def update_lrouter_port_ips(cluster, lrouter_id, lport_id,
                            ips_to_add, ips_to_remove):
    uri = nsxlib._build_uri_path(LROUTERPORT_RESOURCE, lport_id, lrouter_id)
    try:
        port = nsxlib.do_request(HTTP_GET, uri, cluster=cluster)
        # TODO(salvatore-orlando): Enforce ips_to_add intersection with
        # ips_to_remove is empty
        ip_address_set = set(port['ip_addresses'])
        ip_address_set = ip_address_set - set(ips_to_remove)
        ip_address_set = ip_address_set | set(ips_to_add)
        # Set is not JSON serializable - convert to list
        port['ip_addresses'] = list(ip_address_set)
        nsxlib.do_request(HTTP_PUT, uri, jsonutils.dumps(port),
                          cluster=cluster)
    except exception.NotFound:
        # FIXME(salv-orlando):avoid raising different exception
        data = {'lport_id': lport_id, 'lrouter_id': lrouter_id}
        msg = (_("Router Port %(lport_id)s not found on router "
                 "%(lrouter_id)s") % data)
        LOG.exception(msg)
        raise nsx_exc.NsxPluginException(err_msg=msg)
    except api_exc.NsxApiException as e:
        msg = _("An exception occurred while updating IP addresses on a "
                "router logical port:%s") % e
        LOG.exception(msg)
        raise nsx_exc.NsxPluginException(err_msg=msg)

def delete_networks(cluster, net_id, lswitch_ids):
    for ls_id in lswitch_ids:
        path = "/ws.v1/lswitch/%s" % ls_id
        try:
            nsxlib.do_request(HTTP_DELETE, path, cluster=cluster)
        except exception.NotFound as e:
            LOG.error(_LE("Network not found, Error: %s"), str(e))
            raise exception.NetworkNotFound(net_id=ls_id)

def delete_port(cluster, switch, port):
    uri = "/ws.v1/lswitch/" + switch + "/lport/" + port
    try:
        nsxlib.do_request(HTTP_DELETE, uri, cluster=cluster)
    except exception.NotFound as e:
        LOG.error(_LE("Port or Network not found, Error: %s"), str(e))
        raise exception.PortNotFoundOnNetwork(net_id=switch, port_id=port)
    except api_exc.NsxApiException:
        raise exception.NeutronException()

def delete_router_lport(cluster, lrouter_uuid, lport_uuid):
    """Creates a logical port on the assigned logical router."""
    path = nsxlib._build_uri_path(LROUTERPORT_RESOURCE, lport_uuid,
                                  lrouter_uuid)
    nsxlib.do_request(HTTP_DELETE, path, cluster=cluster)
    LOG.debug("Delete logical router port %(lport_uuid)s on "
              "logical router %(lrouter_uuid)s",
              {'lport_uuid': lport_uuid,
               'lrouter_uuid': lrouter_uuid})

def _lsn_port_host_action(
    cluster, lsn_id, lsn_port_id, host_obj, extra_action, action):
    nsxlib.do_request(HTTP_POST,
                      nsxlib._build_uri_path(LSERVICESNODEPORT_RESOURCE,
                                             parent_resource_id=lsn_id,
                                             resource_id=lsn_port_id,
                                             extra_action=extra_action,
                                             filters={"action": action}),
                      jsonutils.dumps(host_obj),
                      cluster=cluster)

def _lsn_configure_action(
    cluster, lsn_id, action, is_enabled, obj):
    lsn_obj = {"enabled": is_enabled}
    lsn_obj.update(obj)
    nsxlib.do_request(HTTP_PUT,
                      nsxlib._build_uri_path(LSERVICESNODE_RESOURCE,
                                             resource_id=lsn_id,
                                             extra_action=action),
                      jsonutils.dumps(lsn_obj),
                      cluster=cluster)

def lsn_port_host_entries_update(
    cluster, lsn_id, lsn_port_id, conf, hosts_data):
    hosts_obj = {'hosts': hosts_data}
    nsxlib.do_request(HTTP_PUT,
                      nsxlib._build_uri_path(LSERVICESNODEPORT_RESOURCE,
                                             parent_resource_id=lsn_id,
                                             resource_id=lsn_port_id,
                                             extra_action=conf),
                      jsonutils.dumps(hosts_obj),
                      cluster=cluster)

