| /* |
| * 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.beam; |
| |
| |
| import org.apache.beam.sdk.Pipeline; |
| import org.apache.beam.sdk.PipelineResult; |
| import org.apache.beam.sdk.options.PipelineOptions; |
| import org.apache.beam.sdk.options.PipelineOptionsValidator; |
| import org.apache.beam.sdk.runners.AggregatorRetrievalException; |
| import org.apache.beam.sdk.runners.AggregatorValues; |
| import org.apache.beam.sdk.runners.PipelineRunner; |
| import org.apache.beam.sdk.transforms.Aggregator; |
| import org.apache.storm.Config; |
| import org.apache.storm.LocalCluster; |
| import org.apache.storm.beam.translation.StormPipelineTranslator; |
| import org.apache.storm.beam.translation.TranslationContext; |
| import org.apache.storm.generated.StormTopology; |
| import org.apache.storm.topology.*; |
| import org.apache.storm.tuple.Fields; |
| import org.apache.storm.utils.Utils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Main entry point into the Storm Runner. |
| * |
| * After reading the user defined pipeline, Beam will invoke the run() method with a representation |
| * of the pipeline. |
| * |
| * TODO: Only supports storm local mode for now. |
| */ |
| public class StormRunner extends PipelineRunner<StormRunner.StormPipelineResult> { |
| private static final Logger LOG = LoggerFactory.getLogger(StormRunner.class); |
| |
| private StormPipelineOptions options; |
| |
| public StormRunner(StormPipelineOptions options){ |
| this.options = options; |
| } |
| |
| public static StormRunner fromOptions(PipelineOptions options){ |
| StormPipelineOptions pipelineOptions = PipelineOptionsValidator.validate(StormPipelineOptions.class, options); |
| return new StormRunner(pipelineOptions); |
| |
| } |
| |
| @Override |
| public StormPipelineResult run(Pipeline pipeline) { |
| LOG.info("Running pipeline..."); |
| TranslationContext context = new TranslationContext(this.options); |
| StormPipelineTranslator transformer = new StormPipelineTranslator(context); |
| transformer.translate(pipeline); |
| |
| for(TranslationContext.Stream stream : context.getStreams()){ |
| LOG.info(stream.getFrom() + " --> " + stream.getTo()); |
| } |
| |
| runTopologyLocal(getTopology(context)); |
| return null; |
| } |
| |
| private void runTopologyLocal(StormTopology topology){ |
| Config conf = new Config(); |
| conf.setMaxSpoutPending(1000); |
| // conf.setDebug(true); |
| LocalCluster cluster = new LocalCluster(); |
| cluster.submitTopology("word-count", conf, topology); |
| |
| try { |
| Thread.sleep(10000); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| } |
| |
| // cluster.shutdown(); |
| } |
| |
| public static class StormPipelineResult implements PipelineResult { |
| private State state; |
| |
| public State getState() { |
| return this.state; |
| } |
| |
| public <T> AggregatorValues<T> getAggregatorValues(Aggregator<?, T> aggregator) throws AggregatorRetrievalException { |
| return null; |
| } |
| } |
| |
| private StormTopology getTopology(TranslationContext context){ |
| TopologyBuilder builder = new TopologyBuilder(); |
| Map<String, IRichSpout> spouts = context.getSpouts(); |
| for(String id : spouts.keySet()){ |
| builder.setSpout(id, spouts.get(id)); |
| } |
| |
| HashMap<String, BoltDeclarer> declarers = new HashMap<String, BoltDeclarer>(); |
| for (TranslationContext.Stream stream : context.getStreams()) { |
| Object boltObj = context.getBolt(stream.getTo()); |
| BoltDeclarer declarer = declarers.get(stream.getTo()); |
| if (boltObj instanceof IRichBolt) { |
| if(declarer == null) { |
| declarer = builder.setBolt(stream.getTo(), |
| (IRichBolt) boltObj); |
| declarers.put(stream.getTo(), declarer); |
| } |
| } else if (boltObj instanceof IBasicBolt) { |
| if(declarer == null) { |
| declarer = builder.setBolt( |
| stream.getTo(), |
| (IBasicBolt) boltObj); |
| declarers.put(stream.getTo(), declarer); |
| } |
| } else if (boltObj instanceof IWindowedBolt) { |
| if(declarer == null) { |
| declarer = builder.setBolt( |
| stream.getTo(), |
| (IWindowedBolt) boltObj); |
| declarers.put(stream.getTo(), declarer); |
| } |
| } else if (boltObj instanceof IStatefulBolt) { |
| if(declarer == null) { |
| declarer = builder.setBolt( |
| stream.getTo(), |
| (IStatefulBolt) boltObj); |
| declarers.put(stream.getTo(), declarer); |
| } |
| } else { |
| throw new IllegalArgumentException("Class does not appear to be a bolt: " + |
| boltObj.getClass().getName()); |
| } |
| |
| TranslationContext.Grouping grouping = stream.getGrouping(); |
| // if the streamId is defined, use it for the grouping, otherwise assume storm's default stream |
| String streamId = (grouping.getStreamId() == null ? Utils.DEFAULT_STREAM_ID : grouping.getStreamId()); |
| |
| |
| switch (grouping.getType()) { |
| case SHUFFLE: |
| declarer.shuffleGrouping(stream.getFrom(), streamId); |
| break; |
| case FIELDS: |
| //TODO check for null grouping args |
| declarer.fieldsGrouping(stream.getFrom(), streamId, new Fields(grouping.getArgs())); |
| break; |
| case ALL: |
| declarer.allGrouping(stream.getFrom(), streamId); |
| break; |
| case DIRECT: |
| declarer.directGrouping(stream.getFrom(), streamId); |
| break; |
| case GLOBAL: |
| declarer.globalGrouping(stream.getFrom(), streamId); |
| break; |
| case LOCAL_OR_SHUFFLE: |
| declarer.localOrShuffleGrouping(stream.getFrom(), streamId); |
| break; |
| case NONE: |
| declarer.noneGrouping(stream.getFrom(), streamId); |
| break; |
| default: |
| throw new UnsupportedOperationException("unsupported grouping type: " + grouping); |
| } |
| } |
| |
| return builder.createTopology(); |
| } |
| } |