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.header.Headers;
  import org.apache.kafka.common.header.internals.RecordHeaders;
  import org.apache.kafka.streams.processor.internals.ProcessorRecordContext;
  
  import java.util.Objects;
  
  /**
   * A cache entry
   */
  class LRUCacheEntry {
      private final ContextualRecord record;
      private final long sizeBytes;
      private boolean isDirty;
  
  
      LRUCacheEntry(final byte[] value) {
          this(value, new RecordHeaders(), false, -1, -1, -1, "", null, null);
      }
  
      LRUCacheEntry(final byte[] value,
                    final Headers headers,
                    final boolean isDirty,
                    final long offset,
                    final long timestamp,
                    final int partition,
                    final String topic,
                    final byte[] rawKey,
                    final byte[] rawValue) {
          final ProcessorRecordContext context = new ProcessorRecordContext(
              timestamp,
              offset,
              partition,
              topic,
              headers,
              rawKey,
              rawValue
          );
  
          this.record = new ContextualRecord(
              value,
              context
          );
  
          this.isDirty = isDirty;
          this.sizeBytes = 1 + // isDirty
              record.residentMemorySizeEstimate();
      }
  
      void markClean() {
          isDirty = false;
      }
  
      boolean isDirty() {
          return isDirty;
      }
  
      long size() {
          return sizeBytes;
      }
  
      byte[] value() {
          return record.value();
      }
  
      public ProcessorRecordContext context() {
          return record.recordContext();
      }
  
      @Override
      public boolean equals(final Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
          final LRUCacheEntry that = (LRUCacheEntry) o;
          return sizeBytes == that.sizeBytes &&
              isDirty() == that.isDirty() &&
              Objects.equals(record, that.record);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(record, sizeBytes, isDirty());
      }
  }
  