+#import sys
+from httplib import HTTPConnection, HTTPException
+import json
+#import datetime
+#from time import gmtime, strftime
+import os.path
+#import urllib
+#import urllib2
+from sfa.util.config import Config
+#from sfa.util.xrn import hrn_to_urn, get_authority, Xrn, get_leaf
+
+from sfa.util.sfalogging import logger
+
+OARIP = '194.199.16.166'
+
+
+OAR_REQUEST_POST_URI_DICT = {'POST_job':{'uri': '/oarapi/jobs.json'},
+ 'DELETE_jobs_id':{'uri':'/oarapi/jobs/id.json'},
+ }
+
+POST_FORMAT = {'json' : {'content':"application/json", 'object':json},}
+
+#OARpostdatareqfields = {'resource' :"/nodes=", 'command':"sleep", \
+ #'workdir':"/home/", 'walltime':""}
+
+
+
+
+
+class OARrestapi:
+ def __init__(self, config_file = '/etc/sfa/oar_config.py'):
+ self.oarserver = {}
+
+
+ self.oarserver['uri'] = None
+ self.oarserver['postformat'] = 'json'
+
+ try:
+ execfile(config_file, self.__dict__)
+
+ self.config_file = config_file
+ # path to configuration data
+ self.config_path = os.path.dirname(config_file)
+
+ except IOError:
+ raise IOError, "Could not find or load the configuration file: %s" \
+ % config_file
+ #logger.setLevelDebug()
+ self.oarserver['ip'] = self.OAR_IP
+ self.oarserver['port'] = self.OAR_PORT
+ self.jobstates = ['Terminated', 'Hold', 'Waiting', 'toLaunch', \
+ 'toError', 'toAckReservation', 'Launching', \
+ 'Finishing', 'Running', 'Suspended', 'Resuming',\
+ 'Error']
+
+ self.parser = OARGETParser(self)
+
+
+ def GETRequestToOARRestAPI(self, request, strval=None , username = None ):
+ self.oarserver['uri'] = \
+ OARGETParser.OARrequests_uri_dict[request]['uri']
+ #Get job details with username
+ if 'owner' in OARGETParser.OARrequests_uri_dict[request] and username:
+ self.oarserver['uri'] += OARGETParser.OARrequests_uri_dict[request]['owner'] + username
+ headers = {}
+ data = json.dumps({})
+ logger.debug("OARrestapi \tGETRequestToOARRestAPI %s" %(request))
+ if strval:
+ self.oarserver['uri'] = self.oarserver['uri'].\
+ replace("id",str(strval))
+ logger.debug("OARrestapi: \t GETRequestToOARRestAPI \
+ self.oarserver['uri'] %s strval %s" \
+ %(self.oarserver['uri'], strval))
+ if username:
+ headers['X-REMOTE_IDENT'] = username
+ try :
+ #seems that it does not work if we don't add this
+ headers['content-length'] = '0'
+
+ conn = HTTPConnection(self.oarserver['ip'], \
+ self.oarserver['port'])
+ conn.request("GET", self.oarserver['uri'], data, headers)
+ resp = ( conn.getresponse()).read()
+ conn.close()
+ except HTTPException, error :
+ logger.log_exc("GET_OAR_SRVR : Problem with OAR server : %s " \
+ %(error))
+ #raise ServerError("GET_OAR_SRVR : Could not reach OARserver")
+ try:
+ js_dict = json.loads(resp)
+ return js_dict
+
+ except ValueError, error:
+ logger.log_exc("Failed to parse Server Response: %s ERROR %s"\
+ %(js_dict, error))
+ #raise ServerError("Failed to parse Server Response:" + js)
+
+
+ def POSTRequestToOARRestAPI(self, request, datadict, username=None):
+ """ Used to post a job on OAR , along with data associated
+ with the job.
