/**
* 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.alibaba.jstorm.elasticsearch.query;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Map;
import backtype.storm.spout.SpoutOutputCollector;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseRichSpout;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Values;
public class TestQuerySpout extends BaseRichSpout {
private static final long serialVersionUID = 5612868387548545552L;
private BufferedReader br = null;
SpoutOutputCollector collector = null;
public void open(Map conf, TopologyContext context,
SpoutOutputCollector collector) {
try {
br = new BufferedReader(
new FileReader(
"src/test/resources/test.txt"));
} catch (FileNotFoundException e) {
e.printStackTrace();
}
this.collector = collector;
}
public void nextTuple() {
try {
String line = br.readLine();
if (line == null) {
return;
}
String[] dims = line.split("\t");
collector.emit(new Values(dims[0]));
} catch (IOException e) {
e.printStackTrace();
}
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("id"));
}
}