blob: 200a8d61397c0dcc5b2a665eac59ff35b28ab2f8 [file] [log] [blame]
#!/usr/bin/env python3
# -*- encoding: utf-8 -*-
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
'''stream aggregator'''
from collections import Counter
from heronpy.api.bolt.bolt import Bolt
# pylint: disable=unused-argument
class StreamAggregateBolt(Bolt):
"""Stream counts are aggregated"""
def initialize(self, config, context):
self.stream_counter = Counter()
def process(self, tup):
self.stream_counter[tup.stream] += 1
def process_tick(self, tup):
self.log("Got tick tuple!")
self.log("Current stream counter: %s" % str(self.stream_counter))