Fixing bug in querying OAR.
[sfa.git] / sfa / senslab / OARrestapi.py
index b2705c7..a59fe0f 100644 (file)
-# import modules used here -- sys is a very standard one
-import sys
-import httplib
+#import sys
+from httplib import HTTPConnection, HTTPException
 import json
-import datetime
-from time import gmtime, strftime 
-from sfa.senslab.parsing import *
-from sfa.senslab.SenslabImportUsers import *
-import urllib
-import urllib2
+#import datetime
+#from time import gmtime, strftime 
+import os.path
+import sys
+#import urllib
+#import urllib2
 from sfa.util.config import Config
-from sfa.util.plxrn import PlXrn
-from sfa.util.xrn import hrn_to_urn, get_authority,Xrn,get_leaf
+#from sfa.util.xrn import hrn_to_urn, get_authority, Xrn, get_leaf
 
-#OARIP='10.127.255.254'
-OARIP='192.168.0.109'
+from sfa.util.sfalogging import logger
 
 
-OARrequests_list = ["GET_version", "GET_timezone", "GET_jobs", "GET_jobs_table", "GET_jobs_details",
-"GET_resources_full", "GET_resources"]
+OAR_REQUEST_POST_URI_DICT = {'POST_job':{'uri': '/oarapi/jobs.json'},
+                            'DELETE_jobs_id':{'uri':'/oarapi/jobs/id.json'},
+                            }
 
-OARrequests_uri_list = ['/oarapi/version.json','/oarapi/timezone.json', '/oarapi/jobs.json',
-'/oarapi/jobs/details.json', '/oarapi/resources/full.json', '/oarapi/resources.json'] 
+POST_FORMAT = {'json' : {'content':"application/json", 'object':json},}
 
-OARrequests_get_uri_dict = { 'GET_version': '/oarapi/version.json',
-                       'GET_timezone':'/oarapi/timezone.json' ,
-                       'GET_jobs': '/oarapi/jobs.json',
-                        'GET_jobs_id': '/oarapi/jobs/id.json',
-                        'GET_jobs_id_resources': '/oarapi/jobs/id/resources.json',
-                        'GET_resources_id': '/oarapi/resources/id.json',
-                       'GET_jobs_table': '/oarapi/jobs/table.json',
-                       'GET_jobs_details': '/oarapi/jobs/details.json',
-                       'GET_resources_full': '/oarapi/resources/full.json',
-                       'GET_resources':'/oarapi/resources.json',
-                        
-                        
-}
+#OARpostdatareqfields = {'resource' :"/nodes=", 'command':"sleep", \
+                        #'workdir':"/home/", 'walltime':""}
 
-OARrequest_post_uri_dict = { 
-                            'POST_job':{'uri': '/oarapi/jobs.json'},
-                            'DELETE_jobs_id':{'uri':'/oarapi/jobs/id.json'},}
+                       
 
-POSTformat = {  #'yaml': {'content':"text/yaml", 'object':yaml}
-'json' : {'content':"application/json",'object':json}, 
-#'http': {'content':"applicaton/x-www-form-urlencoded",'object': html},
-}
 
-OARpostdatareqfields = {'resource' :"/nodes=", 'command':"sleep", 'workdir':"/home/", 'walltime':""}
 
 class OARrestapi:
-    def __init__(self):
-        self.oarserver= {}
-        self.oarserver['ip'] = OARIP
-        self.oarserver['port'] = 80
+    def __init__(self, config_file =  '/etc/sfa/oar_config.py'):
+        self.oarserver = {}
+       
+        
         self.oarserver['uri'] = None
         self.oarserver['postformat'] = 'json'
         
-        self.jobstates = ["Terminated", "Running", "Error", "Waiting", "Launching","Hold"]
-             
+        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'] = OARrequests_get_uri_dict[request] 
+    def GETRequestToOARRestAPI(self, request, strval=None ,next_page=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))
-          print>>sys.stderr, "\r\n \r\n   GETRequestToOARRestAPI replace :  self.oarserver['uri'] %s",  self.oarserver['uri']
+            self.oarserver['uri'] = self.oarserver['uri'].\
+                                            replace("id",str(strval))
+            
+        if next_page:
+            self.oarserver['uri'] += next_page
+            
         if username:
             headers['X-REMOTE_IDENT'] = username 
-        try :  
-            #headers = {'X-REMOTE_IDENT':'avakian',\
-            #'content-length':'0'}
-            headers['content-length'] = '0' #seems that it does not work if we don't add this
             
