| #Licensed to the Apache Software Foundation (ASF) under one |
| #or more contributor license agreements. See the NOTICE file |
| #distributed with this work for additional information |
| #regarding copyright ownership. The ASF licenses this file |
| #to you 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 sys, time, socket, threading, copy, pprint |
| |
| from hodlib.Common.hodsvc import hodBaseService |
| from hodlib.Common.threads import loop |
| from hodlib.Common.tcp import tcpSocket |
| from hodlib.Common.util import get_exception_string |
| import logging |
| |
| class svcrgy(hodBaseService): |
| def __init__(self, config, log=None): |
| hodBaseService.__init__(self, 'serviceRegistry', config) |
| |
| self.__serviceDict = {} |
| self.__failCount = {} |
| self.__released = {} |
| self.__locked = {} |
| |
| self.__serviceDictLock = threading.Lock() |
| self.RMErrorMsgs = None # Ringmaster error messages |
| self.log = log |
| if self.log is None: |
| self.log = logging.getLogger() |
| |
| def __get_job_key(self, userid, job): |
| return "%s-%s" % (userid, job) |
| |
| def _xr_method_registerService(self, userid, job, host, name, type, dict): |
| return self.registerService(userid, job, host, name, type, dict) |
| |
| def _xr_method_getServiceInfo(self, userid=None, job=None, name=None, |
| type=None): |
| return self.getServiceInfo(userid, job, name, type) |
| |
| def _xr_method_setRMError(self, args): |
| self.log.debug("setRMError called with %s" % args) |
| self.RMErrorMsgs = args |
| return True |
| |
| def _xr_method_getRMError(self): |
| self.log.debug("getRMError called") |
| if self.RMErrorMsgs is not None: |
| return self.RMErrorMsgs |
| else: |
| self.log.debug("no Ringmaster error messages") |
| return False |
| |
| def registerService(self, userid, job, host, name, type, dict): |
| """Method thats called upon by |
| the ringmaster to register to the |
| the service registry""" |
| lock = self.__serviceDictLock |
| lock.acquire() |
| try: |
| self.logs['main'].debug("Registering %s.%s.%s.%s.%s..." % ( |
| userid, job, host, name, type)) |
| id = "%s.%s" % (name, type) |
| |
| if userid in self.__serviceDict: |
| if job in self.__serviceDict[userid]: |
| if host in self.__serviceDict[userid][job]: |
| self.__serviceDict[userid][job][host].append( |
| {id : dict,}) |
| else: |
| self.__serviceDict[userid][job][host] = [ |
| {id : dict,},] |
| else: |
| self.__serviceDict[userid][job] = {host : [ |
| { id : dict,},]} |
| else: |
| self.__serviceDict[userid] = {job : {host : [ |
| { id : dict,},]}} |
| |
| finally: |
| lock.release() |
| |
| return True |
| |
| def getXMLRPCAddr(self): |
| """return the xml rpc server address""" |
| return self._xrc.server_address |
| |
| def getServiceInfo(self, userid=None, job=None, name=None, type=None): |
| """This method is called upon by others |
| to query for a particular service returns |
| a dictionary of elements""" |
| |
| self.logs['main'].debug("inside getServiceInfo: %s.%s.%s" % (userid, job, name)) |
| retdict = {} |
| lock = self.__serviceDictLock |
| lock.acquire() |
| try: |
| if userid in self.__serviceDict: |
| if job in self.__serviceDict[userid]: |
| if name and type: |
| retdict = [] |
| id = "%s.%s" % (name, type) |
| for host in self.__serviceDict[userid][job]: |
| for dict in self.__serviceDict[userid][job][host]: |
| [loopID, ] = dict.keys() |
| if loopID == id: |
| retdict.append(dict[id]) |
| else: |
| retdict = copy.deepcopy( |
| self.__serviceDict[userid][job]) |
| elif not job: |
| retdict = copy.deepcopy(self.__serviceDict[userid]) |
| elif not userid: |
| retdict = copy.deepcopy(self.__serviceDict) |
| finally: |
| lock.release() |
| |
| return retdict |
