def schedule_host(tenant_id, instance_id, user_id=None):
    """Gets the host name from the Quantum service"""
    project_id = tenant_id

    instance_data_dict = {
        'novatenant': {
            'instance_id': instance_id,
            'instance_desc': {
                'user_id': user_id,
                'project_id': project_id,
            },
        },
    }

    request_url = "/novatenants/" + project_id + "/schedule_host"
    client = Client(HOST, PORT, USE_SSL, format='json', tenant=TENANT_ID,
                    version=VERSION, uri_prefix=URI_PREFIX_CSCO)
    data = client.do_request('PUT', request_url, body=instance_data_dict)

    hostname = data["host_list"]["host_1"]
    if not hostname:
        print("Scheduler was unable to locate a host"
              " for this request. Is the appropriate"
              " service running?")

    print("Quantum service returned host: %s" % hostname)

    def _schedule(self, context, topic, request_spec, **kwargs):
        """Gets the host name from the Quantum service"""
        LOG.debug("Cisco Quantum Port-aware Scheduler is scheduling...")
        instance_id = request_spec['instance_properties']['uuid']
        user_id = request_spec['instance_properties']['user_id']
        project_id = request_spec['instance_properties']['project_id']

        instance_data_dict = {'novatenant':
                              {'instance_id': instance_id,
                               'instance_desc':
                               {'user_id': user_id,
                                'project_id': project_id}}}

        client = Client(HOST, PORT, USE_SSL, format='json', version=VERSION,
                        uri_prefix=URI_PREFIX_CSCO, tenant=TENANT_ID,
                        logger=LOG)
        request_url = "/novatenants/" + project_id + ACTION
        data = client.do_request('PUT', request_url, body=instance_data_dict)

        hostname = data["host_list"]["host_1"]
        if not hostname:
            raise excp.NoValidHost(_("Scheduler was unable to locate a host"
                                     " for this request. Is the appropriate"
                                     " service running?"))

        LOG.debug(_("Quantum service returned host: %s") % hostname)
        return hostname

def list_extensions(*args):
    """Invoking the action to get the supported extensions"""
    request_url = "/extensions"
    client = Client(HOST, PORT, USE_SSL, format='json',
                    version=VERSION, uri_prefix=URI_PREFIX_EXT, tenant="dummy")
    data = client.do_request('GET', request_url)
    print("Obtained supported extensions from Quantum: %s" % data)

def create_multiport(tenant_id, net_id_list, *args):
    """Creates ports on a single host"""
    net_list = net_id_list.split(",")
    ports_info = {"multiport": {"status": "ACTIVE", "net_id_list": net_list, "ports_desc": {"key": "value"}}}

    request_url = "/multiport"
    client = Client(HOST, PORT, USE_SSL, format="json", tenant=tenant_id, version=VERSION, uri_prefix=URI_PREFIX_CSCO)
    data = client.do_request("POST", request_url, body=ports_info)

    print ("Created ports: %s" % data)

def create_multiport(tenant_id, networks_list, *args):
    """Creates ports on a single host"""
    ports_info = {'multiport':
                  {'status': constants.PORT_STATUS_ACTIVE,
                   'net_id_list': networks_list,
                   'ports_desc': {'key': 'value'}}}
    request_url = "/multiport"
    client = Client(HOST, PORT, USE_SSL, format='json', tenant=tenant_id,
                    action_prefix=servconts.ACTION_PREFIX_CSCO)
    data = client.do_request('POST', request_url, body=ports_info)
    return data

def create_multiport(tenant_id, networks_list, *args):
    """Creates ports on a single host"""
    ports_info = {
        "multiport": {
            "status": constants.PORT_STATUS_ACTIVE,
            "net_id_list": networks_list,
            "ports_desc": {"key": "value"},
        }
    }
    request_url = "/multiport"
    client = Client(HOST, PORT, USE_SSL, format="json", tenant=tenant_id, action_prefix=servconts.ACTION_PREFIX_CSCO)
    data = client.do_request("POST", request_url, body=ports_info)
    return data

def create_multiport(tenant_id, net_id_list, *args):
    """Creates ports on a single host"""
    net_list = net_id_list.split(",")
    ports_info = {'multiport':
                  {'status': 'ACTIVE',
                   'net_id_list': net_list,
                   'ports_desc': {'key': 'value'}}}

    request_url = "/multiport"
    client = Client(HOST, PORT, USE_SSL, format='json', tenant=tenant_id,
                    version=VERSION, uri_prefix=URI_PREFIX_CSCO)
    data = client.do_request('POST', request_url, body=ports_info)

    print("Created ports: %s" % data)

