/*
* 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.hmsonline.storm.cassandra.example;
import java.util.Map;
import java.util.Random;
import java.util.UUID;
import backtype.storm.spout.SpoutOutputCollector;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.IRichSpout;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Values;
@SuppressWarnings("serial")
public class TestWordSpout implements IRichSpout {
boolean isDistributed;
SpoutOutputCollector collector;
public TestWordSpout() {
this(true);
}
public TestWordSpout(boolean isDistributed) {
this.isDistributed = isDistributed;
}
public boolean isDistributed() {
return this.isDistributed;
}
@SuppressWarnings("rawtypes")
public void open(Map conf, TopologyContext context, SpoutOutputCollector collector) {
this.collector = collector;
}
public void close() {
}
public void nextTuple() {
final String[] words = new String[] { "nathan", "mike", "jackson", "golda", "bertels" };
final Random rand = new Random();
final String word = words[rand.nextInt(words.length)];
this.collector.emit(new Values(word), UUID.randomUUID());
Thread.yield();
}
public void ack(Object msgId) {
}
public void fail(Object msgId) {
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("word"));
}
@Override
public void activate() {
// TODO Auto-generated method stub
}
@Override
public void deactivate() {
// TODO Auto-generated method stub
}
@Override
public Map<String, Object> getComponentConfiguration() {
return null;
}
}