1 /*
   2  * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package build.tools.jigsaw;
  27 
  28 import java.io.IOException;
  29 import java.io.PrintStream;
  30 import java.lang.module.Configuration;
  31 import java.lang.module.ModuleDescriptor;
  32 import java.lang.module.ModuleFinder;
  33 import java.lang.module.ModuleReference;
  34 import java.lang.module.ResolvedModule;
  35 import java.nio.file.Files;
  36 import java.nio.file.Path;
  37 import java.nio.file.Paths;
  38 import java.util.Arrays;
  39 import java.util.Comparator;
  40 import java.util.Date;
  41 import java.util.Enumeration;
  42 import java.util.HashMap;
  43 import java.util.HashSet;
  44 import java.util.Map;
  45 import java.util.Set;
  46 import java.util.stream.Collectors;
  47 import java.util.zip.ZipEntry;
  48 import java.util.zip.ZipFile;
  49 import static java.lang.module.ModuleDescriptor.*;
  50 import static build.tools.jigsaw.ModuleSummary.HtmlDocument.Selector.*;
  51 import static build.tools.jigsaw.ModuleSummary.HtmlDocument.Division.*;
  52 
  53 public class ModuleSummary {
  54     private static final String USAGE = "Usage: ModuleSummary --module-path <dir> -o <outfile> [--root mn]*";
  55 
  56     public static void main(String[] args) throws Exception {
  57         int i=0;
  58         Path modpath = null;
  59         Path outfile = null;
  60         Set<String> roots = new HashSet<>();
  61         while (i < args.length && args[i].startsWith("-")) {
  62             String arg = args[i++];
  63             switch (arg) {
  64                 case "--module-path":
  65                     modpath = Paths.get(args[i++]);
  66                     break;
  67                 case "-o":
  68                     outfile = Paths.get(args[i++]);
  69                     break;
  70                 case "--root":
  71                     roots.add(args[i++]);
  72                 default:
  73                     System.err.println(USAGE);
  74                     System.exit(-1);
  75             }
  76         }
  77         if (outfile == null || modpath == null) {
  78             System.err.println(USAGE);
  79             System.exit(1);
  80         }
  81         Path dir = outfile.getParent() != null ? outfile.getParent() : Paths.get(".");
  82         Files.createDirectories(dir);
  83 
  84         Map<String, ModuleSummary> modules = new HashMap<>();
  85         Set<ModuleReference> mrefs = ModuleFinder.ofSystem().findAll();
  86         for (ModuleReference mref : mrefs) {
  87             String mn = mref.descriptor().name();
  88             Path jmod = modpath.resolve(mn + ".jmod");
  89             modules.put(mn, new ModuleSummary(mref, jmod));
  90         }
  91 
  92         if (roots.isEmpty()) {
  93             roots.addAll(modules.keySet());
  94         }
  95         genReport(outfile, modules, roots, "JDK Module Summary");
  96     }
  97 
  98     static void genReport(Path outfile, Map<String, ModuleSummary> modules, Set<String> roots, String title)
  99         throws IOException
 100     {
 101         Configuration cf = resolve(roots);
 102         try (PrintStream out = new PrintStream(Files.newOutputStream(outfile))) {
 103             HtmlDocument doc = new HtmlDocument(title, modules);
 104             Set<ModuleDescriptor> descriptors = cf.modules().stream()
 105                     .map(ResolvedModule::reference)
 106                     .map(ModuleReference::descriptor)
 107                     .collect(Collectors.toSet());
 108             doc.writeTo(out, descriptors);
 109         }
 110     }
 111 
 112     private final String name;
 113     private final ModuleDescriptor descriptor;
 114     private final JmodInfo jmodInfo;
 115     ModuleSummary(ModuleReference mref, Path jmod) throws IOException {
 116         this.name = mref.descriptor().name();
 117         this.descriptor = mref.descriptor();
 118         this.jmodInfo = new JmodInfo(jmod);
 119     }
 120 
 121     String name() {
 122         return name;
 123     }
 124 
 125     long uncompressedSize() {
 126         return jmodInfo.size;
 127     }
 128 
 129     long jmodFileSize() {
 130         return jmodInfo.filesize; // estimated compressed size
 131     }
 132 
 133     ModuleDescriptor descriptor() {
 134         return descriptor;
 135     }
 136 
 137     int numClasses() {
 138         return jmodInfo.classCount;
 139     }
 140 
 141     long classBytes() {
 142         return jmodInfo.classBytes;
 143     }
 144 
 145     int numResources() {
 146         return jmodInfo.resourceCount;
 147     }
 148 
 149     long resourceBytes() {
 150         return jmodInfo.resourceBytes;
 151     }
 152 
 153     int numConfigs() {
