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 * The interface responsible for printing to the terminal.
024 */
025@InterfaceAudience.Private
026public interface TerminalPrinter {
027  TerminalPrinter print(String value);
028
029  default TerminalPrinter print(Object value) {
030    print(value.toString());
031    return this;
032  }
033
034  default TerminalPrinter print(char value) {
035    print(Character.toString(value));
036    return this;
037  }
038
039  default TerminalPrinter print(short value) {
040    print(Short.toString(value));
041    return this;
042  }
043
044  default TerminalPrinter print(int value) {
045    print(Integer.toString(value));
046    return this;
047  }
048
049  default TerminalPrinter print(long value) {
050    print(Long.toString(value));
051    return this;
052  }
053
054  default TerminalPrinter print(float value) {
055    print(Float.toString(value));
056    return this;
057  }
058
059  default TerminalPrinter print(double value) {
060    print(Double.toString(value));
061    return this;
062  }
063
064  @SuppressWarnings("AnnotateFormatMethod")
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}