Initial commit moving openolt adapter from voltha-go to the new repo.
This version works with ponsim rather than openolt, this is temporary.
It is currently being fixed to work with openolt.
Change-Id: I34a800c98f050140b367e2d474b7aa8b79f34b9a
Signed-off-by: William Kurkian <wkurkian@cisco.com>
diff --git a/python/adapters/extensions/omci/database/alarm_db_ext.py b/python/adapters/extensions/omci/database/alarm_db_ext.py
new file mode 100644
index 0000000..2af6923
--- /dev/null
+++ b/python/adapters/extensions/omci/database/alarm_db_ext.py
@@ -0,0 +1,698 @@
+#
+# Copyright 2018 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from mib_db_api import *
+from voltha.protos.omci_alarm_db_pb2 import AlarmInstanceData, AlarmClassData, \
+ AlarmDeviceData, AlarmAttributeData
+
+
+class AlarmDbExternal(MibDbApi):
+ """
+ A persistent external OpenOMCI Alarm Database
+ """
+ CURRENT_VERSION = 1 # VOLTHA v1.3.0 release
+ ALARM_BITMAP_KEY = 'alarm_bit_map'
+
+ _TIME_FORMAT = '%Y%m%d-%H%M%S.%f'
+
+ # Paths from root proxy
+ ALARM_PATH = '/omci_alarms'
+ DEVICE_PATH = ALARM_PATH + '/{}' # .format(device_id)
+
+ # Classes, Instances, and Attributes as lists from root proxy
+ CLASSES_PATH = DEVICE_PATH + '/classes' # .format(device_id)
+ INSTANCES_PATH = DEVICE_PATH + '/classes/{}/instances' # .format(device_id, class_id)
+ ATTRIBUTES_PATH = DEVICE_PATH + '/classes/{}/instances/{}/attributes' # .format(device_id, class_id, instance_id)
+
+ # Single Class, Instance, and Attribute as objects from device proxy
+ CLASS_PATH = '/classes/{}' # .format(class_id)
+ INSTANCE_PATH = '/classes/{}/instances/{}' # .format(class_id, instance_id)
+ ATTRIBUTE_PATH = '/classes/{}/instances/{}/attributes/{}' # .format(class_id, instance_id
+ # attribute_name)
+
+ def __init__(self, omci_agent):
+ """
+ Class initializer
+ :param omci_agent: (OpenOMCIAgent) OpenOMCI Agent
+ """
+ super(AlarmDbExternal, self).__init__(omci_agent)
+ self._core = omci_agent.core
+
+ def start(self):
+ """
+ Start up/restore the database
+ """
+ self.log.debug('start')
+
+ if not self._started:
+ super(AlarmDbExternal, self).start()
+ root_proxy = self._core.get_proxy('/')
+
+ try:
+ base = root_proxy.get(AlarmDbExternal.ALARM_PATH)
+ self.log.info('db-exists', num_devices=len(base))
+
+ except Exception as e:
+ self.log.exception('start-failure', e=e)
+ raise
+
+ def stop(self):
+ """
+ Start up the database
+ """
+ self.log.debug('stop')
+
+ if self._started:
+ super(AlarmDbExternal, self).stop()
+ # TODO: Delete this method if nothing else is done except calling the base class
+
+ def _time_to_string(self, time):
+ return time.strftime(AlarmDbExternal._TIME_FORMAT) if time is not None else ''
+
+ def _string_to_time(self, time):
+ return datetime.strptime(time, AlarmDbExternal._TIME_FORMAT) if len(time) else None
+
+ def _attribute_to_string(self, value):
+ """
+ Convert an ME's attribute value to string representation
+
+ :param value: (long) Alarm bitmaps are always a Long
+ :return: (str) String representation of the value
+ """
+ return str(value)
+
+ def _string_to_attribute(self, str_value):
+ """
+ Convert an ME's attribute value-string to its Scapy decode equivalent
+
+ :param device_id: (str) ONU Device ID
+ :param class_id: (int) Class ID
+ :param attr_name: (str) Attribute Name (see EntityClasses)
+ :param str_value: (str) Attribute Value in string form
+
+ :return: (various) String representation of the value
+ :raises KeyError: Device, Class ID, or Attribute does not exist
+ """
+ # Alarms are always a bitmap which is a long
+ return long(str_value) if len(str_value) else 0L
+
+ def add(self, device_id, overwrite=False):
+ """
+ Add a new ONU to database
+
+ :param device_id: (str) Device ID of ONU to add
+ :param overwrite: (bool) Overwrite existing entry if found.
