8 __author__ = "Jan Medved"
9 __copyright__ = "Copyright(c) 2014, Cisco Systems, Inc."
10 __license__ = "New-style BSD"
11 __email__ = "jmedved@cisco.com"
14 class InventoryCrawler(object):
19 INVENTORY_URL = 'restconf/%s/opendaylight-inventory:nodes'
20 hdr = {'Accept': 'application/json'}
22 table_stats_unavailable = 0
23 table_stats_fails = []
25 def __init__(self, host, port, plevel, datastore, auth, debug):
26 self.url = 'http://' + host + ":" + port + '/' + self.INVENTORY_URL % datastore
31 def crawl_flows(self, flows):
33 Collects and prints summary information for all flows in a table
35 self.found_flows += len(flows)
37 print ' Flows found: %d\n' % len(flows)
40 s = json.dumps(f, sort_keys=True, indent=4, separators=(',', ': '))
41 # s = s.replace('{\n', '')
42 # s = s.replace('}', '')
46 s = s.replace('\n', '\n ')
48 print " Flow %s:" % f['id']
51 def crawl_table(self, table):
53 Collects and prints summary statistics information about a single table. Depending on the print level
54 (plevel), it also invokes the crawl_flows
57 stats = table['opendaylight-flow-table-statistics:flow-table-statistics']
58 active_flows = int(stats['active-flows'])
61 self.reported_flows += active_flows
63 print ' Table %s:' % table['id']
64 s = json.dumps(stats, sort_keys=True, indent=12, separators=(',', ': '))
65 s = s.replace('{\n', '')
66 s = s.replace('}', '')
70 print " Stats for Table '%s' not available." % table['id']
71 self.table_stats_unavailable += 1
75 flows_in_table = table['flow']
76 self.crawl_flows(flows_in_table)
80 def crawl_node(self, node):
82 Collects and prints summary information about a single node
84 self.table_stats_unavailable = 0
88 print "\nNode '%s':" % (node['id'])
90 print "%s" % (node['id'])
93 tables = node['flow-node-inventory:table']
95 print ' Tables: %d' % len(tables)
100 if self.table_stats_unavailable > 0:
101 self.table_stats_fails.append(node['id'])
105 print ' Data for tables not available.'
107 def crawl_inventory(self):
109 Collects and prints summary information about all openflow nodes in a data store (either operational or config)
113 self.reported_flows = 0
114 self.table_stats_unavailable = 0
115 self.table_stats_fails = []
117 s = requests.Session()
119 r = s.get(self.url, headers=self.hdr, stream=False)
121 r = s.get(self.url, headers=self.hdr, stream=False, auth=('admin', 'admin'))
123 if r.status_code == 200:
125 inv = json.loads(r.content)['nodes']['node']
127 for n in range(len(inv)):
128 if re.search('openflow', inv[n]['id']) is not None:
131 sinv = sorted(sinv, key=lambda k: int(re.findall('\d+', k['id'])[0]))
133 for n in range(len(sinv)):
135 self.crawl_node(sinv[n])
137 print 'Can not crawl %s' % sinv[n]['id']
140 print 'Could not retrieve inventory, response not in JSON format'
142 print 'Could not retrieve inventory, HTTP error %d' % r.status_code
146 def set_plevel(self, plevel):
150 if __name__ == "__main__":
151 parser = argparse.ArgumentParser(description='Restconf test program')
152 parser.add_argument('--host', default='127.0.0.1', help='host where '
153 'the controller is running; default 127.0.0.1')
154 parser.add_argument('--port', default='8181', help='port on '
155 'which odl\'s RESTCONF is listening; default 8181')
156 parser.add_argument('--plevel', type=int, default=0,
157 help='Print Level: 0 - Summary (stats only); 1 - Node names; 2 - Node details;'
159 parser.add_argument('--datastore', choices=['operational', 'config'],
160 default='operational', help='Which data store to crawl; default operational')
161 parser.add_argument('--no-auth', dest='auth', action='store_false', default=False,
162 help="Do not use authenticated access to REST (default)")
163 parser.add_argument('--auth', dest='auth', action='store_true',
164 help="Use authenticated access to REST (username: 'admin', password: 'admin').")
165 parser.add_argument('--debug', dest='debug', action='store_true', default=False,
166 help="List nodes that have not provided proper statistics data")
168 in_args = parser.parse_args()
170 ic = InventoryCrawler(in_args.host, in_args.port, in_args.plevel, in_args.datastore, in_args.auth,
173 print "Crawling '%s'" % ic.url
177 print ' Nodes: %d' % ic.nodes
178 print ' Reported flows: %d' % ic.reported_flows
179 print ' Found flows: %d' % ic.found_flows
182 n_missing = len(ic.table_stats_fails)
184 print '\nMissing table stats (%d nodes):' % n_missing
185 print "%s\n" % ", ".join([x for x in ic.table_stats_fails])