src/net/chiark/yarrg/MarketUploader.java

   1 package net.chiark.yarrg;
   2
   3 import java.awt.*;
   4 import java.awt.event.*;
   5
   6 import javax.accessibility.*;
   7 import javax.swing.*;
   8
   9 import com.sun.java.accessibility.util.*;
  10
  11 import java.util.*;
  12 import java.io.*;
  13 import java.util.*;
  14 import java.net.URL;
  15 import org.w3c.dom.*;
  16 import javax.xml.parsers.DocumentBuilderFactory;
  17 import org.xml.sax.InputSource;
  18 import java.util.zip.GZIPOutputStream;
  19 import net.chiark.yarrg.ClientHttpRequest;
  20 import java.util.regex.*;
  21 import java.util.prefs.Preferences;
  22 import java.beans.*;
  23
  24 /**
  25 *       MarketUploader is a class that handles the uploading of market
  26 *       data from Yohoho! Puzzle Pirates via the Java Accessibility
  27 *       API.
  28 *
  29 *       MarketUploader initializes after the main YPP window has
  30 *       initialized. It provides a simple window with a "Capture
  31 *       Market Data" button displayed.  Upon clicking this button, a
  32 *       progress dialog is displayed, and the data is processed and
  33 *       submitted to the YARRG and PCTB servers. If any errors occur,
  34 *       an error dialog is shown, and processing returns, the button
  35 *       becoming re-enabled.
  36 */
  37 public class MarketUploader implements TopLevelWindowListener, GUIInitializedListener {
  38         private JFrame frame = null;
  39         private Window window = null;
  40         private JButton findMarket = null;
  41         private JLabel resultSummary = null;
  42         private JLabel arbitrageResult = null;
  43         private int unknownPCTBcommods = 0;
  44         private long startTime = 0;
  45
  46         private final static String PCTB_LIVE_HOST_URL = "http://pctb.crabdance.com/";
  47         private final static String PCTB_TEST_HOST_URL = "http://pctb.ilk.org/";
  48         private String PCTB_HOST_URL;
  49
  50         // Yarrg protocol parameters
  51         private final static String YARRG_CLIENTNAME = "jpctb greenend";
  52         private final static String YARRG_CLIENTVERSION =
  53             net.chiark.yarrg.Version.version;
  54         private final static String YARRG_CLIENTFIXES = "bug-094";
  55         private final static String YARRG_LIVE_URL = "http://upload.yarrg.chiark.net/commod-update-receiver";
  56         private final static String YARRG_TEST_URL = "http://upload.yarrg.chiark.net/test/commod-update-receiver";
  57         private String YARRG_URL;
  58
  59         private boolean uploadToYarrg;
  60         private boolean uploadToPCTB;
  61         private boolean showArbitrage;
  62
  63         private String islandName = null;
  64         private String oceanName = null;
  65         private java.util.concurrent.CountDownLatch latch = null;
  66
  67         private AccessibleContext sidePanel;
  68         private HashMap<String,Integer> commodMap;
  69         public PrintStream dtxt = null;
  70
  71         private PropertyChangeListener changeListener = new PropertyChangeListener() {
  72                 public void propertyChange(PropertyChangeEvent e) {
  73                         if(e.getNewValue() != null &&
  74                                         e.getPropertyName().equals(AccessibleContext.ACCESSIBLE_CHILD_PROPERTY)) {
  75                                 Accessible islandInfo = descendNodes(window,new int[] {0,1,0,0,2,2,0,0,0,0,1,2});;
  76                                 String text = islandInfo.getAccessibleContext().getAccessibleText().getAtIndex(AccessibleText.SENTENCE,0);
  77                                 int index = text.indexOf(":");
  78                                 String name = text.substring(0,index);
  79                                 islandName = name;
  80                                 // if (dtxt!=null) dtxt.println(islandName);
  81                                 sidePanel.removePropertyChangeListener(this);
  82                                 latch.countDown();
  83                         }
  84                 }
  85             };
  86
  87         private int parseQty(String str) {
  88                 if (str.equals(">1000")) {
  89                         return 1001;
  90                 } else {
  91                         return Integer.parseInt(str);
  92                 }
  93         }
  94
  95         private void progresslog(String s) {
  96             if (dtxt == null) return;
  97             long now = new Date().getTime();
  98             dtxt.println("progress "+(now - startTime)+"ms "+s);
  99         }
 100
 101         private void debug_write_stringdata(String what, String data) throws FileNotFoundException,IOException {
 102             if (dtxt==null) return;
 103             PrintStream strm = new PrintStream(new File("jarrg-debug-"+what));
 104             strm.print(data);
 105             strm.close();
 106         }
 107
 108         private void debug_write_bytes(String what, byte[] data) throws FileNotFoundException,IOException {
 109             if (dtxt==null) return;
 110             FileOutputStream strm = new FileOutputStream(new File("jarrg-debug-"+what));
 111             strm.write(data);
 112             strm.close();
 113         }
 114
 115         private void progressNote(ProgressMonitor pm, String s) {
 116             String arb = null;
 117             if (arbitrageResult != null)
 118                 arb = arbitrageResult.getText();
 119             if (arb != null && arb.length() != 0)
 120                 s = "<html>" + arb + "<br>" + s;
 121             pm.setNote(s);
 122         }
 123
 124         /**
 125         *       An abstract market offer, entailing a commodity being bought or sold by
 126         *       a shoppe, for a certain price in a certain quantity. Not instantiable.
 127         *
 128         *       @see Buy
 129         *       @see Sell
 130         */
 131         abstract class Offer {
 132                 public int commodity, price, quantity, shoppe;
 133                 /**
 134                 *       Create an offer from <code>record</code>, determining the shoppe Id from
 135                 *       <code>stallMap</code> and the commodity Id from <code>commodMap</code>.
 136                 *       <code>priceIndex</code> should be the index of the price in the record
 137                 *       (the quantity will be <code>priceIndex + 1</code>).
