def nsc_findNS(self, ident=None):
"""
Locating the Name Server by using given nsHost and nsPort
"""
locator = NameServerLocator(identification=ident)
try:
if self.nsHost:
self._log('connecting to Name Server (%s:%s)' % (self.nsHost,
self.nsPort))
self.NS = locator.getNS(self.nsHost, self.nsPort, trace=1, bcaddr=self.bcAddr)
else:
self._log('broadcasting to find Name Server')
self.NS = locator.getNS(None, None, trace = 1, bcaddr=self.bcAddr)
self.nsHost = self.NS.URI.address
self.nsPort = self.NS.URI.port
self.NS._setIdentification(ident)
self._log('Name Server found, URI = %s' % self.NS.URI)
self._setNSData()
except ConnectionDeniedError, e:
if str(e).find( Pyro.constants.deniedReasons[Pyro.constants.DENIED_SECURITY] ) != -1:
msg = 'Authentication required:'
dlg = wx.TextEntryDialog(self, msg, 'Authentication',
style=wx.OK|wx.CANCEL|wx.TE_PASSWORD)
dlg.CentreOnParent()
if dlg.ShowModal() == wx.ID_OK:
ident = dlg.GetValue()
self.nsc_findNS(ident)
else:
self.NS = None
self._log('Connection to Name Server denied!','error')
else:
self.NS = None
self._logError('Unable to connect to Name Server')
def nsc_findNS(self, ident=None):
"""
Locating the Name Server by using given nsHost and nsPort
"""
locator = NameServerLocator(identification=ident)
try:
if self.nsHost:
self._log('connecting to Name Server (%s:%s)' % (self.nsHost,
self.nsPort))
self.NS = locator.getNS(self.nsHost, self.nsPort, trace=1, bcaddr=self.bcAddr)
else:
self._log('broadcasting to find Name Server')
self.NS = locator.getNS(None, None, trace = 1, bcaddr=self.bcAddr)
self.nsHost = self.NS.URI.address
self.nsPort = self.NS.URI.port
self.NS._setIdentification(ident)
self._log('Name Server found, URI = %s' % self.NS.URI)
self._setNSData()
except ConnectionDeniedError, e:
if str(e).find( Pyro.constants.deniedReasons[Pyro.constants.DENIED_SECURITY] ) != -1:
msg = 'Authentication required:'
dlg = wx.TextEntryDialog(self, msg, 'Authentication',
style=wx.OK|wx.CANCEL|wx.TE_PASSWORD)
dlg.CentreOnParent()
if dlg.ShowModal() == wx.ID_OK:
ident = dlg.GetValue()
self.nsc_findNS(ident)
else:
self.NS = None
self._log('Connection to Name Server denied!','error')
else:
self.NS = None
self._logError('Unable to connect to Name Server')
def configure(self):
pyro_obj = ObjBase()
pyro_obj.delegateTo(self.service_obj)
(self.pd, pd) = (Daemon(), Daemon())
ns = NameServerLocator().getNS()
pd.useNameServer(ns)
pyro_id = 'REMOTESVC' + to_str(self.service_id)
try:
ns.unregister(pyro_id)
except NamingError:
pass
pd.connect(pyro_obj, pyro_id)
self.service_obj.set_external_ref(pd.getProxyForObj(pyro_obj))
def connect(self, sysCmd=None):
host = self.Args.getOpt('h',None)
bcaddr = self.Args.getOpt('c',None)
port = int(self.Args.getOpt('p', 0))
ident = self.Args.getOpt('i',None)
if port==0:
port=None
locator = NameServerLocator(identification=ident)
if not sysCmd:
self.NS = locator.getNS(host,port,1,bcaddr=bcaddr)
print 'NS is at',self.NS.URI.address,'('+(getHostname(self.NS.URI.address) or '??')+') port',self.NS.URI.port
self.NS._setIdentification(ident)
else:
result = locator.sendSysCommand(sysCmd,host,port,1,bcaddr=bcaddr)
print 'Result from system command',sysCmd,':',result
def configure(self):
pyro_obj = ObjBase()
pyro_obj.delegateTo(self.service_obj)
#Start the Pyro Daemon and register the ProcessInst object
self.pd = pd = Daemon()
ns = NameServerLocator().getNS()
pd.useNameServer(ns)
pyro_id = "REMOTESVC" + to_str(self.service_id)
#Remove any existing reference to this id
try:
ns.unregister(pyro_id)
except NamingError:
#the name is not found, which is fine
pass
pd.connect(pyro_obj, pyro_id)
#set the pyro self reference
self.service_obj.set_external_ref(pd.getProxyForObj(pyro_obj))
def __init__(self):
self.processes = []
#check if pyro name server is runnign
try:
NameServerLocator().getNS()
except NamingError:
raise ServiceException("Pyro name server is not found. \
Please run pyro-ns")
initClient()
def configure(self):
#Start the Pyro Daemon and register the ProcessInst object
self.pd = pd = Daemon()
ns = NameServerLocator().getNS()
pd.useNameServer(ns)
logger.debug("Local Pyro started")
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
import time
from convirt.core.utils.utils import to_unicode, to_str
import logging
logger = logging.getLogger("convirt.services")
enable_processes = True
try:
from processing import Process
from Pyro.core import ObjBase, Daemon, getProxyForURI, initClient
from Pyro.naming import NameServerLocator
from Pyro.errors import NamingError
try:
NameServerLocator().getNS()
except NamingError:
enable_processes = False
except ImportError:
enable_processes = False
#######################
## Executor Interface
#######################
class Executor:
""" This interface defines what an executor is supposed to do. The executor
is responsible for maintaining a running instance of a service. Various
methods of execution such as thread or processes are supported.
The reason why executor and service interfaces are separate is because