/**
* 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 com.alipay.dw.jstorm.example.newindow;
import backtype.storm.Config;
import backtype.storm.StormSubmitter;
import backtype.storm.spout.SpoutOutputCollector;
import backtype.storm.task.OutputCollector;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.IRichBolt;
import backtype.storm.topology.IRichSpout;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Tuple;
import backtype.storm.tuple.Values;
import com.alibaba.jstorm.transactional.TransactionTopologyBuilder;
import com.alibaba.jstorm.transactional.bolt.ITransactionBoltExecutor;
import com.alibaba.jstorm.transactional.spout.ITransactionSpoutExecutor;
import com.alibaba.jstorm.transactional.state.IKvState;
import com.alibaba.jstorm.utils.JStormUtils;
import com.alibaba.jstorm.window.BaseWindowedBolt;
import com.alibaba.jstorm.window.Time;
import com.alibaba.jstorm.window.TimeWindow;
import com.alibaba.jstorm.window.TransactionalWindowedBolt;
import com.alibaba.starter.utils.JStormHelper;
import com.alipay.dw.jstorm.example.performance.test.FastWordCountTopology.FastRandomSentenceSpout;
import com.alipay.dw.jstorm.transcation.TransactionTestTopology.TxSplitSentence;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* WordCount but teh spout does not stop, and the bolts are implemented in java.
* This can show how fast the word count can run.
*/
public class TransactionFastWordCountWindowedState {
private static Logger LOG = LoggerFactory.getLogger(TransactionFastWordCountWindowedState.class);
public final static String TOPOLOGY_SPOUT_PARALLELISM_HINT = "spout.parallel";
public final static String TOPOLOGY_SPLIT_PARALLELISM_HINT = "split.parallel";
public final static String TOPOLOGY_COUNT_PARALLELISM_HINT = "count.parallel";
public static class TxFastRandomSentenceSpout extends FastRandomSentenceSpout implements ITransactionSpoutExecutor {
@Override
public void initState(Object state) {
if (state != null) {
index = (Integer) state;
}
LOG.info("initState, index=" + index);
}
@Override
public Object finishBatch(long batchId) {
return index;
}
@Override
public void rollBack(Object state) {
if (state != null) {
index = (Integer) state;
}
LOG.info("rollback! index=" + index);
}
@Override
public Object commit(long batchId, Object stateData) {
/* If any failure happened during committing, just return "fail" flag
* return TransactionCommon.COMMIT_FAIL;
*/
return stateData;
}
@Override
public void ackCommit(long batchId, long ts) {
}
}
public static class WordCount extends TransactionalWindowedBolt<Tuple, String, Integer> {
private static final long serialVersionUID = 1L;
transient OutputCollector collector;
@Override
public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) {
this.collector = collector;
}
@Override
public void execute(Tuple tuple, IKvState<String, Integer> state, TimeWindow window) {
String word = (String) tuple.getValue(0);
Integer count = state.get(word);
if (count == null)
count = 0;
state.put(word, ++count);
}
@Override
public void purgeWindow(IKvState<String, Integer> state, TimeWindow window) {
LOG.info("purging window: {}", window);
LOG.info("word counts: {}", state.getBatch());
}
@Override
public void declareOutputFields(OutputFieldsDeclarer declarer) {
}
@Override
public Map<java.lang.String, Object> getComponentConfiguration() {
return null;
}
}
static Config conf = JStormHelper.getConfig(null);
static boolean isLocal = true;
public static void test() throws Exception {
TransactionTopologyBuilder builder = new TransactionTopologyBuilder();
if (isLocal) {
conf.put("tuple.num.per.batch", 100);
conf.put("transaction.scheduler.spout", false);
conf.put("transaction.exactly.cache.type", "default");
conf.put("transaction.topology", true);
}
int spoutParallelismHint = JStormUtils.parseInt(conf.get(TOPOLOGY_SPOUT_PARALLELISM_HINT), 1);
int splitParallelismHint = JStormUtils.parseInt(conf.get(TOPOLOGY_SPLIT_PARALLELISM_HINT), 1);
int countParallelismHint = JStormUtils.parseInt(conf.get(TOPOLOGY_COUNT_PARALLELISM_HINT), 1);
builder.setSpout("spout", new TxFastRandomSentenceSpout(), spoutParallelismHint);
builder.setBolt("split", new TxSplitSentence(), splitParallelismHint).localOrShuffleGrouping("spout");
WordCount wordCount = new WordCount();
builder.setBolt("count", wordCount
.timeWindow(Time.seconds(60L))
.withTransactionStateOperator(wordCount),
countParallelismHint).fieldsGrouping("split", new Fields("word"));
builder.enableHdfs();
String[] className = Thread.currentThread().getStackTrace()[1].getClassName().split("\\.");
String topologyName = className[className.length - 1];
StormSubmitter.submitTopology(topologyName, conf, builder.createTopology());
}
public static void main(String[] args) throws Exception {
conf = JStormHelper.getConfig(args);
test();
}
}