort, 5, packetReactor, useSSL)
while (not self.__networkManager.isConnectionReady(clusterServerIP, clusterServerListenningPort)) :
sleep(0.1)
self.__updateRequestThread = VMServerMonitoringThread(self.__packetHandler, self.__networkManager, self.__commandsProcessor,
self.__clusterServerIP, self.__clusterServerPort, statusDBUpdateInterval)
self.__updateRequestThread.start()
self.__commandExecutionThread = CommandsMonitoringThread(self.__commandsDBConnector, commandTimeout, self.__commandsHandler, commandTimeoutCheckInterval)
self.__commandExecutionThread.start()
except NetworkManagerException as e :
raise Exception(e.message)
class ClusterEndpointEntryPoint(object):
"""
These objects create, run and stop the cluster endpoint daemons.
"""
def __init__(self):
"""
Initializes the daemon's state
Args:
None
"""
self.__commandExecutionThread = None
self.__updateRequestThread = None
self.__codeTranslator = SpanishCodesTranslator()
self.__commandsHandler = CommandsHandler(self.__codeTranslator)
def connectToDatabases(self, mysqlRootsPassword, endpointDBName,
commandsDBName, endpointdbSQLFilePath,
commandsDBSQLFilePath, websiteUser,
websiteUserPassword, endpointUser,
endpointUserPassword, minCommandInterval):
"""
Establishes the connection with the two databases
Args:
mysqlRootsPassword: the MySQL root's password
endpointDBName: the endpoint database's name
endpointdbSQLFilePath: the endpoint database's schema definition file path
websiteUser: the web application's username
websiteUserPassword: the web application's username
endpointUser: the endpoint daemon user's name
endpointUserPassword: the endpoint daemon user's password
"""
self.__rootsPassword = mysqlRootsPassword
self.__statusDatabaseName = endpointDBName
self.__commandsDatabaseName = commandsDBName
configurator = DBConfigurator(mysqlRootsPassword)
configurator.runSQLScript(endpointDBName, endpointdbSQLFilePath,
"root", mysqlRootsPassword)
configurator.runSQLScript(commandsDBName, commandsDBSQLFilePath,
"root", mysqlRootsPassword)
configurator.addUser(websiteUser, websiteUserPassword, endpointDBName,
False)
configurator.addUser(endpointUser, endpointUserPassword,
endpointDBName, True)
configurator.addUser(websiteUser, websiteUserPassword, commandsDBName,
True)
configurator.addUser(endpointUser, endpointUserPassword,
commandsDBName, True)
self.__commandsDBConnector = CommandsDatabaseConnector(
endpointUser, endpointUserPassword, commandsDBName,
minCommandInterval)
self.__endpointDBConnector = ClusterEndpointDBConnector(
endpointUser, endpointUserPassword, endpointDBName)
def connectToClusterServer(self, useSSL, certificatePath, clusterServerIP,
clusterServerListenningPort,
statusDBUpdateInterval, commandTimeout,
commandTimeoutCheckInterval):
"""
Establishes a connection with the cluster server
Args:
certificatePath: the directory where the server.crt and server.key files are
clusterServerIP: the cluster server's IP address
clusterServerListenningPort: the cluster server commands connection's port
statusDBUpdateInterval: the database update interval (in seconds)
Returns:
Nothing
"""
self.__networkManager = NetworkManager(certificatePath)
self.__networkManager.startNetworkService()
self.__clusterServerIP = clusterServerIP
self.__clusterServerPort = clusterServerListenningPort
self.__packetHandler = ClusterServerPacketHandler(
self.__networkManager)
self.__commandsProcessor = CommandsProcessor(
self.__commandsHandler, self.__packetHandler,
self.__networkManager, self.__clusterServerIP,
self.__clusterServerPort, self.__commandsDBConnector,
self.__endpointDBConnector)
packetReactor = ClusterEndpointPacketReactor(
self.__codeTranslator, self.__commandsHandler,
self.__packetHandler, self.__commandsProcessor,
self.__endpointDBConnector, self.__commandsDBConnector)
try:
self.__networkManager.connectTo(clusterServerIP,
clusterServerListenningPort, 5,
packetReactor, useSSL)
while (not self.__networkManager.isConnectionReady(
clusterServerIP, clusterServerListenningPort)):
sleep(0.1)
self.__updateRequestThread = VMServerMonitoringThread(
self.__packetHandler, self.__networkManager,
self.__commandsProcessor, self.__clusterServerIP,
self.__clusterServerPort, statusDBUpdateInterval)
self.__updateRequestThread.start()
self.__commandExecutionThread = CommandsMonitoringThread(
self.__commandsDBConnector, commandTimeout,
self.__commandsHandler, commandTimeoutCheckInterval)
self.__commandExecutionThread.start()
except NetworkManagerException as e:
raise Exception(e.message)
def doEmergencyStop(self):
"""
Stops the endpoint daemon immediately
Args:
None
Returns:
Nothing
"""
self.__networkManager.stopNetworkService()
if (self.__updateRequestThread != None):
self.__updateRequestThread.stop()
if (self.__commandExecutionThread != None):
self.__commandExecutionThread.stop()
def disconnectFromClusterServer(self):
"""
Closes the connection with the cluster server
Args:
None
Devuelve:
Nada
"""
p = self.__packetHandler.createHaltPacket(
self.__commandsProcessor.haltVMServers())
errorMessage = self.__networkManager.sendPacket(
self.__clusterServerIP, self.__clusterServerPort, p)
NetworkManager.printConnectionWarningIfNecessary(
self.__clusterServerIP, self.__clusterServerPort,
"Cluster server halt", errorMessage)
self.__updateRequestThread.stop()
self.__commandExecutionThread.stop()
self.closeNetworkConnections()
def closeNetworkConnections(self):
"""
Closes the network connections
Args:
None
Returns:
Nothing
"""
self.__networkManager.stopNetworkService()
def processCommands(self):
"""
Processes the users' requests
Args:
None
Returns:
Nothing
"""
self.__commandsProcessor.processCommands()
class ClusterEndpointEntryPoint(object):
"""
These objects create, run and stop the cluster endpoint daemons.