def delete_security_profile(cluster, spid):
    path = "/ws.v1/security-profile/%s" % spid

    try:
        nsxlib.do_request(HTTP_DELETE, path, cluster=cluster)
    except exceptions.NotFound:
        with excutils.save_and_reraise_exception():
            # This is not necessarily an error condition
            LOG.warn(_LW("Unable to find security profile %s on NSX backend"),
                     spid)

def delete_lqueue(cluster, queue_id):
    try:
        nsxlib.do_request(HTTP_DELETE,
                          nsxlib._build_uri_path(LQUEUE_RESOURCE,
                                                 resource_id=queue_id),
                          cluster=cluster)
    except Exception:
        # FIXME(salv-orlando): This should not raise NeutronException
        with excutils.save_and_reraise_exception():
            raise exception.NeutronException()

def update_default_gw_explicit_routing_lrouter(cluster, router_id, next_hop):
    default_route = get_default_route_explicit_routing_lrouter(cluster,
                                                               router_id)
    if next_hop != default_route["next_hop_ip"]:
        new_default_route = {"action": "accept",
                             "next_hop_ip": next_hop,
                             "prefix": "0.0.0.0/0",
                             "protocol": "static"}
        nsxlib.do_request(HTTP_PUT,
                          nsxlib._build_uri_path(
                              LROUTERRIB_RESOURCE,
                              resource_id=default_route['uuid'],
                              parent_resource_id=router_id),
                          jsonutils.dumps(new_default_route),
                          cluster=cluster)

def _lsn_port_configure_action(
    cluster, lsn_id, lsn_port_id, action, is_enabled, obj):
    nsxlib.do_request(HTTP_PUT,
                      nsxlib._build_uri_path(LSERVICESNODE_RESOURCE,
                                             resource_id=lsn_id,
                                             extra_action=action),
                      jsonutils.dumps({"enabled": is_enabled}),
                      cluster=cluster)
    nsxlib.do_request(HTTP_PUT,
                      nsxlib._build_uri_path(LSERVICESNODEPORT_RESOURCE,
                                             parent_resource_id=lsn_id,
                                             resource_id=lsn_port_id,
                                             extra_action=action),
                      jsonutils.dumps(obj),
                      cluster=cluster)

def update_security_group_rules(cluster, spid, rules):
    path = "/ws.v1/security-profile/%s" % spid

    # Allow all dhcp responses in
    rules['logical_port_egress_rules'].append(
        {'ethertype': 'IPv4', 'protocol': constants.PROTO_NUM_UDP,
         'port_range_min': constants.DHCP_RESPONSE_PORT,
         'port_range_max': constants.DHCP_RESPONSE_PORT,
         'ip_prefix': '0.0.0.0/0'})
    # If there are no ingress rules add bunk rule to drop all ingress traffic
    if not rules['logical_port_ingress_rules']:
        rules['logical_port_ingress_rules'].append(
            {'ethertype': 'IPv4', 'ip_prefix': '127.0.0.1/32'})
    try:
        body = mk_body(
            logical_port_ingress_rules=summarize_security_group_rules(rules[
                'logical_port_ingress_rules']),
            logical_port_egress_rules=summarize_security_group_rules(rules[
                'logical_port_egress_rules']))
        rsp = nsxlib.do_request(HTTP_PUT, path, body, cluster=cluster)
    except exceptions.NotFound as e:
        LOG.error(nsxlib.format_exception("Unknown", e, locals()))
        #FIXME(salvatore-orlando): This should not raise NeutronException
        raise exceptions.NeutronException()
    LOG.debug("Updated Security Profile: %s", rsp)
    return rsp

def get_lswitch_by_id(cluster, lswitch_id):
    try:
        lswitch_uri_path = nsxlib._build_uri_path(LSWITCH_RESOURCE, lswitch_id, relations="LogicalSwitchStatus")
        return nsxlib.do_request(HTTP_GET, lswitch_uri_path, cluster=cluster)
    except exception.NotFound:
        # FIXME(salv-orlando): this should not raise a neutron exception
        raise exception.NetworkNotFound(net_id=lswitch_id)

def plug_router_port_attachment(cluster, router_id, port_id,
                                attachment_uuid, nsx_attachment_type,
                                attachment_vlan=None):
    """Attach a router port to the given attachment.

