Add PUT/POST methods to FM restful API

This commit implements the methods PUT and POST in order
to insert and update alarms.

Story: 2004008
Task: 30270

Change-Id: I773e651165b3654684b95463167fc565aef1ffa4
Co-authored-by: Sun Austin <austin.sun@intel.com>
Signed-off-by: Mario Alfredo Carrillo Arevalo <mario.alfredo.c.arevalo@intel.com>
Signed-off-by: Sun Austin <austin.sun@intel.com>

fm-api/fm_api/constants.py

@@ -321,6 +321,7 @@ FM_LOG_ID_SW_UPGRADE_AUTO_APPLY_ABORTED = ALARM_GROUP_SW_MGMT + ".221"
 FM_ALARM_STATE_SET = 'set'
 FM_ALARM_STATE_CLEAR = 'clear'
 FM_ALARM_STATE_MSG = 'msg'
+FM_ALARM_STATE_LOG = 'log'
 
 FM_ALARM_TYPE_0 = 'other'
 FM_ALARM_TYPE_1 = 'communication'
@@ -425,7 +426,8 @@ ALARM_PROBABLE_CAUSE_75 = 'configuration-out-of-date'
 ALARM_PROBABLE_CAUSE_76 = 'configuration-provisioning-required'
 ALARM_PROBABLE_CAUSE_UNKNOWN = 'unknown'
 
-ALARM_STATE = [FM_ALARM_STATE_SET, FM_ALARM_STATE_CLEAR, FM_ALARM_STATE_MSG]
+ALARM_STATE = [FM_ALARM_STATE_SET, FM_ALARM_STATE_CLEAR,
+               FM_ALARM_STATE_MSG, FM_ALARM_STATE_LOG]
 
 ALARM_TYPE = [FM_ALARM_TYPE_0, FM_ALARM_TYPE_1, FM_ALARM_TYPE_2,
               FM_ALARM_TYPE_3, FM_ALARM_TYPE_4, FM_ALARM_TYPE_5,

fm-rest-api/fm/fm/api/config.py

@@ -30,6 +30,12 @@ sysinv_opts = [
 
 version_info = pbr.version.VersionInfo('fm')
 
+fm_opts = [
+    cfg.StrOpt('event_log_max_size',
+               default='4000',
+               help="the max size of event_log"),
+]
+
 # Pecan Application Configurations
 app = {
     'root': 'fm.api.controllers.root.RootController',
@@ -51,7 +57,7 @@ def init(args, **kwargs):
     ks_loading.register_session_conf_options(cfg.CONF,
                                              sysinv_group.name)
     logging.register_options(cfg.CONF)
-
+    cfg.CONF.register_opts(fm_opts)
     cfg.CONF(args=args, project='fm',
              version='%%(prog)s %s' % version_info.release_string(),
              **kwargs)
@@ -65,3 +71,7 @@ def setup_logging():
               {'prog': sys.argv[0],
                'version': version_info.release_string()})
     LOG.debug("command line: %s", " ".join(sys.argv))
+
+
+def get_max_event_log():
+    return cfg.CONF.event_log_max_size

fm-rest-api/fm/fm/api/controllers/v1/alarm.py

@@ -6,12 +6,14 @@
 
 
 import datetime
+import json
 import pecan
 from pecan import rest
 
 import wsme
 from wsme import types as wtypes
 import wsmeext.pecan as wsme_pecan
+from oslo_utils._i18n import _
 from oslo_log import log
 
 from fm_api import fm_api
@@ -132,7 +134,8 @@ class Alarm(base.APIBase):
             not fm_api.FaultAPIs.alarm_allowed(alm.severity, mgmt_affecting))
 
         alm.degrade_affecting = str(
-            not fm_api.FaultAPIs.alarm_allowed(alm.severity, degrade_affecting))
+            not fm_api.FaultAPIs.alarm_allowed(alm.severity,
+                                               degrade_affecting))
 
         return alm
 
@@ -275,6 +278,28 @@ class AlarmController(rest.RestController):
                                                   sort_key=sort_key,
                                                   sort_dir=sort_dir)
 
