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.terminal.impl;
19
20 import java.util.concurrent.TimeUnit;
21
22 import org.apache.hadoop.hbase.hbtop.terminal.KeyPress;
23 import org.apache.hadoop.hbase.hbtop.terminal.Terminal;
24
25
26 public final class TestKeyPress {
27
28 private TestKeyPress() {
29 }
30
31 public static void main(String[] args) throws Exception {
32 try (Terminal terminal = new TerminalImpl()) {
33 terminal.hideCursor();
34 terminal.refresh();
35
36 while (true) {
37 KeyPress keyPress = terminal.pollKeyPress();
38 if (keyPress == null) {
39 TimeUnit.MILLISECONDS.sleep(100);
40 continue;
41 }
42
43 terminal.getTerminalPrinter(0).print(keyPress.toString()).endOfLine();
44 terminal.refresh();
45
46 if (keyPress.getType() == KeyPress.Type.F12) {
47 break;
48 }
49 }
50 }
51 }
52 }