[6785] | 1 | /** |
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| 2 | * MailArchiver is an application that provides services for storing and managing e-mail messages through a Web Services SOAP interface. |
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| 3 | * Copyright (C) 2012 Marcio Andre Scholl Levien and Fernando Alberto Reuter Wendt and Jose Ronaldo Nogueira Fonseca Junior |
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| 4 | * |
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| 5 | * This program is free software: you can redistribute it and/or modify |
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| 6 | * it under the terms of the GNU Affero General Public License as |
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| 7 | * published by the Free Software Foundation, either version 3 of the |
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| 8 | * License, or (at your option) any later version. |
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| 9 | * |
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| 10 | * This program is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU Affero General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU Affero General Public License |
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| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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| 17 | */ |
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| 18 | |
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| 19 | /******************************************************************************\ |
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| 20 | * |
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| 21 | * This product was developed by |
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| 22 | * |
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| 23 | * SERVIÃO FEDERAL DE PROCESSAMENTO DE DADOS (SERPRO), |
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| 24 | * |
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| 25 | * a government company established under Brazilian law (5.615/70), |
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| 26 | * at Department of Development of Porto Alegre. |
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| 27 | * |
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| 28 | \******************************************************************************/ |
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| 29 | |
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| 30 | package serpro.mailarchiver.util; |
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| 31 | |
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| 32 | import java.io.ByteArrayOutputStream; |
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| 33 | import java.io.IOException; |
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| 34 | import java.io.PrintStream; |
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| 35 | import java.io.Reader; |
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| 36 | import java.io.UnsupportedEncodingException; |
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| 37 | import java.util.Set; |
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| 38 | import java.util.TreeSet; |
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| 39 | |
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| 40 | import javax.annotation.PostConstruct; |
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| 41 | |
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| 42 | import bsh.ConsoleInterface; |
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| 43 | |
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| 44 | import com.eventrouter.annotation.AnnotationProcessor; |
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| 45 | import com.eventrouter.annotation.Subscribe; |
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| 46 | import com.eventrouter.SubscriptionRegistry; |
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| 47 | |
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| 48 | import org.springframework.beans.factory.annotation.Configurable; |
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| 49 | |
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| 50 | import org.vaadin.console.Console; |
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| 51 | import org.vaadin.console.Console.Command; |
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| 52 | |
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| 53 | import serpro.mailarchiver.view.BaseApplication; |
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| 54 | |
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| 55 | @Configurable |
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| 56 | public class ConsoleMediator implements ConsoleInterface, Console.Handler { |
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| 57 | |
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| 58 | private static final Logger log = Logger.getLocalLogger(); |
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| 59 | |
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| 60 | @PostConstruct |
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| 61 | private void postConstruct() { |
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| 62 | SubscriptionRegistry subscriptionRegistry = BaseApplication.getInstance().getDispatchContext().getSubscriptionRegistry(); |
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| 63 | AnnotationProcessor processor = new AnnotationProcessor(subscriptionRegistry); |
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| 64 | processor.process(this); |
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| 65 | } |
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| 66 | |
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| 67 | private static final long serialVersionUID = 1L; |
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| 68 | |
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| 69 | private static final String ENTER = System.getProperty("line.separator"); |
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| 70 | private static final String EOT = new String(new char[] {'\004'}); |
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| 71 | private static final String LF = new String(new char[] {'\012'}); |
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| 72 | private static final String CR = new String(new char[] {'\015'}); |
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| 73 | private static final String ESC = new String(new char[] {'\033'}); |
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| 74 | |
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| 75 | enum AnsiEsc { |
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| 76 | Reset (0), |
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| 77 | |
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| 78 | FontWeightBolder(1), |
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| 79 | FontWeightNormal(22), |
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| 80 | FontWeightLighter(2), |
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| 81 | FontStyleItalic(3), |
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| 82 | |
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| 83 | TextDecorationUnderline(4), |
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| 84 | TextDecorationUnderlineOff(24), |
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| 85 | TextDecorationBlinkSlow(5), |
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| 86 | TextDecorationBlinkRapid(6), |
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| 87 | TextDecorationBlinkOff(25), |
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| 88 | TextDecorationLineThrough(9), |
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| 89 | TextDecorationLineThroughOff(29), |
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| 90 | TextDecorationOverline(53), |
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| 91 | TextDecorationOverlineOff(55), |
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| 92 | |
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| 93 | ColorBlack(30), |
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| 94 | ColorRed(31), |
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| 95 | ColorGreen(32), |
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| 96 | ColorYellow(33), |
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| 97 | ColorBlue(34), |
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| 98 | ColorPurple(35), |
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| 99 | ColorTeal(36), |
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| 100 | ColorSilver(37), |
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| 101 | |
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| 102 | BackgroundColorBlack(40), |
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| 103 | BackgroundColorRed(41), |
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| 104 | BackgroundColorGreen(42), |
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| 105 | BackgroundColorYellow(43), |
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| 106 | BackgroundColorBlue(44), |
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| 107 | BackgroundColorPurple(45), |
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| 108 | BackgroundColorTeal(46), |
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| 109 | BackgroundColorSilver(47); |
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| 110 | |
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| 111 | @Override |
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| 112 | public String toString() { |
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| 113 | return ESC + '[' + code + 'm'; |
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| 114 | } |
