UnsafeUtil.java

/**
 * 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.blur.store.util;

import java.lang.reflect.Field;

import sun.misc.Unsafe;

public class UnsafeUtil {
  private static final String JAVA_NIO_BITS = "java.nio.Bits";
  private static final Unsafe _unsafe;

  static {
    try {
      Class<?> clazz = Class.forName(JAVA_NIO_BITS);
      Field field = clazz.getDeclaredField("unsafe");
      field.setAccessible(true);
      _unsafe = (Unsafe) field.get(null);
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

  public static Unsafe getUnsafe() {
    return _unsafe;
  }

}