+
+ """
+
+ #first check that all params for are OK
+ try:
+ self.oarserver['uri'] = OAR_REQUEST_POST_URI_DICT[request]['uri']
+
+ except KeyError:
+ logger.log_exc("OARrestapi \tPOSTRequestToOARRestAPI request not \
+ valid")
+ return
+ if datadict and 'strval' in datadict:
+ self.oarserver['uri'] = self.oarserver['uri'].replace("id", \
+ str(datadict['strval']))
+ del datadict['strval']
+
+ data = json.dumps(datadict)
+ headers = {'X-REMOTE_IDENT':username, \
+ 'content-type': POST_FORMAT['json']['content'], \
+ 'content-length':str(len(data))}
+ try :
+
+ conn = HTTPConnection(self.oarserver['ip'], \
+ self.oarserver['port'])
+ conn.request("POST", self.oarserver['uri'], data, headers)
+ resp = (conn.getresponse()).read()
+ conn.close()
+ except NotConnected:
+ logger.log_exc("POSTRequestToOARRestAPI NotConnected ERROR: \
+ data %s \r\n \t\n \t\t headers %s uri %s" \
+ %(data,headers,self.oarserver['uri']))
+
+ #raise ServerError("POST_OAR_SRVR : error")
+
+ try:
+ answer = json.loads(resp)
+ logger.debug("POSTRequestToOARRestAPI : answer %s" %(answer))
+ return answer
+
+ except ValueError, error:
+ logger.log_exc("Failed to parse Server Response: error %s answer \
+ %s" %(error, answer))
+ #raise ServerError("Failed to parse Server Response:" + answer)
+
+
+
+def AddOarNodeId(tuplelist, value):
+ """ Adds Oar internal node id to the nodes attributes """
+
+ tuplelist.append(('oar_id', int(value)))
+
+
+def AddNodeNetworkAddr(dictnode, value):
+ #Inserts new key. The value associated is a tuple list
+ node_id = value
+
+ dictnode[node_id] = [('node_id', node_id),('hostname', node_id) ]
+
+ return node_id
+
+def AddNodeSite(tuplelist, value):
+ tuplelist.append(('site', str(value)))
+
+def AddNodeRadio(tuplelist, value):
+ tuplelist.append(('radio', str(value)))
+
+
+def AddMobility(tuplelist, value):
+ if value is 0:
+ tuplelist.append(('mobile', 'False'))
+ else :
+ tuplelist.append(('mobile', 'True'))
+
+def AddPosX(tuplelist, value):
+ tuplelist.append(('posx', value))
+
+def AddPosY(tuplelist, value):
+ tuplelist.append(('posy', value))
+
+def AddPosZ(tuplelist, value):
+ tuplelist.append(('posz', value))
+
+def AddBootState(tuplelist, value):
+ tuplelist.append(('boot_state', str(value)))
+
+#Insert a new node into the dictnode dictionary
+def AddNodeId(dictnode, value):
+ #Inserts new key. The value associated is a tuple list
+ node_id = int(value)
+
+ dictnode[node_id] = [('node_id', node_id)]
+ return node_id
+
+def AddHardwareType(tuplelist, value):
+ value_list = value.split(':')
+ tuplelist.append(('archi', value_list[0]))
+ tuplelist.append(('radio', value_list[1]))
+
+
+class OARGETParser:
+ resources_fulljson_dict = {
+ 'network_address' : AddNodeNetworkAddr,
+ 'site': AddNodeSite,
+ 'radio': AddNodeRadio,
+ 'mobile': AddMobility,
+ 'x': AddPosX,
+ 'y': AddPosY,
+ 'z':AddPosZ,
+ 'archi':AddHardwareType,
+ 'state':AddBootState,
+ 'id' : AddOarNodeId,
+ }
+
+
+ def __init__(self, srv) :
+ self.version_json_dict = {
+ 'api_version' : None , 'apilib_version' :None,\
+ 'api_timezone': None, 'api_timestamp': None, 'oar_version': None ,}
+ self.config = Config()
+ self.interface_hrn = self.config.SFA_INTERFACE_HRN
+ self.timezone_json_dict = {
+ 'timezone': None, 'api_timestamp': None, }
+ self.jobs_json_dict = {
+ 'total' : None, 'links' : [],\
+ 'offset':None , 'items' : [], }
+ self.jobs_table_json_dict = self.jobs_json_dict
+ self.jobs_details_json_dict = self.jobs_json_dict
+ self.server = srv
+ self.node_dictlist = {}
+ self.raw_json = None
+ self.site_dict = {}
+ self.SendRequest("GET_version")
+
+
+
+
+
+ def ParseVersion(self) :
+ #print self.raw_json
+ #print >>sys.stderr, self.raw_json
+ if 'oar_version' in self.raw_json :
+ self.version_json_dict.update(api_version = \
+ self.raw_json['api_version'],