"""
def __init__(self):
"""
Initializes the daemon's state
Args:
None
"""
self.__commandExecutionThread = None
self.__updateRequestThread = None
self.__codeTranslator = SpanishCodesTranslator()
self.__commandsHandler = CommandsHandler(self.__codeTranslator)
def connectToDatabases(self, mysqlRootsPassword, endpointDBName, commandsDBName, endpointdbSQLFilePath, commandsDBSQLFilePath,
websiteUser, websiteUserPassword, endpointUser, endpointUserPassword, minCommandInterval):
"""
Establishes the connection with the two databases
Args:
mysqlRootsPassword: the MySQL root's password
endpointDBName: the endpoint database's name
endpointdbSQLFilePath: the endpoint database's schema definition file path
websiteUser: the web application's username
websiteUserPassword: the web application's username
endpointUser: the endpoint daemon user's name
endpointUserPassword: the endpoint daemon user's password
"""
self.__rootsPassword = mysqlRootsPassword
self.__statusDatabaseName = endpointDBName
self.__commandsDatabaseName = commandsDBName
configurator = DBConfigurator(mysqlRootsPassword)
configurator.runSQLScript(endpointDBName, endpointdbSQLFilePath, "root", mysqlRootsPassword)
configurator.runSQLScript(commandsDBName, commandsDBSQLFilePath, "root", mysqlRootsPassword)
configurator.addUser(websiteUser, websiteUserPassword, endpointDBName, False)
configurator.addUser(endpointUser, endpointUserPassword, endpointDBName, True)
configurator.addUser(websiteUser, websiteUserPassword, commandsDBName, True)
configurator.addUser(endpointUser, endpointUserPassword, commandsDBName, True)
self.__commandsDBConnector = CommandsDatabaseConnector(endpointUser, endpointUserPassword,
commandsDBName, minCommandInterval)
self.__endpointDBConnector = ClusterEndpointDBConnector(endpointUser, endpointUserPassword, endpointDBName)
def connectToClusterServer(self, useSSL, certificatePath, clusterServerIP, clusterServerListenningPort, statusDBUpdateInterval,
commandTimeout, commandTimeoutCheckInterval):
"""
Establishes a connection with the cluster server
Args:
certificatePath: the directory where the server.crt and server.key files are
clusterServerIP: the cluster server's IP address
clusterServerListenningPort: the cluster server commands connection's port
statusDBUpdateInterval: the database update interval (in seconds)
Returns:
Nothing
"""
self.__networkManager = NetworkManager(certificatePath)
self.__networkManager.startNetworkService()
self.__clusterServerIP = clusterServerIP
self.__clusterServerPort = clusterServerListenningPort
self.__packetHandler = ClusterServerPacketHandler(self.__networkManager)
self.__commandsProcessor = CommandsProcessor(self.__commandsHandler, self.__packetHandler, self.__networkManager,
self.__clusterServerIP, self.__clusterServerPort, self.__commandsDBConnector, self.__endpointDBConnector)
packetReactor = ClusterEndpointPacketReactor(self.__codeTranslator, self.__commandsHandler, self.__packetHandler, self.__commandsProcessor,
self.__endpointDBConnector, self.__commandsDBConnector)
try :
self.__networkManager.connectTo(clusterServerIP, clusterServerListenningPort, 5, packetReactor, useSSL)
while (not self.__networkManager.isConnectionReady(clusterServerIP, clusterServerListenningPort)) :
sleep(0.1)
self.__updateRequestThread = VMServerMonitoringThread(self.__packetHandler, self.__networkManager, self.__commandsProcessor,
self.__clusterServerIP, self.__clusterServerPort, statusDBUpdateInterval)
self.__updateRequestThread.start()
self.__commandExecutionThread = CommandsMonitoringThread(self.__commandsDBConnector, commandTimeout, self.__commandsHandler, commandTimeoutCheckInterval)
self.__commandExecutionThread.start()
except NetworkManagerException as e :
raise Exception(e.message)
def doEmergencyStop(self):
"""
Stops the endpoint daemon immediately
Args:
None
Returns:
Nothing
"""
self.__networkManager.stopNetworkService()
if (self.__updateRequestThread != None):
self.__updateRequestThread.stop()
if (self.__commandExecutionThread != None):
self.__commandExecutionThread.stop()
def disconnectFromClusterServer(self):
"""
Closes the connection with the cluster server
Args:
None
Devuelve:
Nada
"""
p = self.__packetHandler.createHaltPacket(self.__commandsProcessor.haltVMServers())
errorMessage = self.__networkManager.sendPacket(self.__clusterServerIP, self.__clusterServerPort, p)
NetworkManager.printConnectionWarningIfNecessary(self.__clusterServerIP, self.__clusterServerPort, "Cluster server halt",
errorMessage)
self.__updateRequestThread.stop()
self.__commandExecutionThread.stop()
self.closeNetworkConnections()
def closeNetworkConnections(self):
"""
Closes the network connections
Args:
None
Returns:
Nothing
"""
self.__networkManager.stopNetworkService()
def processCommands(self):
"""
Processes the users' requests
Args:
None
Returns:
Nothing
"""
self.__commandsProcessor.processCommands()