| /** |
| * 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.testing; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.UUID; |
| import org.apache.storm.spout.SpoutOutputCollector; |
| import org.apache.storm.task.TopologyContext; |
| import org.apache.storm.topology.OutputFieldsDeclarer; |
| import org.apache.storm.topology.base.BaseRichSpout; |
| import org.apache.storm.tuple.Fields; |
| import org.apache.storm.tuple.Values; |
| import org.apache.storm.utils.InprocMessaging; |
| |
| |
| public class FeederSpout extends BaseRichSpout { |
| private int id; |
| private Fields outFields; |
| private SpoutOutputCollector collector; |
| private AckFailDelegate ackFailDelegate; |
| |
| public FeederSpout(List<String> outFields) { |
| this(new Fields(outFields)); |
| } |
| |
| public FeederSpout(Fields outFields) { |
| id = InprocMessaging.acquireNewPort(); |
| this.outFields = outFields; |
| } |
| |
| public void setAckFailDelegate(AckFailDelegate d) { |
| ackFailDelegate = d; |
| } |
| |
| public void feed(List<Object> tuple) { |
| feed(tuple, UUID.randomUUID().toString()); |
| } |
| |
| public void feed(List<Object> tuple, Object msgId) { |
| InprocMessaging.sendMessage(id, new Values(tuple, msgId)); |
| } |
| |
| public void feedNoWait(List<Object> tuple, Object msgId) { |
| InprocMessaging.sendMessageNoWait(id, new Values(tuple, msgId)); |
| } |
| |
| public void waitForReader() { |
| InprocMessaging.waitForReader(id); |
| } |
| |
| @Override |
| public void open(Map<String, Object> conf, TopologyContext context, SpoutOutputCollector collector) { |
| this.collector = collector; |
| } |
| |
| @Override |
| public void close() { |
| |
| } |
| |
| @Override |
| public void nextTuple() { |
| List<Object> toEmit = (List<Object>) InprocMessaging.pollMessage(id); |
| if (toEmit != null) { |
| List<Object> tuple = (List<Object>) toEmit.get(0); |
| Object msgId = toEmit.get(1); |
| |
| collector.emit(tuple, msgId); |
| } |
| } |
| |
| @Override |
| public void ack(Object msgId) { |
| if (ackFailDelegate != null) { |
| ackFailDelegate.ack(msgId); |
| } |
| } |
| |
| @Override |
| public void fail(Object msgId) { |
| if (ackFailDelegate != null) { |
| ackFailDelegate.fail(msgId); |
| } |
| } |
| |
| @Override |
| public void declareOutputFields(OutputFieldsDeclarer declarer) { |
| declarer.declare(outFields); |
| } |
| |
| @Override |
| public Map<String, Object> getComponentConfiguration() { |
| return new HashMap<String, Object>(); |
| } |
| } |