 138                 *
 139                 *       @param record the record with data to create the offer from
 140                 *       @param stallMap a map containing the ids of the various stalls
 141                 *       @param commodMap a map containing the ids of the various commodities
 142                 *       @param priceIndex the index of the price in the record
 143                 */
 144                 public Offer(ArrayList<String> record, LinkedHashMap<String,Integer> stallMap, HashMap<String,Integer> commodMap,
 145                                 int priceIndex) {
 146                         Integer commodId = commodMap.get(record.get(0));
 147                         if(commodId == null) {
 148                                 throw new IllegalArgumentException();
 149                         }
 150                         commodity = commodId.intValue();
 151                         price = Integer.parseInt(record.get(priceIndex));
 152                         String qty = record.get(priceIndex+1);
 153                         quantity = parseQty(qty);
 154                         shoppe = stallMap.get(record.get(1)).intValue();
 155                 }
 156
 157                 /**
 158                 *       Returns a human-readable version of this offer, useful for debugging
 159                 *
 160                 *       @return human-readable offer
 161                 */
 162                 public String toString() {
 163                         return "[C:" + commodity + ",$" + price + ",Q:" + quantity + ",S:" + shoppe + "]";
 164                 }
 165         }
 166
 167         /**
 168         *       An offer from a shoppe or stall to buy a certain quantity of a commodity
 169         *       for a certain price. If placed in an ordered Set, sorts by commodity index ascending,
 170         *       then by buy price descending, and finally by stall id ascending.
 171         */
 172         class Buy extends Offer implements Comparable<Buy> {
 173                 /**
 174                 *       Creates a new <code>Buy</code> offer from the given <code>record</code>
 175                 *       using the other parameters to determine stall id and commodity id of the offer.
 176                 *
 177                 *       @param record the record with data to create the offer from
 178                 *       @param stallMap a map containing the ids of the various stalls
 179                 *       @param commodMap a map containing the ids of the various commodities
 180                 */
 181                 public Buy(ArrayList<String> record, LinkedHashMap<String,Integer> stallMap, HashMap<String,Integer> commodMap) {
 182                         super(record,stallMap,commodMap,2);
 183                 }
 184
 185                 /**
 186                 *       Sorts by commodity index ascending, then price descending, then stall id ascending.
 187                 */
 188                 public int compareTo(Buy buy) {
 189                         // organize by: commodity index, price, stall index
 190                         if(commodity == buy.commodity) {
 191                                 // organize by price, then by stall index
 192                                 if(price == buy.price) {
 193                                         // organize by stall index
 194                                         return shoppe>buy.shoppe ? 1 : -1;
 195                                 } else if(price > buy.price) {
 196                                         return -1;
 197                                 } else {
 198                                         return 1;
 199                                 }
 200                         } else if(commodity > buy.commodity) {
 201                                 return 1;
 202                         } else {
 203                                 return -1;
 204                         }
 205                 }
 206         }
 207
 208         /**
 209         *       An offer from a shoppe or stall to sell a certain quantity of a commodity
 210         *       for a certain price. If placed in an ordered Set, sorts by commodity index ascending,
 211         *       then by sell price ascending, and finally by stall id ascending.
 212         */
 213         class Sell extends Offer implements Comparable<Sell> {
 214                 /**
 215                 *       Creates a new <code>Sell</code> offer from the given <code>record</code>
 216                 *       using the other parameters to determine stall id and commodity id of the offer.
 217                 *
 218                 *       @param record the record with data to create the offer from
 219                 *       @param stallMap a map containing the ids of the various stalls
 220                 *       @param commodMap a map containing the ids of the various commodities
 221                 */
 222                 public Sell(ArrayList<String> record, LinkedHashMap<String,Integer> stallMap, HashMap<String,Integer> commodMap) {
 223                         super(record,stallMap,commodMap,4);
 224                 }
 225
 226                 /**
 227                 *       Sorts by commodity index ascending, then price ascending, then stall id ascending.
 228                 */
 229                 public int compareTo(Sell sell) {
 230                         // organize by: commodity index, price, stall index
 231                         if(commodity == sell.commodity) {
 232                                 // organize by price, then by stall index
 233                                 if(price == sell.price) {
 234                                         // organize by stall index
 235                                         return shoppe>sell.shoppe ? 1 : -1;
 236                                 } else if(price > sell.price) {
 237                                         return 1;
 238                                 } else {
 239                                         return -1;
 240                                 }
 241                         } else if(commodity > sell.commodity) {
 242                                 return 1;
 243                         } else {
 244                                 return -1;
 245                         }
 246                 }
 247         }
 248
 249         /**
 250         *       Entry point.  Read our preferences.
 251         */
 252         public MarketUploader() {
 253                 Preferences prefs = Preferences.userNodeForPackage(getClass());
 254
 255                 if (prefs.getBoolean("writeDebugFiles", false)) {
 256                     try {
 257                         dtxt = new PrintStream(new File("jarrg-debug-log.txt"));
 258                     } catch (java.io.FileNotFoundException e) {
 259                         System.err.println("JARRG: Error opening debug log: "+e);
 260                     }
 261                 }
 262
 263                 if (prefs.getBoolean("useLiveServers", true)) {
 264                         YARRG_URL = YARRG_LIVE_URL;
 265                         PCTB_HOST_URL = PCTB_LIVE_HOST_URL;
 266                 } else {
 267                         YARRG_URL = YARRG_TEST_URL;
 268                         PCTB_HOST_URL = PCTB_TEST_HOST_URL;
 269                 }
 270
 271                 uploadToYarrg=prefs.getBoolean("uploadToYarrg", true);
 272                 uploadToPCTB=prefs.getBoolean("uploadToPCTB", true);
 273                 showArbitrage=prefs.getBoolean("showArbitrage", true);
 274
 275                 EventQueueMonitor.addTopLevelWindowListener(this);
 276                 if (EventQueueMonitor.isGUIInitialized()) {
 277                         createGUI();
 278                 } else {
 279                         EventQueueMonitor.addGUIInitializedListener(this);
 280                 }
 281         }
 282
 283         /**
 284         *       Set up the GUI, with its window and one-button
 285         *       interface. Only initialize if we're running alongside
 286         *       a Window named "Puzzle Pirates" though.
