Device - IETF ACTN Driver: (f1d61a8c) · Commits · TFS / controller

src/device/service/drivers/ietf_actn/IetfActnDriver.py

+31 −10

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ from device.service.driver_api._Driver import _Driver, RESOURCE_SERVICES
		from .handlers.EthtServiceHandler import EthtServiceHandler
		from .handlers.OsuTunnelHandler import OsuTunnelHandler
		from .handlers.RestApiClient import RestApiClient
		from .Tools import get_etht_services, get_osu_tunnels, parse_resource_key

		LOGGER = logging.getLogger(__name__)

		@@ -73,10 +74,18 @@ class IetfActnDriver(_Driver):
		if len(resource_keys) == 0: resource_keys = ALL_RESOURCE_KEYS
		for i, resource_key in enumerate(resource_keys):
		chk_string('resource_key[#{:d}]'.format(i), resource_key, allow_empty=False)
		etht_service = self._handler_etht_service.get(etht_service_name)
		osu_tunnel = self._handler_osu_tunnel.get(osu_tunnel_name)
		service_data = {}
		results.extend(('/service/service[...]', service_data))

		if resource_key == RESOURCE_SERVICES:
		get_osu_tunnels(self._handler_osu_tunnel, results)
		get_etht_services(self._handler_etht_service, results)
		else:
		# check if resource key is for a specific OSU tunnel or ETHT service, and get them accordingly
		osu_tunnel_name, etht_service_name = parse_resource_key(resource_key)
		if osu_tunnel_name is not None:
		get_osu_tunnels(self._handler_osu_tunnel, results, osu_tunnel_name=osu_tunnel_name)
		if etht_service_name is not None:
		get_etht_services(self._handler_etht_service, results, etht_service_name=etht_service_name)

		return results

		@metered_subclass_method(METRICS_POOL)
		@@ -87,10 +96,16 @@ class IetfActnDriver(_Driver):
		for resource_key, resource_value in resources:
		LOGGER.info('resource: key({:s}) => value({:s})'.format(str(resource_key), str(resource_value)))
		if isinstance(resource_value, str): resource_value = json.loads(resource_value)
		osu_tunnel_name, etht_service_name = parse_resource_key(resource_key)

		if osu_tunnel_name is not None:
		succeeded = self._handler_osu_tunnel.update(resource_value)
		if succeeded:
		results.extend(succeeded)

		if etht_service_name is not None:
		succeeded = self._handler_etht_service.update(resource_value)
		results.extend(succeeded)

		return results

		@metered_subclass_method(METRICS_POOL)
		@@ -101,10 +116,16 @@ class IetfActnDriver(_Driver):
		for resource_key, resource_value in resources:
		LOGGER.info('resource: key({:s}) => value({:s})'.format(str(resource_key), str(resource_value)))
		if isinstance(resource_value, str): resource_value = json.loads(resource_value)
		succeeded = self._handler_etht_service.delete(etht_service_name)
		if succeeded:
		osu_tunnel_name, etht_service_name = parse_resource_key(resource_key)

		if osu_tunnel_name is not None:
		succeeded = self._handler_osu_tunnel.delete(osu_tunnel_name)
		results.extend(succeeded)

		if etht_service_name is not None:
		succeeded = self._handler_etht_service.delete(etht_service_name)
		results.extend(succeeded)

		return results

		@metered_subclass_method(METRICS_POOL)

src/device/service/drivers/ietf_actn/Tools.py

+35 −162

Original line number	Diff line number	Diff line
		@@ -12,168 +12,41 @@
		# See the License for the specific language governing permissions and
		# limitations under the License.

		import json, logging, operator, requests
		from requests.auth import HTTPBasicAuth
		from typing import Dict, Optional
		from device.service.driver_api._Driver import RESOURCE_ENDPOINTS, RESOURCE_SERVICES
		import logging, re
		from typing import Any, List, Optional, Tuple, Union
		from .handlers.EthtServiceHandler import EthtServiceHandler
		from .handlers.OsuTunnelHandler import OsuTunnelHandler

		LOGGER = logging.getLogger(__name__)

