| /** |
| * 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.windowing; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.function.Supplier; |
| import org.apache.storm.shade.com.google.common.collect.Iterators; |
| import org.apache.storm.tuple.Tuple; |
| |
| /** |
| * An iterator based implementation over the events in a window. |
| */ |
| public class TupleWindowIterImpl implements TupleWindow { |
| private final Supplier<Iterator<Tuple>> tuplesIt; |
| private final Supplier<Iterator<Tuple>> newTuplesIt; |
| private final Supplier<Iterator<Tuple>> expiredTuplesIt; |
| private final Long startTimestamp; |
| private final Long endTimestamp; |
| |
| public TupleWindowIterImpl(Supplier<Iterator<Tuple>> tuplesIt, |
| Supplier<Iterator<Tuple>> newTuplesIt, |
| Supplier<Iterator<Tuple>> expiredTuplesIt, |
| Long startTimestamp, Long endTimestamp) { |
| this.tuplesIt = tuplesIt; |
| this.newTuplesIt = newTuplesIt; |
| this.expiredTuplesIt = expiredTuplesIt; |
| this.startTimestamp = startTimestamp; |
| this.endTimestamp = endTimestamp; |
| } |
| |
| @Override |
| public List<Tuple> get() { |
| List<Tuple> tuples = new ArrayList<>(); |
| tuplesIt.get().forEachRemaining(t -> tuples.add(t)); |
| return tuples; |
| } |
| |
| @Override |
| public Iterator<Tuple> getIter() { |
| return Iterators.unmodifiableIterator(tuplesIt.get()); |
| } |
| |
| @Override |
| public List<Tuple> getNew() { |
| throw new UnsupportedOperationException("Not implemented"); |
| } |
| |
| @Override |
| public List<Tuple> getExpired() { |
| throw new UnsupportedOperationException("Not implemented"); |
| } |
| |
| @Override |
| public Long getEndTimestamp() { |
| return endTimestamp; |
| } |
| |
| @Override |
| public Long getStartTimestamp() { |
| return startTimestamp; |
| } |
| } |