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| 115 | |
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| 116 | private final int code; |
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| 117 | |
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| 118 | AnsiEsc(int code) { |
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| 119 | this.code = code; |
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| 120 | } |
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| 121 | } |
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| 122 | |
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| 123 | private final Console console; |
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| 124 | |
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| 125 | private MyReader interpreterIn; |
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| 126 | |
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| 127 | private PrintStream interpreterOut; |
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| 128 | private PrintStream interpreterErr; |
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| 129 | private ByteArrayOutputStream interpreterOutByteArray; |
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| 130 | private StringBuffer interpreterOutBuffer; |
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| 131 | |
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| 132 | public ConsoleMediator(Console console) { |
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| 133 | |
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| 134 | this.console = console; |
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| 135 | this.console.setConvertANSIToCSS(true); |
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| 136 | this.console.setHandler(this); |
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| 137 | |
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| 138 | interpreterIn = new MyReader(); |
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| 139 | |
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| 140 | interpreterOutByteArray = new ByteArrayOutputStream(); |
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| 141 | interpreterOutBuffer = new StringBuffer(); |
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| 142 | |
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| 143 | try { |
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| 144 | interpreterOut = new PrintStream(interpreterOutByteArray, false, "UTF-8") { |
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| 145 | @Override |
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| 146 | public void flush() { |
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| 147 | super.flush(); |
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| 148 | appendOutput(); |
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| 149 | } |
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| 150 | }; |
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| 151 | interpreterErr = new PrintStream(interpreterOutByteArray, false, "UTF-8") { |
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| 152 | @Override |
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| 153 | public void flush() { |
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| 154 | super.flush(); |
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| 155 | appendOutput(); |
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| 156 | } |
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| 157 | }; |
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| 158 | } |
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| 159 | catch (UnsupportedEncodingException ex) { |
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| 160 | log.error(ex); |
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| 161 | } |
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| 162 | } |
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| 163 | |
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| 164 | |
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| 165 | //<editor-fold defaultstate="collapsed" desc=" Beanshell ConsoleInterface "> |
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| 166 | |
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| 167 | @Override |
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| 168 | public Reader getIn() { |
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| 169 | return interpreterIn; |
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| 170 | } |
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| 171 | |
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| 172 | @Override |
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| 173 | public PrintStream getOut() { |
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| 174 | return interpreterOut; |
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| 175 | } |
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| 176 | |
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| 177 | @Override |
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| 178 | public PrintStream getErr() { |
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| 179 | return interpreterErr; |
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| 180 | } |
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| 181 | |
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| 182 | @Override |
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| 183 | public void println(Object o) { |
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| 184 | String s = String.valueOf(o); |
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| 185 | interpreterOut.print(AnsiEsc.ColorYellow.toString() + s + ENTER); |
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| 186 | interpreterOut.flush(); |
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| 187 | } |
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| 188 | |
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| 189 | @Override |
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| 190 | public void print(Object o) { |
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| 191 | String s = String.valueOf(o); |
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| 192 | if("bsh % ".equals(s)) { |
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| 193 | interpreterOut.print(EOT); |
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| 194 | } |
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| 195 | else { |
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| 196 | interpreterOut.print(AnsiEsc.ColorYellow.toString() + s); |
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| 197 | } |
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| 198 | interpreterOut.flush(); |
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| 199 | } |
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| 200 | |
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| 201 | @Override |
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| 202 | public void error(Object o) { |
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| 203 | String s = String.valueOf(o); |
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| 204 | if(s.endsWith(LF)) { |
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| 205 | s = s.substring(0, s.length() - 1); |
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| 206 | if(s.endsWith(CR)) { |
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| 207 | s = s.substring(0, s.length() - 1); |
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| 208 | } |
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| 209 | } |
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| 210 | interpreterErr.print(AnsiEsc.ColorRed.toString() + s); |
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| 211 | interpreterErr.flush(); |
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| 212 | } |
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| 213 | //</editor-fold> |
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| 214 | |
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| 215 | |
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| 216 | //<editor-fold defaultstate="collapsed" desc=" Vaadin Console.Handler "> |
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| 217 | |
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| 218 | /** |
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| 219 | * Called when user has entered input to the Console and presses enter |
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| 220 | * to execute it. |
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| 221 | */ |
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| 222 | @Override |
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| 223 | public void inputReceived(Console console, String lastInput) { |
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| 224 | boolean run = false; |
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| 225 | if(lastInput.isEmpty()) { |
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| 226 | lastInput = ";"; |
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| 227 | run = true; |
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| 228 | } |
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| 229 | else { |
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| 230 | for(int i = lastInput.length() - 1; i >= 0; i--) { |
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| 231 | char c = lastInput.charAt(i); |
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| 232 | if(Character.isSpaceChar(c)) { |
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| 233 | continue; |
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| 234 | } |
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| 235 | if(c == ';') { |
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| 236 | run = true; |
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| 237 | } |
