| /** |
| * 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(Fields outFields) { |
| _id = InprocMessaging.acquireNewPort(); |
| _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); |
| } |
| |
| public void open(Map conf, TopologyContext context, SpoutOutputCollector collector) { |
| _collector = collector; |
| } |
| |
| public void close() { |
| |
| } |
| |
| 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); |
| } |
| } |
| |
| public void ack(Object msgId) { |
| if(_ackFailDelegate!=null) { |
| _ackFailDelegate.ack(msgId); |
| } |
| } |
| |
| public void fail(Object msgId) { |
| if(_ackFailDelegate!=null) { |
| _ackFailDelegate.fail(msgId); |
| } |
| } |
| |
| public void declareOutputFields(OutputFieldsDeclarer declarer) { |
| declarer.declare(_outFields); |
| } |
| |
| @Override |
| public Map<String, Object> getComponentConfiguration() { |
| return new HashMap<String, Object>(); |
| } |
| } |