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.terminal.impl;
019
020import java.util.concurrent.TimeUnit;
021
022import org.apache.hadoop.hbase.hbtop.terminal.KeyPress;
023import org.apache.hadoop.hbase.hbtop.terminal.Terminal;
024
025
026public final class TestKeyPress {
027
028  private TestKeyPress() {
029  }
030
031  public static void main(String[] args) throws Exception {
032    try (Terminal terminal = new TerminalImpl()) {
033      terminal.hideCursor();
034      terminal.refresh();
035
036      while (true) {
037        KeyPress keyPress = terminal.pollKeyPress();
038        if (keyPress == null) {
039          TimeUnit.MILLISECONDS.sleep(100);
040          continue;
041        }
042
043        terminal.getTerminalPrinter(0).print(keyPress.toString()).endOfLine();
044        terminal.refresh();
045
046        if (keyPress.getType() == KeyPress.Type.F12) {
047          break;
048        }
049      }
050    }
051  }
052}