src/main/java/net/pterodactylus/xdcc/ui/stdin/CommandReader.java

   1 /*
   2  * XdccDownloader - CommandReader.java - Copyright © 2013 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.xdcc.ui.stdin;
  19
  20 import java.io.BufferedReader;
  21 import java.io.Reader;
  22 import java.io.Writer;
  23 import java.util.Collection;
  24 import java.util.Collections;
  25 import java.util.List;
  26 import java.util.Set;
  27
  28 import net.pterodactylus.irc.DccReceiver;
  29 import net.pterodactylus.xdcc.core.Core;
  30 import net.pterodactylus.xdcc.data.Bot;
  31 import net.pterodactylus.xdcc.data.Pack;
  32
  33 import com.google.common.collect.Lists;
  34 import com.google.common.collect.Sets;
  35 import com.google.common.primitives.Ints;
  36 import com.google.common.util.concurrent.AbstractExecutionThreadService;
  37
  38 /**
  39  * Command interface for arbitrary {@link Reader}s.
  40  *
  41  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  42  */
  43 public class CommandReader extends AbstractExecutionThreadService {
  44
  45         /** The core being controlled. */
  46         private final Core core;
  47
  48         /** The reader to read commands from. */
  49         private final BufferedReader reader;
  50
  51         /** The writer to write the results to. */
  52         private final Writer writer;
  53
  54         /**
  55          * Creates a new command reader.
  56          *
  57          * @param core
  58          *              The core being controlled
  59          * @param reader
  60          *              The reader to read commands from
  61          * @param writer
  62          *              The write to write results to
  63          */
  64         public CommandReader(Core core, Reader reader, Writer writer) {
  65                 this.core = core;
  66                 this.reader = new BufferedReader(reader);
  67                 this.writer = writer;
  68         }
  69
  70         //
  71         // ABSTRACTEXECUTIONTHREADSERVICE METHODS
  72         //
  73
  74         @Override
  75         protected void run() throws Exception {
  76                 String lastLine = "";
  77                 String line;
  78                 final List<Result> lastResult = Lists.newArrayList();
  79                 while ((line = reader.readLine()) != null) {
  80                         if (line.equals("")) {
  81                                 line = lastLine;
  82                         }
  83                         String[] words = line.split(" +");
  84                         if (words[0].equalsIgnoreCase("search")) {
  85                                 lastResult.clear();
  86                                 for (Bot bot : core.bots()) {
  87                                         for (Pack pack : bot) {
  88                                                 boolean found = true;
  89                                                 for (int wordIndex = 1; wordIndex < words.length; ++wordIndex) {
  90                                                         if (words[wordIndex].startsWith("-") && pack.name().toLowerCase().contains(words[wordIndex].toLowerCase().substring(1))) {
  91                                                                 found = false;
  92                                                                 break;
  93                                                         }
  94                                                         if (!words[wordIndex].startsWith("-") && !pack.name().toLowerCase().contains(words[wordIndex].toLowerCase())) {
  95                                                                 found = false;
  96                                                                 break;
  97                                                         }
  98                                                 }
  99                                                 if (found) {
 100                                                         lastResult.add(new Result(bot, pack));
 101                                                 }
 102                                         }
 103                                 }
 104                                 Collections.sort(lastResult);
 105                                 int counter = 0;
 106                                 for (Result result : lastResult) {
 107                                         writer.write(String.format("[%d] %s (%s) from %s (#%s) on %s\n", counter++, result.pack().name(), result.pack().size(), result.bot().name(), result.pack().id(), result.bot().network().name()));
 108                                 }
 109                                 writer.write("End of Search.\n");
 110                         } else if (words[0].equalsIgnoreCase("dcc")) {
 111                                 int counter = 0;
 112                                 for (DccReceiver dccReceiver : core.dccReceivers()) {
 113                                         writer.write(String.format("[%d] %s (%s, ", counter++, dccReceiver.filename(), dccReceiver.size()));
 114                                         if (dccReceiver.isRunning()) {
 115                                                 writer.write(String.format("%.1f%%, %s", dccReceiver.progress() * 100.0 / dccReceiver.size(), f(dccReceiver.currentRate())));
 116                                         } else {