 154         return jmodInfo.configCount;
 155     }
 156     long configBytes() {
 157         return jmodInfo.configBytes;
 158     }
 159     int numCommands() {
 160         return jmodInfo.nativeCmds.size();
 161     }
 162 
 163     long commandBytes() {
 164         return jmodInfo.nativeCmds.values().stream()
 165                 .mapToLong(l -> l.longValue()).sum() - jmodInfo.debugInfoCmdBytes;
 166     }
 167     int numCommandsDebug() {
 168         return jmodInfo.debugInfoCmdCount;
 169     }
 170     long commandDebugBytes() {
 171         return jmodInfo.debugInfoCmdBytes;
 172     }
 173     int numNativeLibraries() {
 174         return jmodInfo.nativeLibs.size();
 175     }
 176 
 177     long nativeLibrariesBytes() {
 178         return jmodInfo.nativeLibs.values().stream()
 179                 .mapToLong(l -> l.longValue()).sum() - jmodInfo.debugInfoLibBytes;
 180     }
 181     int numNativeLibrariesDebug() {
 182         return jmodInfo.debugInfoLibCount;
 183     }
 184 
 185     long nativeLibrariesDebugBytes() {
 186         return jmodInfo.debugInfoLibBytes;
 187     }
 188 
 189     Map<String,Long> commands() {
 190         return jmodInfo.nativeCmds;
 191     }
 192 
 193     Map<String,Long> nativeLibs() {
 194         return jmodInfo.nativeLibs;
 195     }
 196 
 197     Map<String,Long> configFiles() {
 198         return jmodInfo.configFiles;
 199     }
 200 
 201 
 202     static class JmodInfo {
 203         final long size;
 204         final long filesize;
 205         final int  classCount;
 206         final long classBytes;
 207         final int  resourceCount;
 208         final long resourceBytes;
 209         final int  configCount;
 210         final long configBytes;
 211         final int  debugInfoLibCount;
 212         final long debugInfoLibBytes;
 213         final int  debugInfoCmdCount;
 214         final long debugInfoCmdBytes;
 215         final Map<String,Long> configFiles = new HashMap<>();
 216         final Map<String,Long> nativeCmds = new HashMap<>();
 217         final Map<String,Long> nativeLibs = new HashMap<>();
 218 
 219         JmodInfo(Path jmod) throws IOException {
 220             long total = 0;
 221             long cBytes = 0, rBytes = 0, cfBytes = 0, dizLibBytes = 0, dizCmdBytes = 0;
 222             int  cCount = 0, rCount = 0, cfCount = 0, dizLibCount = 0, dizCmdCount = 0;
 223             try (ZipFile zf = new ZipFile(jmod.toFile())) {
 224                 for (Enumeration<? extends ZipEntry> e = zf.entries(); e.hasMoreElements(); ) {
 225                     ZipEntry ze = e.nextElement();
 226                     String fn = ze.getName();
 227                     int pos = fn.indexOf('/');
 228                     String dir = fn.substring(0, pos);
 229                     String filename = fn.substring(fn.lastIndexOf('/') + 1);
 230                     // name shown in the column
 231                     String name = filename;
 232 
 233                     long len = ze.getSize();
 234                     total += len;
 235                     switch (dir) {
 236                         case NATIVE_LIBS:
 237                             nativeLibs.put(name, len);
 238                             if (filename.endsWith(".diz")) {
 239                                 dizLibCount++;
 240                                 dizLibBytes += len;
 241                             }
 242                             break;
 243                         case NATIVE_CMDS:
 244                             nativeCmds.put(name, len);
 245                             if (filename.endsWith(".diz")) {
 246                                 dizCmdCount++;
 247                                 dizCmdBytes += len;
 248                             }
 249                             break;
 250                         case CLASSES:
 251                             if (filename.endsWith(".class")) {
 252                                 cCount++;
 253                                 cBytes += len;
 254                             } else {
 255                                 rCount++;
 256                                 rBytes += len;
 257                             }
 258                             break;
 259                         case CONFIG:
 260                             configFiles.put(name, len);
 261                             cfCount++;
 262                             cfBytes += len;
 263                             break;
 264                         default:
 265                             break;
 266                     }
 267                 }
 268                 this.filesize = jmod.toFile().length();
 269                 this.classCount = cCount;
 270                 this.classBytes = cBytes;
