| /** |
| * 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.lib.testbench; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import com.datatorrent.api.DefaultInputPort; |
| import com.datatorrent.api.DefaultOutputPort; |
| import com.datatorrent.common.util.BaseOperator; |
| |
| /** |
| * <p>Implements Compare Filter Tuples class.</p> |
| * <p> |
| * @displayName Compare Filter Tuples |
| * @category Test Bench |
| * @tags map, compare |
| * @since 0.3.2 |
| */ |
| public class CompareFilterTuples<k> extends BaseOperator |
| { |
| // Compare type function |
| private Compare compareType = Compare.Equal; |
| public enum Compare |
| { |
| Smaller, Equal, Greater |
| } |
| |
| /** |
| * Compare the incoming value with the Property value. |
| * @param type Compare |
| */ |
| public void setCompareType(Compare type) |
| { |
| compareType = type; |
| } |
| |
| // compare value |
| private int value; |
| public void setValue(int value) |
| { |
| this.value = value; |
| } |
| |
| // Collected result tuples |
| private Map<k, Integer> result; |
| |
| /** |
| * Input port that takes a map of integer values. |
| */ |
| |
| public final transient DefaultInputPort<Map<k, Integer>> inport = new DefaultInputPort<Map<k, Integer>>() |
| { |
| @Override |
| public void process(Map<k, Integer> map) |
| { |
| for (Map.Entry<k, Integer> entry : map.entrySet()) { |
| if (compareType == Compare.Equal) { |
| if (entry.getValue().intValue() == value) { |
| result.put(entry.getKey(), |
| entry.getValue()); |
| } |
| } |
| if (compareType == Compare.Greater) { |
| if (entry.getValue().intValue() > value) { |
| result.put(entry.getKey(), |
| entry.getValue()); |
| } |
| } |
| if (compareType == Compare.Smaller) { |
| if (entry.getValue().intValue() < value) { |
| result.put(entry.getKey(), |
| entry.getValue()); |
| } |
| } |
| } |
| } |
| }; |
| |
| /** |
| * Output port that emits a map of integer values. |
| */ |
| public final transient DefaultOutputPort<Map<k, Integer>> outport = new DefaultOutputPort<Map<k, Integer>>(); |
| |
| /** |
| * Output redis port that emits a map of <integer,string> values. |
| */ |
| public final transient DefaultOutputPort<Map<Integer, String>> redisport = new DefaultOutputPort<Map<Integer, String>>(); |
| |
| @Override |
| public void beginWindow(long windowId) |
| { |
| result = new HashMap<k, Integer>(); |
| } |
| |
| @Override |
| public void endWindow() |
| { |
| outport.emit(result); |
| |
| int numOuts = 1; |
| Integer total = 0; |
| for (Map.Entry<k, Integer> entry : result.entrySet()) { |
| Map<Integer, String> tuple = new HashMap<Integer, String>(); |
| tuple.put(numOuts++, entry.getKey().toString()); |
| redisport.emit(tuple); |
| total += entry.getValue(); |
| } |
| Map<Integer, String> tuple = new HashMap<Integer, String>(); |
| tuple.put(numOuts++, total.toString()); |
| redisport.emit(tuple); |
| tuple = new HashMap<Integer, String>(); |
| tuple.put(0, new Integer(numOuts).toString()); |
| redisport.emit(tuple); |
| } |
| } |