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.hbtop.mode;
019
020import java.util.Arrays;
021import java.util.List;
022import java.util.stream.Collectors;
023import java.util.stream.Stream;
024import org.apache.hadoop.hbase.ClusterMetrics;
025import org.apache.hadoop.hbase.TableName;
026import org.apache.hadoop.hbase.hbtop.Record;
027import org.apache.hadoop.hbase.hbtop.RecordFilter;
028import org.apache.hadoop.hbase.hbtop.field.Field;
029import org.apache.hadoop.hbase.hbtop.field.FieldInfo;
030import org.apache.yetus.audience.InterfaceAudience;
031
032/**
033 * Implementation for {@link ModeStrategy} for Table Mode.
034 */
035@InterfaceAudience.Private
036public final class TableModeStrategy implements ModeStrategy {
037
038  private final List<FieldInfo> fieldInfos = Arrays.asList(new FieldInfo(Field.NAMESPACE, 0, true),
039    new FieldInfo(Field.TABLE, 0, true), new FieldInfo(Field.REGION_COUNT, 7, true),
040    new FieldInfo(Field.REQUEST_COUNT_PER_SECOND, 10, true),
041    new FieldInfo(Field.READ_REQUEST_COUNT_PER_SECOND, 10, true),
042    new FieldInfo(Field.FILTERED_READ_REQUEST_COUNT_PER_SECOND, 8, true),
043    new FieldInfo(Field.WRITE_REQUEST_COUNT_PER_SECOND, 10, true),
044    new FieldInfo(Field.STORE_FILE_SIZE, 13, true),
045    new FieldInfo(Field.UNCOMPRESSED_STORE_FILE_SIZE, 15, false),
046    new FieldInfo(Field.NUM_STORE_FILES, 7, true), new FieldInfo(Field.MEM_STORE_SIZE, 11, true));
047
048  private final RegionModeStrategy regionModeStrategy = new RegionModeStrategy();
049
050  TableModeStrategy() {
051  }
052
053  @Override
054  public List<FieldInfo> getFieldInfos() {
055    return fieldInfos;
056  }
057
058  @Override
059  public Field getDefaultSortField() {
060    return Field.REQUEST_COUNT_PER_SECOND;
061  }
062
063  @Override
064  public List<Record> getRecords(ClusterMetrics clusterMetrics,
065    List<RecordFilter> pushDownFilters) {
066    // Get records from RegionModeStrategy and add REGION_COUNT field
067    List<Record> records = regionModeStrategy.selectModeFieldsAndAddCountField(fieldInfos,
068      regionModeStrategy.getRecords(clusterMetrics, pushDownFilters), Field.REGION_COUNT);
069
070    // Aggregation by NAMESPACE field and TABLE field
071    return records.stream().collect(Collectors.groupingBy(r -> {
072      String namespace = r.get(Field.NAMESPACE).asString();
073      String table = r.get(Field.TABLE).asString();
074      return TableName.valueOf(namespace, table);
075    })).entrySet().stream()
076      .flatMap(
077        e -> e.getValue().stream().reduce(Record::combine).map(Stream::of).orElse(Stream.empty()))
078      .collect(Collectors.toList());
079  }
080
081  @Override
082  public DrillDownInfo drillDown(Record selectedRecord) {
083    List<RecordFilter> initialFilters = Arrays.asList(
084      RecordFilter.newBuilder(Field.NAMESPACE).doubleEquals(selectedRecord.get(Field.NAMESPACE)),
085      RecordFilter.newBuilder(Field.TABLE).doubleEquals(selectedRecord.get(Field.TABLE)));
086    return new DrillDownInfo(Mode.REGION, initialFilters);
087  }
088}