+
+ :raises KeyError: If device already exists and 'overwrite' is False
+ """
+ self.log.debug('add-device', device_id=device_id, overwrite=overwrite)
+
+ now = datetime.utcnow()
+ found = False
+ root_proxy = self._core.get_proxy('/')
+
+ data = AlarmDeviceData(device_id=device_id,
+ created=self._time_to_string(now),
+ version=AlarmDbExternal.CURRENT_VERSION,
+ last_alarm_sequence=0)
+ try:
+ dev_proxy = self._device_proxy(device_id)
+ found = True
+
+ if not overwrite:
+ # Device already exists
+ raise KeyError('Device with ID {} already exists in Alarm database'.
+ format(device_id))
+
+ # Overwrite with new data
+ data = dev_proxy.get('/', depth=0)
+ self._root_proxy.update(AlarmDbExternal.DEVICE_PATH.format(device_id), data)
+ self._modified = now
+
+ except KeyError:
+ if found:
+ raise
+ # Did not exist, add it now
+ root_proxy.add(AlarmDbExternal.ALARM_PATH, data)
+ self._created = now
+ self._modified = now
+
+ def remove(self, device_id):
+ """
+ Remove an ONU from the database
+
+ :param device_id: (str) Device ID of ONU to remove from database
+ """
+ self.log.debug('remove-device', device_id=device_id)
+
+ if not self._started:
+ raise DatabaseStateError('The Database is not currently active')
+
+ if not isinstance(device_id, basestring):
+ raise TypeError('Device ID should be an string')
+
+ try:
+ # self._root_proxy.get(AlarmDbExternal.DEVICE_PATH.format(device_id))
+ self._root_proxy.remove(AlarmDbExternal.DEVICE_PATH.format(device_id))
+ self._modified = datetime.utcnow()
+
+ except KeyError:
+ # Did not exists, which is not a failure
+ pass
+
+ except Exception as e:
+ self.log.exception('remove-exception', device_id=device_id, e=e)
+ raise
+
+ @property
+ def _root_proxy(self):
+ return self._core.get_proxy('/')
+
+ def _device_proxy(self, device_id):
+ """
+ Return a config proxy to the OMCI Alarm_DB leaf for a given device
+
+ :param device_id: (str) ONU Device ID
+ :return: (ConfigProxy) Configuration proxy rooted at OMCI Alarm DB
+ :raises KeyError: If the device does not exist in the database
+ """
+ if not isinstance(device_id, basestring):
+ raise TypeError('Device ID should be an string')
+
+ if not self._started:
+ raise DatabaseStateError('The Database is not currently active')
+
+ return self._core.get_proxy(AlarmDbExternal.DEVICE_PATH.format(device_id))
+
+ def _class_proxy(self, device_id, class_id, create=False):
+ """
+ Get a config proxy to a specific managed entity class
+ :param device_id: (str) ONU Device ID
+ :param class_id: (int) Class ID
+ :param create: (bool) If true, create default instance (and class)
+ :return: (ConfigProxy) Class configuration proxy
+
+ :raises DatabaseStateError: If database is not started
+ :raises KeyError: If Instance does not exist and 'create' is False
+ """
+ if not self._started:
+ raise DatabaseStateError('The Database is not currently active')
+
+ if not 0 <= class_id <= 0xFFFF:
+ raise ValueError('class-id is 0..0xFFFF')
+
+ fmt = AlarmDbExternal.DEVICE_PATH + AlarmDbExternal.CLASS_PATH
+ path = fmt.format(device_id, class_id)
+
+ try:
+ return self._core.get_proxy(path)
+
+ except KeyError:
+ if not create:
+ self.log.error('class-proxy-does-not-exist', device_id=device_id,
+ class_id=class_id)
+ raise
+
+ # Create class
+ data = AlarmClassData(class_id=class_id)
+ root_path = AlarmDbExternal.CLASSES_PATH.format(device_id)
+ self._root_proxy.add(root_path, data)
+
+ return self._core.get_proxy(path)
+
+ def _instance_proxy(self, device_id, class_id, instance_id, create=False):
+ """
+ Get a config proxy to a specific managed entity instance
+ :param device_id: (str) ONU Device ID
+ :param class_id: (int) Class ID
+ :param instance_id: (int) Instance ID
