| /** |
| * 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.trident.operation.impl; |
| |
| import java.util.List; |
| import org.apache.storm.trident.operation.TridentCollector; |
| import org.apache.storm.trident.tuple.ComboList; |
| |
| public class GroupCollector implements TridentCollector { |
| public List<Object> currGroup; |
| |
| ComboList.Factory _factory; |
| TridentCollector _collector; |
| |
| public GroupCollector(TridentCollector collector, ComboList.Factory factory) { |
| _factory = factory; |
| _collector = collector; |
| } |
| |
| @Override |
| public void emit(List<Object> values) { |
| List[] delegates = new List[2]; |
| delegates[0] = currGroup; |
| delegates[1] = values; |
| _collector.emit(_factory.create(delegates)); |
| } |
| |
| @Override |
| public void flush() { |
| _collector.flush(); |
| } |
| |
| @Override |
| public void reportError(Throwable t) { |
| _collector.reportError(t); |
| } |
| |
| } |