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import concurrent.futures
import requests, json
from optparse import OptionParser
def run(url, request):
data = json.dumps(request)
r = requests.post(url, data)
return r
def runTasks(flowPerDevice, neighbours, url, servers, doJson, remove):
# We can use a with statement to ensure threads are cleaned up promptly
with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor:
# Start the load operations and mark each future with its URL
request = { "flowsPerDevice" : flowPerDevice, "neighbours" : neighbours, "remove" : remove }
future_to_url = {executor.submit(run, url % (server), request) for server in servers}
for f in concurrent.futures.as_completed(future_to_url):
try:
response = f.result()
server = response.url.split('//')[1].split(':')[0]
if (doJson):
print (json.dumps({ "server" : server, "elapsed" : response.json()['elapsed'] }))
else:
print ("%s -> %sms" % (server, response.json()['elapsed']))
except Exception as exc:
print("Execution failed -> %s" % exc)
if __name__ == "__main__":
parser = OptionParser()
parser.add_option("-u", "--url", dest="url", help="set the url for the request",
default="http://%s:8181/onos/demo/intents/flowTest")
parser.add_option("-f", "--flows", dest="flows", help="Number of flows to install per device",
default=100, type="int")
parser.add_option("-n", "--neighbours", dest="neighs", help="Number of neighbours to communicate to",
default=0, type="int")
parser.add_option("-s", "--servers", dest="servers", help="List of servers to hit",
default=[], action="append")
parser.add_option("-r", "--remove", dest="remove", help="Do not remove flows after installation",
default=True, action="store_false")
parser.add_option("-j", "--json", dest="doJson", help="Print results in json",
default=False, action="store_true")
(options, args) = parser.parse_args()
if (len(options.servers) == 0):
options.servers.append("localhost")
runTasks(options.flows, options.neighs, options.url, options.servers, options.doJson, options.remove)
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