+ :param create: (bool) If true, create default instance (and class)
+ :return: (ConfigProxy) Instance configuration proxy
+
+ :raises DatabaseStateError: If database is not started
+ :raises KeyError: If Instance does not exist and 'create' is False
+ """
+ if not self._started:
+ raise DatabaseStateError('The Database is not currently active')
+
+ if not isinstance(device_id, basestring):
+ raise TypeError('Device ID is a string')
+
+ if not 0 <= class_id <= 0xFFFF:
+ raise ValueError('class-id is 0..0xFFFF')
+
+ if not 0 <= instance_id <= 0xFFFF:
+ raise ValueError('instance-id is 0..0xFFFF')
+
+ fmt = AlarmDbExternal.DEVICE_PATH + AlarmDbExternal.INSTANCE_PATH
+ path = fmt.format(device_id, class_id, instance_id)
+
+ try:
+ return self._core.get_proxy(path)
+
+ except KeyError:
+ if not create:
+ self.log.error('instance-proxy-does-not-exist', device_id=device_id,
+ class_id=class_id, instance_id=instance_id)
+ raise
+
+ # Create instance, first make sure class exists
+ self._class_proxy(device_id, class_id, create=True)
+
+ now = self._time_to_string(datetime.utcnow())
+ data = AlarmInstanceData(instance_id=instance_id, created=now, modified=now)
+ root_path = AlarmDbExternal.INSTANCES_PATH.format(device_id, class_id)
+ self._root_proxy.add(root_path, data)
+
+ return self._core.get_proxy(path)
+
+ def save_last_sync_time(self, device_id, value):
+ """
+ Save the Last Sync time to the database in an easy location to access
+
+ :param device_id: (str) ONU Device ID
+ :param value: (DateTime) Value to save
+ """
+ self.log.debug('save-last-sync-time', device_id=device_id, time=str(value))
+
+ try:
+ if not isinstance(value, datetime):
+ raise TypeError('Expected a datetime object, got {}'.
+ format(type(datetime)))
+
+ device_proxy = self._device_proxy(device_id)
+ data = device_proxy.get(depth=0)
+
+ now = datetime.utcnow()
+ data.last_sync_time = self._time_to_string(value)
+
+ # Update
+ self._root_proxy.update(AlarmDbExternal.DEVICE_PATH.format(device_id),
+ data)
+ self._modified = now
+ self.log.debug('save-sync-time-complete', device_id=device_id)
+
+ except Exception as e:
+ self.log.exception('save-last-sync-exception', device_id=device_id, e=e)
+ raise
+
+ def get_last_sync_time(self, device_id):
+ """
+ Get the Last Sync Time saved to the database for a device
+
+ :param device_id: (str) ONU Device ID
+ :return: (int) The Value or None if not found
+ """
+ self.log.debug('get-last-sync-time', device_id=device_id)
+
+ try:
+ device_proxy = self._device_proxy(device_id)
+ data = device_proxy.get(depth=0)
+ return self._string_to_time(data.last_sync_time)
+
+ except KeyError:
+ return None # OMCI MIB_DB entry has not yet been created
+
+ except Exception as e:
+ self.log.exception('get-last-sync-time-exception', e=e)
+ raise
+
+ def save_alarm_last_sync(self, device_id, value):
+ """
+ Save the Last Alarm Sequence value to the database in an easy location to access
+
+ :param device_id: (str) ONU Device ID
+ :param value: (int) Value to save
+ """
+ self.log.debug('save-last-sync', device_id=device_id, seq=str(value))
+
+ try:
+ if not isinstance(value, int):
+ raise TypeError('Expected a integer, got {}'.format(type(value)))
+
+ device_proxy = self._device_proxy(device_id)
+ data = device_proxy.get(depth=0)
+
+ now = datetime.utcnow()
+ data.last_alarm_sequence = int(value)
+
+ # Update
+ self._root_proxy.update(AlarmDbExternal.DEVICE_PATH.format(device_id),
+ data)
+ self._modified = now
+ self.log.debug('save-sequence-complete', device_id=device_id)
+
+ except Exception as e:
+ self.log.exception('save-last-sync-exception', device_id=device_id, e=e)
+ raise
+
+ def get_alarm_last_sync(self, device_id):
+ """
+ Get the Last Sync Time saved to the database for a device
+
