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.common.protocol;
  
  import java.util.IdentityHashMap;
  
  /**
   * The ObjectSerializationCache stores sizes and values computed during the
   * first serialization pass.  This avoids recalculating and recomputing the same
   * values during the second pass.
   *
   * It is intended to be used as part of a two-pass serialization process like:
   * ObjectSerializationCache cache = new ObjectSerializationCache();
   * message.size(version, cache);
   * message.write(version, cache);
   */
  public final class ObjectSerializationCache {
      private final IdentityHashMap<Object, Object> map;
  
      public ObjectSerializationCache() {
          this.map = new IdentityHashMap<>();
      }
  
      public void setArraySizeInBytes(Object o, Integer size) {
          map.put(o, size);
      }
  
      public Integer getArraySizeInBytes(Object o) {
          return (Integer) map.get(o);
      }
  
      public void cacheSerializedValue(Object o, byte[] val) {
          map.put(o, val);
      }
  
      public byte[] getSerializedValue(Object o) {
          Object value = map.get(o);
          return (byte[]) value;
      }
  }
  