 287         */
 288         private void createGUI() {
 289                 if (frame != null && window != null) {
 290                         if (window.getAccessibleContext().getAccessibleName().equals("Puzzle Pirates")) frame.setVisible(true);
 291                         return;
 292                 }
 293                 frame = new JFrame("Jarrg Uploader");
 294                 frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
 295                 GridLayout layout = new GridLayout(2,1);
 296                 frame.getContentPane().setLayout(layout);
 297                 //frame.setPreferredSize(new Dimension(200, 60));
 298
 299                 findMarket = new JButton("Upload Market Data");
 300                 findMarket.addActionListener(new ActionListener() {
 301                         public void actionPerformed(ActionEvent e) {
 302                                 findMarket.setEnabled(false);
 303                                 new Thread() {
 304                                         public void run() {
 305                                                 startTime = new Date().getTime();
 306                                                 resultSummary.setText("");
 307                                                 arbitrageResult.setText("");
 308                                                 unknownPCTBcommods = 0;
 309                                                 try {
 310                                                         runUpload();
 311                                                 } catch(Exception e) {
 312                                                         error(e.toString());
 313                                                         e.printStackTrace();
 314                                                         resultSummary.setText("failed");
 315                                                 } finally {
 316                                                         if(sidePanel != null) {
 317                                                                 // remove it if it's still attached
 318                                                                 sidePanel.removePropertyChangeListener(changeListener);
 319                                                         }
 320                                                 }
 321                                                 findMarket.setEnabled(true);
 322                                         }
 323                                 }.start();
 324                         }
 325                 });
 326                 frame.add(findMarket);
 327
 328                 resultSummary = new JLabel("ready");
 329                 frame.add(resultSummary);
 330
 331                 arbitrageResult = new JLabel("");
 332
 333                 if (showArbitrage) {
 334                     layout.setRows(layout.getRows() + 1);
 335                     frame.add(arbitrageResult);
 336                 }
 337
 338                 frame.pack();
 339         }
 340
 341         /**
 342         *       Finds the island name from the /who tab, sets global islandName variable
 343         */
 344         private void getIsland() {
 345
 346                 // If the league tracker is there, we can skip the faff
 347                 // and ask for its tooltip, since we're on a boat
 348
 349                 Accessible leagueTrackerContainer = descendNodes(window,new int[] {0,1,0,0,2,1});
 350                 Accessible leagueTrackerItself = descendByClass(leagueTrackerContainer,
 351                                                                 "com.threerings.yohoho.sea.client.LeagueTracker");
 352                 Accessible leagueTracker = descend(leagueTrackerItself, 1);
 353                 try {
 354                         islandName = ((JLabel)leagueTracker).getToolTipText();
 355                 } catch (NullPointerException e) {
 356                         // evidently we're actually on an island
 357
 358                         islandName = null;
 359                         AccessibleContext chatArea = descendNodes(window,new int[] {0,1,0,0,0,2,0,0,2}).getAccessibleContext();
 360                         // attach the property change listener to the outer sunshine panel if the "ahoy" tab
 361                         // is not active, otherwise attach it to the scroll panel in the "ahoy" tab.
 362                         if(!"com.threerings.piracy.client.AttentionListPanel".
 363                            equals(descendNodes(window,new int[] {0,1,0,0,2,2,0}).getClass().getCanonicalName())) {
 364                                 sidePanel = descendNodes(window,new int[] {0,1,0,0,2,2}).getAccessibleContext();
 365                         } else {
 366                                 sidePanel = descendNodes(window,new int[] {0,1,0,0,2,2,0,0,0}).getAccessibleContext();
 367                         }
 368                         sidePanel.addPropertyChangeListener(changeListener);
 369                         latch = new java.util.concurrent.CountDownLatch(1);
 370                         // make the Players Online ("/who") panel appear
 371                         AccessibleEditableText chat = chatArea.getAccessibleEditableText();
 372                         chat.setTextContents("/w");
 373                         int c = chatArea.getAccessibleAction().getAccessibleActionCount();
 374                         for(int i=0;i<c;i++) {
 375                                 if("notify-field-accept".equals(chatArea.getAccessibleAction().getAccessibleActionDescription(i))) {
 376                                         chatArea.getAccessibleAction().doAccessibleAction(i);
 377                                 }
 378                         }
 379                 }
 380         }
 381
 382         /**
 383          *      Find the ocean name from the window title, and set global oceanName variable
 384          */
 385         private void getOcean() {
 386                 oceanName = null;
 387                 AccessibleContext topwindow = window.getAccessibleContext();
 388                 oceanName = topwindow.getAccessibleName().replaceAll(".*on the (\\w+) ocean", "$1");
 389         }
 390
 391
 392         /**
 393         *       Shows a dialog with the error <code>msg</code>.
 394         *
 395         *       @param msg a String describing the error that occured.
 396         */
 397         private void error(String msg) {
 398                 JOptionPane.showMessageDialog(frame,msg,"Error",JOptionPane.ERROR_MESSAGE);
 399         }
 400
 401         private void error_html(String msg, String html) {
 402                 Pattern body = Pattern.compile("<body>(.*)</body>", Pattern.DOTALL | Pattern.CASE_INSENSITIVE);
 403                 Matcher m = body.matcher(html);
 404                 if (m.find()) {
 405                         html = m.group(1);
 406                         Pattern fixup = Pattern.compile("<(\\w+) */>");;
 407                         m = fixup.matcher(html);
 408                         html = m.replaceAll("<$1>");
 409                         m = Pattern.compile("[\\r\\n]+").matcher(html);
 410                         html = m.replaceAll(" ");
 411                 }
 412                 String whole_msg = "<html><h1>Error</h1>"+msg+"<h1>PCTB Server said:</h1><blockquote>"+html+"</blockquote>";
 413                 if (dtxt!=null) dtxt.println("###" + whole_msg + "###");
 414
 415                 JOptionPane.showMessageDialog(frame,whole_msg,"Error",JOptionPane.ERROR_MESSAGE);
 416         }
 417
 418         /**
 419         *       Run the data collection process, and upload the results. This is the method
 420         *       that calls most of the other worker methods for the process. If an error occurs,
 421         *       the method will call the error method and return early, freeing up the button
 422         *       to be clicked again.
