acknowledge the contributions of their colleagues of the SONATA
partner consortium (www.sonata-nfv.eu).
"""
+
+"""
+Distributed Cloud Emulator (dcemulator)
+Networking and monitoring functions
+(c) 2015 by Steven Van Rossem <steven.vanrossem@intec.ugent.be>
+"""
+
import logging
from flask_restful import Resource
from flask import request
import json
logging.basicConfig(level=logging.INFO)
+CORS_HEADER = {'Access-Control-Allow-Origin': '*'}
+# the global net is set from the topology file, and connected via connectDCNetwork function in rest_api_endpoint.py
net = None
:param match: OpenFlow match format of the flow entry
:param bidirectional: boolean value if the link needs to be implemented from src to dst and back
:param cookie: cookie value, identifier of the flow entry to be installed.
+ :param priority: integer indicating the priority of the flow entry
+ :param skip_vlan_tag: boolean to indicate whether a new vlan tag should be created for this chain
+ :param monitor: boolean to indicate whether a new vlan tag should be created for this chain
+ :param monitor_placement: 'tx'=place the monitoring flowrule at the beginning of the chain, 'rx'=place at the end of the chain
:return: message string indicating if the chain action is succesful or not
"""
# call DCNetwork method, not really datacenter specific API for now...
# no check if vnfs are really connected to this datacenter...
try:
- vnf_src_interface = json.loads(request.json).get("vnf_src_interface")
- vnf_dst_interface = json.loads(request.json).get("vnf_dst_interface")
- weight = json.loads(request.json).get("weight")
- match = json.loads(request.json).get("match")
- bidirectional = json.loads(request.json).get("bidirectional")
- cookie = json.loads(request.json).get("cookie")
+ # check if json data is a dict
+ data = request.json
+ if data is None:
+ data = {}
+ elif type(data) is not dict:
+ data = json.loads(request.json)
+
+ vnf_src_interface = data.get("vnf_src_interface")
+ vnf_dst_interface = data.get("vnf_dst_interface")
+ weight = data.get("weight")
+ match = data.get("match")
+ bidirectional = data.get("bidirectional")
+ cookie = data.get("cookie")
+ priority = data.get("priority")
+ skip_vlan_tag = data.get("skip_vlan_tag")
+ monitor = data.get("monitor")
+ monitor_placement = data.get("monitor_placement")
+
c = net.setChain(
vnf_src_name, vnf_dst_name,
vnf_src_interface=vnf_src_interface,
weight=weight,
match=match,
bidirectional=bidirectional,
- cookie=cookie)
+ cookie=cookie,
+ priority=priority,
+ skip_vlan_tag=skip_vlan_tag,
+ monitor=monitor,
+ monitor_placement=monitor_placement)
# return setChain response
- return str(c), 200
+ return str(c), 200, CORS_HEADER
except Exception as ex:
logging.exception("API error.")
- return ex.message, 500
\ No newline at end of file
+ return ex.message, 500, CORS_HEADER