    Current attachment types:
       - PatchAttachment [-> logical switch port uuid]
       - L3GatewayAttachment [-> L3GatewayService uuid]
    For the latter attachment type a VLAN ID can be specified as well.
    """
    uri = nsxlib._build_uri_path(LROUTERPORT_RESOURCE, port_id, router_id,
                                 is_attachment=True)
    attach_obj = {}
    attach_obj["type"] = nsx_attachment_type
    if nsx_attachment_type == "PatchAttachment":
        attach_obj["peer_port_uuid"] = attachment_uuid
    elif nsx_attachment_type == "L3GatewayAttachment":
        attach_obj["l3_gateway_service_uuid"] = attachment_uuid
        if attachment_vlan:
            attach_obj['vlan_id'] = attachment_vlan
    else:
        raise nsx_exc.InvalidAttachmentType(
            attachment_type=nsx_attachment_type)
    return nsxlib.do_request(
        HTTP_PUT, uri, jsonutils.dumps(attach_obj), cluster=cluster)

    def test_update_security_profile_rules_summarize_subset(self):
        sec_prof = secgrouplib.create_security_profile(
            self.fake_cluster, _uuid(), 'pippo', {'name': 'test'})
        ingress_rule = [{'ethertype': 'IPv4'}]
        egress_rules = [
            {'ethertype': 'IPv4', 'protocol': constants.PROTO_NUM_UDP,
             'port_range_min': 1, 'port_range_max': 1,
             'remote_ip_prefix': '1.1.1.1/20'},
            {'ethertype': 'IPv4', 'protocol': constants.PROTO_NUM_UDP,
             'port_range_min': 2, 'port_range_max': 2,
             'profile_uuid': 'xyz'},
            {'ethertype': 'IPv4', 'protocol': constants.PROTO_NUM_UDP}]
        new_rules = {'logical_port_egress_rules': egress_rules,
                     'logical_port_ingress_rules': [ingress_rule]}
        egress_rules_summarized = [
            {'ethertype': 'IPv4', 'protocol': constants.PROTO_NUM_UDP}]
        secgrouplib.update_security_group_rules(
            self.fake_cluster, sec_prof['uuid'], new_rules)
        sec_prof_res = nsxlib.do_request(
            nsxlib.HTTP_GET,
            nsxlib._build_uri_path('security-profile',
                                   resource_id=sec_prof['uuid']),
            cluster=self.fake_cluster)
        self.assertEqual(sec_prof['uuid'], sec_prof_res['uuid'])

        # Check for builtin rules
        self.assertEqual(len(sec_prof_res['logical_port_ingress_rules']), 1)
        self.assertEqual(sec_prof_res['logical_port_egress_rules'],
                         egress_rules_summarized)
        self.assertIn(ingress_rule,
                      sec_prof_res['logical_port_ingress_rules'])

def update_router_lport(cluster, lrouter_uuid, lrouter_port_uuid,
                        tenant_id, neutron_port_id, display_name,
                        admin_status_enabled, ip_addresses):
    """Updates a logical port on the assigned logical router."""
    lport_obj = dict(
        admin_status_enabled=admin_status_enabled,
        display_name=display_name,
        tags=utils.get_tags(os_tid=tenant_id, q_port_id=neutron_port_id),
        ip_addresses=ip_addresses,
        type="LogicalRouterPortConfig"
    )
    # Do not pass null items to NSX
    for key in lport_obj.keys():
        if lport_obj[key] is None:
            del lport_obj[key]
    path = nsxlib._build_uri_path(LROUTERPORT_RESOURCE,
                                  lrouter_port_uuid,
                                  parent_resource_id=lrouter_uuid)
    result = nsxlib.do_request(HTTP_PUT, path,
                               jsonutils.dumps(lport_obj),
                               cluster=cluster)
    LOG.debug("Updated logical port %(lport_uuid)s on "
              "logical router %(lrouter_uuid)s",
              {'lport_uuid': lrouter_port_uuid, 'lrouter_uuid': lrouter_uuid})
    return result

def get_port_by_neutron_tag(cluster, lswitch_uuid, neutron_port_id):
    """Get port by neutron tag.