+ :param device_id: (str) ONU Device ID
+ :return: (int) The Value or None if not found
+ """
+ self.log.debug('get-last-sync', device_id=device_id)
+
+ try:
+ device_proxy = self._device_proxy(device_id)
+ data = device_proxy.get(depth=0)
+ return int(data.last_alarm_sequence)
+
+ except KeyError:
+ return None # OMCI ALARM_DB entry has not yet been created
+
+ except Exception as e:
+ self.log.exception('get-last-alarm-exception', e=e)
+ raise
+
+ def _add_new_class(self, device_id, class_id, instance_id, attributes):
+ """
+ Create an entry for a new class in the external database
+
+ :param device_id: (str) ONU Device ID
+ :param class_id: (int) ME Class ID
+ :param instance_id: (int) ME Entity ID
+ :param attributes: (dict) Attribute dictionary
+
+ :returns: (bool) True if the value was saved to the database. False if the
+ value was identical to the current instance
+ """
+ self.log.debug('add', device_id=device_id, class_id=class_id,
+ instance_id=instance_id, attributes=attributes)
+
+ now = self._time_to_string(datetime.utcnow())
+ attrs = [AlarmAttributeData(name=k,
+ value=self._attribute_to_string(v)) for k, v in attributes.items()]
+ class_data = AlarmClassData(class_id=class_id,
+ instances=[AlarmInstanceData(instance_id=instance_id,
+ created=now,
+ modified=now,
+ attributes=attrs)])
+
+ self._root_proxy.add(AlarmDbExternal.CLASSES_PATH.format(device_id), class_data)
+ self.log.debug('set-complete', device_id=device_id, class_id=class_id,
+ entity_id=instance_id, attributes=attributes)
+ return True
+
+ def _add_new_instance(self, device_id, class_id, instance_id, attributes):
+ """
+ Create an entry for a instance of an existing class in the external database
+
+ :param device_id: (str) ONU Device ID
+ :param class_id: (int) ME Class ID
+ :param instance_id: (int) ME Entity ID
+ :param attributes: (dict) Attribute dictionary
+
+ :returns: (bool) True if the value was saved to the database. False if the
+ value was identical to the current instance
+ """
+ self.log.debug('add', device_id=device_id, class_id=class_id,
+ instance_id=instance_id, attributes=attributes)
+
+ now = self._time_to_string(datetime.utcnow())
+ attrs = [AlarmAttributeData(name=k,
+ value=self._attribute_to_string(v)) for k, v in attributes.items()]
+ instance_data = AlarmInstanceData(instance_id=instance_id,
+ created=now,
+ modified=now,
+ attributes=attrs)
+
+ self._root_proxy.add(AlarmDbExternal.INSTANCES_PATH.format(device_id, class_id),
+ instance_data)
+
+ self.log.debug('set-complete', device_id=device_id, class_id=class_id,
+ entity_id=instance_id, attributes=attributes)
+ return True
+
+ def set(self, device_id, class_id, instance_id, attributes):
+ """
+ Set a database value. This should only be called by the Alarm synchronizer
+ and its related tasks
+
+ :param device_id: (str) ONU Device ID
+ :param class_id: (int) ME Class ID
+ :param instance_id: (int) ME Entity ID
+ :param attributes: (dict) Attribute dictionary
+
+ :returns: (bool) True if the value was saved to the database. False if the
+ value was identical to the current instance
+
+ :raises KeyError: If device does not exist
+ :raises DatabaseStateError: If the database is not enabled
+ """
+ self.log.debug('set', device_id=device_id, class_id=class_id,
+ instance_id=instance_id, attributes=attributes)
+ try:
+ if not isinstance(device_id, basestring):
+ raise TypeError('Device ID should be a string')
+
+ if not 0 <= class_id <= 0xFFFF:
+ raise ValueError("Invalid Class ID: {}, should be 0..65535".format(class_id))
+
+ if not 0 <= instance_id <= 0xFFFF:
+ raise ValueError("Invalid Instance ID: {}, should be 0..65535".format(instance_id))
+
+ if not isinstance(attributes, dict):
