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ASF GitHub Bot commented on STORM-1979: --------------------------------------- Github user satishd commented on a diff in the pull request: https://github.com/apache/storm/pull/1583#discussion_r73727010 --- Diff: external/storm-druid/src/main/java/org/apache/storm/druid/bolt/DruidBeamBolt.java --- @@ -0,0 +1,111 @@ +/* + * 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.druid.bolt; + +import com.metamx.tranquility.tranquilizer.MessageDroppedException; +import com.metamx.tranquility.tranquilizer.Tranquilizer; +import com.twitter.util.Future; +import com.twitter.util.FutureEventListener; +import org.apache.storm.task.OutputCollector; +import org.apache.storm.task.TopologyContext; +import org.apache.storm.topology.OutputFieldsDeclarer; +import org.apache.storm.topology.base.BaseRichBolt; +import org.apache.storm.tuple.Fields; +import org.apache.storm.tuple.Tuple; +import org.apache.storm.tuple.Values; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.Map; + +/** + * Basic bolt implementation for storing data to Druid datastore. + * <p/> + * This implementation uses Druid's Tranquility library (https://github.com/druid-io/tranquility) + * to send to druid store. + * Some of the concepts are borrowed from Tranquility storm connector implementation. + * (https://github.com/druid-io/tranquility/blob/master/docs/storm.md) + * + * By default this Bolt expects to receive tuples in which "event" field gives your event type. + * This logic can be changed by implementing ITupleDruidEventMapper interface. + * <p/> + * + */ +public class DruidBeamBolt<E> extends BaseRichBolt { + private static final Logger LOG = LoggerFactory.getLogger(DruidBeamBolt.class); --- End diff -- `LOG` is never used. You can keep it if you want to use some logging in this class. > Storm Druid Connector > --------------------- > > Key: STORM-1979 > URL: https://issues.apache.org/jira/browse/STORM-1979 > Project: Apache Storm > Issue Type: Improvement > Reporter: Sriharsha Chintalapani > Assignee: Manikumar Reddy > > Storm Bolt & Trident state implementation for Druid. -- This message was sent by Atlassian JIRA (v6.3.4#6332)