+    def _get_event_log_data(self, alarm_dict):
+        """ Retrive a dictionary to create an event_log object
+
+        :param alarm_dict: Dictionary obtained from an alarm object.
+        """
+        event_log_dict = {}
+        for key in alarm_dict.keys():
+            if key == 'alarm_id':
+                event_log_dict['event_log_id'] = alarm_dict[key]
+            elif key == 'alarm_state':
+                event_log_dict['state'] = alarm_dict[key]
+            elif key == 'alarm_type':
+                event_log_dict['event_log_type'] = alarm_dict[key]
+            elif (
+                key == 'inhibit_alarms' or key == 'inhibit_alarms' or
+                key == 'updated_at' or key == 'updated_at' or key == 'masked'
+            ):
+                continue
+            else:
+                event_log_dict[key] = alarm_dict[key]
+        return event_log_dict
+
     @wsme_pecan.wsexpose(AlarmCollection, [Query],
                          types.uuid, int, wtypes.text, wtypes.text, bool, bool)
     def get_all(self, q=[], marker=None, limit=None, sort_key='id',
@@ -332,7 +357,13 @@ class AlarmController(rest.RestController):
 
         :param id: uuid of an alarm.
         """
+        data = pecan.request.dbapi.alarm_get(id)
+        if data is None:
+            raise wsme.exc.ClientSideError(_("can not find record to clear!"))
         pecan.request.dbapi.alarm_destroy(id)
+        alarm_state = fm_constants.FM_ALARM_STATE_CLEAR
+        tmp_dict = data.as_dict()
+        self._alarm_save2event_log(tmp_dict, alarm_state, empty_uuid=True)
 
     @wsme_pecan.wsexpose(AlarmSummary, bool)
     def summary(self, include_suppress=False):
@@ -341,3 +372,77 @@ class AlarmController(rest.RestController):
         :param include_suppress: filter on suppressed alarms. Default: False
         """
         return self._get_alarm_summary(include_suppress)
+
+    def _alarm_save2event_log(self, data_dict, fm_state, empty_uuid=False):
+        event_log_data = self._get_event_log_data(data_dict)
+        event_log_data['state'] = fm_state
+        event_log_data['id'] = None
+        if empty_uuid is True:
+            event_log_data['uuid'] = None
+        if (event_log_data['timestamp'] is None or
+                fm_state == fm_constants.FM_ALARM_STATE_CLEAR):
+            event_log_data['timestamp'] = datetime.datetime.utcnow()
+        event_data = pecan.request.dbapi.event_log_create(event_log_data)
+        return event_data
+
+    @wsme_pecan.wsexpose(wtypes.text, body=Alarm)
+    def post(self, alarm_data):
+        """Create an alarm/event log.
+        :param alarm_data: All information required to create an
+         alarm or eventlog.
+        """
+
+        alarm_data_dict = alarm_data.as_dict()
+        alarm_state = alarm_data_dict['alarm_state']
+        try:
+            if alarm_state == fm_constants.FM_ALARM_STATE_SET:
+                data = pecan.request.dbapi.alarm_create(alarm_data_dict)
+                tmp_dict = data.as_dict()
+                self._alarm_save2event_log(tmp_dict, alarm_state)
+            elif (
+                alarm_state == fm_constants.FM_ALARM_STATE_LOG or
+                alarm_state == fm_constants.FM_ALARM_STATE_MSG
+            ):
+                data = self._alarm_save2event_log(alarm_data_dict, 'log')
+            # This is same action as DELETE Method if para is uuid
+            # keep this RESTful for future use to clear/delete alarm with parameters
+            # are alarm_id and entity_instance_id
+            elif alarm_state == fm_constants.FM_ALARM_STATE_CLEAR:
+                clear_uuid = alarm_data_dict['uuid']
+                alarm_id = alarm_data_dict['alarm_id']
+                entity_instance_id = alarm_data_dict['entity_instance_id']
+                if clear_uuid is not None:
+                    data = pecan.request.dbapi.alarm_get(clear_uuid)
+                    pecan.request.dbapi.alarm_destroy(clear_uuid)
+                    tmp_dict = data.as_dict()
+                    self._alarm_save2event_log(tmp_dict, alarm_state, empty_uuid=True)
+                elif alarm_id is not None and entity_instance_id is not None:
+                    data = pecan.request.dbapi.alarm_get_by_ids(alarm_id, entity_instance_id)
+                    if data is None:
+                        raise wsme.exc.ClientSideError(_("can not find record to clear!"))
+                    pecan.request.dbapi.alarm_destroy_by_ids(alarm_id, entity_instance_id)
+                    tmp_dict = data.as_dict()
+                    self._alarm_save2event_log(tmp_dict, alarm_state, empty_uuid=True)
+            else:
+                msg = _("The alarm_state %s does not support!")
+                raise wsme.exc.ClientSideError(msg % alarm_state)
+        except Exception as err:
+            return err
+        alarm_dict = data.as_dict()
+        return json.dumps({"uuid": alarm_dict['uuid']})
+
+    @wsme_pecan.wsexpose(wtypes.text, wtypes.text, body=Alarm)
+    def put(self, id, alarm_data):
+        """ Update an alarm
+
+        :param id: uuid of an alarm.
+        :param alarm_data: Information to be updated
+        """
+
+        alarm_data_dict = alarm_data.as_dict()
+        try:
+            alm = pecan.request.dbapi.alarm_update(id, alarm_data_dict)
+        except Exception as err:
+            return err
+        alarm_dict = alm.as_dict()
+        return json.dumps({"uuid": alarm_dict['uuid']})