		HTTP_OK_CODES = {
		200, # OK
		201, # Created
		202, # Accepted
		204, # No Content
		}

		def find_key(resource, key):
		return json.loads(resource[1])[key]

		def get_resource(
		base_url : str, resource_key : str,
		auth : Optional[HTTPBasicAuth] = None, timeout : Optional[int] = None
		):
		url = '{:s}/restconf/data/tapi-common:context'.format(base_url)
		result = []
		try:
		response = requests.get(url, timeout=timeout, verify=False, auth=auth)
		except requests.exceptions.Timeout:
		LOGGER.exception('Timeout connecting {:s}'.format(url))
		return result
		except Exception as e: # pylint: disable=broad-except
		LOGGER.exception('Exception retrieving {:s}'.format(resource_key))
		result.append((resource_key, e))
		return result

		try:
		context = json.loads(response.content)
		except Exception as e: # pylint: disable=broad-except
		LOGGER.warning('Unable to decode reply: {:s}'.format(str(response.content)))
		result.append((resource_key, e))
		return result

		if resource_key == RESOURCE_ENDPOINTS:
		if 'tapi-common:context' in context:
		context = context['tapi-common:context']
		elif 'context' in context:
		context = context['context']

		for sip in context['service-interface-point']:
		layer_protocol_name = sip.get('layer-protocol-name', '?')
		supportable_spectrum = sip.get('tapi-photonic-media:media-channel-service-interface-point-spec', {})
		supportable_spectrum = supportable_spectrum.get('mc-pool', {})
		supportable_spectrum = supportable_spectrum.get('supportable-spectrum', [])
		supportable_spectrum = supportable_spectrum[0] if len(supportable_spectrum) == 1 else {}
		grid_type = supportable_spectrum.get('frequency-constraint', {}).get('grid-type')
		granularity = supportable_spectrum.get('frequency-constraint', {}).get('adjustment-granularity')
		direction = sip.get('direction', '?')

		endpoint_type = [layer_protocol_name, grid_type, granularity, direction]
		str_endpoint_type = ':'.join(filter(lambda i: operator.is_not(i, None), endpoint_type))
		sip_uuid = sip['uuid']

		sip_names = sip.get('name', [])
		sip_name = next(iter([
		sip_name['value']
		for sip_name in sip_names
		if sip_name['value-name'] == 'local-name'
		]), sip_uuid)

		endpoint_url = '/endpoints/endpoint[{:s}]'.format(sip_uuid)
		endpoint_data = {'uuid': sip_uuid, 'name': sip_name, 'type': str_endpoint_type}
		result.append((endpoint_url, endpoint_data))

		elif resource_key == RESOURCE_SERVICES:
		if 'tapi-common:context' in context:
		context = context['tapi-common:context']
		elif 'context' in context:
		context = context['context']

		if 'tapi-connectivity:connectivity-context' in context:
		context = context['tapi-connectivity:connectivity-context']
		elif 'connectivity-context' in context:
		context = context['connectivity-context']

		for conn_svc in context['connectivity-service']:
		service_uuid = conn_svc['uuid']
		constraints = conn_svc.get('connectivity-constraint', {})
		total_req_cap = constraints.get('requested-capacity', {}).get('total-size', {})

		service_url = '/services/service[{:s}]'.format(service_uuid)
		service_data = {
		'uuid': service_uuid,
		'direction': constraints.get('connectivity-direction', 'UNIDIRECTIONAL'),
		'capacity_unit': total_req_cap.get('unit', '<UNDEFINED>'),
		'capacity_value': total_req_cap.get('value', '<UNDEFINED>'),
		}

		for i,endpoint in enumerate(conn_svc.get('end-point', [])):
		layer_protocol_name = endpoint.get('layer-protocol-name')
		if layer_protocol_name is not None:
		service_data['layer_protocol_name'] = layer_protocol_name

		layer_protocol_qualifier = endpoint.get('layer-protocol-qualifier')
		if layer_protocol_qualifier is not None:
		service_data['layer_protocol_qualifier'] = layer_protocol_qualifier

		sip = endpoint['service-interface-point']['service-interface-point-uuid']
		service_data['input_sip' if i == 0 else 'output_sip'] = sip

		result.append((service_url, service_data))

		return result

		def create_resource(
		base_url : str, resource_key : str, resource_value : Dict,
		auth : Optional[HTTPBasicAuth] = None, timeout : Optional[int] = None
		):

