src/com/tedpearson/ypp/market/MarketUploader.java

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