1 /**
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package org.apache.hadoop.hbase.hbtop.mode;
19
20 import java.util.ArrayList;
21 import java.util.Collections;
22 import java.util.List;
23 import java.util.Objects;
24
25 import org.apache.hadoop.hbase.classification.InterfaceAudience;
26 import org.apache.hadoop.hbase.hbtop.RecordFilter;
27
28 /**
29 * Information about drilling down.
30 *
31 * When drilling down, going to next {@link Mode} with initial {@link RecordFilter}s.
32 */
33 @InterfaceAudience.Private
34 public class DrillDownInfo {
35 private final Mode nextMode;
36 private final List<RecordFilter> initialFilters;
37
38 public DrillDownInfo(Mode nextMode, List<RecordFilter> initialFilters) {
39 this.nextMode = Objects.requireNonNull(nextMode);
40 this.initialFilters = Collections.unmodifiableList(new ArrayList<>(initialFilters));
41 }
42
43 public Mode getNextMode() {
44 return nextMode;
45 }
46
47 public List<RecordFilter> getInitialFilters() {
48 return initialFilters;
49 }
50 }