		uuid = find_key(resource, 'uuid')
		input_sip = find_key(resource, 'input_sip_uuid')
		output_sip = find_key(resource, 'output_sip_uuid')
		capacity_value = find_key(resource, 'capacity_value')
		capacity_unit = find_key(resource, 'capacity_unit')
		layer_protocol_name = find_key(resource, 'layer_protocol_name')
		layer_protocol_qualifier = find_key(resource, 'layer_protocol_qualifier')
		direction = find_key(resource, 'direction')


		url = '{:s}/restconf/data/tapi-common:context/tapi-connectivity:connectivity-context'.format(base_url)
		headers = {'content-type': 'application/json'}
		data = compose_...
		results = []
		try:
		LOGGER.info('Connectivity service {:s}: {:s}'.format(str(uuid), str(data)))
		response = requests.post(
		url=url, data=json.dumps(data), timeout=timeout, headers=headers, verify=False, auth=auth)
		LOGGER.info('TAPI response: {:s}'.format(str(response)))
		except Exception as e: # pylint: disable=broad-except
		LOGGER.exception('Exception creating ConnectivityService(uuid={:s}, data={:s})'.format(str(uuid), str(data)))
		results.append(e)
		else:
		if response.status_code not in HTTP_OK_CODES:
		msg = 'Could not create ConnectivityService(uuid={:s}, data={:s}). status_code={:s} reply={:s}'
		LOGGER.error(msg.format(str(uuid), str(data), str(response.status_code), str(response)))
		results.append(response.status_code in HTTP_OK_CODES)
		return results

		def delete_resource(
		base_url : str, resource_key : str, resource_value : Dict,
		auth : Optional[HTTPBasicAuth] = None, timeout : Optional[int] = None
		):
		uuid = find_key(resource_value, 'uuid')

		url = '{:s}/tapi-common:context/tapi-connectivity:connectivity-context/connectivity-service={:s}'
		url = url.format(base_url, uuid)
		results = []
		try:
		response = requests.delete(url=url, timeout=timeout, verify=False, auth=auth)
		except Exception as e: # pylint: disable=broad-except
		LOGGER.exception('Exception deleting ConnectivityService(uuid={:s})'.format(str(uuid)))
		results.append(e)
		else:
		if response.status_code not in HTTP_OK_CODES:
		msg = 'Could not delete ConnectivityService(uuid={:s}). status_code={:s} reply={:s}'
		LOGGER.error(msg.format(str(uuid), str(response.status_code), str(response)))
		results.append(response.status_code in HTTP_OK_CODES)
		return results
		RE_OSU_TUNNEL = re.compile(r'^\/osu\_tunnels\/osu\_tunnel\[([^\]]+)\]$')
		RE_ETHT_SERVICE = re.compile(r'^\/etht\_services\/etht\_service\[([^\]]+)\]$')

		def parse_resource_key(resource_key : str) -> Tuple[Optional[str], Optional[str]]:
		re_match_osu_tunnel = RE_OSU_TUNNEL.match(resource_key)
		osu_tunnel_name = None if re_match_osu_tunnel is None else re_match_osu_tunnel.group(1)

		re_match_etht_service = RE_ETHT_SERVICE.match(resource_key)
		etht_service_name = None if re_match_etht_service is None else re_match_etht_service.group(1)

		return osu_tunnel_name, etht_service_name

		def get_osu_tunnels(
		handler_osu_tunnel : OsuTunnelHandler, results : List[Tuple[str, Union[Any, None, Exception]]],
		osu_tunnel_name : Optional[str] = None
		) -> None:
		osu_tunnels = handler_osu_tunnel.get(osu_tunnel_name=osu_tunnel_name)
		for osu_tunnel in osu_tunnels:
		osu_tunnel_name = osu_tunnel['name']
		resource_key = '/osu_tunnels/osu_tunnel[{:s}]'.format(osu_tunnel_name)
		results.extend((resource_key, osu_tunnel))

		def get_etht_services(
		handler_etht_service : EthtServiceHandler, results : List[Tuple[str, Union[Any, None, Exception]]],
		etht_service_name : Optional[str] = None
		) -> None:
		etht_services = handler_etht_service.get(etht_service_name=etht_service_name)
		for etht_service in etht_services:
		etht_service_name = etht_service['name']
		resource_key = '/etht_services/etht_service[{:s}]'.format(etht_service_name)
		results.extend((resource_key, etht_service))

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