 271                 this.resourceCount = rCount;
 272                 this.resourceBytes = rBytes;
 273                 this.configCount = cfCount;
 274                 this.configBytes = cfBytes;
 275                 this.size = total;
 276                 this.debugInfoLibCount = dizLibCount;
 277                 this.debugInfoLibBytes = dizLibBytes;
 278                 this.debugInfoCmdCount = dizCmdCount;
 279                 this.debugInfoCmdBytes = dizCmdBytes;
 280             }
 281         }
 282 
 283         static final String NATIVE_LIBS = "native";
 284         static final String NATIVE_CMDS = "bin";
 285         static final String CLASSES     = "classes";
 286         static final String CONFIG      = "conf";
 287 
 288         static final String MODULE_ID = "module/id";
 289         static final String MODULE_MAIN_CLASS = "module/main-class";
 290     }
 291 
 292     static Configuration resolve(Set<String> roots) {
 293         return Configuration.empty()
 294             .resolveRequires(ModuleFinder.ofSystem(),
 295                              ModuleFinder.of(),
 296                              roots);
 297     }
 298 
 299     static class HtmlDocument {
 300         final String title;
 301         final Map<String, ModuleSummary> modules;
 302         boolean requiresTransitiveNote = false;
 303         boolean aggregatorNote = false;
 304         boolean totalBytesNote = false;
 305         HtmlDocument(String title, Map<String, ModuleSummary> modules) {
 306             this.title = title;
 307             this.modules = modules;
 308         }
 309 
 310         void writeTo(PrintStream out, Set<ModuleDescriptor> selectedModules) {
 311             out.format("<html><head>%n");
 312             out.format("<title>%s</title>%n", title);
 313             // stylesheet
 314             Arrays.stream(HtmlDocument.STYLES).forEach(out::println);
 315             out.format("</head>%n");
 316 
 317             // body begins
 318             out.format("<body>%n");
 319 
 320             // title and date
 321             out.println(DOCTITLE.toString(title));
 322             out.println(VERSION.toString(String.format("%tc", new Date())));
 323 
 324             // total modules and sizes
 325             long totalBytes = selectedModules.stream()
 326                     .map(ModuleDescriptor::name)
 327                     .map(modules::get)
 328                     .mapToLong(ModuleSummary::uncompressedSize)
 329                     .sum();
 330             String[] sections = new String[] {
 331                     String.format("%s: %d", "Total modules", selectedModules.size()),
 332                     String.format("%s: %,d bytes (%s %s)", "Total size",
 333                                   totalBytes,
 334                                   System.getProperty("os.name"),
 335                                   System.getProperty("os.arch"))
 336             };
 337             out.println(SECTION.toString(sections));
 338 
 339             // write table and header
 340             out.println(String.format("<table class=\"%s\">", MODULES));
 341             out.println(header("Module", "Requires", "Exports",
 342                     "Services", "Commands/Native Libraries/Configs"));
 343 
 344             // write contents - one row per module
 345             selectedModules.stream()
 346                     .sorted(Comparator.comparing(ModuleDescriptor::name))
 347                     .map(m -> modules.get(m.name()))
 348                     .map(ModuleTableRow::new)
 349                     .forEach(table -> table.writeTo(out));
 350 
 351             out.format("</table>");  // end table
 352             out.format("</body>");
 353             out.println("</html>");
 354         }
 355 
 356         String header(String... columns) {
 357             StringBuilder sb = new StringBuilder();
 358             sb.append("<tr>");
 359             Arrays.stream(columns)
 360                     .forEach(cn -> sb.append("  <th>").append(cn).append("</th>").append("\n"));
 361             sb.append("</tr>");
 362             return sb.toString();
 363         }
 364 
 365         static enum Selector {
 366             MODULES("modules"),
 367             MODULE("module"),
 368             MODULE_DEF("code name def"),
 369             AGGREGATOR("code name def agg"),
 370             REQUIRES("code"),
 371             REQUIRES_PUBLIC("code reexp"),
 372             BR("br"),
 373             CODE("code"),
 374             NUMBER("number"),;
 375             final String name;
 376             Selector(String name) {
 377                 this.name = name;
 378             }
 379             @Override
 380             public String toString() {
