def get_resources(self, user=None, project=None, source=None,
start_timestamp=None, start_timestamp_op=None,
end_timestamp=None, end_timestamp_op=None,
metaquery=None, resource=None, pagination=None):
"""Return an iterable of models.Resource instances
:param user: Optional ID for user that owns the resource.
:param project: Optional ID for project that owns the resource.
:param source: Optional source filter.
:param start_timestamp: Optional modified timestamp start range.
:param start_timestamp_op: Optional start time operator, like ge, gt.
:param end_timestamp: Optional modified timestamp end range.
:param end_timestamp_op: Optional end time operator, like lt, le.
:param metaquery: Optional dict with metadata to match on.
:param resource: Optional resource filter.
:param pagination: Optional pagination query.
"""
if pagination:
raise report.NotImplementedError('Pagination not implemented')
q = hbase_utils.make_query(metaquery=metaquery, user_id=user,
project_id=project,
resource_id=resource, source=source)
q = hbase_utils.make_meter_query_for_resource(start_timestamp,
start_timestamp_op,
end_timestamp,
end_timestamp_op,
source, q)
with self.conn_pool.connection() as conn:
resource_table = conn.table(self.RESOURCE_TABLE)
LOG.debug(_("Query Resource table: %s") % q)
for resource_id, data in resource_table.scan(filter=q):
f_res, sources, meters, md = hbase_utils.deserialize_entry(
data)
resource_id = hbase_utils.encode_unicode(resource_id)
# Unfortunately happybase doesn't keep ordered result from
# HBase. So that's why it's needed to find min and max
# manually
first_ts = min(meters, key=operator.itemgetter(1))[1]
last_ts = max(meters, key=operator.itemgetter(1))[1]
source = meters[0][0][1]
# If we use QualifierFilter then HBase returnes only
# qualifiers filtered by. It will not return the whole entry.
# That's why if we need to ask additional qualifiers manually.
if 'project_id' not in f_res and 'user_id' not in f_res:
row = resource_table.row(
resource_id, columns=['f:project_id', 'f:user_id',
'f:resource_metadata'])
f_res, _s, _m, md = hbase_utils.deserialize_entry(row)
yield models.Resource(
resource_id=resource_id,
first_sample_timestamp=first_ts,
last_sample_timestamp=last_ts,
project_id=f_res['project_id'],
source=source,
user_id=f_res['user_id'],
metadata=md)
def record_metering_data(self, data):
"""Write the data to the backend storage system.
:param data: a dictionary such as returned by
report.meter.meter_message_from_counter
"""
with self.conn_pool.connection() as conn:
resource_table = conn.table(self.RESOURCE_TABLE)
meter_table = conn.table(self.METER_TABLE)
resource_metadata = data.get('resource_metadata', {})
# Determine the name of new meter
rts = hbase_utils.timestamp(data['timestamp'])
new_meter = hbase_utils.prepare_key(rts, data['source'],
data['counter_name'],
data['counter_type'],
data['counter_unit'])
# TODO(nprivalova): try not to store resource_id
resource = hbase_utils.serialize_entry(
**{
'source': data['source'],
'meter': {
new_meter: data['timestamp']
},
'resource_metadata': resource_metadata,
'resource_id': data['resource_id'],
'project_id': data['project_id'],
'user_id': data['user_id']
})
# Here we put entry in HBase with our own timestamp. This is needed
# when samples arrive out-of-order
# If we use timestamp=data['timestamp'] the newest data will be
# automatically 'on the top'. It is needed to keep metadata
# up-to-date: metadata from newest samples is considered as actual.
ts = int(time.mktime(data['timestamp'].timetuple()) * 1000)
resource_table.put(hbase_utils.encode_unicode(data['resource_id']),
resource, ts)
# Rowkey consists of reversed timestamp, meter and a
# message uuid for purposes of uniqueness
row = hbase_utils.prepare_key(data['counter_name'], rts,
data['message_id'])
record = hbase_utils.serialize_entry(
data, **{
'source': data['source'],
'rts': rts,
'message': data,
'recorded_at': timeutils.utcnow()
})
meter_table.put(row, record)
def record_metering_data(self, data):
"""Write the data to the backend storage system.