    def setUp(self):
        """ Setups a test environment for the API client """
        HOST = '127.0.0.1'
        PORT = 9696
        USE_SSL = False

        self.client = Client(HOST, PORT, USE_SSL, TENANT_1, 'json', ServerStub)

 def test_connection_retry_failure(self):
     self.client = Client(port=55555, tenant=TENANT_1, retries=1,
                          retry_interval=0)
     try:
         self.client.list_networks()
     except exceptions.ConnectionFailed as exc:
         self.assertTrue('Maximum attempts reached' in str(exc))
     else:
         self.fail('ConnectionFailed not raised')

    def __init__(self):
        # We have to send a dummy tenant name here since the client
        # needs some tenant name, but the tenant name will not be used
        # since the extensions URL does not require it
        LOG.debug("Initializing Cisco Quantum Port-aware Scheduler...")
        client = Client(HOST, PORT, USE_SSL, format='json', version=VERSION,
                        uri_prefix="", tenant="dummy", logger=LOG)
        request_url = "/extensions"
        data = client.do_request('GET', request_url)
        LOG.debug("Obtained supported extensions from Quantum: %s" % data)
        for ext in data['extensions']:
            name = ext['name']
            if name == CSCO_EXT_NAME:
                LOG.debug("Quantum plugin supports required \"%s\" extension"
                          "for the scheduler." % name)
                return

        LOG.error("Quantum plugin does not support required \"%s\" extension"
                  " for the scheduler. Scheduler will quit." % CSCO_EXT_NAME)
        raise excp.ServiceUnavailable()

    def _update_configurations(self, instance, network, mapping, action):
        """Gets the device name and the profile name from Quantum"""
        LOG.debug("Cisco Quantum VIF driver performing: %s" % (action))
        instance_id = instance['uuid']
        user_id = instance['user_id']
        project_id = instance['project_id']
        vif_id = mapping['vif_uuid']

        instance_data_dict = \
                {'novatenant': \
                 {'instance_id': instance_id,
                  'instance_desc': \
                  {'user_id': user_id,
                   'project_id': project_id,
                   'vif_id': vif_id}}}

        client = Client(HOST, PORT, USE_SSL, format='json', version=VERSION,
                        uri_prefix=URI_PREFIX_CSCO, tenant=TENANT_ID,
                        logger=LOG)
        request_url = "/novatenants/" + project_id + action
        data = client.do_request('PUT', request_url, body=instance_data_dict)

        if action == ASSOCIATE_ACTION:
            device = data['vif_desc']['device']
            portprofile = data['vif_desc']['portprofile']
            LOG.debug(_("Quantum provided the device: %s") % device)
            LOG.debug(_("Quantum provided the portprofile: %s") % portprofile)
            mac_id = mapping['mac'].replace(':', '')

            result = {
                'id': mac_id,
                'mac_address': mapping['mac'],
                'device_name': device,
                'profile_name': portprofile,
            }

            return result
        else:
            return data

def connect_vm(tenant_id, vm_image_id, service_instance_id, *args):
    """
    Starts a VMs and is connected to southbound network
    """
    l2db.initialize()
    client = Client(HOST, PORT, USE_SSL, format='json', tenant=tenant_id)
    print (_("Connecting %(vm_image_id)s to Service "
             "%(service_instance_id)s") % locals())
    service_logic = servlogcs.ServicesLogistics()
    service_nets = sdb.get_service_bindings(service_instance_id)
    client.create_port(service_nets.mngnet_id)
    client.create_port(service_nets.nbnet_id)
    sb_port_id = client.create_port(service_nets.sbnet_id)
    LOG.debug(_("Operation 'create_port' executed."))
    new_port_id = sb_port_id[servconts.PORT][servconts.ID]
    try:
        create_vm_args = []
        create_vm_args.append(servconts.CREATE_VM_CMD)
        create_vm_args.append(vm_image_id)
        print _("Creating VM with image: %s") % (vm_image_id)
        process = utils.subprocess_popen(create_vm_args,
                                         stdout=subprocess.PIPE)
        result = process.stdout.readlines()
        tokens = re.search("i-[a-f0-9]*", str(result[1]))
        vm_name = tokens.group(0)
        print _("Image: %s instantiated successfully") % (vm_name)
    except Exception as exc:
        print exc