    Returns the NSX UUID of the logical port with tag q_port_id equal to
    neutron_port_id or None if the port is not Found.
    """
    uri = nsxlib._build_uri_path(LSWITCHPORT_RESOURCE,
                                 parent_resource_id=lswitch_uuid,
                                 fields='uuid',
                                 filters={'tag': neutron_port_id,
                                          'tag_scope': 'q_port_id'})
    LOG.debug("Looking for port with q_port_id tag '%(neutron_port_id)s' "
              "on: '%(lswitch_uuid)s'",
              {'neutron_port_id': neutron_port_id,
               'lswitch_uuid': lswitch_uuid})
    res = nsxlib.do_request(HTTP_GET, uri, cluster=cluster)
    num_results = len(res["results"])
    if num_results >= 1:
        if num_results > 1:
            LOG.warn(_LW("Found '%(num_ports)d' ports with "
                         "q_port_id tag: '%(neutron_port_id)s'. "
                         "Only 1 was expected."),
                     {'num_ports': num_results,
                      'neutron_port_id': neutron_port_id})
        return res["results"][0]

def get_lswitches(cluster, neutron_net_id):

    def lookup_switches_by_tag():
        # Fetch extra logical switches
        lswitch_query_path = nsxlib._build_uri_path(
            LSWITCH_RESOURCE,
            fields="uuid,display_name,tags,lport_count",
            relations="LogicalSwitchStatus",
            filters={'tag': neutron_net_id,
                     'tag_scope': 'quantum_net_id'})
        return nsxlib.get_all_query_pages(lswitch_query_path, cluster)

    lswitch_uri_path = nsxlib._build_uri_path(LSWITCH_RESOURCE, neutron_net_id,
                                              relations="LogicalSwitchStatus")
    results = []
    try:
        ls = nsxlib.do_request(HTTP_GET, lswitch_uri_path, cluster=cluster)
        results.append(ls)
        for tag in ls['tags']:
            if (tag['scope'] == "multi_lswitch" and
                tag['tag'] == "True"):
                results.extend(lookup_switches_by_tag())
    except exception.NotFound:
        # This is legit if the neutron network was created using
        # a post-Havana version of the plugin
        results.extend(lookup_switches_by_tag())
    if results:
        return results
    else:
        raise exception.NetworkNotFound(net_id=neutron_net_id)

def plug_interface(cluster, lswitch_id, lport_id, att_obj):
    return nsxlib.do_request(HTTP_PUT,
                             nsxlib._build_uri_path(LSWITCHPORT_RESOURCE,
                                                    lport_id, lswitch_id,
                                                    is_attachment=True),
                             jsonutils.dumps(att_obj),
                             cluster=cluster)

def create_lport(cluster, lswitch_uuid, tenant_id, neutron_port_id,
                 display_name, device_id, admin_status_enabled,
                 mac_address=None, fixed_ips=None, port_security_enabled=None,
                 security_profiles=None, queue_id=None,
                 mac_learning_enabled=None, allowed_address_pairs=None):
    """Creates a logical port on the assigned logical switch."""
    display_name = utils.check_and_truncate(display_name)
    lport_obj = dict(
        admin_status_enabled=admin_status_enabled,
        display_name=display_name,
        tags=utils.get_tags(os_tid=tenant_id,
                            q_port_id=neutron_port_id,
                            vm_id=utils.device_id_to_vm_id(device_id))
    )

    _configure_extensions(lport_obj, mac_address, fixed_ips,
                          port_security_enabled, security_profiles,
                          queue_id, mac_learning_enabled,
                          allowed_address_pairs)

    path = nsxlib._build_uri_path(LSWITCHPORT_RESOURCE,
                                  parent_resource_id=lswitch_uuid)
    result = nsxlib.do_request(HTTP_POST, path, jsonutils.dumps(lport_obj),
                               cluster=cluster)

    LOG.debug("Created logical port %(result)s on logical switch %(uuid)s",
              {'result': result['uuid'], 'uuid': lswitch_uuid})
    return result