| /** |
| * |
| * 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; |
| } |
| } |