ceph/src/arrow/java/memory/memory-core/src/main/java/org/apache/arrow/memory/util/AutoCloseableLock.java

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one or more
   3  * contributor license agreements.  See the NOTICE file distributed with
   4  * this work for additional information regarding copyright ownership.
   5  * The ASF licenses this file to You under the Apache License, Version 2.0
   6  * (the "License"); you may not use this file except in compliance with
   7  * the License.  You may obtain a copy of the License at
   8  *
   9  *    http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 package org.apache.arrow.memory.util;
  19
  20 import java.util.concurrent.locks.Lock;
  21
  22 /**
  23  * Simple wrapper class that allows Locks to be released via a try-with-resources block.
  24  */
  25 public class AutoCloseableLock implements AutoCloseable {
  26
  27   private final Lock lock;
  28
  29   public AutoCloseableLock(Lock lock) {
  30     this.lock = lock;
  31   }
  32
  33   public AutoCloseableLock open() {
  34     lock.lock();
  35     return this;
  36   }
  37
  38   @Override
  39   public void close() {
  40     lock.unlock();
  41   }
  42
  43 }