def update_type(self, cursor):
self.trendstore.clear_timestamp(self.timestamp)(cursor)
names = ["cntr"]
types = ["bigint"]
self.trendstore.check_column_types(names, types)(cursor)
partition = self.trendstore.partition(self.timestamp)
modified = self.datasource.tzinfo.localize(datetime.datetime.now())
store_copy_from(cursor, partition.table(), self.large_datapackage,
modified)
def store_datapackage(cursor, trendstore, datapackage, modified):
data_types = extract_data_types(datapackage.rows)
partition = trendstore.partition(datapackage.timestamp)
partition.create(cursor)
partition.check_columns_exist(datapackage.trend_names, data_types)(cursor)
store_copy_from(cursor, partition.table(), datapackage, modified)
return partition
def load(self, cursor):
entitytype = name_to_entitytype(cursor, "materialize_dummytype001")
self.datasource = name_to_datasource(cursor,
"materialize_src_normal001")
view_datasource = name_to_datasource(cursor, "vmaterialize_normal001")
granularity = create_granularity('900')
self.timestamp = self.datasource.tzinfo.localize(
datetime.datetime(2013, 8, 26, 22, 0, 0))
trend_names = ["cntr"]
rows_small = [
(1234, (55,)),
(1235, (56,))]
self.small_datapackage = DataPackage(granularity, self.timestamp,
trend_names, rows_small)
rows_large = [
(1234, (55243444334,)),
(1235, (56242343242,))]
self.large_datapackage = DataPackage(granularity, self.timestamp,
trend_names, rows_large)
self.trendstore = TrendStore(self.datasource, entitytype, granularity,
86400, 'table')
self.trendstore.create(cursor)
partition = self.trendstore.partition(self.timestamp)
partition.create(cursor)
self.trendstore.check_columns_exist(trend_names, ["smallint"])(cursor)
modified = self.datasource.tzinfo.localize(datetime.datetime.now())
store_copy_from(cursor, partition.table(), self.small_datapackage,
modified)
mark_modified(cursor, partition.table(), self.timestamp, modified)
view_trendstore = TrendStore(view_datasource, entitytype, granularity,
0, 'view').create(cursor)
sql = (
"SELECT "
"entity_id, "
"timestamp, "
'cntr FROM {}').format(self.trendstore.base_table().render())
self.view = View(view_trendstore, sql).define(cursor).create(cursor)
