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.io.IOException;
021import java.io.OutputStream;
022import org.apache.hadoop.hbase.util.Bytes;
023import org.apache.yetus.audience.InterfaceAudience;
024
025/**
026 * An extension of the KeyValue where the tags length is always 0
027 */
028@InterfaceAudience.Private
029public class NoTagsKeyValue extends KeyValue {
030  public NoTagsKeyValue(byte[] bytes, int offset, int length) {
031    super(bytes, offset, length);
032  }
033
034  @Override
035  public int getTagsLength() {
036    return 0;
037  }
038
039  @Override
040  public int write(OutputStream out, boolean withTags) throws IOException {
041    out.write(this.bytes, this.offset, this.length);
042    return this.length;
043  }
044
045  @Override
046  public int getSerializedSize(boolean withTags) {
047    return this.length;
048  }
049
050  @Override
051  public ExtendedCell deepClone() {
052    byte[] copy = Bytes.copy(this.bytes, this.offset, this.length);
053    KeyValue kv = new NoTagsKeyValue(copy, 0, copy.length);
054    kv.setSequenceId(this.getSequenceId());
055    return kv;
056  }
057}