| /* |
| |
| * 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.hyracks.storage.am.common.util; |
| |
| public class BitOperationUtils { |
| private BitOperationUtils() { |
| } |
| |
| public static void setBit(byte[] targetBuf, int targetOff, byte bitPosition) { |
| targetBuf[targetOff] = (byte) (targetBuf[targetOff] | (1 << bitPosition)); |
| } |
| |
| public static boolean getBit(byte[] targetBuf, int targetOff, byte bitPosition) { |
| return (byte) (targetBuf[targetOff] & (1 << bitPosition)) != 0; |
| } |
| |
| public static int getFlagBytes(int numFlags) { |
| return (int) Math.ceil((double) numFlags / 8.0); |
| } |
| } |