 381                 return name;
 382             }
 383         }
 384 
 385         static enum Division {
 386             DOCTITLE("doctitle"),
 387             VERSION("versions"),
 388             SECTION("section");
 389             final String name;
 390 
 391             Division(String name) {
 392                 this.name = name;
 393             }
 394 
 395             public String toString(String... lines) {
 396                 String value = Arrays.stream(lines).collect(Collectors.joining("<br>\n"));
 397                 return "<div class=\"" + name + "\">" + value + "</div>";
 398             }
 399         }
 400 
 401         class ModuleTableRow {
 402             private final ModuleSummary ms;
 403             private final Set<ModuleDescriptor> deps;
 404             private final int maxRows;
 405             private final boolean aggregator;
 406             ModuleTableRow(ModuleSummary ms) {
 407                 this.ms = ms;
 408                 Configuration cf = resolve(Set.of(ms.name()));
 409                 this.deps = cf.modules().stream()
 410                         .map(ResolvedModule::reference)
 411                         .map(ModuleReference::descriptor)
 412                         .collect(Collectors.toSet());
 413                 int count = (ms.numClasses() > 0 ? 1 : 0) +
 414                             (ms.numResources() > 0 ? 1 : 0) +
 415                             (ms.numConfigs() > 0 ? 1 : 0) +
 416                             (ms.numNativeLibraries() > 0 ? 1 : 0) +
 417                             (ms.numNativeLibrariesDebug() > 0 ? 1 : 0) +
 418                             (ms.numCommands() > 0 ? 1 : 0) +
 419                             (ms.numCommandsDebug() > 0 ? 1 : 0);
 420                 this.aggregator = ms.numClasses() == 1 && count == 1; // only module-info.class
 421 
 422                 // 5 fixed rows (name + 2 transitive count/size + 2 blank rows)
 423                 this.maxRows = 5 + count + (aggregator && !aggregatorNote ? 2 : 0);
 424             }
 425 
 426             public void writeTo(PrintStream out) {
 427                 out.println(String.format("<tr id=\"%s\" class=\"%s\">", ms.name(), MODULE));
 428                 out.println(moduleColumn());
 429                 out.println(requiresColumn());
 430                 out.println(exportsColumn());
 431                 out.println(servicesColumn());
 432                 out.println(otherSectionColumn());
 433                 out.println("</td>");
 434                 out.println("</tr>");
 435             }
 436 
 437             public String moduleColumn() {
 438                 // module name
 439                 StringBuilder sb = new StringBuilder("  ");
 440                 sb.append("<td>");
 441                 sb.append(String.format("<table class=\"%s\">", MODULE)).append("\n");
 442                 sb.append(moduleName(ms.name()));
 443                 sb.append(blankRow());
 444                 // metadata
 445                 sb.append(toTableRow("class", "classes", ms.numClasses(), ms.classBytes()));
 446                 sb.append(toTableRow("resource", "resources", ms.numResources(), ms.resourceBytes()));
 447                 sb.append(toTableRow("config", "configs", ms.numConfigs(), ms.configBytes()));
 448                 sb.append(toTableRow("native library", "native libraries",
 449                                      ms.numNativeLibraries(), ms.nativeLibrariesBytes()));
 450                 sb.append(toTableRow("native library debug", "native libraries debug",
 451                                      ms.numNativeLibrariesDebug(), ms.nativeLibrariesDebugBytes()));
 452                 sb.append(toTableRow("command", "commands", ms.numCommands(), ms.commandBytes()));
 453                 sb.append(toTableRow("command debug", "commands debug",
 454                                      ms.numCommandsDebug(), ms.commandDebugBytes()));
 455                 sb.append(blankRow());
 456 
 457                 // transitive dependencies
 458                 long reqBytes = deps.stream()
 459                                     .filter(d -> !d.name().equals(ms.name()))
 460                                     .mapToLong(d -> modules.get(d.name()).uncompressedSize())
 461                                     .sum();
 462                 long reqJmodFileSize = deps.stream()
 463                                             .mapToLong(d -> modules.get(d.name()).jmodFileSize())
 464                                             .sum();
 465                 // size
 466                 if (totalBytesNote) {
 467                     sb.append(toTableRow("Total bytes", ms.uncompressedSize()));