-            #conn = httplib.HTTPConnection(self.oarserver['ip'],self.oarserver['port'])
-            #conn.putheader(headers)
-            #conn.endheaders()
-            #conn.putrequest("GET",self.oarserver['uri'] ) 
-            conn = httplib.HTTPConnection(self.oarserver['ip'],self.oarserver['port'])
-           
-            conn.request("GET",self.oarserver['uri'],data , headers )
+        print>>sys.stderr, " \r\n \t    OARrestapi \tGETRequestToOARRestAPI %s" %( self.oarserver['uri'])
+        logger.debug("OARrestapi: \t  GETRequestToOARRestAPI  \
+                        self.oarserver['uri'] %s strval %s" \
+                        %(self.oarserver['uri'], strval))
+        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:
-            raise ServerError("GET_OAR_SRVR : Could not reach OARserver")
+        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 = json.loads(resp)
-            
-            if strval:
-                print>>sys.stderr, " \r\n \r\n \t GETRequestToOARRestAPI strval %s js %s" %(strval,js)
-            return js
+            js_dict = json.loads(resp)
+            #print "\r\n \t\t\t js_dict keys" , js_dict.keys(), " \r\n", js_dict
+            return js_dict
         
-        except ValueError:
-            raise ServerError("Failed to parse Server Response:" + js)
+        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):
-        #first check that all params for are OK 
+        """ Used to post a job on OAR , along with data associated 
+        with the job.
         
-        print>>sys.stderr, " \r\n \r\n POSTRequestToOARRestAPI username",username
-        try:
-            self.oarserver['uri'] = OARrequest_post_uri_dict[request]['uri']
-            print>>sys.stderr, " \r\n \r\n POSTRequestToOARRestAPI rq %s datadict %s  " % ( self.oarserver['uri'] ,datadict)
+        """
 
-        except:
-            print>>sys.stderr, " \r\n \r\n POSTRequestToOARRestAPI request not in OARrequest_post_uri_dict"
-            return
+        #first check that all params for are OK 
         try:
-            print>>sys.stderr, " \r\n \r\n POSTRequestToOARRestAPI  %s " %( 'strval' in datadict)
-            if datadict and 'strval' in datadict:
-                self.oarserver['uri'] = self.oarserver['uri'].replace("id",str(datadict['strval']))
-                print>>sys.stderr, " \r\n \r\n POSTRequestToOARRestAPI REPLACE OK %s"%(self.oarserver['uri'])
-                del datadict['strval']
-                print>>sys.stderr, " \r\n \r\n \t POSTRequestToOARRestAPI datadict %s  rq %s" %(datadict, self.oarserver['uri'] )
-        except:
-            print>>sys.stderr, " \r\n \r\n POSTRequestToOARRestAPI ERRRRRORRRRRR "
+            self.oarserver['uri'] = OAR_REQUEST_POST_URI_DICT[request]['uri']
+
+        except KeyError:
+            logger.log_exc("OARrestapi \tPOSTRequestToOARRestAPI request not \
+                             valid")
             return
-        #if format in POSTformat:
-            #if format is 'json':
+        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':POSTformat['json']['content'],\
+        headers = {'X-REMOTE_IDENT':username, \
+                'content-type': POST_FORMAT['json']['content'], \
                 'content-length':str(len(data))}     
         try :
-            #self.oarserver['postformat'] = POSTformat[format]
-            
-            print>>sys.stderr, "\r\n POSTRequestToOARRestAPI   headers %s uri %s" %(headers,self.oarserver['uri'])
-            conn = httplib.HTTPConnection(self.oarserver['ip'],self.oarserver['port'])
-            conn.request("POST",self.oarserver['uri'],data,headers )
-            resp = ( conn.getresponse()).read()
+
+            conn = HTTPConnection(self.oarserver['ip'], \
+                                        self.oarserver['port'])
+            conn.request("POST", self.oarserver['uri'], data, headers)
+            resp = (conn.getresponse()).read()
             conn.close()
-            
-            #conn = httplib.HTTPConnection(self.oarserver['ip'],self.oarserver['port'])
-            #conn.putrequest("POST",self.oarserver['uri'] )
-            #self.oarserver['postformat'] = POSTformat[format]
-            #conn.putheader('HTTP X-REMOTE_IDENT', 'avakian')
-            #conn.putheader('content-type', self.oarserver['postformat']['content'])
-            #conn.putheader('content-length', str(len(data))) 
-            #conn.endheaders()
-            #conn.send(data)
-            #resp = ( conn.getresponse()).read()
-            #conn.close()
-
-        except:
-            print>>sys.stderr, "\r\n POSTRequestToOARRestAPI  ERROR: data %s \r\n \t\n \t\t headers %s uri %s" %(data,headers,self.oarserver['uri'])
+        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)
-            print>>sys.stderr, "\r\n POSTRequestToOARRestAPI : ", answer
+            logger.debug("POSTRequestToOARRestAPI : answer %s" %(answer))
             return answer
 
