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.state.SessionBytesStoreSupplier;
  import org.apache.kafka.streams.state.SessionStore;
  
  public class RocksDbTimeOrderedSessionBytesStoreSupplier implements SessionBytesStoreSupplier {
      private final String name;
      private final long retentionPeriod;
      private final boolean withIndex;
  
      public RocksDbTimeOrderedSessionBytesStoreSupplier(final String name,
                                                         final long retentionPeriod,
                                                         final boolean withIndex) {
          this.name = name;
          this.retentionPeriod = retentionPeriod;
          this.withIndex = withIndex;
      }
  
      @Override
      public String name() {
          return name;
      }
  
      @Override
      public SessionStore<Bytes, byte[]> get() {
          return new RocksDBTimeOrderedSessionStore(
              new RocksDBTimeOrderedSessionSegmentedBytesStore(
                  name,
                  metricsScope(),
                  retentionPeriod,
                  segmentIntervalMs(),
                  withIndex
              )
          );
      }
  
      @Override
      public String metricsScope() {
          return "rocksdb-session";
      }
  
      @Override
      public long segmentIntervalMs() {
          // Selected somewhat arbitrarily. Profiling may reveal a different value is preferable.
          return Math.max(retentionPeriod / 2, 60_000L);
      }
  
      @Override
      public long retentionPeriod() {
          return retentionPeriod;
      }
  }
  