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.camel.component.wal;
  
  /**
   * Represents a single entry in the log of transactions
   */
  class LogEntry {
      public enum EntryState {
          IGNORED(-1),
          NEW(1),
          PROCESSED(10),
          FAILED(20);
  
          private final int code;
  
          EntryState(int code) {
              this.code = code;
          }
  
          public int getCode() {
              return code;
          }
  
          public static EntryState fromInt(int value) {
              switch (value) {
                  case -1:
                      return IGNORED;
                  case 1:
                      return NEW;
                  case 10:
                      return PROCESSED;
                  case 20:
                      return FAILED;
                  default:
                      throw new IllegalArgumentException("Invalid state with value " + value);
              }
          }
  
      }
  
      private EntryState entryState;
      private int keyMetadata;
      private final byte[] key;
      private int valueMetadata;
      private final byte[] value;
  
      LogEntry(EntryState entryState, int keyMetadata, byte[] key, int valueMetadata, byte[] value) {
          this.entryState = entryState;
          this.keyMetadata = keyMetadata;
          this.key = key;
          this.valueMetadata = valueMetadata;
          this.value = value;
      }
  
      public EntryState getEntryState() {
          return entryState;
      }
  
      public int getKeyMetadata() {
          return keyMetadata;
      }
  
      public void setKeyMetadata(int keyMetadata) {
          this.keyMetadata = keyMetadata;
      }
  
      public int getValueMetadata() {
          return valueMetadata;
      }
  
      public void setValueMetadata(int valueMetadata) {
          this.valueMetadata = valueMetadata;
      }
  
      public byte[] getKey() {
          return key;
      }
  
      public byte[] getValue() {
          return value;
      }
  
      public void setEntryState(EntryState entryState) {
          this.entryState = entryState;
      }
  
      /**
       * Returns the size of this record (sum of the sizes of: entry state, key metadata, key length, key, value metadata,
       * value length and value)
       *
       * @return the size in bytes
       */
      public int size() {
          return size(key, value);
      }
  
      /**
       * Returns the size of a record (sum of the sizes of: entry state, key metadata, key length, key, value metadata,
       * value length and value)
       *
       * @param  key   the entry key
       * @param  value the entry value
       * @return       the size in bytes
       */
      public static int size(byte[] key, byte[] value) {
          return Integer.BYTES + Integer.BYTES + Integer.BYTES + key.length + Integer.BYTES + Integer.BYTES + value.length;
      }
  }
  