 423         *
 424         *       @exception Exception if an error we didn't expect occured
 425         */
 426         private class YarrgTimestampFetcher extends Thread {
 427             public String ts = null;
 428             public void run() {
 429                 try {
 430                     ts = getYarrgTimestamp();
 431                     progresslog("(async) yarrg timestamp ready.");
 432                 } catch(Exception e) {
 433                     error("Error getting YARRG timestamp: "+e);
 434                 }
 435             }
 436         };
 437
 438         private void runUpload() throws Exception {
 439                 progresslog("starting");
 440
 441                 ProgressMonitor pm = new ProgressMonitor(frame,"Processing Market Data","Getting table data",0,100);
 442                 pm.setMillisToDecideToPopup(0);
 443                 pm.setMillisToPopup(0);
 444                 boolean doneyarrg = false, donepctb = false;
 445                 YarrgTimestampFetcher yarrgts_thread = null;
 446
 447                 if (uploadToYarrg) {
 448                         progresslog("(async) yarrg timestamp...");
 449                         yarrgts_thread = new YarrgTimestampFetcher();
 450                         yarrgts_thread.start();
 451                 }
 452
 453                 AccessibleTable accesstable = findMarketTable();
 454                 if(accesstable == null) {
 455                         error("Market table not found! Please open the Buy/Sell Commodities interface.");
 456                         return;
 457                 }
 458                 if(accesstable.getAccessibleRowCount() == 0) {
 459                         error("No data found, please wait for the table to have data first!");
 460                         return;
 461                 }
 462                 if(!isDisplayAll()) {
 463                         error("Please select \"All\" from the Display: popup menu.");
 464                         return;
 465                 }
 466
 467                 progresslog("(async) getisland...");
 468                 getIsland();
 469                 progresslog("getocean...");
 470                 getOcean();
 471                 progresslog("getocean done");
 472
 473                 if (latch != null) {
 474                     latch.await(2, java.util.concurrent.TimeUnit.SECONDS);
 475                 }
 476                 progresslog("(async) getisland done");
 477
 478                 String yarrgts = null;
 479                 if (yarrgts_thread != null) {
 480                     progresslog("(async) yarrg timestamp join...");
 481                     yarrgts_thread.join();
 482                     progresslog("(async) yarrg timestamp joined.");
 483                     yarrgts = yarrgts_thread.ts;
 484                 }
 485
 486                 if (islandName == null) {
 487                     error("Could not find island name in YPP user interface.");
 488                     return;
 489                 }
 490
 491                 progresslog("table check...");
 492
 493                 String headings_expected[] = new String[]
 494                     { "Commodity", "Trading outlet", "Buy price", "Will buy", "Sell price", "Will sell" };
 495                 ArrayList<ArrayList<String>> headers = getData(accesstable.getAccessibleColumnHeader());
 496                 if (headers.size() != 1) {
 497                     error("Table headings not one row! " + headers.toString());
 498                     return;
 499                 }
 500                 if (headers.get(0).size() < 6 ||
 501                     headers.get(0).size() > 7) {
 502                     error("Table headings not six or seven columns! " + headers.toString());
 503                     return;
 504                 }
 505                 for (int col=0; col<headings_expected.length; col++) {
 506                     String expd = headings_expected[col];
 507                     String got = headers.get(0).get(col);
 508                     if (expd.compareTo(got) != 0) {
 509                         error("Table heading for column "+col
 510                               +" is not \""+expd+"\" but \""+got+"\".\n\n"
 511                               +"Please do not reorder the table when using this tool.");
 512                         return;
 513                     }
 514                 }
 515
 516                 progresslog("table read...");
 517
 518                 ArrayList<ArrayList<String>> data = getData(accesstable);
 519
 520                 if (showArbitrage) {
 521                         progresslog("arbitrage...");
 522                         calculateArbitrage(data);
 523                         progresslog("arbitrage done.");
 524                 }
 525
 526                 if (uploadToYarrg && yarrgts != null) {
 527                         progresslog("yarrg prepare...");
 528                         progressNote(pm, "Yarrg: Preparing data");
 529                         pm.setProgress(10);
 530
 531                         StringBuilder yarrgsb = new StringBuilder();
 532                         String yarrgdata; // string containing what we'll feed to yarrg
 533
 534                         for (ArrayList<String> row : data) {
 535                                 if (row.size() > 6) {
 536                                         row.remove(6);
 537                                 }
 538                                 for (String rowitem : row) {
 539                                         yarrgsb.append(rowitem != null ? rowitem : "");
 540                                         yarrgsb.append("\t");
 541                                 }
 542                                 yarrgsb.setLength(yarrgsb.length()-1); // chop
 543                                 yarrgsb.append("\n");
 544                         }
 545
 546                         yarrgdata = yarrgsb.toString();
 547
 548                         progressNote(pm, "Yarrg: Uploading");
 549                         progresslog("yarrg upload...");
 550
 551                         doneyarrg = runYarrg(yarrgts, oceanName, islandName, yarrgdata);
 552                         progresslog("yarrg done.");
 553                 }
 554
 555                 if (uploadToPCTB) {
 556                     progresslog("pctb prepare...");
 557                     progressNote(pm, "PCTB: Getting stall names");
 558                     pm.setProgress(20);
 559                     if(pm.isCanceled()) {
 560                         return;
 561                     }
 562                     TreeSet<Offer> buys = new TreeSet<Offer>();
 563                     TreeSet<Offer> sells = new TreeSet<Offer>();
 564                     LinkedHashMap<String,Integer> stallMap = getStallMap(data);
 565                     pm.setProgress(40);
 566                     progressNote(pm, "PCTB: Sorting offers");
 567                     if(pm.isCanceled()) {
 568                         return;
 569                     }
 570                     // get commod map
 571
 572                     progresslog("pctb commodmap...");
 573                     HashMap<String,Integer> commodMap = getCommodMap();
 574                     if(commodMap == null) {
 575                         return;
 576                     }
 577                     progresslog("pctb commodmap done.");
 578                     int[] offerCount = getBuySellMaps(data,buys,sells,stallMap,commodMap);
 579                     // if (dtxt!=null) dtxt.println(sells);
 580                     // if (dtxt!=null) dtxt.println("\n\n\n"+buys);
 581
 582                     ByteArrayOutputStream outStream = new ByteArrayOutputStream();
 583                     pm.setProgress(60);
 584                     progressNote(pm, "PCTB: Sending data");
 585                     if(pm.isCanceled()) {
 586                         return;
 587                     }
 588                     GZIPOutputStream out = new GZIPOutputStream(outStream);
 589                     DataOutputStream dos = new DataOutputStream(out);
 590                     dos.writeBytes("005y\n");
 591                     dos.writeBytes(stallMap.size()+"\n");
 592                     dos.writeBytes(getAbbrevStallList(stallMap));
 593                     writeBuySellOffers(buys,sells,offerCount,out);
 594                     out.finish();
 595                     progresslog("pctb send...");
 596
 597                     byte[] ba = outStream.toByteArray();
 598                     debug_write_bytes("pctb-marketdata.gz", ba);
 599
 600                     InputStream in = sendInitialData(new ByteArrayInputStream(ba));
 601                     progresslog("pctb sent.");
 602                     if (in == null) return;
 603                     pm.setProgress(80);
 604                     if(pm.isCanceled()) {
 605                         return;
 606                     }
 607                     progressNote(pm, "PCTB: Waiting ...");
 608                     progresslog("pctb finish...");
 609                     donepctb = finishUpload(in);
 610                     progresslog("pctb done.");
 611                 }
 612                 pm.setProgress(100);
 613
 614                 if ((uploadToPCTB && !donepctb) ||
 615                     (uploadToYarrg && !doneyarrg)) {
 616                         resultSummary.setText("trouble");
 617                 } else if (unknownPCTBcommods != 0) {
 618                         resultSummary.setText("PCTB lacks "+unknownPCTBcommods+" commod");
 619                 } else if (donepctb || doneyarrg) {
 620                         resultSummary.setText("Done " + islandName);
 621                 } else {
 622                         resultSummary.setText("uploaded nowhere!");
 623                 }
 624                 progresslog("done.");
 625         }
 626
 627         /**
 628         *       Get the offer data out of the table and cache it in an <code>ArrayList</code>.
