Github user revans2 commented on a diff in the pull request: https://github.com/apache/storm/pull/1808#discussion_r96923940 --- Diff: external/storm-kafka-client/src/main/java/org/apache/storm/kafka/trident/TridentKafkaState.java --- @@ -0,0 +1,114 @@ +/** + * 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 org.apache.storm.kafka.trident; + +import org.apache.storm.task.OutputCollector; +import org.apache.storm.topology.FailedException; +import org.apache.kafka.clients.producer.KafkaProducer; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.clients.producer.RecordMetadata; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.apache.storm.kafka.trident.mapper.TridentTupleToKafkaMapper; +import org.apache.storm.kafka.trident.selector.KafkaTopicSelector; +import org.apache.storm.trident.operation.TridentCollector; +import org.apache.storm.trident.state.State; +import org.apache.storm.trident.tuple.TridentTuple; + +import java.util.ArrayList; +import java.util.List; +import java.util.Properties; +import java.util.concurrent.ExecutionException; +import java.util.concurrent.Future; + +public class TridentKafkaState implements State { + private static final Logger LOG = LoggerFactory.getLogger(TridentKafkaState.class); + + private KafkaProducer producer; + private OutputCollector collector; + + private TridentTupleToKafkaMapper mapper; + private KafkaTopicSelector topicSelector; + + public TridentKafkaState withTridentTupleToKafkaMapper(TridentTupleToKafkaMapper mapper) { --- End diff -- This is code that was "moved" like with the KafkaBolt for storm-kafka to storm-kafka-client. If we really want to make it immutable we can, but I think that is beyond the scope of this JIRA
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