+ apilib_version = self.raw_json['apilib_version'],
+ api_timezone = self.raw_json['api_timezone'],
+ api_timestamp = self.raw_json['api_timestamp'],
+ oar_version = self.raw_json['oar_version'] )
+ else :
+ self.version_json_dict.update(api_version = self.raw_json['api'] ,
+ apilib_version = self.raw_json['apilib'],
+ api_timezone = self.raw_json['api_timezone'],
+ api_timestamp = self.raw_json['api_timestamp'],
+ oar_version = self.raw_json['oar'] )
+
+ print self.version_json_dict['apilib_version']
+
+
+ def ParseTimezone(self) :
+ api_timestamp = self.raw_json['api_timestamp']
+ api_tz = self.raw_json['timezone']
+ return api_timestamp, api_tz
+
+ def ParseJobs(self) :
+ self.jobs_list = []
+ print " ParseJobs "
+ return self.raw_json
+
+ def ParseJobsTable(self) :
+ print "ParseJobsTable"
+
+ def ParseJobsDetails (self):
+ # currently, this function is not used a lot,
+ #so i have no idea what be usefull to parse,
+ #returning the full json. NT
+ #logger.debug("ParseJobsDetails %s " %(self.raw_json))
+ return self.raw_json
+
+
+ def ParseJobsIds(self):
+
+ job_resources = ['wanted_resources', 'name', 'id', 'start_time', \
+ 'state','owner','walltime','message']
+
+
+ job_resources_full = ['launching_directory', 'links', \
+ 'resubmit_job_id', 'owner', 'events', 'message', \
+ 'scheduled_start', 'id', 'array_id', 'exit_code', \
+ 'properties', 'state','array_index', 'walltime', \
+ 'type', 'initial_request', 'stop_time', 'project',\
+ 'start_time', 'dependencies','api_timestamp','submission_time', \
+ 'reservation', 'stdout_file', 'types', 'cpuset_name', \
+ 'name', 'wanted_resources','queue','stderr_file','command']
+
+
+ job_info = self.raw_json
+ #logger.debug("OARESTAPI ParseJobsIds %s" %(self.raw_json))
+ values = []
+ try:
+ for k in job_resources:
+ values.append(job_info[k])
+ return dict(zip(job_resources, values))
+
+ except KeyError:
+ logger.log_exc("ParseJobsIds KeyError ")
+
+
+ def ParseJobsIdResources(self):
+ """ Parses the json produced by the request
+ /oarapi/jobs/id/resources.json.
+ Returns a list of oar node ids that are scheduled for the
+ given job id.
+
+ """
+ job_resources = []
+ for resource in self.raw_json['items']:
+ job_resources.append(resource['id'])
+
+ #logger.debug("OARESTAPI \tParseJobsIdResources %s" %(self.raw_json))
+ return job_resources
+
+ def ParseResources(self) :
+ """ Parses the json produced by a get_resources request on oar."""
+
+ #logger.debug("OARESTAPI \tParseResources " )
+ #resources are listed inside the 'items' list from the json
+ self.raw_json = self.raw_json['items']
+ self.ParseNodes()
+
+ def ParseReservedNodes(self):
+ """ Returns an array containing the list of the reserved nodes """
+
+ #resources are listed inside the 'items' list from the json
+ reservation_list = []
+ print "ParseReservedNodes_%s" %(self.raw_json['items'])
+ job = {}
+ #Parse resources info
+ for json_element in self.raw_json['items']:
+ #In case it is a real reservation (not asap case)
+ if json_element['scheduled_start']:
+ job['t_from'] = json_element['scheduled_start']
+ job['t_until'] = int(json_element['scheduled_start']) + \
+ int(json_element['walltime'])
+ #Get resources id list for the job
+ job['resource_ids'] = \
+ [ node_dict['id'] for node_dict in json_element['resources'] ]
+ else:
+ job['t_from'] = "As soon as possible"
+ job['t_until'] = "As soon as possible"
+ job['resource_ids'] = ["Undefined"]
+
+
+ job['state'] = json_element['state']
+ job['lease_id'] = json_element['id']
+
+
+ job['user'] = json_element['owner']
+ #logger.debug("OARRestapi \tParseReservedNodes job %s" %(job))
+ reservation_list.append(job)
+ #reset dict
+ job = {}
+ return reservation_list
+
+ def ParseRunningJobs(self):
+ """ Gets the list of nodes currently in use from the attributes of the
+ running jobs.
