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# Copyright 2022-2023 ETSI TeraFlowSDN - TFS OSG (https://tfs.etsi.org/)
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json, logging,threading, queue,time,signal
from datetime import datetime, timedelta
from typing import Any, Iterator, List, Optional, Tuple, Union
import logging
import grpc
from concurrent import futures
from lxml import etree
import os
import subprocess
from multiprocessing import Pool
SERVER_ADDRESS = 'localhost:2021'
SERVER_ID = 1
_ONE_DAY_IN_SECONDS = 60 * 60 * 24
#XML_FILE="/var/teraflow/bgpls_speaker/service/resources/BGP4Parameters_2.xml"
XML_CONFIG_FILE="/var/teraflow/pcep/resources/PCEServerConfiguration.xml"
LOGGER = logging.getLogger(__name__)
class JavaRunner:
#def __init__(self,localPort : int, address : str ="10.95.86.214", mngPort : int = 1112):
def __init__(self,address):
#self.__peerPort=11179
#self.__localPort=localPort
#self.__managementPort=mngPort
# To support multiple speakers at same time
# Add 1 to port and then pass port to subproccess call
#self.__configFile=XML_CONFIG_FILE
#self.__process=0
self.__lock = threading.Lock()
self.__address = address
#self.__portConf=6666
#self.__pceAddress="10.95.43.16"
#self.__asNumber=1
def getCurrentLocalPort(self):
with self.__lock:
return self.__localPort
def getCurrentMngPort(self):
with self.__lock:
return self.__managementPort
def getPid(self):
return self.__process.pid
def execAndKill(self):
LOGGER.debug("Before exec and kill")
os.chdir("/var/teraflow/pcep/service/resources/")
cwd = os.getcwd()
LOGGER.info("Current working directory: %s", cwd)
# Security shell=False
self.__process=subprocess.Popen(['java -jar Ejecutable.jar '+ XML_CONFIG_FILE],
shell=False,start_new_session=True,stdout=subprocess.PIPE)
LOGGER.debug("Time to sleep")
java_pid = self.__process.pid
print("Java PID:", java_pid)
time.sleep(15)
self.__process.terminate()
def execPcep(self) -> bool:
"""
Executes java pcep in non-blocking process
"""
# CHECKEAR muchas cosas
LOGGER.debug("Before exec")
os.chdir("/var/teraflow/pcep/service/resources/")
# Security reasons shell=False
self.__process=subprocess.Popen(['java' , '-jar' , 'Ejecutable.jar' , XML_CONFIG_FILE],
shell=False,start_new_session=True)
return self.__process
def setPort(self,port):
self.__peerPort=port
return True
def setAsNumber(self,asNumber):
self.__asNumber=asNumber
return True
def setPeer(self) -> bool:
"""
Sets XML existing config file with peer address and port. TODO: as_number
"""
#XMLParser = etree.XMLParser(remove_blank_text=False)
#tree = etree.parse(XML_FILE, parser=XMLParser)
#root = tree.getroot()
##peerAddress = root.find(".//peer")
##peerAddress.text=self.__address
#peerPort = root.find(".//peerPort")
#peerPort.text=str(self.__peerPort)
#localPort = root.find(".//BGP4Port")
#localPort.text=str(self.__localPort)
#myAutonomousSystem = root.find(".//myAutonomousSystem")
#myAutonomousSystem.text=str(self.__asNumber)
#managePort = root.find(".//BGP4ManagementPort")
#managePort.text=str(self.__managementPort)
#tree.write(XML_FILE) #with ... as ..
XMLParser = etree.XMLParser(remove_blank_text=False)
tree = etree.parse(XML_CONFIG_FILE, parser=XMLParser)
root = tree.getroot()
#portConf = root.find(".//PCEManagementPort")
#portConf.text=str(self.__portConf)
pceAddress = root.find(".//LocalPCEAddress")
LOGGER.debug("Valor anterior de LocalPCEAddress: %s", pceAddress.text)
pceAddress.text=str(self.__address)
LOGGER.debug("Valor posterior de LocalPCEAddress: %s", pceAddress.text)
tree.write(XML_CONFIG_FILE)
return True
def endBGPSpeaker(self) -> bool:
"""
Kills java program connected to BGPLS Speaker with SIGKILL signal
"""
LOGGER.debug("sending kill signal to process %s",self.__process.pid)
# time.sleep(15)
LOGGER.debug("PID: %d",self.__process.pid)
# LOGGER.debug("Group PID: %d",os.getpgid(self.__process.pid))
# os.killpg(os.getpgid(self.__process.pid), signal.SIGKILL)
self.__process.kill()
# .terminate() for SIGTERM
return True
def getRunnerInfo(self):
return self.__address,self.__asNumber,self.__peerPort