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.state.internals;
  
  import org.apache.kafka.common.utils.Bytes;
  import org.apache.kafka.streams.kstream.Windowed;
  import org.apache.kafka.streams.processor.StateStore;
  import org.apache.kafka.streams.processor.StateStoreContext;
  import org.apache.kafka.streams.query.Position;
  import org.apache.kafka.streams.query.PositionBound;
  import org.apache.kafka.streams.query.Query;
  import org.apache.kafka.streams.query.QueryConfig;
  import org.apache.kafka.streams.query.QueryResult;
  import org.apache.kafka.streams.state.KeyValueIterator;
  import org.apache.kafka.streams.state.WindowStore;
  import org.apache.kafka.streams.state.WindowStoreIterator;
  
  import java.time.Instant;
  
  import static org.apache.kafka.streams.state.TimestampedBytesStore.convertToTimestampedFormat;
  import static org.apache.kafka.streams.state.internals.ValueAndTimestampDeserializer.rawValue;
  
  class WindowToTimestampedWindowByteStoreAdapter implements WindowStore<Bytes, byte[]> {
      final WindowStore<Bytes, byte[]> store;
  
      WindowToTimestampedWindowByteStoreAdapter(final WindowStore<Bytes, byte[]> store) {
          if (!store.persistent()) {
              throw new IllegalArgumentException("Provided store must be a persistent store, but it is not.");
          }
          this.store = store;
      }
  
      @Override
      public void put(final Bytes key,
                      final byte[] valueWithTimestamp,
                      final long windowStartTimestamp) {
          store.put(key, rawValue(valueWithTimestamp), windowStartTimestamp);
      }
  
      @Override
      public byte[] fetch(final Bytes key,
                          final long time) {
          return convertToTimestampedFormat(store.fetch(key, time));
      }
  
      @Override
      public WindowStoreIterator<byte[]> fetch(final Bytes key,
                                               final long timeFrom,
                                               final long timeTo) {
          return new WindowToTimestampedWindowIteratorAdapter(store.fetch(key, timeFrom, timeTo));
      }
  
      @Override
      public WindowStoreIterator<byte[]> fetch(final Bytes key,
                                               final Instant timeFrom,
                                               final Instant timeTo) throws IllegalArgumentException {
          return new WindowToTimestampedWindowIteratorAdapter(store.fetch(key, timeFrom, timeTo));
      }
  
      @Override
      public WindowStoreIterator<byte[]> backwardFetch(final Bytes key,
                                                       final long timeFrom,
                                                       final long timeTo) {
          return new WindowToTimestampedWindowIteratorAdapter(store.backwardFetch(key, timeFrom, timeTo));
      }
  
      @Override
      public WindowStoreIterator<byte[]> backwardFetch(final Bytes key,
                                                       final Instant timeFrom,
                                                       final Instant timeTo) throws IllegalArgumentException {
          return new WindowToTimestampedWindowIteratorAdapter(store.backwardFetch(key, timeFrom, timeTo));
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> fetch(final Bytes keyFrom,
                                                             final Bytes keyTo,
                                                             final long timeFrom,
                                                             final long timeTo) {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.fetch(keyFrom, keyTo, timeFrom, timeTo));
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> backwardFetch(final Bytes keyFrom,
                                                                     final Bytes keyTo,
                                                                     final Instant timeFrom,
                                                                     final Instant timeTo) throws IllegalArgumentException {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardFetch(keyFrom, keyTo, timeFrom, timeTo));
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> fetch(final Bytes keyFrom,
                                                             final Bytes keyTo,
                                                             final Instant timeFrom,
                                                             final Instant timeTo)  throws IllegalArgumentException {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.fetch(keyFrom, keyTo, timeFrom, timeTo));
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> backwardFetch(final Bytes keyFrom,
                                                                     final Bytes keyTo,
                                                                     final long timeFrom,
                                                                     final long timeTo) {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardFetch(keyFrom, keyTo, timeFrom, timeTo));
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> all() {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.all());
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> backwardAll() {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardAll());
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> fetchAll(final long timeFrom,
                                                                final long timeTo) {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.fetchAll(timeFrom, timeTo));
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> fetchAll(final Instant timeFrom,
                                                                final Instant timeTo) throws IllegalArgumentException {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.fetchAll(timeFrom, timeTo));
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> backwardFetchAll(final long timeFrom, final long timeTo) {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardFetchAll(timeFrom, timeTo));
      }
  
      @Override
      public KeyValueIterator<Windowed<Bytes>, byte[]> backwardFetchAll(final Instant timeFrom,
                                                                        final Instant timeTo) throws IllegalArgumentException {
          return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardFetchAll(timeFrom, timeTo));
      }
  
      @Override
      public String name() {
          return store.name();
      }
  
      @Override
      public void init(final StateStoreContext stateStoreContext, final StateStore root) {
          store.init(stateStoreContext, root);
      }
  
      @Override
      public void flush() {
          store.flush();
      }
  
      @Override
      public void close() {
          store.close();
      }
  
      @Override
      public boolean persistent() {
          return true;
      }
  
      @Override
      public boolean isOpen() {
          return store.isOpen();
      }
  
      @Override
      public <R> QueryResult<R> query(
          final Query<R> query,
          final PositionBound positionBound,
          final QueryConfig config) {
  
          final long start = config.isCollectExecutionInfo() ? System.nanoTime() : -1L;
          final QueryResult<R> result = store.query(query, positionBound, config);
          if (config.isCollectExecutionInfo()) {
              final long end = System.nanoTime();
              result.addExecutionInfo(
                  "Handled in " + getClass() + " in " + (end - start) + "ns"
              );
          }
          return result;
      }
  
      @Override
      public Position getPosition() {
          return store.getPosition();
      }
  
  
      private static class WindowToTimestampedWindowIteratorAdapter
          extends KeyValueToTimestampedKeyValueIteratorAdapter<Long>
          implements WindowStoreIterator<byte[]> {
  
          WindowToTimestampedWindowIteratorAdapter(final KeyValueIterator<Long, byte[]> innerIterator) {
              super(innerIterator);
          }
      }
  
  }