 629         *
 630         *       @param table the <code>AccessibleTable</code> containing the market data
 631         *       @return an array of record arrays, each representing a row of the table
 632         */
 633         private ArrayList<ArrayList<String>> getData(AccessibleTable table) {
 634                 ArrayList<ArrayList<String>> data = new ArrayList<ArrayList<String>>();
 635                 for (int i = 0; i < table.getAccessibleRowCount(); i++) {
 636                         ArrayList<String> row = new ArrayList<String>();
 637                         for (int j = 0; j < table.getAccessibleColumnCount(); j++) {
 638                                 row.add(table.getAccessibleAt(i, j).getAccessibleContext().getAccessibleName());
 639                         }
 640                         data.add(row);
 641                 }
 642                 return data;
 643         }
 644
 645         /**
 646         *       @return the table containing market data if it exists, otherwise <code>null</code>
 647         */
 648         public AccessibleTable findMarketTable() {
 649                 Accessible node1 = window;
 650                 Accessible node = descendNodes(node1,new int[] {0,1,0,0,0,0,1,0,0,1,0,0}); // commod market
 651                 // commod market: {0,1,0,0,0,0,1,0,0,1,0}  {0,1,0,0,0,0,1,0,1,0,0,1,0,0})
 652                 // if (dtxt!=null) dtxt.println(node);
 653                 if (!(node instanceof JTable)) {
 654                         node = descendNodes(node1,new int[] {0,1,0,0,0,0,1,0,1,0,0,1,0,0}); // commod market
 655                 }
 656                 if (!(node instanceof JTable)) return null;
 657                 AccessibleTable table = node.getAccessibleContext().getAccessibleTable();
 658                 // if (dtxt!=null) dtxt.println(table);
 659                 return table;
 660         }
 661
 662         /**
 663         *       Utility method to descend through several levels of Accessible children
 664         *       at once.
 665         *
 666         *       @param parent the node on which to start the descent
 667         *       @param path an array of ints, each int being the index of the next
 668         *       accessible child to descend.
 669         *       @return the <code>Accessible</code> reached by following the descent path,
 670         *       or <code>null</code> if the desired path was invalid.
 671         */
 672         private Accessible descendNodes(Accessible parent, int[] path) {
 673                 for(int i=0;i<path.length;i++) {
 674                         if (null == (parent = descend(parent, path[i]))) return null;
 675                 }
 676                 return parent;
 677         }
 678
 679         /**
 680         *       Descends one level to the specified child of the parent <code>Accessible</code> "node".
 681         *
 682         *       @param parent the node with children
 683         *       @param childNum the index of the child of <code>parent</code> to return
 684         *       @return the <code>childNum</code> child of <code>parent</code> or <code>null</code>
 685         *       if the child is not found.
 686         */
 687         private Accessible descend(Accessible parent, int childNum) {
 688                 if (parent == null) return null;
 689                 int children = parent.getAccessibleContext().getAccessibleChildrenCount();
 690                 if (childNum >= children) {
 691                     if (dtxt!=null) dtxt.println("DESCEND "+childNum+" > "+children+" NOT FOUND");
 692                     return null;
 693                 }
 694                 Accessible child = parent.getAccessibleContext().getAccessibleChild(childNum);
 695                 if (dtxt!=null) dtxt.println("DESCEND "+childNum+" "+child.getClass().getName()+" OK");
 696                 return child;
 697         }
 698
 699         /**
 700         *       Descends one level to the child which has the specified class.
 701         *
 702         *       @param parent the node with children
 703         *       @param classname the name of the class, as a string
 704         *       @return the child or <code>null</code> if the child is not found.
 705         */
 706         private Accessible descendByClass(Accessible parent, String classname) {
 707                 if (parent == null) return null;
 708                 AccessibleContext ac = parent.getAccessibleContext();
 709                 int children = ac.getAccessibleChildrenCount();
 710                 for (int i=0; i<children; i++) {
 711                         Accessible child = ac.getAccessibleChild(i);
 712                         if (child.getClass().getName() == classname) {
 713                             if (dtxt!=null) dtxt.println("DESCEND CLASS "+classname+" OK");
 714                             return child;
 715                         }
 716                 }
 717                 if (dtxt!=null) dtxt.println("DESCEND CLASS "+classname+" NOT FOUND");
 718                 return null;
 719         }
 720
 721         public static void main(String[] args) {
 722                 new MarketUploader();
 723         }
 724
 725         /**
 726         *       Set the global window variable after the YPP window is created,
 727         *       remove the top level window listener, and start the GUI
 728         */
 729         public void topLevelWindowCreated(Window w) {
 730                 window = w;
 731                 EventQueueMonitor.removeTopLevelWindowListener(this);
 732                 createGUI();
 733         }
 734
 735         /**
 736         *       Returns true if the "Display:" menu on the commodities interface in YPP is set to "All"
 737         *
 738         *       @return <code>true</code> if all commodities are displayed, otherwise <code>false</code>
 739         */
 740         private boolean isDisplayAll() {
 741                 Accessible button = descendNodes(window,new int[] {0,1,0,0,0,0,1,0,0,0,1});
 742                 if(!(button instanceof JButton)) {
 743                         button = descendNodes(window,new int[] {0,1,0,0,0,0,1,0,1,0,0,0,1});
 744                 }
 745                 String display = button.getAccessibleContext().getAccessibleName();
 746                 if(!display.equals("All")) {
 747                         return false;
 748                 }
 749                 return true;
 750         }
 751
 752         public void topLevelWindowDestroyed(Window w) {}
 753
 754         public void guiInitialized() {
 755                 createGUI();
 756         }
 757
 758         /**
 759         *       Gets the list of commodities and their associated commodity ids.
 760         *
 761         *       @return a map where the key is the commodity and the value is the commodity id.