 117                                                 if (dccReceiver.progress() >= dccReceiver.size()) {
 118                                                         writer.write(String.format("complete, %s", f(dccReceiver.overallRate())));
 119                                                 } else {
 120                                                         writer.write(String.format("aborted at %.1f%%, %s", dccReceiver.progress() * 100.0 / dccReceiver.size(), f(dccReceiver.currentRate())));
 121                                                 }
 122                                         }
 123                                         writer.write("/s)\n");
 124                                 }
 125                                 writer.write("End of DCCs.\n");
 126                         } else if (words[0].equalsIgnoreCase("get")) {
 127                                 Integer index = Ints.tryParse(words[1]);
 128                                 if ((index != null) && (index < lastResult.size())) {
 129                                         core.fetch(lastResult.get(index).bot(), lastResult.get(index).pack());
 130                                 }
 131                         } else if (words[0].equalsIgnoreCase("stats")) {
 132                                 int configuredChannelsCount = core.channels().size();
 133                                 int joinedChannelsCount = core.joinedChannels().size();
 134                                 int extraChannelsCount = core.extraChannels().size();
 135                                 Collection<Bot> bots = core.bots();
 136                                 Set<String> packNames = Sets.newHashSet();
 137                                 int packsCount = 0;
 138                                 for (Bot bot : bots) {
 139                                         packsCount += bot.packs().size();
 140                                         for (Pack pack : bot) {
 141                                                 packNames.add(pack.name());
 142                                         }
 143                                 }
 144
 145                                 writer.write(String.format("%d channels (%d joined, %d extra), %d bots offering %d packs (%d unique).\n", configuredChannelsCount, joinedChannelsCount, extraChannelsCount, bots.size(), packsCount, packNames.size()));
 146                         }
 147
 148                         lastLine = line;
 149                         writer.flush();
 150                 }
 151         }
 152
 153         //
 154         // PRIVATE METHODS
 155         //
 156
 157         /**
 158          * Converts large numbers into a human-friendly format, by showing SI prefixes
 159          * for ×1024 (K), ×1048576 (M), and ×1073741824 (G).
 160          *
 161          * @param number
 162          *              The number to convert
 163          * @return The converted number
 164          */
 165         private static String f(long number) {
 166                 if (number >= (1 << 30)) {
 167                         return String.format("%.1fG", number / (double) (1 << 30));
 168                 }
 169                 if (number >= (1 << 20)) {
 170                         return String.format("%.1fM", number / (double) (1 << 20));
 171                 }
 172                 if (number >= (1 << 10)) {
 173                         return String.format("%.1fK", number / (double) (1 << 10));
 174                 }
 175                 return String.format("%dB", number);
 176         }
 177
 178         /** Container for result information. */
 179         private static class Result implements Comparable<Result> {
 180
 181                 /** The bot carrying the pack. */
 182                 private final Bot bot;
 183
 184                 /** The pack. */
 185                 private final Pack pack;
 186
 187                 /**
 188                  * Creates a new result.
 189                  *
 190                  * @param bot
 191                  *              The bot carrying the pack
 192                  * @param pack
 193                  *              The pack
 194                  */
 195                 private Result(Bot bot, Pack pack) {
 196                         this.bot = bot;
 197                         this.pack = pack;
 198                 }
 199
 200                 //
 201                 // ACCESSORS
 202                 //
 203
 204                 /**
 205                  * Returns the bot carrying the pack.
 206                  *
 207                  * @return The bot carrying the pack
 208                  */
 209                 public Bot bot() {
 210                         return bot;
 211                 }
 212
 213                 /**
 214                  * Returns the pack.
 215                  *
 216                  * @return The pack
 217                  */
 218                 public Pack pack() {
 219                         return pack;
 220                 }
 221
 222                 //
 223                 // COMPARABLE METHODS
 224                 //
 225
 226                 @Override
 227                 public int compareTo(Result result) {
 228                         return pack().name().compareToIgnoreCase(result.pack().name());
 229                 }
 230
 231         }
 232
 233 }