| /** |
| * 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.apex.malhar.lib.window.accumulation; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.apex.malhar.lib.util.KeyValPair; |
| import org.apache.apex.malhar.lib.util.PojoUtils; |
| import org.apache.hadoop.classification.InterfaceStability; |
| |
| import com.google.common.base.Throwables; |
| import com.google.common.collect.Multimap; |
| |
| /** |
| * Right outer join Accumulation for Pojo Streams. |
| * |
| * |
| * @since 3.7.0 |
| */ |
| @InterfaceStability.Evolving |
| public class PojoRightOuterJoin<InputT1, InputT2> |
| extends AbstractPojoJoin<InputT1, InputT2> |
| { |
| public PojoRightOuterJoin() |
| { |
| super(); |
| } |
| |
| public PojoRightOuterJoin(Class<?> outClass, String[] leftKeys, String[] rightKeys) |
| { |
| super(outClass,leftKeys,rightKeys); |
| } |
| |
| public PojoRightOuterJoin(Class<?> outClass, String[] leftKeys, String[] rightKeys, Map<String, KeyValPair<STREAM, String>> outputToInputMap) |
| { |
| super(outClass,leftKeys,rightKeys, outputToInputMap); |
| } |
| |
| @Override |
| public void addNonMatchingResult(Collection<Object> left, Map<String,PojoUtils.Getter> leftGettersStream, List<Object> result) |
| { |
| for (Object lObj:left) { |
| Object o; |
| try { |
| o = outClass.newInstance(); |
| } catch (Throwable e) { |
| throw Throwables.propagate(e); |
| } |
| if (outputToInputMap != null) { |
| for (Map.Entry<String, KeyValPair<STREAM,String>> entry : outputToInputMap.entrySet()) { |
| if (entry.getValue().getKey() == STREAM.RIGHT) { |
| setters.get(entry.getKey()).set(o, leftGettersStream.get(entry.getValue().getValue()).get(lObj)); |
| } |
| } |
| } else { |
| setObjectForResult(leftGettersStream, lObj, o); |
| } |
| result.add(o); |
| } |
| } |
| |
| @Override |
| public void addNonMatchingRightStream(Multimap<List<Object>, Object> rightStream, |
| Map<String,PojoUtils.Getter> rightGettersStream, List<Object> result) |
| { |
| return; |
| } |
| |
| @Override |
| public int getLeftStreamIndex() |
| { |
| return 1; |
| } |
| } |