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.IOException;
  22 import java.io.Reader;
  23 import java.io.Writer;
  24 import java.util.Collection;
  25 import java.util.Collections;
  26 import java.util.List;
  27 import java.util.Set;
  28
  29 import net.pterodactylus.irc.DccReceiver;
  30 import net.pterodactylus.xdcc.core.Core;
  31 import net.pterodactylus.xdcc.core.event.DownloadFinished;
  32 import net.pterodactylus.xdcc.core.event.DownloadStarted;
  33 import net.pterodactylus.xdcc.data.Bot;
  34 import net.pterodactylus.xdcc.data.Download;
  35 import net.pterodactylus.xdcc.data.Pack;
  36
  37 import com.google.common.collect.Lists;
  38 import com.google.common.collect.Sets;
  39 import com.google.common.eventbus.Subscribe;
  40 import com.google.common.primitives.Ints;
  41 import com.google.common.util.concurrent.AbstractExecutionThreadService;
  42
  43 /**
  44  * Command interface for arbitrary {@link Reader}s.
  45  *
  46  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  47  */
  48 public class CommandReader extends AbstractExecutionThreadService {
  49
  50         /** The core being controlled. */
  51         private final Core core;
  52
  53         /** The reader to read commands from. */
  54         private final BufferedReader reader;
  55
  56         /** The writer to write the results to. */
  57         private final Writer writer;
  58
  59         /**
  60          * Creates a new command reader.
  61          *
  62          * @param core
  63          *              The core being controlled
  64          * @param reader
  65          *              The reader to read commands from
  66          * @param writer
  67          *              The write to write results to
  68          */
  69         public CommandReader(Core core, Reader reader, Writer writer) {
  70                 this.core = core;
  71                 this.reader = new BufferedReader(reader);
  72                 this.writer = writer;
  73         }
  74
  75         //
  76         // ABSTRACTEXECUTIONTHREADSERVICE METHODS
  77         //
  78
  79         @Override
  80         protected void run() throws Exception {
  81                 String lastLine = "";
  82                 String line;
  83                 final List<Result> lastResult = Lists.newArrayList();
  84                 while ((line = reader.readLine()) != null) {
  85                         if (line.equals("")) {
  86                                 line = lastLine;
  87                         }
  88                         String[] words = line.split(" +");
  89                         if (words[0].equalsIgnoreCase("search")) {
  90                                 lastResult.clear();
  91                                 for (Bot bot : core.bots()) {
  92                                         for (Pack pack : bot) {
  93                                                 boolean found = true;
  94                                                 for (int wordIndex = 1; wordIndex < words.length; ++wordIndex) {
  95                                                         if (words[wordIndex].startsWith("-") && pack.name().toLowerCase().contains(words[wordIndex].toLowerCase().substring(1))) {
  96                                                                 found = false;
  97                                                                 break;
  98                                                         }
  99                                                         if (!words[wordIndex].startsWith("-") && !pack.name().toLowerCase().contains(words[wordIndex].toLowerCase())) {
 100                                                                 found = false;
 101                                                                 break;
 102                                                         }
 103                                                 }
 104                                                 if (found) {
 105                                                         lastResult.add(new Result(bot, pack));
 106                                                 }
 107                                         }
 108                                 }
 109                                 Collections.sort(lastResult);
 110                                 int counter = 0;
 111                                 for (Result result : lastResult) {
 112                                         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()));
 113                                 }
 114                                 writer.write("End of Search.\n");
 115                         } else if (words[0].equalsIgnoreCase("dcc")) {
 116                                 int counter = 0;
 117                                 for (DccReceiver dccReceiver : core.dccReceivers()) {
 118                                         writer.write(String.format("[%d] %s (%s, ", counter++, dccReceiver.filename(), dccReceiver.size()));
 119                                         if (dccReceiver.isRunning()) {
 120                                                 writer.write(String.format("%.1f%%, %s", dccReceiver.progress() * 100.0 / dccReceiver.size(), f(dccReceiver.currentRate())));
 121                                         } else {
 122                                                 if (dccReceiver.progress() >= dccReceiver.size()) {
 123                                                         writer.write(String.format("complete, %s", f(dccReceiver.overallRate())));
 124                                                 } else {
 125                                                         writer.write(String.format("aborted at %.1f%%, %s", dccReceiver.progress() * 100.0 / dccReceiver.size(), f(dccReceiver.currentRate())));
 126                                                 }
 127                                         }
 128                                         writer.write("/s)\n");
 129                                 }
 130                                 writer.write("End of DCCs.\n");
 131                         } else if (words[0].equalsIgnoreCase("get")) {
 132                                 Integer index = Ints.tryParse(words[1]);
 133                                 if ((index != null) && (index < lastResult.size())) {
 134                                         core.fetch(lastResult.get(index).bot(), lastResult.get(index).pack());
 135                                 }
 136                         } else if (words[0].equalsIgnoreCase("stats")) {
 137                                 int configuredChannelsCount = core.channels().size();
 138                                 int joinedChannelsCount = core.joinedChannels().size();
 139                                 int extraChannelsCount = core.extraChannels().size();
 140                                 Collection<Bot> bots = core.bots();
 141                                 Set<String> packNames = Sets.newHashSet();
 142                                 int packsCount = 0;
 143                                 for (Bot bot : bots) {
 144                                         packsCount += bot.packs().size();
 145                                         for (Pack pack : bot) {
 146                                                 packNames.add(pack.name());
 147                                         }
 148                                 }
 149
 150                                 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()));
 151                         }
 152
 153                         lastLine = line;
 154                         writer.flush();
 155                 }
 156         }
 157
 158         //
 159         // EVENT HANDLERS
 160         //
 161
 162         /**
 163          * Called when a download was started.
