content: /*
   * 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.kafka.streams.kstream.internals.suppress;
  
  import org.apache.kafka.streams.kstream.Windowed;
  import org.apache.kafka.streams.processor.RecordContext;
  
  final class TimeDefinitions {
      private TimeDefinitions() {}
  
      /**
       * This interface should never be instantiated outside of this class.
       */
      interface TimeDefinition<K> {
          long time(final RecordContext context, final K key);
      }
  
      static class RecordTimeDefinition<K> implements TimeDefinition<K> {
          private static final RecordTimeDefinition<?> INSTANCE = new RecordTimeDefinition<>();
  
          private RecordTimeDefinition() {}
  
          @SuppressWarnings("unchecked")
          static <K> RecordTimeDefinition<K> instance() {
              return (RecordTimeDefinition<K>) RecordTimeDefinition.INSTANCE;
          }
  
          @Override
          public long time(final RecordContext context, final K key) {
              return context.timestamp();
          }
      }
  
      static class WindowEndTimeDefinition<K extends Windowed<?>> implements TimeDefinition<K> {
          private static final WindowEndTimeDefinition<?> INSTANCE = new WindowEndTimeDefinition<>();
  
          private WindowEndTimeDefinition() {}
  
          @SuppressWarnings("unchecked")
          static <K extends Windowed<?>> WindowEndTimeDefinition<K> instance() {
              return (WindowEndTimeDefinition<K>) WindowEndTimeDefinition.INSTANCE;
          }
  
          @Override
          public long time(final RecordContext context, final K key) {
              return key.window().end();
          }
      }
  }
  