Fixing bug in querying OAR.
[sfa.git] / sfa / senslab / OARrestapi.py
index 6dba335..a59fe0f 100644 (file)
@@ -3,18 +3,16 @@ from httplib import HTTPConnection, HTTPException
 import json
 #import datetime
 #from time import gmtime, strftime 
-
+import os.path
+import sys
 #import urllib
 #import urllib2
 from sfa.util.config import Config
-from sfa.planetlab.plxrn import PlXrn
 #from sfa.util.xrn import hrn_to_urn, get_authority, Xrn, get_leaf
 
 from sfa.util.sfalogging import logger
 
 
-OARIP = '194.199.16.161'
-
 OAR_REQUEST_POST_URI_DICT = {'POST_job':{'uri': '/oarapi/jobs.json'},
                             'DELETE_jobs_id':{'uri':'/oarapi/jobs/id.json'},
                             }
@@ -29,14 +27,26 @@ POST_FORMAT = {'json' : {'content':"application/json", 'object':json},}
 
 
 class OARrestapi:
-    def __init__(self):
+    def __init__(self, config_file =  '/etc/sfa/oar_config.py'):
         self.oarserver = {}
-        self.oarserver['ip'] = OARIP
-        self.oarserver['port'] = 8800
+       
+        
         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',\
@@ -45,20 +55,29 @@ class OARrestapi:
         self.parser = OARGETParser(self)
        
             
-    def GETRequestToOARRestAPI(self, request, strval=None , username = None ): 
+    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))
-            logger.debug("OARrestapi: \t  GETRequestToOARRestAPI  \
-                            self.oarserver['uri'] %s strval %s" \
-                            %(self.oarserver['uri'], strval))
+            
+        if next_page:
+            self.oarserver['uri'] += next_page
+            
         if username:
             headers['X-REMOTE_IDENT'] = username 
+            
+        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' 
@@ -74,6 +93,7 @@ class OARrestapi:
             #raise ServerError("GET_OAR_SRVR : Could not reach OARserver")
         try:
             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, error:
@@ -96,14 +116,10 @@ class OARrestapi:
             logger.log_exc("OARrestapi \tPOSTRequestToOARRestAPI request not \
                              valid")
             return
-        #try:
         if datadict and 'strval' in datadict:
             self.oarserver['uri'] = self.oarserver['uri'].replace("id", \
                                                 str(datadict['strval']))
             del datadict['strval']
-        #except:
-            #logger.log_exc("OARrestapi.py POSTRequestToOARRestAPI Error")
-            return
 
         data = json.dumps(datadict)
         headers = {'X-REMOTE_IDENT':username, \
@@ -157,8 +173,10 @@ def AddNodeRadio(tuplelist, value):
 
 
 def AddMobility(tuplelist, value): 
-    if value :
-        tuplelist.append(('mobile', int(value)))       
+    if value is 0:
+        tuplelist.append(('mobile', 'False'))  
+    else :
+        tuplelist.append(('mobile', 'True'))
 
 def AddPosX(tuplelist, value):
     tuplelist.append(('posx', value))  
@@ -261,7 +279,7 @@ class OARGETParser:
         # 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))
+        #logger.debug("ParseJobsDetails %s " %(self.raw_json))
         return self.raw_json
         
 
@@ -282,7 +300,7 @@ class OARGETParser:
 
 
         job_info = self.raw_json
-        logger.debug("OARESTAPI ParseJobsIds %s" %(self.raw_json))
+        #logger.debug("OARESTAPI ParseJobsIds %s" %(self.raw_json))
         values = []
         try:
             for k in job_resources:
@@ -304,13 +322,13 @@ class OARGETParser:
         for resource in self.raw_json['items']:
             job_resources.append(resource['id'])
             
-        logger.debug("OARESTAPI \tParseJobsIdResources %s" %(self.raw_json))
+        #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 " )
+        #logger.debug("OARESTAPI \tParseResources " )
         #resources are listed inside the 'items' list from the json
         self.raw_json = self.raw_json['items']
         self.ParseNodes()
@@ -324,17 +342,26 @@ class OARGETParser:
         job = {}
         #Parse resources info
         for json_element in  self.raw_json['items']:
-            job['t_from'] = json_element['scheduled_start']
-            #Get resources id list for the job
-            job['resource_ids'] = \
-                [ node_dict['id'] for node_dict in json_element['resources'] ]
+            #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['t_until'] = json_element['scheduled_start'] + \
-                                                    json_element['walltime']
+            
+            
             job['user'] = json_element['owner']
-            logger.debug("OARRestapi \tParseReservedNodes job %s" %(job))  
+            #logger.debug("OARRestapi \tParseReservedNodes job %s" %(job))  
             reservation_list.append(job)
             #reset dict
             job = {}
@@ -421,10 +448,9 @@ class OARGETParser:
             self.node_dictlist[node_id] = dict(self.node_dictlist[node_id])
             node_id = None
                     
-                
-    def hostname_to_hrn(self, root_auth, login_base, hostname):
-        return PlXrn(auth = root_auth, \
-                             hostname = login_base + '_' + hostname).get_hrn()
+    def slab_hostname_to_hrn(self, root_auth,  hostname):             
+        return root_auth + '.'+ hostname 
+
                              
 
     def ParseSites(self):
@@ -432,10 +458,10 @@ class OARGETParser:
         
         nodes_per_site = {}
         config = Config()
-        logger.debug(" OARrestapi.py \tParseSites  self.node_dictlist %s"\
-                                                        %(self.node_dictlist))
+        #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.keys():
+        for node_id in self.node_dictlist:
             node  = self.node_dictlist[node_id]
             
             if node['site'] not in nodes_per_site:
@@ -445,14 +471,14 @@ class OARGETParser:
                 if node['node_id'] not in nodes_per_site[node['site']]:
                     nodes_per_site[node['site']].append(node['node_id'])
                         
-        #Create a site dictionary with key is site_login_base (name of the site)
+        #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.keys():
+        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'],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['site'] not in self.site_dict:
@@ -502,7 +528,10 @@ class OARGETParser:
         '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},
@@ -519,16 +548,62 @@ class OARGETParser:
         }
 
 
-
+    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 :
-            self.raw_json = self.server.GETRequestToOARRestAPI(request, \
+            while next_page:
+                self.raw_json = self.server.GETRequestToOARRestAPI(request, \
                                                                 strval, \
-                                                                username) 
+                                                                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)
+
             return self.OARrequests_uri_dict[request]['parse_func'](self)
         else:
             logger.error("OARRESTAPI OARGetParse __init__ : ERROR_REQUEST " \