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.client;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021
022import java.util.Arrays;
023import org.apache.hadoop.hbase.TableName;
024import org.apache.hadoop.hbase.client.TableDescriptorUtils.TableDescriptorDelta;
025import org.apache.hadoop.hbase.testclassification.SmallTests;
026import org.apache.hadoop.hbase.util.Bytes;
027import org.junit.jupiter.api.Tag;
028import org.junit.jupiter.api.Test;
029
030@Tag(SmallTests.TAG)
031public class TestTableDescriptorUtils {
032
033  @Test
034  public void testDelta() {
035    ColumnFamilyDescriptor cf1 = ColumnFamilyDescriptorBuilder.of("cf1");
036    ColumnFamilyDescriptor cf2 = ColumnFamilyDescriptorBuilder.of("cf2");
037    ColumnFamilyDescriptor cf3 = ColumnFamilyDescriptorBuilder.of("cf3");
038    ColumnFamilyDescriptor cf4 = ColumnFamilyDescriptorBuilder.of("cf4");
039    TableDescriptor td = TableDescriptorBuilder.newBuilder(TableName.valueOf("test"))
040      .setColumnFamilies(Arrays.asList(cf1, cf2, cf3, cf4)).build();
041
042    TableDescriptorDelta selfCompare = TableDescriptorUtils.computeDelta(td, td);
043    assertEquals(0, selfCompare.getColumnsAdded().size());
044    assertEquals(0, selfCompare.getColumnsDeleted().size());
045    assertEquals(0, selfCompare.getColumnsModified().size());
046
047    ColumnFamilyDescriptor modCf2 =
048      ColumnFamilyDescriptorBuilder.newBuilder(cf2).setMaxVersions(5).build();
049    ColumnFamilyDescriptor modCf3 =
050      ColumnFamilyDescriptorBuilder.newBuilder(cf3).setMaxVersions(5).build();
051    ColumnFamilyDescriptor cf5 = ColumnFamilyDescriptorBuilder.of("cf5");
052    ColumnFamilyDescriptor cf6 = ColumnFamilyDescriptorBuilder.of("cf6");
053    ColumnFamilyDescriptor cf7 = ColumnFamilyDescriptorBuilder.of("cf7");
054    TableDescriptor newTd =
055      TableDescriptorBuilder.newBuilder(td).removeColumnFamily(Bytes.toBytes("cf1"))
056        .modifyColumnFamily(modCf2).modifyColumnFamily(modCf3).setColumnFamily(cf5)
057        .setColumnFamily(cf6).setColumnFamily(cf7).build();
058
059    TableDescriptorDelta delta = TableDescriptorUtils.computeDelta(td, newTd);
060
061    assertEquals(3, delta.getColumnsAdded().size());
062    assertEquals(1, delta.getColumnsDeleted().size());
063    assertEquals(2, delta.getColumnsModified().size());
064
065    TableDescriptorDelta inverseDelta = TableDescriptorUtils.computeDelta(newTd, td);
066
067    // Equality here relies on implementation detail of the returned Set being a TreeSet
068    assertEquals(delta.getColumnsDeleted(), inverseDelta.getColumnsAdded());
069    assertEquals(delta.getColumnsAdded(), inverseDelta.getColumnsDeleted());
070    assertEquals(delta.getColumnsModified(), inverseDelta.getColumnsModified());
071  }
072}