 468                     sb.append(toTableRow("Total bytes of dependencies", reqBytes));
 469                 } else {
 470                     // print footnote
 471                     sb.append(toTableRow("Total bytes<sup>1</sup>", ms.uncompressedSize()));
 472                     sb.append(toTableRow("Total bytes of dependencies<sup>2</sup>", reqBytes));
 473                 }
 474                 String files = deps.size() == 1 ? "file" : "files";
 475                 sb.append(toTableRow(String.format("Total jmod bytes (%d %s)", deps.size(), files), reqJmodFileSize));
 476 
 477                 if (aggregator && !aggregatorNote) {
 478                     aggregatorNote = true;
 479                     sb.append(blankRow());
 480                     sb.append(toTableRow("<i>* aggregator is a module with module-info.class only</i>", BR));
 481                 }
 482                 if (!totalBytesNote) {
 483                     totalBytesNote = true;
 484                     sb.append(blankRow());
 485                     sb.append(toTableRow("<i><sup>1</sup>sum of all files including debug files</i>", BR));
 486                     sb.append(toTableRow("<i><sup>2</sup>sum of direct and indirect dependencies</i>", BR));
 487                 }
 488                 sb.append("</table>").append("</td>");
 489                 return sb.toString();
 490             }
 491 
 492             private String moduleName(String mn) {
 493                 if (aggregator) {
 494                     StringBuilder sb = new StringBuilder();
 495                     sb.append(String.format("<tr><td colspan=\"2\"><span class=\"%s\">", AGGREGATOR))
 496                       .append(mn)
 497                       .append("</span>").append("&nbsp;&nbsp;");
 498                     if (!aggregatorNote) {
 499                         sb.append("(aggregator<sup>*</sup>)");
 500                     } else {
 501                         sb.append("(aggregator)");
 502                     }
 503                     sb.append("</td></tr>");
 504                     return sb.toString();
 505                 } else {
 506                     return toTableRow(mn, MODULE_DEF);
 507                 }
 508             }
 509 
 510             public String requiresColumn() {
 511                 StringBuilder sb = new StringBuilder();
 512                 sb.append(String.format("<td>"));
 513                 boolean footnote = requiresTransitiveNote;
 514                 ms.descriptor().requires().stream()
 515                         .sorted(Comparator.comparing(Requires::name))
 516                         .forEach(r -> {
 517                             boolean requiresTransitive = r.modifiers().contains(Requires.Modifier.TRANSITIVE);
 518                             Selector sel = requiresTransitive ? REQUIRES_PUBLIC : REQUIRES;
 519                             String req = String.format("<a class=\"%s\" href=\"#%s\">%s</a>",
 520                                                        sel, r.name(), r.name());
 521                             if (!requiresTransitiveNote && requiresTransitive) {
 522                                 requiresTransitiveNote = true;
 523                                 req += "<sup>*</sup>";
 524                             }
 525                             sb.append(req).append("\n").append("<br>");
 526                         });
 527 
 528                 if (!ms.name().equals("java.base")) {
 529                     int directDeps = ms.descriptor().requires().size();
 530                     int indirectDeps = deps.size()-directDeps-1;
 531                     for (int i=directDeps; i< (maxRows-1); i++) {
 532                         sb.append("<br>");
 533                     }
 534                     sb.append("<br>");
 535                     sb.append("<i>+").append(indirectDeps).append(" transitive dependencies</i>");
 536                 }
 537                 if (footnote != requiresTransitiveNote) {
 538                     sb.append("<br><br>").append("<i>* bold denotes requires transitive</i>");
 539                 }
 540                 sb.append("</td>");
 541                 return sb.toString();
 542             }
 543 
 544             public String exportsColumn() {
 545                 StringBuilder sb = new StringBuilder();
 546                 sb.append(String.format("  <td class=\"%s\">", CODE));
 547                 ms.descriptor().exports().stream()
 548                         .sorted(Comparator.comparing(Exports::source))
 549                         .filter(e -> !e.isQualified())
 550                         .forEach(e -> sb.append(e.source()).append("<br>").append("\n"));
 551                 sb.append("</td>");
 552                 return sb.toString();