fm-rest-api/fm/fm/cmd/dbsync.py

@@ -7,12 +7,10 @@
 
 import sys
 from oslo_config import cfg
-
+cfg.CONF(sys.argv[1:], project='fm')
 from fm.db import migration
-
 CONF = cfg.CONF
 
 
 def main():
-    cfg.CONF(sys.argv[1:], project='fm')
     migration.db_sync()

fm-rest-api/fm/fm/common/exceptions.py

@@ -112,3 +112,7 @@ class Conflict(ApiError):
 
 class AlarmAlreadyExists(Conflict):
     message = _("An Alarm with UUID %(uuid)s already exists.")
+
+
+class EventLogAlreadyExists(Conflict):
+    message = _("An Eventlog with ID %(id)s already exists.")

fm-rest-api/fm/fm/db/api.py

@@ -112,6 +112,15 @@ class Connection(object):
 
         """
 
+    @abc.abstractmethod
+    def event_log_create(self, values):
+        """Create a new event_log.
+
+        :param values: A dict containing several items used to identify
+                       and track the event_log.
+        :returns: An event_log.
+        """
+
     @abc.abstractmethod
     def event_log_get(self, uuid):
         """Return an event_log.

fm-rest-api/fm/fm/db/sqlalchemy/api.py

@@ -20,6 +20,7 @@ from oslo_db.sqlalchemy import session as db_session
 from sqlalchemy import asc, desc, or_
 from sqlalchemy.orm.exc import NoResultFound
 
+from fm.api import config
 from fm.common import constants
 from fm.common import exceptions
 from fm.common import utils
@@ -290,12 +291,10 @@ class Connection(api.Connection):
         with _session_for_write() as session:
             query = model_query(models.Alarm, session=session)
             query = query.filter_by(uuid=id)
-
             try:
                 query.one()
             except NoResultFound:
                 raise exceptions.AlarmNotFound(alarm=id)
-
             query.delete()
 
     def alarm_destroy_by_ids(self, alarm_id, entity_instance_id):
@@ -304,14 +303,52 @@ class Connection(api.Connection):
             if alarm_id and entity_instance_id:
                 query = query.filter_by(alarm_id=alarm_id)
                 query = query.filter_by(entity_instance_id=entity_instance_id)
-
             try:
                 query.one()
             except NoResultFound:
                 raise exceptions.AlarmNotFound(alarm=alarm_id)
-
             query.delete()
 
+    def event_log_create(self, values):
+        if not values.get('uuid'):
+            values['uuid'] = utils.generate_uuid()
+        event_log = models.EventLog()
+        event_log.update(values)
+        count = self.event_log_get_count()
+        max_log = config.get_max_event_log()
+        if count >= int(max_log):
+            self.delete_oldest_event_log()
+        with _session_for_write() as session:
+            try:
+                session.add(event_log)
+                session.flush()
+            except db_exc.DBDuplicateEntry:
+                raise exceptions.EventLogAlreadyExists(id=values['id'])
+            return event_log
+
+    def event_log_get_count(self):
+        query = model_query(models.EventLog)
+        return query.count()
+
+    def delete_oldest_event_log(self):
+        result = self.event_log_get_oldest()
+        self.event_log_delete(result['id'])
+
+    def event_log_delete(self, id):
+        with _session_for_write() as session:
+            query = model_query(models.EventLog, session=session)
+            query = query.filter_by(id=id)
+            try:
+                query.one()
+            except NoResultFound:
+                raise exceptions.EventLogNotFound(eventLog=id)
+            query.delete()
+
+    def event_log_get_oldest(self):
+        query = model_query(models.EventLog)
+        result = query.order_by(asc(models.EventLog.created_at)).limit(1).one()
+        return result
+
     @objects.objectify(objects.event_log)
     def event_log_get(self, uuid):
         query = model_query(models.EventLog)

fm-rest-api/fm/fm/db/sqlalchemy/migrate_repo/versions/001_init.py

@@ -7,8 +7,10 @@
 
 from sqlalchemy import Column, MetaData, String, Table
 from sqlalchemy import Boolean, Integer, DateTime
+from sqlalchemy.dialects.mysql import DATETIME
 from sqlalchemy.schema import ForeignKeyConstraint
-
+from oslo_log import log
+LOG = log.getLogger(__name__)
 ENGINE = 'InnoDB'
 CHARSET = 'utf8'
 
