| /** |
| * 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.stram.engine; |
| |
| import java.util.concurrent.ConcurrentLinkedQueue; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.datatorrent.api.Context.OperatorContext; |
| import com.datatorrent.api.DefaultInputPort; |
| import com.datatorrent.api.DefaultOutputPort; |
| import com.datatorrent.api.InputOperator; |
| import com.datatorrent.api.annotation.OutputPortFieldAnnotation; |
| import com.datatorrent.common.util.BaseOperator; |
| |
| public class TestGeneratorInputOperator implements InputOperator |
| { |
| private static final Logger LOG = LoggerFactory.getLogger(TestGeneratorInputOperator.class); |
| public static final String OUTPUT_PORT = "outport"; |
| private String myConfigProperty; |
| private int maxTuples = -1; |
| private int generatedTuples = 0; |
| private int remainingSleepTime; |
| private int emitInterval = 1000; |
| private final int spinMillis = 50; |
| private String myStringProperty; |
| private final ConcurrentLinkedQueue<String> externallyAddedTuples = new ConcurrentLinkedQueue<>(); |
| @OutputPortFieldAnnotation(optional = true) |
| public final transient DefaultOutputPort<Object> outport = new DefaultOutputPort<>(); |
| |
| public int getMaxTuples() |
| { |
| return maxTuples; |
| } |
| |
| public void setEmitInterval(int emitInterval) |
| { |
| this.emitInterval = emitInterval; |
| } |
| |
| public void setMaxTuples(int maxNumbers) |
| { |
| LOG.debug("setting max tuples to {}", maxNumbers); |
| this.maxTuples = maxNumbers; |
| } |
| |
| public String getMyConfigProperty() |
| { |
| return myConfigProperty; |
| } |
| |
| public void setMyConfigProperty(String myConfigProperty) |
| { |
| this.myConfigProperty = myConfigProperty; |
| } |
| |
| @Override |
| public void emitTuples() |
| { |
| Object tuple; |
| while ((tuple = this.externallyAddedTuples.poll()) != null) { |
| outport.emit(tuple); |
| } |
| |
| if (remainingSleepTime > 0) { |
| try { |
| Thread.sleep(spinMillis); |
| remainingSleepTime -= spinMillis; |
| } catch (InterruptedException ie) { |
| throw new RuntimeException(ie); |
| } |
| } else if (maxTuples != 0) { |
| generatedTuples++; |
| LOG.debug("sending tuple " + generatedTuples); |
| outport.emit(String.valueOf(generatedTuples)); |
| if (maxTuples > 0 && maxTuples <= generatedTuples) { |
| BaseOperator.shutdown(); |
| throw new RuntimeException(new InterruptedException("done emitting all.")); |
| } |
| remainingSleepTime = emitInterval; |
| } else { |
| remainingSleepTime = emitInterval; |
| } |
| } |
| |
| /** |
| * Manually add a tuple to emit. |
| * |
| * @param s tuple which you want to send through this operator |
| */ |
| public void addTuple(String s) |
| { |
| externallyAddedTuples.add(s); |
| } |
| |
| @Override |
| public void beginWindow(long windowId) |
| { |
| } |
| |
| @Override |
| public void endWindow() |
| { |
| } |
| |
| @Override |
| public void setup(OperatorContext context) |
| { |
| } |
| |
| @Override |
| public void teardown() |
| { |
| } |
| |
| public String getMyStringProperty() |
| { |
| return myStringProperty; |
| } |
| |
| public void setMyStringProperty(String myStringProperty) |
| { |
| this.myStringProperty = myStringProperty; |
| } |
| |
| public static class InvalidInputOperator extends TestGeneratorInputOperator implements InputOperator |
| { |
| public final transient DefaultInputPort<Object> input = new DefaultInputPort<Object>() |
| { |
| @Override |
| public void process(Object tuple) |
| { |
| } |
| }; |
| } |
| |
| public static class ValidGenericOperator extends TestGeneratorInputOperator |
| { |
| public final transient DefaultInputPort<Object> input = new DefaultInputPort<Object>() |
| { |
| @Override |
| public void process(Object tuple) |
| { |
| } |
| }; |
| } |
| |
| public static class ValidInputOperator extends ValidGenericOperator implements InputOperator |
| { |
| } |
| |
| } |