from flask_restful import Resource
from flask import request
import json
+import networkx
-logging.basicConfig(level=logging.INFO)
+logging.basicConfig()
+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
"""
global net
- def put(self, vnf_src_name, vnf_dst_name):
+ def put(self):
logging.debug("REST CALL: network chain add")
command = 'add-flow'
- return self._NetworkAction(vnf_src_name, vnf_dst_name, command=command)
+ return self._NetworkAction(command=command)
- def delete(self, vnf_src_name, vnf_dst_name):
+ def delete(self):
logging.debug("REST CALL: network chain remove")
command = 'del-flows'
- return self._NetworkAction(vnf_src_name, vnf_dst_name, command=command)
+ return self._NetworkAction(command=command)
- def _NetworkAction(self, vnf_src_name, vnf_dst_name, command=None):
+ def _NetworkAction(self, command=None):
# call DCNetwork method, not really datacenter specific API for now...
# no check if vnfs are really connected to this datacenter...
try:
- # check if json data is a dict
+ # check json payload
+ logging.debug("json: {}".format(request.json))
+ logging.debug("args: {}".format(request.args))
+
data = request.json
+ if data is None:
+ data = request.args
if data is None:
data = {}
- elif type(data) is not dict:
- data = json.loads(request.json)
+ vnf_src_name = data.get("vnf_src_name")
+ vnf_dst_name = data.get("vnf_dst_name")
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
+
+
+class DrawD3jsgraph(Resource):
+
+ global net
+
+ def get(self):
+ nodes = list()
+ nodes2 = list()
+ links = list()
+ # add all DCs
+ node_attr = networkx.get_node_attributes(net.DCNetwork_graph, 'type')
+ for node_name in net.DCNetwork_graph.nodes():
+ nodes2.append(node_name)
+ node_index = nodes2.index(node_name)
+ type = node_attr[node_name]
+ node_dict = {"name":node_name,"group":type}
+ nodes.append(node_dict)
+
+ # add links between other DCs
+ for node1_name in net.DCNetwork_graph.nodes():
+ node1_index = nodes2.index(node1_name)
+ for node2_name in net.DCNetwork_graph.neighbors(node1_name):
+ node2_index = nodes2.index(node2_name)
+ edge_dict = {"source": node1_index, "target": node2_index, "value": 10}
+ links.append(edge_dict)
+
+ json = {"nodes":nodes, "links":links}
+ return json, 200, CORS_HEADER