 762         */
 763         private HashMap<String,Integer> getCommodMap() {
 764                 if(commodMap != null) {
 765                         return commodMap;
 766                 }
 767                 HashMap<String,Integer> map = new HashMap<String,Integer>();
 768                 String xml;
 769                 try {
 770                         URL host = new URL(PCTB_HOST_URL + "commodmap.php");
 771                         BufferedReader br = new BufferedReader(new InputStreamReader(host.openStream()));
 772                         StringBuilder sb = new StringBuilder();
 773                         String str;
 774                         while((str = br.readLine()) != null) {
 775                                 sb.append(str);
 776                         }
 777                         if (dtxt != null) debug_write_stringdata("pctb-commodmap.xmlish", sb.toString());
 778                         int first = sb.indexOf("<pre>") + 5;
 779                         int last = sb.indexOf("</body>");
 780                         xml = sb.substring(first,last);
 781                         Reader reader = new CharArrayReader(xml.toCharArray());
 782                         Document d = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(new InputSource(reader));
 783                         NodeList maps = d.getElementsByTagName("CommodMap");
 784                         for(int i=0;i<maps.getLength();i++) {
 785                                 NodeList content = maps.item(i).getChildNodes();
 786                                 Integer num = Integer.parseInt(content.item(1).getTextContent());
 787                                 map.put(content.item(0).getTextContent(),num);
 788                         }
 789                 } catch(Exception e) {
 790                         e.printStackTrace();
 791                         error("Unable to load Commodity list from server!");
 792                         return null;
 793                 }
 794                 commodMap = map;
 795                 return map;
 796         }
 797
 798         /**
 799         *       Given the list of offers, this method will find all the unique stall names
 800         *       and return them in a <code>LinkedHashMap</code> where the key is the stall name
 801         *       and the value is the generated stall id (position in the list).
 802         *       <p>
 803         *       The reason this method returns a LinkedHashMap instead of a simple HashMap is the need
 804         *       for iterating over the stall names in insertion order for output to the server.
 805         *
 806         *       @param offers the list of records from the commodity buy/sell interface
 807         *       @return an iterable ordered map of the stall names and generated stall ids
 808         */
 809         private LinkedHashMap<String,Integer> getStallMap(ArrayList<ArrayList<String>> offers) {
 810                 int count = 0;
 811                 LinkedHashMap<String,Integer> map = new LinkedHashMap<String,Integer>();
 812                 for(ArrayList<String> offer : offers) {
 813                         String shop = offer.get(1);
 814                         if(!map.containsKey(shop)) {
 815                                 count++;
 816                                 map.put(shop,count);
 817                         }
 818                 }
 819                 return map;
 820         }
 821
 822         /**
 823         *       Gets a sorted list of Buys and Sells from the list of records. <code>buys</code> and <code>sells</code>
 824         *       should be pre-initialized and passed into the method to receive the data.
 825         *       Returns a 2-length int array with the number of buys and sells found.
 826         *
 827         *       @param offers the data found from the market table in-game
 828         *       @param buys an empty initialized <code>TreeSet&lt;Offer&gt;</code> to
 829         *       hold the Buy offers.
 830         *       @param sells an empty initialized <code>TreeSet&lt;Offer&gt;</code> to
 831         *       hold the Sell offers.
 832         *       @param stalls the map of stalls to their ids
 833         *       @param commodMap the map of commodities to their ids
 834         *       @return a 2-length int[] array containing the number of buys and sells, respectively
 835         */
 836         private int[] getBuySellMaps(ArrayList<ArrayList<String>> offers, TreeSet<Offer> buys,
 837                         TreeSet<Offer> sells, LinkedHashMap<String,Integer> stalls, HashMap<String,Integer> commodMap) {
 838                 int[] buySellCount = new int[2];
 839                 for(ArrayList<String> offer : offers) {
 840                         try {
 841                                 if(offer.get(2) != null) {
 842                                         buys.add(new Buy(offer,stalls,commodMap));
 843                                         buySellCount[0]++;
 844                                 }
 845                                 if(offer.get(4) != null) {
 846                                         sells.add(new Sell(offer,stalls,commodMap));
 847                                         buySellCount[1]++;
 848                                 }
 849                         } catch(IllegalArgumentException e) {
 850                                 unknownPCTBcommods++;
 851                                 if (dtxt!=null) dtxt.println("Error: Unsupported Commodity \"" + offer.get(0) + "\"");
 852                         }
 853                 }
 854                 if (buySellCount[0]==0 && buySellCount[1]==0) {
 855                     error("No (valid) offers for PCTB?!");
 856                     throw new IllegalArgumentException();
 857                 }
 858                 return buySellCount;
 859         }
 860
 861         /**
 862         *       Prepares the list of stalls for writing to the output stream.
 863         *       The <code>String</code> returned by this method is ready to be written
 864         *       directly to the stream.
 865         *       <p>
 866         *       All shoppe names are left as they are. Stall names are abbreviated just before the
 867         *       apostrophe in the possessive, with an "^" and a letter matching the stall's type
 868         *       appended. Example: "Burninator's Ironworking Stall" would become "Burninator^I".
 869         *
 870         *       @param stallMap the map of stalls and stall ids in an iterable order
 871         *       @return a <code>String</code> containing the list of stalls in format ready
 872         *       to be written to the output stream.
 873         */
 874         private String getAbbrevStallList(LinkedHashMap<String,Integer> stallMap) {
 875                 // set up some mapping
 876                 HashMap<String,String> types = new HashMap<String,String>();
 877                 types.put("Apothecary Stall", "A");
 878                 types.put("Distilling Stall", "D");
 879                 types.put("Furnishing Stall", "F");
 880                 types.put("Ironworking Stall", "I");
 881                 types.put("Shipbuilding Stall", "S");
 882                 types.put("Tailoring Stall", "T");
 883                 types.put("Weaving Stall", "W");
 884
 885                 StringBuilder sb = new StringBuilder();
 886                 for(String name : stallMap.keySet()) {
 887                         int index = name.indexOf("'s");
 888                         String finalName = name;
 889                         String type = null;
 890                         if (index > 0) {
 891                                 finalName = name.substring(0,index);
 892                                 if(index + 2 < name.length()) {
 893                                         String end = name.substring(index+2,name.length()).trim();
 894                                         type = types.get(end);
 895                                 }
 896                         }
 897                         if(type==null) {
 898                                 sb.append(name+"\n");
 899                         } else {
 900                                 sb.append(finalName+"^"+type+"\n");
 901                         }
 902                 }
 903                 return sb.toString();
 904         }
 905
 906         /**
 907         *       Writes a list of offers in correct format to the output stream.
