| /* |
| * 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.beam.runners.core; |
| |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.beam.sdk.state.State; |
| import org.apache.beam.sdk.state.WatermarkHoldState; |
| import org.joda.time.Instant; |
| |
| /** Simulates state like {@link InMemoryStateInternals} and provides some extra helper methods. */ |
| public class TestInMemoryStateInternals<K> extends InMemoryStateInternals<K> { |
| public TestInMemoryStateInternals(K key) { |
| super(key); |
| } |
| |
| public Set<StateTag> getTagsInUse(StateNamespace namespace) { |
| Set<StateTag> inUse = new HashSet<>(); |
| for (Map.Entry<StateTag, State> entry : inMemoryState.getTagsInUse(namespace).entrySet()) { |
| if (!isEmptyForTesting(entry.getValue())) { |
| inUse.add(entry.getKey()); |
| } |
| } |
| return inUse; |
| } |
| |
| public Set<StateNamespace> getNamespacesInUse() { |
| return inMemoryState.getNamespacesInUse(); |
| } |
| |
| /** Return the earliest output watermark hold in state, or null if none. */ |
| public Instant earliestWatermarkHold() { |
| Instant minimum = null; |
| for (State storage : inMemoryState.values()) { |
| if (storage instanceof WatermarkHoldState) { |
| Instant hold = ((WatermarkHoldState) storage).read(); |
| if (minimum == null || (hold != null && hold.isBefore(minimum))) { |
| minimum = hold; |
| } |
| } |
| } |
| return minimum; |
| } |
| } |