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| 238 | break; |
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| 239 | } |
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| 240 | } |
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| 241 | |
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| 242 | interpreterIn.put(lastInput + ENTER); |
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| 243 | |
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| 244 | if(!run) { |
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| 245 | console.setPs("> "); |
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| 246 | console.prompt(); |
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| 247 | console.focusInput(); |
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| 248 | } |
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| 249 | } |
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| 250 | |
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| 251 | |
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| 252 | /** |
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| 253 | * Called when user uses TAB to complete the command entered into the |
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| 254 | * Console input. |
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| 255 | */ |
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| 256 | @Override |
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| 257 | public Set<String> getSuggestions(Console console, String lastInput) { |
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| 258 | //TODO ? |
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| 259 | Set<String> suggestions = new TreeSet<String>(); |
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| 260 | return suggestions; |
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| 261 | } |
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| 262 | |
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| 263 | /** |
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| 264 | * Handle an exception during a Command execution. |
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| 265 | */ |
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| 266 | @Override |
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| 267 | public void handleException(Console console, Exception e, Command cmd, String[] argv) { |
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| 268 | //TODO ? |
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| 269 | log.error(e); |
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| 270 | } |
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| 271 | |
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| 272 | /** |
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| 273 | * Handle situation where a command could not be found. |
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| 274 | */ |
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| 275 | @Override |
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| 276 | public void commandNotFound(Console console, String[] argv) { |
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| 277 | //TODO ? |
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| 278 | } |
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| 279 | //</editor-fold> |
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| 280 | |
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| 281 | |
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| 282 | private void appendOutput() { |
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| 283 | if(interpreterOutByteArray.size() > 0) { |
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| 284 | try { |
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| 285 | String content = interpreterOutByteArray.toString("UTF-8"); |
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| 286 | interpreterOutByteArray.reset(); |
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| 287 | if(!content.isEmpty()) { |
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| 288 | interpreterOutBuffer.append(content); |
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| 289 | } |
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| 290 | } |
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| 291 | catch (UnsupportedEncodingException ex) { |
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| 292 | log.error(ex); |
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| 293 | } |
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| 294 | } |
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| 295 | } |
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| 296 | |
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| 297 | @Subscribe({"/mailarchiver/refresh"}) |
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| 298 | private void refresh() { |
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| 299 | if(interpreterOutBuffer.length() > 0) { |
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| 300 | String content = interpreterOutBuffer.toString(); |
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| 301 | interpreterOutBuffer.setLength(0); |
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| 302 | boolean eot = false; |
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| 303 | if(content.endsWith(EOT)) { |
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| 304 | eot = true; |
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| 305 | content = content.substring(0, content.length() - 1); |
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| 306 | if(content.endsWith(LF)) { |
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| 307 | content = content.substring(0, content.length() - 1); |
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| 308 | if(content.endsWith(CR)) { |
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| 309 | content = content.substring(0, content.length() - 1); |
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| 310 | } |
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| 311 | } |
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| 312 | } |
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| 313 | |
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| 314 | if(!content.isEmpty()) { |
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| 315 | console.print(content); |
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| 316 | } |
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| 317 | |
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| 318 | if(eot) { |
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| 319 | console.setPs("{bsh}> "); |
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| 320 | console.prompt(); |
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| 321 | console.focusInput(); |
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| 322 | } |
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| 323 | } |
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| 324 | } |
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| 325 | |
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| 326 | private static class MyReader extends Reader { |
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| 327 | private final StringBuilder buffer = new StringBuilder(); |
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| 328 | |
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| 329 | public void put(String value) { |
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| 330 | synchronized(buffer) { |
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| 331 | buffer.append(value); |
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| 332 | buffer.notifyAll(); |
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| 333 | } |
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| 334 | } |
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| 335 | |
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| 336 | @Override |
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| 337 | public int read(char[] cbuf, int off, int len) throws IOException { |
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| 338 | int n; |
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| 339 | synchronized(buffer) { |
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| 340 | while(buffer.length() == 0) { |
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| 341 | try { |
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| 342 | buffer.wait(); |
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| 343 | } |
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| 344 | catch (InterruptedException ex) { |
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| 345 | log.error(ex); |
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| 346 | } |
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| 347 | } |
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| 348 | n = Math.min(len, buffer.length()); |
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| 349 | for(int i = 0; i < n; i++) { |
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| 350 | cbuf[off++] = buffer.charAt(i); |
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| 351 | } |
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| 352 | buffer.delete(0, n); |
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| 353 | } |
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| 354 | return n; |
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| 355 | } |
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| 356 | |
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| 357 | @Override |
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| 358 | public void close() throws IOException { |
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| 359 | } |
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| 360 | } |
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| 361 | } |
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