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.bookkeeper.bookie.storage.ldb;
  
  import io.netty.util.Recycler;
  import io.netty.util.Recycler.Handle;
  
  /**
   * Recyclable wrapper that holds a pair of longs.
   */
  class LongPairWrapper {
  
      final byte[] array = new byte[16];
  
      public void set(long first, long second) {
          ArrayUtil.setLong(array, 0, first);
          ArrayUtil.setLong(array, 8, second);
      }
  
      public long getFirst() {
          return ArrayUtil.getLong(array, 0);
      }
  
      public long getSecond() {
          return ArrayUtil.getLong(array, 8);
      }
  
      public static LongPairWrapper get(long first, long second) {
          LongPairWrapper lp = RECYCLER.get();
          ArrayUtil.setLong(lp.array, 0, first);
          ArrayUtil.setLong(lp.array, 8, second);
          return lp;
      }
  
      public void recycle() {
          handle.recycle(this);
      }
  
      private static final Recycler<LongPairWrapper> RECYCLER = new Recycler<LongPairWrapper>() {
          @Override
          protected LongPairWrapper newObject(Handle<LongPairWrapper> handle) {
              return new LongPairWrapper(handle);
          }
      };
  
      private final Handle<LongPairWrapper> handle;
  
      private LongPairWrapper(Handle<LongPairWrapper> handle) {
          this.handle = handle;
      }
  }