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 static org.junit.jupiter.api.Assertions.assertTrue;
021
022import org.apache.hadoop.hbase.io.HeapSize;
023import org.apache.hadoop.hbase.testclassification.SmallTests;
024import org.apache.hadoop.hbase.util.Bytes;
025import org.junit.jupiter.api.Tag;
026import org.junit.jupiter.api.Test;
027
028@Tag(SmallTests.TAG)
029public class TestTagRewriteCell {
030
031  @Test
032  public void testHeapSize() {
033    ExtendedCell originalCell = ExtendedCellBuilderFactory.create(CellBuilderType.DEEP_COPY)
034      .setRow(Bytes.toBytes("row")).setFamily(HConstants.EMPTY_BYTE_ARRAY)
035      .setQualifier(HConstants.EMPTY_BYTE_ARRAY).setTimestamp(HConstants.LATEST_TIMESTAMP)
036      .setType(KeyValue.Type.Maximum.getCode()).setValue(Bytes.toBytes("value")).build();
037    final int fakeTagArrayLength = 10;
038    ExtendedCell trCell = PrivateCellUtil.createCell(originalCell, new byte[fakeTagArrayLength]);
039
040    // Get the heapSize before the internal tags array in trCell are nuked
041    long trCellHeapSize = ((HeapSize) trCell).heapSize();
042
043    // Make another TagRewriteCell with the original TagRewriteCell
044    // This happens on systems with more than one RegionObserver/Coproc loaded (such as
045    // VisibilityController and AccessController)
046    ExtendedCell trCell2 = PrivateCellUtil.createCell(trCell, new byte[fakeTagArrayLength]);
047
048    assertTrue(trCellHeapSize < ((HeapSize) trCell2).heapSize(),
049      "TagRewriteCell containing a TagRewriteCell's heapsize should be "
050        + "larger than a single TagRewriteCell's heapsize");
051    assertTrue(((HeapSize) trCell).heapSize() < trCellHeapSize,
052      "TagRewriteCell should have had nulled out tags array");
053  }
054}