 908         *       <p>
 909         *       The format is thus: (all numbers are 2-byte integers in little-endian format)
 910         *       (number of offers of this type, aka buy/sell)
 911         *       (commodity ID) (number of offers for this commodity) [shopID price qty][shopID price qty]...
 912         *
 913         *       @param out the output stream to write the data to
 914         *       @param offers the offers to write
 915         */
 916         private void writeOffers(OutputStream out, TreeSet<Offer> offers) throws IOException {
 917                 ByteArrayOutputStream buffer = new ByteArrayOutputStream();
 918                 if(offers.size() == 0) {
 919                         // nothing to write, and "0" has already been written
 920                         return;
 921                 }
 922                 int commodity = offers.first().commodity;
 923                 int count = 0;
 924                 for(Offer offer : offers) {
 925                         if(commodity != offer.commodity) {
 926                                 // write out buffer
 927                                 writeBufferedOffers(out,buffer.toByteArray(),commodity,count);
 928                                 buffer.reset();
 929                                 commodity = offer.commodity;
 930                                 count = 0;
 931                         }
 932                         writeLEShort(offer.shoppe,buffer); // stall index
 933                         writeLEShort(offer.price,buffer); // buy price
 934                         writeLEShort(offer.quantity,buffer); // buy qty
 935                         count++;
 936                 }
 937                 writeBufferedOffers(out,buffer.toByteArray(),commodity,count);
 938         }
 939
 940         /**
 941         *       Writes the buffered data to the output strea for one commodity.
 942         *
 943         *       @param out the stream to write to
 944         *       @param buffer the buffered data to write
 945         *       @param commodity the commmodity id to write before the buffered data
 946         *       @param count the number of offers for this commodity to write before the data
 947         */
 948         private void writeBufferedOffers(OutputStream out, byte[] buffer, int commodity, int count) throws IOException {
 949                 writeLEShort(commodity,out); // commod index
 950                 writeLEShort(count,out); // offer count
 951                 out.write(buffer); // the buffered offers
 952         }
 953
 954         /**
 955         *       Writes the buy and sell offers to the outputstream by calling other methods.
 956         *
 957         *       @param buys list of Buy offers to write
 958         *       @param sells list of Sell offers to write
 959         *       @param offerCount 2-length int array containing the number of buys and sells to write out
 960         *       @param out the stream to write to
 961         */
 962         private void writeBuySellOffers(TreeSet<Offer> buys,
 963                         TreeSet<Offer> sells, int[] offerCount, OutputStream out) throws IOException {
 964                 // # buy offers
 965                 writeLEShort(offerCount[0],out);
 966                 writeOffers(out,buys);
 967                 // # sell offers
 968                 writeLEShort(offerCount[1],out);
 969                 writeOffers(out,sells);
 970         }
 971
 972         private String readstreamstring(InputStream in) throws IOException {
 973                 StringBuilder sb = new StringBuilder();
 974                 BufferedReader br = new BufferedReader(new InputStreamReader(in));
 975                 String str;
 976                 while((str = br.readLine()) != null) {
 977                         sb.append(str+"\n");
 978                 }
 979                 return sb.toString();
 980         }
 981
 982         /**
 983         *       Sends the data to the server via multipart-formdata POST,
 984         *       with the gzipped data as a file upload.
 985         *
 986         *       @param file an InputStream open to the gzipped data we want to send
 987         */
 988         private InputStream sendInitialData(InputStream file) throws IOException {
 989                 ClientHttpRequest http = new ClientHttpRequest(PCTB_HOST_URL + "upload.php");
 990                 http.setParameter("marketdata","marketdata.gz",file,"application/gzip");
 991                 if (!http.post()) {
 992                         String err = readstreamstring(http.resultstream());
 993                         error("Error sending initial data:\n"+err);
 994                         return null;
 995                 }
 996                 return http.resultstream();
 997         }
 998
 999         /**
1000         *       Utility method to write a 2-byte int in little-endian form to an output stream.
1001         *
1002         *       @param num an integer to write
1003         *       @param out stream to write to
1004         */
1005         private void writeLEShort(int num, OutputStream out) throws IOException {
1006                 out.write(num & 0xFF);
1007                 out.write((num >>> 8) & 0xFF);
1008         }
1009
1010         /**
1011         *       Reads the response from the server, and selects the correct parameters
1012         *       which are sent in a GET request to the server asking it to confirm
1013         *       the upload and accept the data into the database. Notably, the island id
1014         *       and ocean id are determined, while other parameter such as the filename
1015         *       are determined from the hidden form fields.
1016         *
1017         *       @param in stream of data from the server to read
1018         */
1019         private boolean finishUpload(InputStream in) throws IOException {
1020                 String html = readstreamstring(in);
1021                 debug_write_stringdata("pctb-initial.html", html);
1022                 Matcher m;
1023
1024                 Pattern params = Pattern.compile("(?s)<input type=\"hidden\" name=\"action\" value=\"setisland\" />.+?<input type=\"hidden\" name=\"forcereload\" value=\"([^\"]+)\" />.+?<input type=\"hidden\" name=\"filename\" value=\"([^\"]+)\" />");
1025                 m = params.matcher(html);
1026                 if(!m.find()) {
1027                         error_html("The PCTB server returned unusual data. Maybe you're using an old version of the uploader?",
1028                                    html);
1029                         return false;
1030                 }
1031                 String forceReload = m.group(1);
1032                 String filename = m.group(2);
1033
1034                 Pattern oceanNumPat = Pattern.compile("<option value=\"(\\d+)\">"+oceanName+"</option>");
1035                 m = oceanNumPat.matcher(html);
1036                 if (!m.find()) {
1037                         error_html("Unable to find the ocean in the server's list of oceans!", html);
1038                         return false;
1039                 }
1040                 String oceanNum = m.group(1);
1041
1042                 Pattern oceanIslandNum = Pattern.compile("islands\\[" + oceanNum + "\\]\\[\\d+\\]=new Option\\(\"" + islandName + "\",(\\d+)");