+ raise TypeError("Attributes should be a dictionary")
+
+ if not self._started:
+ raise DatabaseStateError('The Database is not currently active')
+
+ # Determine the best strategy to add the information
+ dev_proxy = self._device_proxy(device_id)
+
+ try:
+ class_data = dev_proxy.get(AlarmDbExternal.CLASS_PATH.format(class_id), deep=True)
+
+ inst_data = next((inst for inst in class_data.instances
+ if inst.instance_id == instance_id), None)
+
+ if inst_data is None:
+ return self._add_new_instance(device_id, class_id, instance_id, attributes)
+
+ # Possibly adding to or updating an existing instance
+ # Get instance proxy, creating it if needed
+
+ exist_attr_indexes = dict()
+ attr_len = len(inst_data.attributes)
+
+ for index in xrange(0, attr_len):
+ exist_attr_indexes[inst_data.attributes[index].name] = index
+
+ modified = False
+ str_value = ''
+ new_attributes = []
+
+ for k, v in attributes.items():
+ try:
+ str_value = self._attribute_to_string(v)
+ new_attributes.append(AlarmAttributeData(name=k, value=str_value))
+
+ except Exception as e:
+ self.log.exception('save-error', e=e, class_id=class_id,
+ attr=k, value_type=type(v))
+
+ if k not in exist_attr_indexes or \
+ inst_data.attributes[exist_attr_indexes[k]].value != str_value:
+ modified = True
+
+ if modified:
+ now = datetime.utcnow()
+ new_data = AlarmInstanceData(instance_id=instance_id,
+ created=inst_data.created,
+ modified=self._time_to_string(now),
+ attributes=new_attributes)
+ dev_proxy.remove(AlarmDbExternal.INSTANCE_PATH.format(class_id, instance_id))
+ self._root_proxy.add(AlarmDbExternal.INSTANCES_PATH.format(device_id,
+ class_id), new_data)
+
+ self.log.debug('set-complete', device_id=device_id, class_id=class_id,
+ entity_id=instance_id, attributes=attributes, modified=modified)
+ return modified
+
+ except KeyError:
+ # Here if the class-id does not yet exist in the database
+ return self._add_new_class(device_id, class_id, instance_id,
+ attributes)
+ except Exception as e:
+ self.log.exception('set-exception', device_id=device_id, class_id=class_id,
+ instance_id=instance_id, attributes=attributes, e=e)
+ raise
+
+ def delete(self, device_id, class_id, entity_id):
+ """
+ Delete an entity from the database if it exists. If all instances
+ of a class are deleted, the class is deleted as well.
+
+ :param device_id: (str) ONU Device ID
+ :param class_id: (int) ME Class ID
+ :param entity_id: (int) ME Entity ID
+
+ :returns: (bool) True if the instance was found and deleted. False
+ if it did not exist.
+
+ :raises KeyError: If device does not exist
+ :raises DatabaseStateError: If the database is not enabled
+ """
+ self.log.debug('delete', device_id=device_id, class_id=class_id,
+ entity_id=entity_id)
+
+ if not self._started:
+ raise DatabaseStateError('The Database is not currently active')
+
+ if not isinstance(device_id, basestring):
+ raise TypeError('Device ID should be an string')
+
+ if not 0 <= class_id <= 0xFFFF:
+ raise ValueError('class-id is 0..0xFFFF')
+
+ if not 0 <= entity_id <= 0xFFFF:
+ raise ValueError('instance-id is 0..0xFFFF')
+
+ try:
+ # Remove instance
+ self._instance_proxy(device_id, class_id, entity_id).remove('/')
+ now = datetime.utcnow()
+
+ # If resulting class has no instance, remove it as well
+ class_proxy = self._class_proxy(device_id, class_id)
+ class_data = class_proxy.get('/', depth=1)
+
+ if len(class_data.instances) == 0:
+ class_proxy.remove('/')
+
+ self._modified = now
+ return True
+
+ except KeyError:
+ return False # Not found
+
+ except Exception as e:
+ self.log.exception('get-last-data-exception', device_id=device_id, e=e)
+ raise
+
+ def query(self, device_id, class_id=None, instance_id=None, attributes=None):
+ """
+ Get database information.