-        except ValueError:
-            raise ServerError("Failed to parse Server Response:" + 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 createjobrequest(self, nodelist):
-        #datadict = dict(zip(self.OARpostdatareqfields.keys(), self.OARpostdatareqfields.values())
-        #for k in datadict:
-                #if k is 'resource':
-                    #for node in nodelist:
-                    #datadict[k] += str(nodelist)
-
-                       
-class OARGETParser:
 
-    #Insert a new node into the dictnode dictionary
-    def AddNodeId(self,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 AddOarNodeId(tuplelist, value):
+    """ Adds Oar internal node id to the nodes attributes """
     
-    def AddNodeNetworkAddr(self,tuplelist,value):
-        tuplelist.append(('hostname',str(value)))
-                    
-            
-    def AddNodeSite(self,tuplelist,value):
-        tuplelist.append(('site_login_base',str(value)))       
-            
-    def AddNodeRadio(self,tuplelist,value):
-        tuplelist.append(('radio',str(value))) 
-    
-    
-    def AddMobility(self,tuplelist,value):
-        if value :
-            tuplelist.append(('mobile',int(value)))    
-        return 0
+    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) ]  
     
-    def AddPosX(self,tuplelist,value):
-        tuplelist.append(('posx',value))       
+    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)
     
-    def AddPosY(self,tuplelist,value):
-        tuplelist.append(('posy',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]))
     
-    def AddBootState(self,tuplelist,value):
-        tuplelist.append(('boot_state',str(value)))    
+                       
+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'] )
+            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'] )
+            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']
-        #readable_time = strftime("%Y-%m-%d %H:%M:%S", gmtime(float(api_timestamp))) 
-
-        return api_timestamp
+        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): 
-       
-        print >>sys.stderr,"ParseJobsDetails %s " %(self.raw_json)
+    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 =['assigned_network_address', 'assigned_resources','Job_Id', 'scheduledStart','state','job_user', 'startTime','walltime','message']
-        job_resources_full = ['Job_Id', 'scheduledStart', 'resubmit_job_id', 'owner', 'submissionTime', 'message', 'id', 'jobType', 'queue', 'launchingDirectory', 'exit_code', 'state', 'array_index', 'events', 'assigned_network_address', 'cpuset_name', 'initial_request', 'job_user', 'assigned_resources', 'array_id', 'job_id', 'resources_uri', 'dependencies', 'api_timestamp', 'startTime', 'reservation', 'properties', 'types', 'walltime', 'name', 'uri', 'wanted_resources', 'project', 'command']
-   
+        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
-     
-        values=[]
+        #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))
+            return dict(zip(job_resources, values))
             
         except KeyError:
-                print>>sys.stderr, " \r\n \t ParseJobsIds Key Error"
+            logger.log_exc("ParseJobsIds KeyError ")
             
-        
-        
-        
+
     def ParseJobsIdResources(self):
-        print>>sys.stderr, "ParseJobsIdResources"
+        """ 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) :
-        print>>sys.stderr, " \r\n  \t\t\t ParseResources__________________________ " 
+        """ 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 ) :
-        print>>sys.stderr, " \r\n \t\t\t  ParseResourcesFull_____________________________ "
+    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.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
+        
 
-    resources_fulljson_dict= {
-        'resource_id' : AddNodeId,
-        'network_address' : AddNodeNetworkAddr,
-        'site': AddNodeSite, 
-        'radio': AddNodeRadio,
-        'mobile': AddMobility,
-        'posx': AddPosX,
-        'posy': AddPosY,
-        'state':AddBootState,
-        }
-      
-            
-    #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.
-    def ParseNodes(self):  
+   
+    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
-        #print >>sys.stderr, " \r\n \r\n \t\t OARrestapi.py ParseNodes self.raw_json %s" %(self.raw_json)
+        keys = self.resources_fulljson_dict.keys()
+        keys.sort()
+
         for dictline in self.raw_json:
-            #print >>sys.stderr, " \r\n \r\n \t\t OARrestapi.py ParseNodes dictline %s hey" %(dictline)
-            for k in dictline:
-                if k in self.resources_fulljson_dict:
-                    # dictionary is empty and/or a new node has to be inserted 
-                    if node_id is None :
-                        node_id = self.resources_fulljson_dict[k](self,self.node_dictlist, dictline[k])        
-                    else:
-                        ret = self.resources_fulljson_dict[k](self,self.node_dictlist[node_id], dictline[k])
-                    
-                        #If last property has been inserted in the property tuple list, reset node_id 
-                        if ret == 0:
-                            #Turn the property tuple list (=dict value) into a dictionary
-                            self.node_dictlist[node_id] = dict(self.node_dictlist[node_id])
-                            node_id = None
+            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
                     
-                else:
-                    pass
-                
-    def hostname_to_hrn(self, root_auth, login_base, hostname):
-        return PlXrn(auth=root_auth,hostname=login_base+'_'+hostname).get_hrn()
-    #Retourne liste de dictionnaires contenant attributs des sites     
+    def slab_hostname_to_hrn(self, root_auth,  hostname):             
+        return root_auth + '.'+ hostname 
+
+                             
+
     def ParseSites(self):
-        nodes_per_site = {}
+        """ Returns a list of dictionnaries containing the sites' attributes."""
         