+
+ """
+ logger.debug("OARESTAPI \tParseRunningJobs__________________________ ")
+ #resources are listed inside the 'items' list from the json
+ nodes = []
+ for job in self.raw_json['items']:
+ for node in job['nodes']:
+ nodes.append(node['network_address'])
+ return nodes
+
+
+
+ def ParseDeleteJobs(self):
+ """ No need to parse anything in this function.A POST
+ is done to delete the job.
+
+ """
+ return
+
+ def ParseResourcesFull(self) :
+ """ This method is responsible for parsing all the attributes
+ of all the nodes returned by OAR when issuing a get resources full.
+ The information from the nodes and the sites are separated.
+ Updates the node_dictlist so that the dictionnary of the platform's
+ nodes is available afterwards.
+
+ """
+ logger.debug("OARRESTAPI ParseResourcesFull________________________ ")
+ #print self.raw_json[1]
+ #resources are listed inside the 'items' list from the json
+ if self.version_json_dict['apilib_version'] != "0.2.10" :
+ self.raw_json = self.raw_json['items']
+ self.ParseNodes()
+ self.ParseSites()
+ return self.node_dictlist
+
+ def ParseResourcesFullSites(self) :
+ """ UNUSED. Originally used to get information from the sites.
+ ParseResourcesFull is used instead.
+
+ """
+ if self.version_json_dict['apilib_version'] != "0.2.10" :
+ self.raw_json = self.raw_json['items']
+ self.ParseNodes()
+ self.ParseSites()
+ return self.site_dict
+
+
+
+ def ParseNodes(self):
+ """ Parse nodes properties from OAR
+ Put them into a dictionary with key = node id and value is a dictionary
+ of the node properties and properties'values.
+
+ """
+ node_id = None
+ keys = self.resources_fulljson_dict.keys()
+ keys.sort()
+
+ for dictline in self.raw_json:
+ node_id = None
+ # dictionary is empty and/or a new node has to be inserted
+ node_id = self.resources_fulljson_dict['network_address'](\
+ self.node_dictlist, dictline['network_address'])
+ for k in keys:
+ if k in dictline:
+ if k == 'network_address':
+ continue
+
+ self.resources_fulljson_dict[k](\
+ self.node_dictlist[node_id], dictline[k])
+
+ #The last property has been inserted in the property tuple list,
+ #reset node_id
+ #Turn the property tuple list (=dict value) into a dictionary
+ self.node_dictlist[node_id] = dict(self.node_dictlist[node_id])
+ node_id = None
+
+ def slab_hostname_to_hrn(self, root_auth, hostname):
+ return root_auth + '.'+ hostname
+
+
+
+ def ParseSites(self):
+ """ Returns a list of dictionnaries containing the sites' attributes."""
