| /** |
| * 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. |
| */ |
| package storm.kafka.trident; |
| |
| import backtype.storm.task.TopologyContext; |
| import backtype.storm.tuple.Fields; |
| import storm.kafka.Partition; |
| import storm.trident.spout.IOpaquePartitionedTridentSpout; |
| |
| import java.util.Map; |
| import java.util.UUID; |
| |
| |
| public class OpaqueTridentKafkaSpout implements IOpaquePartitionedTridentSpout<GlobalPartitionInformation, Partition, Map> { |
| |
| |
| TridentKafkaConfig _config; |
| String _topologyInstanceId = UUID.randomUUID().toString(); |
| |
| public OpaqueTridentKafkaSpout(TridentKafkaConfig config) { |
| _config = config; |
| } |
| |
| @Override |
| public IOpaquePartitionedTridentSpout.Emitter<GlobalPartitionInformation, Partition, Map> getEmitter(Map conf, TopologyContext context) { |
| return new TridentKafkaEmitter(conf, context, _config, _topologyInstanceId).asOpaqueEmitter(); |
| } |
| |
| @Override |
| public IOpaquePartitionedTridentSpout.Coordinator getCoordinator(Map conf, TopologyContext tc) { |
| return new storm.kafka.trident.Coordinator(conf, _config); |
| } |
| |
| @Override |
| public Fields getOutputFields() { |
| return _config.scheme.getOutputFields(); |
| } |
| |
| @Override |
| public Map<String, Object> getComponentConfiguration() { |
| return null; |
| } |
| |
| } |