-        # Create a list of nodes per  site_id
-        for node_id in self.node_dictlist.keys():
+        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_login_base'] not in nodes_per_site.keys():
-                nodes_per_site[node['site_login_base']] = []
-                nodes_per_site[node['site_login_base']].append(node['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_login_base']]:
-                    nodes_per_site[node['site_login_base']].append(node['node_id'])
-        #Create a site dictionary with 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.keys():
+                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.hostname_to_hrn(self.interface_hrn, node['site_login_base'],node['hostname'])})
-            #node['hrn'] = self.hostname_to_hrn(self.interface_hrn, node['site_login_base'],node['hostname'])
+            #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_id is 1:
-                #print>>sys.stderr, " \r\n \r\n \t \t\t\t OARESTAPI Parse Sites self.node_dictlist %s " %(self.node_dictlist)
-            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),]
-                self.site_dict[node['site_login_base']] = dict(self.site_dict[node['site_login_base']])
+
+            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_resources_full': {'uri':'/oarapi/resources/full.json','parse_func': ParseResourcesFull},
-        'GET_resources':{'uri':'/oarapi/resources.json' ,'parse_func': ParseResources},
-        'DELETE_jobs_id':{'uri':'/oarapi/jobs/id.json' ,'parse_func': ParseDeleteJobs}
+        '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 __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.site_dict = {}
-        self.SendRequest("GET_version")
+    def FindNextPage(self):
+        if "links" in self.raw_json:
+            for page in self.raw_json['links']:
+                if page['rel'] == 'next':
+                    self.concatenate = True
+                    print>>sys.stderr, " \r\n \t\t FindNextPage  self.concatenate %s" %(self.concatenate )
+                    return True, "?"+page['href'].split("?")[1]
+        if self.concatenate :
+            self.end = True
+            print>>sys.stderr, " \r\n \t\t END FindNextPage  self.concatenate %s" %(self.concatenate )
+        return False, None
+            
+    def ConcatenateJsonPages (self, saved_json_list):
+        #reset items list
+
+        tmp = {}
+        tmp['items'] = []
+        print >>sys.stderr, " \r\n ConcatenateJsonPages saved_json_list len ", len(saved_json_list)
+        for page in saved_json_list:
+            #for node in page['items']:
+                #self.raw_json['items'].append(node)
+            print>>sys.stderr, " \r\n ConcatenateJsonPages  page['items']len ", len(page['items'])
+            tmp['items'].extend(page['items'])
+        #print>>sys.stderr, " \r\n ConcatenateJsonPages len ", len(self.raw_json['items'])
+        #print>>sys.stderr, " \r\n ConcatenateJsonPages  self.raw_json['items']", self.raw_json['items']        
+        return tmp
+                        
+    def SendRequest(self, request, strval = None , username = None):
+        """ Connects to OAR , sends the valid GET requests and uses
+        the appropriate json parsing functions.
+        
+        """
+        self.raw_json = None
+        next_page = True
+        next_offset = None
+        save_json = None
+        self.concatenate = False
+        self.end = False
+        a = 0
+        save_json = []
+        self.raw_json_list = []
+        if request in self.OARrequests_uri_dict :
+            while next_page:
+                self.raw_json = self.server.GETRequestToOARRestAPI(request, \
+                                                                strval, \
+                                                                next_offset, \
+                                                                username)
+                
+                next_page , next_offset = self.FindNextPage()
+                if self.concatenate:
+                    #self.raw_json_list.append(self.raw_json)
+                    save_json.append(self.raw_json)
+            if self.concatenate and self.end :
+                #self.raw_json = self.ConcatenateJsonPages(self.raw_json_list) 
+                self.raw_json = self.ConcatenateJsonPages(save_json)
 
-    def SendRequest(self,request, strval = None , username = None):
-        if request in OARrequests_get_uri_dict:
-            self.raw_json = self.server.GETRequestToOARRestAPI(request,strval,username) 
-            #print>>sys.stderr, "\r\n OARGetParse __init__ : request %s result %s "%(request,self.raw_json)
             return self.OARrequests_uri_dict[request]['parse_func'](self)
         else:
-            print>>sys.stderr, "\r\n OARGetParse __init__ : ERROR_REQUEST "    ,request
+            logger.error("OARRESTAPI OARGetParse __init__ : ERROR_REQUEST " \
+                                                                 %(request))
             
-
-  
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