| /** |
| * 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.datatorrent.contrib.helper; |
| |
| import java.util.HashMap; |
| import java.util.concurrent.ArrayBlockingQueue; |
| |
| import org.slf4j.LoggerFactory; |
| |
| import com.datatorrent.common.util.BaseOperator; |
| import com.datatorrent.api.Context.OperatorContext; |
| import com.datatorrent.api.DefaultOutputPort; |
| import com.datatorrent.api.InputOperator; |
| import com.datatorrent.api.Operator.ActivationListener; |
| |
| public class SourceModule extends BaseOperator |
| implements InputOperator, ActivationListener<OperatorContext> |
| { |
| public final transient DefaultOutputPort<byte[]> outPort = new DefaultOutputPort<byte[]>(); |
| transient ArrayBlockingQueue<byte[]> holdingBuffer; |
| int testNum; |
| |
| private static org.slf4j.Logger logger; |
| |
| public SourceModule() |
| { |
| logger = LoggerFactory.getLogger(SourceModule.class);; |
| } |
| |
| public SourceModule(org.slf4j.Logger loggerInstance) |
| { |
| logger = loggerInstance; |
| } |
| |
| @Override |
| public void setup(OperatorContext context) |
| { |
| holdingBuffer = new ArrayBlockingQueue<byte[]>(1024 * 1024); |
| } |
| |
| public void emitTuple(byte[] message) |
| { |
| logger.debug("Emitting message {}", message); |
| outPort.emit(message); |
| } |
| |
| @Override |
| public void emitTuples() |
| { |
| for (int i = holdingBuffer.size(); i-- > 0;) { |
| emitTuple(holdingBuffer.poll()); |
| } |
| } |
| |
| @Override |
| public void activate(OperatorContext ctx) |
| { |
| for (int i = 0; i < testNum; i++) { |
| HashMap<String, Integer> dataMapa = new HashMap<String, Integer>(); |
| dataMapa.put("a", 2); |
| holdingBuffer.add(dataMapa.toString().getBytes()); |
| |
| HashMap<String, Integer> dataMapb = new HashMap<String, Integer>(); |
| dataMapb.put("b", 20); |
| holdingBuffer.add(dataMapb.toString().getBytes()); |
| |
| HashMap<String, Integer> dataMapc = new HashMap<String, Integer>(); |
| dataMapc.put("c", 1000); |
| holdingBuffer.add(dataMapc.toString().getBytes()); |
| } |
| } |
| |
| public void setTestNum(int testNum) |
| { |
| this.testNum = testNum; |
| } |
| |
| @Override |
| public void deactivate() |
| { |
| } |
| |
| public void replayTuples(long windowId) |
| { |
| } |
| } |