1043                 m = oceanIslandNum.matcher(html);
1044                 if(!m.find()) {
1045                         error_html("This does not seem to be a valid island! Unable to upload.", html);
1046                         return false;
1047                 }
1048                 String islandNum = m.group(1);
1049
1050                 URL get = new URL(PCTB_HOST_URL + "upload.php?action=setisland&ocean=" + oceanNum + "&island="
1051                         + islandNum + "&forcereload=" + forceReload + "&filename=" + filename);
1052                 String complete = readstreamstring(get.openStream());
1053                 debug_write_stringdata("pctb-final.html", complete);
1054                 Pattern done = Pattern.compile("Your data has been integrated into the database. Thank you!");
1055                 m = done.matcher(complete);
1056                 if(m.find()) {
1057                         return true;
1058                 } else {
1059                         error_html("Something was wrong with the final upload parameters!", complete);
1060                         return false;
1061                 }
1062         }
1063
1064     private InputStream post_for_yarrg(ClientHttpRequest http) throws IOException {
1065         if (!http.post()) {
1066             String err = readstreamstring(http.resultstream());
1067             error("<html><h1>Error reported by YARRG server</h1>\n" + err);
1068             return null;
1069         }
1070         return http.resultstream();
1071     }
1072
1073     private String getYarrgTimestamp() throws IOException {
1074         ClientHttpRequest http = new ClientHttpRequest (YARRG_URL);
1075         http.setParameter("clientname", YARRG_CLIENTNAME);
1076         http.setParameter("clientversion", YARRG_CLIENTVERSION);
1077         http.setParameter("clientfixes", YARRG_CLIENTFIXES);
1078         http.setParameter("requesttimestamp", "y");
1079         InputStream in = post_for_yarrg(http);
1080         if (in == null) return null;
1081         BufferedReader br = new BufferedReader(new InputStreamReader(in));
1082         String tsresult = br.readLine();
1083         return tsresult.substring(3, tsresult.length()-1);
1084     }
1085
1086     private boolean runYarrg(String timestamp, String ocean, String island, String yarrgdata) throws IOException {
1087         ByteArrayOutputStream bos = new ByteArrayOutputStream();
1088         BufferedOutputStream bufos = new BufferedOutputStream(new GZIPOutputStream(bos));
1089         bufos.write(yarrgdata.getBytes() );
1090         bufos.close();
1091         byte[] compressed = bos.toByteArray();
1092         debug_write_bytes("yarrg-deduped.tsv.gz", compressed);
1093         ByteArrayInputStream file = new ByteArrayInputStream(compressed);
1094
1095         ClientHttpRequest http = new ClientHttpRequest (YARRG_URL);
1096         http.setParameter("clientname", YARRG_CLIENTNAME);
1097         http.setParameter("clientversion", YARRG_CLIENTVERSION);
1098         http.setParameter("clientfixes", YARRG_CLIENTFIXES);
1099         http.setParameter("timestamp", timestamp);
1100         http.setParameter("ocean", ocean);
1101         http.setParameter("island", island);
1102         http.setParameter("data", "deduped.tsv.gz", file, "application/octet-stream");
1103         InputStream in = post_for_yarrg(http);
1104         if (in == null) return false;
1105         String output = readstreamstring(in);
1106         if (!output.startsWith("OK")) {
1107             error("<html><h1>Unexpected output from YARRG server</h1>\n" + output);
1108             return false;
1109         }
1110         debug_write_stringdata("yarrg-result.txt", output);
1111         return true;
1112     }
1113
1114     private int calculateArbitrageCommodity(ArrayList<SortedSet<int[]>> arb_bs) {
1115         // if (dtxt!=null) dtxt.println("ARBITRAGE?");
1116         int profit = 0;
1117         SortedSet<int[]> buys = arb_bs.get(0);
1118         SortedSet<int[]> sells = arb_bs.get(1);
1119         while (true) {
1120             int[] buy, sell;
1121             try {
1122                 // NB "sell" means they sell, ie we buy
1123                 sell = sells.last();
1124                 buy = buys.first();
1125             } catch (NoSuchElementException e) {
1126                 break;
1127             }
1128
1129             int unitprofit = buy[0] - sell[0];
1130             int count = buy[1] < sell[1] ? buy[1] : sell[1];
1131             // if (dtxt!=null) dtxt.println(" sell @"+sell[0]+" x"+sell[1]+" buy @"+buy[0]+" x"+buy[1]
1132             //                 +" => x"+count+" @"+unitprofit);
1133
1134             if (unitprofit <= 0)
1135                 break;
1136
1137             profit += count * unitprofit;
1138             buy[1] -= count;
1139             sell[1] -= count;
1140             if (buy[1]==0) buys.remove(buy);
1141             if (sell[1]==0) sells.remove(sell);
1142         }
1143         // if (dtxt!=null) dtxt.println(" PROFIT "+profit);
1144         return profit;
1145     }
1146
1147     private class arbitrageOfferComparator implements Comparator {
1148         public int compare(Object o1, Object o2) {
1149             int p1 = ((int[])o1)[0];
1150             int p2 = ((int[])o2)[0];
1151             return p2 - p1;
1152         }
1153     }
1154
1155     private @SuppressWarnings("unchecked")
1156     void calculateArbitrage(ArrayList<ArrayList<String>> data) {
1157         int arbitrage = 0;
1158         ArrayList<SortedSet<int[]>> arb_bs = null;
1159         String lastcommod = null;
1160         Comparator compar = new arbitrageOfferComparator();
1161
1162         for (ArrayList<String> row : data) {
1163             String thiscommod = row.get(0);
1164             // if (dtxt!=null) dtxt.println("ROW "+row.toString());
1165             if (lastcommod == null || !thiscommod.equals(lastcommod)) {
1166                 if (lastcommod != null)
1167                     arbitrage += calculateArbitrageCommodity(arb_bs);
1168                 // if (dtxt!=null) dtxt.println("ROW rdy");
1169                 arb_bs = new ArrayList<SortedSet<int[]>>(2);
1170                 arb_bs.add(0, new TreeSet<int[]>(compar));
1171                 arb_bs.add(1, new TreeSet<int[]>(compar));
1172                 // if (dtxt!=null) dtxt.println("ROW init");
1173                 lastcommod = thiscommod;
1174             }
1175             for (int bs = 0; bs < 2; bs++) {
1176                 String pricestr = row.get(bs*2 + 2);
1177                 if (pricestr == null)
1178                     continue;
1179                 int[] entry = new int[2];
1180                 // if (dtxt!=null) dtxt.println("ROW BS "+bs);
1181                 entry[0] = parseQty(pricestr);
1182                 entry[1] = parseQty(row.get(bs*2 + 3));
1183                 arb_bs.get(bs).add(entry);
1184             }
1185         }
1186         arbitrage += calculateArbitrageCommodity(arb_bs);
1187         if (arbitrage != 0) {
1188             arbitrageResult.setText("<html><strong>arbitrage: "+arbitrage+" poe</strong>");
1189         } else {
1190             arbitrageResult.setText("no arbitrage");
1191         }
1192     }
1193
1194 }