001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase;
019
020import java.nio.ByteBuffer;
021import org.apache.hadoop.hbase.util.ByteBufferUtils;
022import org.apache.yetus.audience.InterfaceAudience;
023
024/**
025 * An extension of the ByteBufferKeyValue where the tags length is always 0
026 */
027@InterfaceAudience.Private
028public class NoTagsByteBufferKeyValue extends ByteBufferKeyValue {
029
030  public NoTagsByteBufferKeyValue(ByteBuffer buf, int offset, int length) {
031    super(buf, offset, length);
032  }
033
034  public NoTagsByteBufferKeyValue(ByteBuffer buf, int offset, int length, long seqId) {
035    super(buf, offset, length, seqId);
036  }
037
038  @Override
039  public byte[] getTagsArray() {
040    return HConstants.EMPTY_BYTE_ARRAY;
041  }
042
043  @Override
044  public int getTagsLength() {
045    return 0;
046  }
047
048  @Override
049  public int getSerializedSize(boolean withTags) {
050    return this.length;
051  }
052
053  @Override
054  public ExtendedCell deepClone() {
055    byte[] copy = new byte[this.length];
056    ByteBufferUtils.copyFromBufferToArray(copy, this.buf, this.offset, 0, this.length);
057    KeyValue kv = new NoTagsKeyValue(copy, 0, copy.length);
058    kv.setSequenceId(this.getSequenceId());
059    return kv;
060  }
061}