 164          *
 165          * @param downloadStarted
 166          *              The download started event
 167          */
 168         @Subscribe
 169         public void downloadStarted(DownloadStarted downloadStarted) {
 170                 Download download = downloadStarted.download();
 171                 try {
 172                         writer.write(String.format("Download of %s (from %s, %s) has started.\n", download.filename(), download.bot().name(), download.bot().network().name()));
 173                         writer.flush();
 174                 } catch (IOException ioe1) {
 175                         /* ignore. */
 176                 }
 177         }
 178
 179         /**
 180          * Called when a download is finished.
 181          *
 182          * @param downloadFinished
 183          *              The download finished event
 184          */
 185         @Subscribe
 186         public void downloadFinished(DownloadFinished downloadFinished) {
 187                 Download download = downloadFinished.download();
 188                 try {
 189                         writer.write(String.format("Download of %s (from %s, %s) has finished, at %s/s.\n", download.filename(), download.bot().name(), download.bot().network().name(), download.dccReceiver().overallRate()));
 190                         writer.flush();
 191                 } catch (IOException ioe1) {
 192                         /* ignore. */
 193                 }
 194         }
 195
 196         //
 197         // PRIVATE METHODS
 198         //
 199
 200         /**
 201          * Converts large numbers into a human-friendly format, by showing SI prefixes
 202          * for ×1024 (K), ×1048576 (M), and ×1073741824 (G).
 203          *
 204          * @param number
 205          *              The number to convert
 206          * @return The converted number
 207          */
 208         private static String f(long number) {
 209                 if (number >= (1 << 30)) {
 210                         return String.format("%.1fG", number / (double) (1 << 30));
 211                 }
 212                 if (number >= (1 << 20)) {
 213                         return String.format("%.1fM", number / (double) (1 << 20));
 214                 }
 215                 if (number >= (1 << 10)) {
 216                         return String.format("%.1fK", number / (double) (1 << 10));
 217                 }
 218                 return String.format("%dB", number);
 219         }
 220
 221         /** Container for result information. */
 222         private static class Result implements Comparable<Result> {
 223
 224                 /** The bot carrying the pack. */
 225                 private final Bot bot;
 226
 227                 /** The pack. */
 228                 private final Pack pack;
 229
 230                 /**
 231                  * Creates a new result.
 232                  *
 233                  * @param bot
 234                  *              The bot carrying the pack
 235                  * @param pack
 236                  *              The pack
 237                  */
 238                 private Result(Bot bot, Pack pack) {
 239                         this.bot = bot;
 240                         this.pack = pack;
 241                 }
 242
 243                 //
 244                 // ACCESSORS
 245                 //
 246
 247                 /**
 248                  * Returns the bot carrying the pack.
 249                  *
 250                  * @return The bot carrying the pack
 251                  */
 252                 public Bot bot() {
 253                         return bot;
 254                 }
 255
 256                 /**
 257                  * Returns the pack.
 258                  *
 259                  * @return The pack
 260                  */
 261                 public Pack pack() {
 262                         return pack;
 263                 }
 264
 265                 //
 266                 // COMPARABLE METHODS
 267                 //
 268
 269                 @Override
 270                 public int compareTo(Result result) {
 271                         return pack().name().compareToIgnoreCase(result.pack().name());
 272                 }
 273
 274         }
 275
 276 }