    service_logic.image_status(vm_name)
    print _("Completed")
    print _("Attaching Ports To VM Service interfaces")
    south_net = service_nets.sbnet_id
    attachment = client.show_port_attachment(south_net, new_port_id)
    attachment = attachment[servconts.ATTACHMENT][servconts.ID][:36]
    LOG.debug(_("Plugging virtual interface: %(attachment)s of VM "
                "%(vm_name)s into port: %(new_port_id)s on network: "
                "%(sbnet_id)s"), {'attachment': attachment,
                                  'vm_name': vm_name,
                                  'new_port_id': new_port_id,
                                  'sbnet_id': service_nets.sbnet_id})
    attach_data = {servconts.ATTACHMENT: {servconts.ID: '%s' % attachment}}
    client.attach_resource(service_nets.sbnet_id, new_port_id, attach_data)
    print _("Connect VM Ended")

def insert_inpath_service(tenant_id, service_image_id,
                          management_net_name, northbound_net_name,
                          southbound_net_name, *args):
    """Inserting a network service between two networks"""
    print ("Creating Network for Services and Servers")
    service_logic = servlogcs.ServicesLogistics()
    net_list = {}
    multiport_net_list = []
    networks_name_list = [management_net_name, northbound_net_name,
                          southbound_net_name]
    client = Client(HOST, PORT, USE_SSL, format='json', tenant=tenant_id)
    for net in networks_name_list:
        data = {servconts.NETWORK: {servconts.NAME: net}}
        net_list[net] = client.create_network(data)
        net_list[net][servconts.PORTS] = []
        LOG.debug("Network %s Created with ID: %s " % (
            net, net_list[net][servconts.NETWORK][servconts.ID]))
    print "Completed"
    print ("Creating Ports on Services and Server Networks")
    LOG.debug("Operation 'create_port' executed.")
    if not service_logic.verify_plugin(const.UCS_PLUGIN):
        for net in networks_name_list:
            net_list[net][servconts.PORTS].append
            (client.create_port
            (net_list[net][servconts.NETWORK][servconts.ID]))
        LOG.debug("Operation 'create_port' executed.")
    else:
        for net in networks_name_list:
            nets = net_list[net][servconts.NETWORK][servconts.ID]
            multiport_net_list.append(nets)
        data = create_multiport(tenant_id, multiport_net_list)
        net_idx = 0
        for net in networks_name_list:
            port_id = data[servconts.PORTS][net_idx][servconts.ID]
            net_list[net][servconts.PORTS].append(port_id)
            LOG.debug("Port UUID: %s on network: %s" %
                      (data[servconts.PORTS][net_idx][servconts.ID], net))
            net_idx = net_idx + 1
    print "Completed"
    try:
        create_vm_args = []
        create_vm_args.append(servconts.CREATE_VM_CMD)
        create_vm_args.append(service_image_id)
        print ("Creating VM with image: %s" % (service_image_id))
        process = utils.subprocess_popen(create_vm_args,
                                         stdout=subprocess.PIPE)
        result = process.stdout.readlines()
        tokens = re.search("i-[a-f0-9]*", str(result[1]))
        service_vm_name = tokens.group(0)
        print ("Image: %s instantiated successfully" % (service_vm_name))

    except Exception as exc:
        print exc

    service_logic.image_status(service_vm_name)
    print "Completed"
    print "Attaching Ports To VM Service interfaces"
    try:
        idx = 0
        for net in networks_name_list:
            network_id = net_list[net][servconts.NETWORK][servconts.ID]
            port_id = net_list[net][servconts.PORTS][idx]
            attachment = client.show_port_attachment(network_id, port_id)
            attachment = attachment[servconts.ATTACHMENT][servconts.ID][:36]
            LOG.debug(("Plugging virtual interface: %s of VM %s"
                       "into port: %s on network: %s") %
                      (attachment, service_vm_name, port_id, net))
            attach_data = {servconts.ATTACHMENT: {servconts.ID: '%s' %
                                                  attachment}}
            client.attach_resource(network_id, port_id, attach_data)
    except Exception as exc:
        print exc
    print "Completed"
    try:
        LOG.debug("Registering Service in DB")
        l2db.initialize()
        for uuid_net in db.network_id(networks_name_list[0]):
            mngnet_id = str(uuid_net.uuid)
        for uuid_net in db.network_id(networks_name_list[1]):
            nbnet_id = str(uuid_net.uuid)
        for uuid_net in db.network_id(networks_name_list[2]):
            sbnet_id = str(uuid_net.uuid)
        sdb.add_services_binding(service_vm_name, mngnet_id, nbnet_id,
                                 sbnet_id)
    except Exception as exc:
        print exc

def delete_service(tenant_id, service_instance_id, *args):
    """
    Removes a service and all the network configuration
    """
    l2db.initialize()
    print ("Terminating Service VM")
    service_logic = servlogcs.ServicesLogistics()
    vms_list = []
    vms_list.append(servconts.DELETE_VM_CMD)
    vms_list.append(service_instance_id)