+
+ nodes_per_site = {}
+ config = Config()
+ #logger.debug(" OARrestapi.py \tParseSites self.node_dictlist %s"\
+ #%(self.node_dictlist))
+ # Create a list of nodes per site_id
+ for node_id in self.node_dictlist:
+ node = self.node_dictlist[node_id]
+
+ if node['site'] not in nodes_per_site:
+ nodes_per_site[node['site']] = []
+ nodes_per_site[node['site']].append(node['node_id'])
+ else:
+ if node['node_id'] not in nodes_per_site[node['site']]:
+ nodes_per_site[node['site']].append(node['node_id'])
+
+ #Create a site dictionary whose key is site_login_base (name of the site)
+ # and value is a dictionary of properties, including the list
+ #of the node_ids
+ for node_id in self.node_dictlist:
+ node = self.node_dictlist[node_id]
+ #node.update({'hrn':self.slab_hostname_to_hrn(self.interface_hrn, \
+ #node['site'],node['hostname'])})
+ node.update({'hrn':self.slab_hostname_to_hrn(self.interface_hrn, node['hostname'])})
+ self.node_dictlist.update({node_id:node})
+
+ if node['site'] not in self.site_dict:
+ self.site_dict[node['site']] = {
+ 'site':node['site'],
+ 'node_ids':nodes_per_site[node['site']],
+ 'latitude':"48.83726",
+ 'longitude':"- 2.10336",'name':config.SFA_REGISTRY_ROOT_AUTH,
+ 'pcu_ids':[], 'max_slices':None, 'ext_consortium_id':None,
+ 'max_slivers':None, 'is_public':True, 'peer_site_id': None,
+ 'abbreviated_name':"senslab", 'address_ids': [],
+ 'url':"http,//www.senslab.info", 'person_ids':[],
+ 'site_tag_ids':[], 'enabled': True, 'slice_ids':[],
+ 'date_created': None, 'peer_id': None }
+ #if node['site_login_base'] not in self.site_dict.keys():
+ #self.site_dict[node['site_login_base']] = {'login_base':node['site_login_base'],
+ #'node_ids':nodes_per_site[node['site_login_base']],
+ #'latitude':"48.83726",
+ #'longitude':"- 2.10336",'name':"senslab",
+ #'pcu_ids':[], 'max_slices':None, 'ext_consortium_id':None,
+ #'max_slivers':None, 'is_public':True, 'peer_site_id': None,
+ #'abbreviated_name':"senslab", 'address_ids': [],
+ #'url':"http,//www.senslab.info", 'person_ids':[],
+ #'site_tag_ids':[], 'enabled': True, 'slice_ids':[],
+ #'date_created': None, 'peer_id': None }
+
+
+
+
+ OARrequests_uri_dict = {
+ 'GET_version':
+ {'uri':'/oarapi/version.json', 'parse_func': ParseVersion},
+ 'GET_timezone':
+ {'uri':'/oarapi/timezone.json' ,'parse_func': ParseTimezone },
+ 'GET_jobs':
+ {'uri':'/oarapi/jobs.json','parse_func': ParseJobs},
+ 'GET_jobs_id':
+ {'uri':'/oarapi/jobs/id.json','parse_func': ParseJobsIds},
+ 'GET_jobs_id_resources':
+ {'uri':'/oarapi/jobs/id/resources.json',\
+ 'parse_func': ParseJobsIdResources},
+ 'GET_jobs_table':
+ {'uri':'/oarapi/jobs/table.json','parse_func': ParseJobsTable},
+ 'GET_jobs_details':
+ {'uri':'/oarapi/jobs/details.json',\
+ 'parse_func': ParseJobsDetails},
+ 'GET_reserved_nodes':
+ {'uri':
+ '/oarapi/jobs/details.json?state=Running,Waiting,Launching',\
+ 'owner':'&user=',
+ 'parse_func':ParseReservedNodes},
+
+
+ 'GET_running_jobs':
+ {'uri':'/oarapi/jobs/details.json?state=Running',\
+ 'parse_func':ParseRunningJobs},
+ 'GET_resources_full':
+ {'uri':'/oarapi/resources/full.json',\
+ 'parse_func': ParseResourcesFull},
+ 'GET_sites':
+ {'uri':'/oarapi/resources/full.json',\
+ 'parse_func': ParseResourcesFullSites},
+ 'GET_resources':
+ {'uri':'/oarapi/resources.json' ,'parse_func': ParseResources},
+ 'DELETE_jobs_id':
+ {'uri':'/oarapi/jobs/id.json' ,'parse_func': ParseDeleteJobs}
+ }
+
+
+
+ def SendRequest(self, request, strval = None , username = None):
+ """ Connects to OAR , sends the valid GET requests and uses
+ the appropriate json parsing functions.
+
+ """
+ if request in self.OARrequests_uri_dict :
+ self.raw_json = self.server.GETRequestToOARRestAPI(request, \
+ strval, \
+ username)
+ return self.OARrequests_uri_dict[request]['parse_func'](self)
+ else:
+ logger.error("OARRESTAPI OARGetParse __init__ : ERROR_REQUEST " \
+ %(request))
+