| /* |
| * 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.nemo.compiler.frontend.beam.transform; |
| |
| import org.apache.beam.runners.core.InMemoryTimerInternals; |
| import org.apache.beam.runners.core.TimerInternals; |
| import org.apache.beam.runners.core.TimerInternalsFactory; |
| import org.apache.beam.sdk.state.TimeDomain; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import java.util.*; |
| |
| /** |
| * InMemoryTimerInternalsFactory. |
| * @param <K> key type |
| */ |
| public final class InMemoryTimerInternalsFactory<K> implements TimerInternalsFactory<K> { |
| private static final Logger LOG = LoggerFactory.getLogger(InMemoryTimerInternalsFactory.class.getName()); |
| private Map<K, InMemoryTimerInternals> timerInternalsMap = new HashMap<>(); |
| |
| @Override |
| public String toString() { |
| return "TimerInternalsMap: " + timerInternalsMap; |
| } |
| |
| @Override |
| public TimerInternals timerInternalsForKey(final K key) { |
| if (timerInternalsMap.get(key) != null) { |
| return timerInternalsMap.get(key); |
| } else { |
| final InMemoryTimerInternals internal = new InMemoryTimerInternals(); |
| timerInternalsMap.put(key, internal); |
| return internal; |
| } |
| } |
| |
| /** Remove the next eligible timer in {@param timeDomain}. */ |
| public TimerInternals.TimerData pollTimer(final InMemoryTimerInternals timerInternal, final TimeDomain timeDomain) { |
| switch (timeDomain) { |
| case EVENT_TIME : |
| return timerInternal.removeNextEventTimer(); |
| case PROCESSING_TIME: |
| return timerInternal.removeNextProcessingTimer(); |
| case SYNCHRONIZED_PROCESSING_TIME: |
| return timerInternal.removeNextSynchronizedProcessingTimer(); |
| default : |
| return null; |
| } |
| } |
| |
| /** Accessor for timerInternalsMap. */ |
| public Map<K, InMemoryTimerInternals> getTimerInternalsMap() { |
| return timerInternalsMap; |
| } |
| |
| /** Helper method to check if {@param timerInternals} doesn't have any timers left. */ |
| public boolean isEmpty(final InMemoryTimerInternals timerInternal) { |
| for (final TimeDomain domain : TimeDomain.values()) { |
| if (timerInternal.getNextTimer(domain) != null) { |
| return false; |
| } |
| } |
| return true; |
| } |
| } |