    if not service_logic.image_exist(service_instance_id):
        print ("Service VM does not exist")
        sys.exit()

    result = subprocess.call(vms_list)
    service_logic.image_shutdown_verification(service_instance_id)

    client = Client(HOST, PORT, USE_SSL, format='json', tenant=tenant_id)
    service_nets = sdb.get_service_bindings(service_instance_id)
    print ("Terminating Ports and Networks")
    network_name = db.network_get(service_nets.mngnet_id)
    port_id_net = db.port_list(service_nets.mngnet_id)
    for ports_uuid in port_id_net:
        client.delete_port(service_nets.mngnet_id, ports_uuid.uuid)
    client.delete_network(service_nets.mngnet_id)
    network_name = db.network_get(service_nets.nbnet_id)
    port_id_net = db.port_list(service_nets.nbnet_id)
    for ports_uuid in port_id_net:
        client.delete_port(service_nets.nbnet_id, ports_uuid.uuid)
    client.delete_network(service_nets.nbnet_id)
    network_name = db.network_get(service_nets.sbnet_id)
    port_id_net = db.port_list(service_nets.sbnet_id)
    for ports_uuid in port_id_net:
        client.delete_port(service_nets.sbnet_id, ports_uuid.uuid)
    client.delete_network(service_nets.sbnet_id)
    service_list = sdb.remove_services_binding(service_instance_id)
    print ("Configuration Removed Successfully")

class APITest(unittest.TestCase):

    def setUp(self):
        """ Setups a test environment for the API client """
        HOST = '127.0.0.1'
        PORT = 9696
        USE_SSL = False

        self.client = Client(HOST, PORT, USE_SSL, TENANT_1, 'json', ServerStub)

    def _assert_sanity(self, call, status, method, path, data=[], params={}):
        """ Perform common assertions to test the sanity of client requests """

        # Handle an error case first
        if status != 200:
            (self.client.host, self.client.port) = ("10.0.0.1", status)
            self.assertRaises(Exception, call, *data, **params)
            return

        # Make the call, then get the data from the root node and assert it
        data = call(*data, **params)['data']

        self.assertEqual(data['method'], method)
        self.assertEqual(data['format'], params['format'])
        self.assertEqual(data['tenant'], params['tenant'])
        self.assertEqual(data['path'], path)

        return data

    def _test_list_networks(self, tenant=TENANT_1, format='json', status=200):
        LOG.debug("_test_list_networks - tenant:%s "
                  "- format:%s - START", format, tenant)

        self._assert_sanity(self.client.list_networks,
                            status,
                            "GET",
                            "networks",
                            data=[],
                            params={'tenant': tenant, 'format': format})

        LOG.debug("_test_list_networks - tenant:%s - format:%s - END",
                  format, tenant)

    def _test_list_networks_details(self,
                                    tenant=TENANT_1, format='json',
                                    status=200):
        LOG.debug("_test_list_networks_details - tenant:%s "
                  "- format:%s - START", format, tenant)

        self._assert_sanity(self.client.list_networks_details,
                            status,
                            "GET",
                            "networks/detail",
                            data=[],
                            params={'tenant': tenant, 'format': format})

        LOG.debug("_test_list_networks_details - tenant:%s "
                  "- format:%s - END", format, tenant)

    def _test_show_network(self,
                           tenant=TENANT_1, format='json', status=200):
        LOG.debug("_test_show_network - tenant:%s "
                  "- format:%s - START", format, tenant)

        self._assert_sanity(self.client.show_network,
                            status,
                            "GET",
                            "networks/001",
                            data=["001"],
                            params={'tenant': tenant, 'format': format})

        LOG.debug("_test_show_network - tenant:%s "
                  "- format:%s - END", format, tenant)

    def _test_show_network_details(self,
                                   tenant=TENANT_1, format='json', status=200):
        LOG.debug("_test_show_network_details - tenant:%s "
                  "- format:%s - START", format, tenant)

        self._assert_sanity(self.client.show_network_details,
                            status,
                            "GET",
                            "networks/001/detail",
                            data=["001"],
                            params={'tenant': tenant, 'format': format})

        LOG.debug("_test_show_network_details - tenant:%s "
                  "- format:%s - END", format, tenant)

    def _test_create_network(self, tenant=TENANT_1, format='json', status=200):
        LOG.debug("_test_create_network - tenant:%s "
                  "- format:%s - START", format, tenant)

        self._assert_sanity(self.client.create_network,
                            status,
                            "POST",
                            "networks",
                            data=[{'network': {'net-name': 'testNetwork'}}],
                            params={'tenant': tenant, 'format': format})

#.........这里部分代码省略.........