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.quotas;
019
020import static org.mockito.Matchers.argThat;
021import static org.mockito.Mockito.mock;
022import static org.mockito.Mockito.verify;
023import static org.mockito.Mockito.when;
024
025import java.util.Arrays;
026import java.util.List;
027import java.util.Map.Entry;
028import java.util.NavigableMap;
029import java.util.Objects;
030import org.apache.hadoop.hbase.Cell;
031import org.apache.hadoop.hbase.HBaseClassTestRule;
032import org.apache.hadoop.hbase.TableName;
033import org.apache.hadoop.hbase.client.Connection;
034import org.apache.hadoop.hbase.client.Mutation;
035import org.apache.hadoop.hbase.client.Put;
036import org.apache.hadoop.hbase.client.Table;
037import org.apache.hadoop.hbase.quotas.SpaceQuotaSnapshot.SpaceQuotaStatus;
038import org.apache.hadoop.hbase.testclassification.SmallTests;
039import org.apache.hadoop.hbase.util.Bytes;
040import org.junit.Before;
041import org.junit.ClassRule;
042import org.junit.Test;
043import org.junit.experimental.categories.Category;
044import org.mockito.ArgumentMatcher;
045
046import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos;
047
048/**
049 * Test case for {@link TableSpaceQuotaSnapshotNotifier}.
050 */
051@Category(SmallTests.class)
052public class TestTableSpaceQuotaViolationNotifier {
053
054  @ClassRule
055  public static final HBaseClassTestRule CLASS_RULE =
056    HBaseClassTestRule.forClass(TestTableSpaceQuotaViolationNotifier.class);
057
058  private TableSpaceQuotaSnapshotNotifier notifier;
059  private Connection conn;
060
061  @Before
062  public void setup() throws Exception {
063    notifier = new TableSpaceQuotaSnapshotNotifier();
064    conn = mock(Connection.class);
065    notifier.initialize(conn);
066  }
067
068  @Test
069  public void testToViolation() throws Exception {
070    final TableName tn = TableName.valueOf("inviolation");
071    final SpaceQuotaSnapshot snapshot =
072      new SpaceQuotaSnapshot(new SpaceQuotaStatus(SpaceViolationPolicy.NO_INSERTS), 1024L, 512L);
073    final Table quotaTable = mock(Table.class);
074    when(conn.getTable(QuotaTableUtil.QUOTA_TABLE_NAME)).thenReturn(quotaTable);
075
076    final Put expectedPut = new Put(Bytes.toBytes("t." + tn.getNameAsString()));
077    final QuotaProtos.SpaceQuotaSnapshot protoQuota = QuotaProtos.SpaceQuotaSnapshot.newBuilder()
078      .setQuotaStatus(QuotaProtos.SpaceQuotaStatus.newBuilder().setInViolation(true)
079        .setViolationPolicy(QuotaProtos.SpaceViolationPolicy.NO_INSERTS))
080      .setQuotaLimit(512L).setQuotaUsage(1024L).build();
081    expectedPut.addColumn(Bytes.toBytes("u"), Bytes.toBytes("p"), protoQuota.toByteArray());
082
083    notifier.transitionTable(tn, snapshot);
084
085    verify(quotaTable).put(argThat(new SingleCellMutationMatcher<Put>(expectedPut)));
086  }
087
088  /**
089   * Quick hack to verify a Mutation with one column.
090   */
091  final private static class SingleCellMutationMatcher<T> implements ArgumentMatcher<T> {
092    private final Mutation expected;
093
094    private SingleCellMutationMatcher(Mutation expected) {
095      this.expected = expected;
096    }
097
098    @Override
099    public boolean matches(T argument) {
100      if (!expected.getClass().isAssignableFrom(argument.getClass())) {
101        return false;
102      }
103      Mutation actual = (Mutation) argument;
104      if (!Arrays.equals(expected.getRow(), actual.getRow())) {
105        return false;
106      }
107      if (expected.size() != actual.size()) {
108        return false;
109      }
110      NavigableMap<byte[], List<Cell>> expectedCells = expected.getFamilyCellMap();
111      NavigableMap<byte[], List<Cell>> actualCells = actual.getFamilyCellMap();
112      Entry<byte[], List<Cell>> expectedEntry = expectedCells.entrySet().iterator().next();
113      Entry<byte[], List<Cell>> actualEntry = actualCells.entrySet().iterator().next();
114      if (!Arrays.equals(expectedEntry.getKey(), actualEntry.getKey())) {
115        return false;
116      }
117      return Objects.equals(expectedEntry.getValue(), actualEntry.getValue());
118    }
119  }
120}