| /* |
| * 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.fluo.accumulo.util; |
| |
| import com.google.common.base.Preconditions; |
| import org.apache.accumulo.core.data.Key; |
| |
| public class ReadLockUtil { |
| private static final long DEL_MASK = 0x0000000000000001L; |
| |
| public static boolean isDelete(Key k) { |
| return isDelete(k.getTimestamp()); |
| } |
| |
| public static boolean isDelete(long ts) { |
| return (ts & DEL_MASK) == DEL_MASK; |
| } |
| |
| public static long encodeTs(long ts, boolean isDelete) { |
| Preconditions.checkArgument((ts & ColumnConstants.PREFIX_MASK) == 0); |
| return ts << 1 | (isDelete ? 1 : 0); |
| } |
| |
| public static long decodeTs(Key k) { |
| return decodeTs(k.getTimestamp()); |
| } |
| |
| public static long decodeTs(long ts) { |
| return ts >> 1; |
| } |
| } |