@@ -37,21 +39,25 @@ def upgrade(migrate_engine):
         mysql_charset=CHARSET,
     )
     event_suppression.create()
-
+    if migrate_engine.url.get_dialect().name == 'mysql':
+        LOG.info("alarm dialect is mysql")
+        timestamp_column = Column('timestamp', DATETIME(fsp=6))
+    else:
+        LOG.info("alarm dialect is others")
+        timestamp_column = Column('timestamp', DateTime(timezone=False))
     alarm = Table(
         'alarm',
         meta,
         Column('created_at', DateTime),
         Column('updated_at', DateTime),
         Column('deleted_at', DateTime),
-
         Column('id', Integer, primary_key=True, nullable=False),
         Column('uuid', String(255), unique=True, index=True),
         Column('alarm_id', String(255), index=True),
         Column('alarm_state', String(255)),
         Column('entity_type_id', String(255), index=True),
         Column('entity_instance_id', String(255), index=True),
-        Column('timestamp', DateTime(timezone=False)),
+        timestamp_column,
         Column('severity', String(255), index=True),
         Column('reason_text', String(255)),
         Column('alarm_type', String(255), index=True),
@@ -72,6 +78,12 @@ def upgrade(migrate_engine):
         mysql_charset=CHARSET,
     )
     alarm.create()
+    if migrate_engine.url.get_dialect().name == 'mysql':
+        LOG.info("event_log dialect is mysql")
+        timestamp_column = Column('timestamp', DATETIME(fsp=6))
+    else:
+        LOG.info("event_log dialect is others")
+        timestamp_column = Column('timestamp', DateTime(timezone=False))
 
     event_log = Table(
         'event_log',
@@ -86,7 +98,7 @@ def upgrade(migrate_engine):
         Column('state', String(255)),
         Column('entity_type_id', String(255), index=True),
         Column('entity_instance_id', String(255), index=True),
-        Column('timestamp', DateTime(timezone=False)),
+        timestamp_column,
         Column('severity', String(255), index=True),
         Column('reason_text', String(255)),
         Column('event_log_type', String(255), index=True),

fm-rest-api/fm/fm/db/sqlalchemy/models.py

@@ -23,7 +23,6 @@
 
 import json
 from six.moves.urllib.parse import urlparse
-
 from oslo_config import cfg
 
 from sqlalchemy import Column, ForeignKey, Integer, Boolean
@@ -32,6 +31,10 @@ from sqlalchemy import DateTime
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.types import TypeDecorator, VARCHAR
 from oslo_db.sqlalchemy import models
+from sqlalchemy.dialects.mysql import DATETIME
+from oslo_log import log
+CONF = cfg.CONF
+LOG = log.getLogger(__name__)
 
 
 def table_args():
@@ -42,6 +45,18 @@ def table_args():
     return None
 
 
+def get_dialect_name():
+    db_driver_name = 'mysql'
+    if CONF.database.connection is None:
+        LOG.error("engine_name is None")
+        return db_driver_name
+    engine_name = urlparse(CONF.database.connection).scheme
+    if engine_name is not None:
+        db_driver_name = engine_name.split("+", 1)[0]
+    LOG.info("db_drive_name is %s" % db_driver_name)
+    return db_driver_name
+
+
 class JSONEncodedDict(TypeDecorator):
     """Represents an immutable structure as a json-encoded string."""
 
@@ -83,7 +98,10 @@ class Alarm(Base):
     alarm_state = Column(String(255))
     entity_type_id = Column(String(255), index=True)
     entity_instance_id = Column(String(255), index=True)
-    timestamp = Column(DateTime(timezone=False))
+    if get_dialect_name() == 'mysql':
+        timestamp = Column(DATETIME(fsp=6))
+    else:
+        timestamp = Column(DateTime(timezone=False))
     severity = Column(String(255), index=True)
     reason_text = Column(String(255))
     alarm_type = Column(String(255), index=True)
@@ -106,7 +124,10 @@ class EventLog(Base):
     state = Column(String(255))
     entity_type_id = Column(String(255), index=True)
     entity_instance_id = Column(String(255), index=True)
-    timestamp = Column(DateTime(timezone=False))
+    if get_dialect_name() == 'mysql':
+        timestamp = Column(DATETIME(fsp=6))
+    else:
+        timestamp = Column(DateTime(timezone=False))
     severity = Column(String(255), index=True)
     reason_text = Column(String(255))
     event_log_type = Column(String(255), index=True)