:param data: a dictionary such as returned by
report.meter.meter_message_from_counter
"""
with self.conn_pool.connection() as conn:
resource_table = conn.table(self.RESOURCE_TABLE)
meter_table = conn.table(self.METER_TABLE)
resource_metadata = data.get('resource_metadata', {})
# Determine the name of new meter
rts = hbase_utils.timestamp(data['timestamp'])
new_meter = hbase_utils.prepare_key(
rts, data['source'], data['counter_name'],
data['counter_type'], data['counter_unit'])
# TODO(nprivalova): try not to store resource_id
resource = hbase_utils.serialize_entry(**{
'source': data['source'],
'meter': {new_meter: data['timestamp']},
'resource_metadata': resource_metadata,
'resource_id': data['resource_id'],
'project_id': data['project_id'], 'user_id': data['user_id']})
# Here we put entry in HBase with our own timestamp. This is needed
# when samples arrive out-of-order
# If we use timestamp=data['timestamp'] the newest data will be
# automatically 'on the top'. It is needed to keep metadata
# up-to-date: metadata from newest samples is considered as actual.
ts = int(time.mktime(data['timestamp'].timetuple()) * 1000)
resource_table.put(hbase_utils.encode_unicode(data['resource_id']),
resource, ts)
# Rowkey consists of reversed timestamp, meter and a
# message uuid for purposes of uniqueness
row = hbase_utils.prepare_key(data['counter_name'], rts,
data['message_id'])
record = hbase_utils.serialize_entry(
data, **{'source': data['source'], 'rts': rts,
'message': data, 'recorded_at': timeutils.utcnow()})
meter_table.put(row, record)
def get_resources(self,
user=None,
project=None,
source=None,
start_timestamp=None,
start_timestamp_op=None,
end_timestamp=None,
end_timestamp_op=None,
metaquery=None,
resource=None,
pagination=None):
"""Return an iterable of models.Resource instances
:param user: Optional ID for user that owns the resource.
:param project: Optional ID for project that owns the resource.
:param source: Optional source filter.
:param start_timestamp: Optional modified timestamp start range.
:param start_timestamp_op: Optional start time operator, like ge, gt.
:param end_timestamp: Optional modified timestamp end range.
:param end_timestamp_op: Optional end time operator, like lt, le.
:param metaquery: Optional dict with metadata to match on.
:param resource: Optional resource filter.
:param pagination: Optional pagination query.
"""
if pagination:
raise report.NotImplementedError('Pagination not implemented')
q = hbase_utils.make_query(metaquery=metaquery,
user_id=user,
project_id=project,
resource_id=resource,
source=source)
q = hbase_utils.make_meter_query_for_resource(start_timestamp,
start_timestamp_op,
end_timestamp,
end_timestamp_op, source,
q)
with self.conn_pool.connection() as conn:
resource_table = conn.table(self.RESOURCE_TABLE)
LOG.debug(_("Query Resource table: %s") % q)
for resource_id, data in resource_table.scan(filter=q):
f_res, sources, meters, md = hbase_utils.deserialize_entry(
data)
resource_id = hbase_utils.encode_unicode(resource_id)
# Unfortunately happybase doesn't keep ordered result from
# HBase. So that's why it's needed to find min and max
# manually
first_ts = min(meters, key=operator.itemgetter(1))[1]
last_ts = max(meters, key=operator.itemgetter(1))[1]
source = meters[0][0][1]
# If we use QualifierFilter then HBase returnes only
# qualifiers filtered by. It will not return the whole entry.
# That's why if we need to ask additional qualifiers manually.
if 'project_id' not in f_res and 'user_id' not in f_res:
row = resource_table.row(resource_id,
columns=[
'f:project_id', 'f:user_id',
'f:resource_metadata'
])
f_res, _s, _m, md = hbase_utils.deserialize_entry(row)
yield models.Resource(resource_id=resource_id,
first_sample_timestamp=first_ts,
last_sample_timestamp=last_ts,
project_id=f_res['project_id'],
source=source,
user_id=f_res['user_id'],
metadata=md)
