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