+
+ This method can be used to request information from the database to the detailed
+ level requested
+
+ :param device_id: (str) ONU Device ID
+ :param class_id: (int) Managed Entity class ID
+ :param instance_id: (int) Managed Entity instance
+ :param attributes: (list/set or str) Managed Entity instance's attributes
+
+ :return: (dict) The value(s) requested. If class/inst/attribute is
+ not found, an empty dictionary is returned
+ :raises KeyError: If the requested device does not exist
+ :raises DatabaseStateError: If the database is not enabled
+ """
+ self.log.debug('query', device_id=device_id, class_id=class_id,
+ instance_id=instance_id, attributes=attributes)
+ try:
+ if class_id is None:
+ # Get full device info
+ dev_data = self._device_proxy(device_id).get('/', depth=-1)
+ data = self._device_to_dict(dev_data)
+
+ elif instance_id is None:
+ # Get all instances of the class
+ try:
+ cls_data = self._class_proxy(device_id, class_id).get('/', depth=-1)
+ data = self._class_to_dict(cls_data)
+
+ except KeyError:
+ data = dict()
+
+ else:
+ # Get all attributes of a specific ME
+ try:
+ inst_data = self._instance_proxy(device_id, class_id, instance_id).\
+ get('/', depth=-1)
+
+ if attributes is None:
+ # All Attributes
+ data = self._instance_to_dict(inst_data)
+
+ else:
+ # Specific attribute(s)
+ if isinstance(attributes, basestring):
+ attributes = {attributes}
+
+ data = {
+ attr.name: self._string_to_attribute(attr.value)
+ for attr in inst_data.attributes if attr.name in attributes}
+
+ except KeyError:
+ data = dict()
+
+ return data
+
+ except KeyError:
+ self.log.warn('query-no-device', device_id=device_id)
+ raise
+
+ except Exception as e:
+ self.log.exception('get-last-sync-exception', device_id=device_id, e=e)
+ raise
+
+ def _instance_to_dict(self, instance):
+ if not isinstance(instance, AlarmInstanceData):
+ raise TypeError('{} is not of type AlarmInstanceData'.format(type(instance)))
+
+ data = {
+ INSTANCE_ID_KEY: instance.instance_id,
+ CREATED_KEY: self._string_to_time(instance.created),
+ MODIFIED_KEY: self._string_to_time(instance.modified),
+ ATTRIBUTES_KEY: dict()
+ }
+ for attribute in instance.attributes:
+ data[ATTRIBUTES_KEY][attribute.name] = self._string_to_attribute(attribute.value)
+ return data
+
+ def _class_to_dict(self, val):
+ if not isinstance(val, AlarmClassData):
+ raise TypeError('{} is not of type AlarmClassData'.format(type(val)))
+
+ data = {
+ CLASS_ID_KEY: val.class_id,
+ }
+ for instance in val.instances:
+ data[instance.instance_id] = self._instance_to_dict(instance)
+ return data
+
+ def _device_to_dict(self, val):
+ if not isinstance(val, AlarmDeviceData):
+ raise TypeError('{} is not of type AlarmDeviceData'.format(type(val)))
+
+ data = {
+ DEVICE_ID_KEY: val.device_id,
+ CREATED_KEY: self._string_to_time(val.created),
+ VERSION_KEY: val.version,
+ ME_KEY: dict(),
+ MSG_TYPE_KEY: set()
+ }
+ for class_data in val.classes:
+ data[class_data.class_id] = self._class_to_dict(class_data)
+ for managed_entity in val.managed_entities:
+ data[ME_KEY][managed_entity.class_id] = managed_entity.name
+
+ for msg_type in val.message_types:
+ data[MSG_TYPE_KEY].add(msg_type.message_type)
+
+ return data