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;
019
020import org.apache.yetus.audience.InterfaceAudience;
021
022
023/**
024 * The interface responsible for printing to the terminal.
025 */
026@InterfaceAudience.Private
027public interface TerminalPrinter {
028  TerminalPrinter print(String value);
029
030  default TerminalPrinter print(Object value) {
031    print(value.toString());
032    return this;
033  }
034
035  default TerminalPrinter print(char value) {
036    print(Character.toString(value));
037    return this;
038  }
039
040  default TerminalPrinter print(short value) {
041    print(Short.toString(value));
042    return this;
043  }
044
045  default TerminalPrinter print(int value) {
046    print(Integer.toString(value));
047    return this;
048  }
049
050  default TerminalPrinter print(long value) {
051    print(Long.toString(value));
052    return this;
053  }
054
055  default TerminalPrinter print(float value) {
056    print(Float.toString(value));
057    return this;
058  }
059
060  default TerminalPrinter print(double value) {
061    print(Double.toString(value));
062    return this;
063  }
064
065  default TerminalPrinter printFormat(String format, Object... args) {
066    print(String.format(format, args));
067    return this;
068  }
069
070  TerminalPrinter startHighlight();
071
072  TerminalPrinter stopHighlight();
073
074  TerminalPrinter startBold();
075
076  TerminalPrinter stopBold();
077
078  void endOfLine();
079}