X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=emuvim%2Fapi%2Fzerorpcapi_DCNetwork.py;fp=emuvim%2Fapi%2Fzerorpcapi_DCNetwork.py;h=7402f3df6e4653ac1fac68f243462be2a4ffcf2c;hb=c5a536a1796846be97e5ba6ce9c20d73b6fd0052;hp=0000000000000000000000000000000000000000;hpb=a29c50cffd72de2f5533bb4f294adfe9a0f655d5;p=osm%2Fvim-emu.git

diff --git a/emuvim/api/zerorpcapi_DCNetwork.py b/emuvim/api/zerorpcapi_DCNetwork.py
new file mode 100644
index 0000000..7402f3d
--- /dev/null
+++ b/emuvim/api/zerorpcapi_DCNetwork.py
@@ -0,0 +1,112 @@
+"""
+Distributed Cloud Emulator (dcemulator)
+(c) 2015 by Manuel Peuster <manuel.peuster@upb.de>
+"""
+
+import logging
+import threading
+import zerorpc
+import site
+from subprocess import Popen
+
+logging.basicConfig(level=logging.INFO)
+
+
+class ZeroRpcApiEndpointDCNetwork(object):
+    """
+    Simple API endpoint that offers a zerorpc-based
+    interface. This interface will be used by the
+    default command line client.
+    It can be used as a reference to implement
+    REST interfaces providing the same semantics,
+    like e.g. OpenStack compute API.
+    """
+
+    def __init__(self, listenip, port, DCNetwork=None):
+        if DCNetwork :
+            self.connectDCNetwork(DCNetwork)
+        self.ip = listenip
+        self.port = port
+        logging.debug("Created monitoring API endpoint %s(%s:%d)" % (
+            self.__class__.__name__, self.ip, self.port))
+
+        # start Ryu controller with rest-API
+        python_install_path = site.getsitepackages()[0]
+        ryu_path = python_install_path + '/ryu/app/ofctl_rest.py'
+        ryu_cmd =  'ryu-manager'
+        self.ryu_process = Popen([ryu_cmd,ryu_path])
+
+
+    def connectDCNetwork(self, net):
+        self.net = net
+        logging.info("Connected DCNetwork(%s) to API endpoint %s(%s:%d)" % (
+            net.name, self.__class__.__name__, self.ip, self.port))
+
+    def start(self):
+        thread = threading.Thread(target=self._api_server_thread, args=())
+        thread.daemon = True
+        thread.start()
+        logging.debug("Started API endpoint %s(%s:%d)" % (
+            self.__class__.__name__, self.ip, self.port))
+
+    def _api_server_thread(self):
+        s = zerorpc.Server(DCNetworkApi(self.net))
+        s.bind("tcp://%s:%d" % (self.ip, self.port))
+        s.run()
+
+    def stop(self):
+        # stop ryu controller
+        logging.info("Stop the monitoring API endpoint")
+        self.ryu_process.terminate()
+        #self.ryu_process.kill()
+        return
+
+
+class DCNetworkApi(object):
+    """
+        Just pass through the corresponding request to the
+        selected data center. Do not implement provisioning
+        logic here because will will have multiple API
+        endpoint implementations at the end.
+    """
+
+    def __init__(self, net):
+        self.net = net
+
+    def network_action_start(self, vnf_src_name, vnf_dst_name):
+        # call DCNetwork method, not really datacenter specific API for now...
+        # provided dc name needs to be part of API endpoint
+        # no check if vnfs are really connected to this datacenter...
+        logging.debug("RPC CALL: network chain start")
+        try:
+            c = self.net.setChain(
+                vnf_src_name, vnf_dst_name)
+            return str(c)
+        except Exception as ex:
+            logging.exception("RPC error.")
+            return ex.message
+
+    def network_action_stop(self, vnf_src_name, vnf_dst_name):
+        # call DCNetwork method, not really datacenter specific API for now...
+        # provided dc name needs to be part of API endpoint
+        # no check if vnfs are really connected to this datacenter...
+        logging.debug("RPC CALL: network chain stop")
+        try:
+            c = self.net.setChain(
+                vnf_src_name, vnf_dst_name, cmd='del-flows')
+            return c
+        except Exception as ex:
+            logging.exception("RPC error.")
+            return ex.message
+
+    # get egress(default) or ingress rate of a vnf
+    def monitor_get_rate(self, vnf_name, direction):
+        logging.debug("RPC CALL: get rate")
+        try:
+            c = self.net.monitor_agent.get_rate(vnf_name, direction)
+            return c
+        except Exception as ex:
+            logging.exception("RPC error.")
+            return ex.message
+
+