 553             }
 554 
 555             public String servicesColumn() {
 556                 StringBuilder sb = new StringBuilder();
 557                 sb.append(String.format("  <td class=\"%s\">", CODE));
 558                 ms.descriptor().uses().stream()
 559                         .sorted()
 560                         .forEach(s -> sb.append("uses ").append(s).append("<br>").append("\n"));
 561                 ms.descriptor().provides().stream()
 562                         .sorted(Comparator.comparing(Provides::service))
 563                         .map(p -> String.format("provides %s<br>&nbsp;&nbsp;&nbsp;&nbsp;with %s",
 564                                                 p.service(), p.providers()))
 565                         .forEach(p -> sb.append(p).append("<br>").append("\n"));
 566                 sb.append("</td>");
 567                 return sb.toString();
 568             }
 569 
 570             public String otherSectionColumn() {
 571                 StringBuilder sb = new StringBuilder();
 572                 sb.append("<td>");
 573                 sb.append(String.format("<table class=\"%s\">", MODULE)).append("\n");
 574                 // commands
 575                 if (ms.numCommands() > 0) {
 576                     sb.append(toTableRow("bin/", CODE));
 577                     ms.commands().entrySet().stream()
 578                             .sorted(Map.Entry.comparingByKey())
 579                             .forEach(e -> sb.append(toTableRow(e.getKey(), e.getValue(), CODE)));
 580                     sb.append(blankRow());
 581                 }
 582 
 583                 // native libraries
 584                 if (ms.numNativeLibraries() > 0) {
 585                     sb.append(toTableRow("lib/", CODE));
 586                     ms.nativeLibs().entrySet().stream()
 587                             .sorted(Map.Entry.comparingByKey())
 588                             .forEach(e -> sb.append(toTableRow(e.getKey(), e.getValue(), CODE)));
 589                     sb.append(blankRow());
 590                 }
 591 
 592                 // config files
 593                 if (ms.numConfigs() > 0) {
 594                     sb.append(toTableRow("conf/", CODE));
 595                     ms.configFiles().entrySet().stream()
 596                             .sorted(Map.Entry.comparingByKey())
 597                             .forEach(e -> sb.append(toTableRow(e.getKey(), e.getValue(), CODE)));
 598                 }
 599                 // totals
 600                 sb.append("</table>").append("</td>");
 601                 return sb.toString();
 602             }
 603 
 604             private String blankRow() {
 605                 return toTableRow("&nbsp;", BR);
 606             }
 607 
 608             private String toTableRow(String col, Selector selector) {
 609                 TableDataBuilder builder = new TableDataBuilder();
 610                 builder.colspan(selector, 2, col);
 611                 return builder.build();
 612             }
 613 
 614             private String toTableRow(String col1, long col2) {
 615                 return toTableRow(col1, col2, BR);
 616             }
 617 
 618             private String toTableRow(String col1, long col2, Selector selector) {
 619                 TableDataBuilder builder = new TableDataBuilder();
 620                 builder.data(selector, col1);
 621                 builder.data(col2);
 622                 return builder.build();
 623 
 624             }
 625 
 626             private String toTableRow(String singular, String plural, int count, long bytes) {
 627                 if (count == 0) {
 628                     return "";
 629                 }
 630                 TableDataBuilder builder = new TableDataBuilder();
 631                 if (count == 1) {
 632                     builder.data(count + " " + singular);
 633                 } else {
 634                     builder.data(count + " " + plural);
 635                 }
 636                 builder.data(bytes);
 637                 return builder.build();
 638             }
 639 
 640             class TableDataBuilder {
 641                 private final StringBuilder sb;
 642                 TableDataBuilder() {
 643                     this.sb = new StringBuilder("<tr>");
 644                 }
 645                 TableDataBuilder data(String s) {
 646                     data(BR, s);
 647                     return this;
 648                 }
 649                 TableDataBuilder data(long num) {
 650                     data(NUMBER, String.format("%,d", num));
 651                     return this;
 652                 }
 653                 TableDataBuilder colspan(Selector selector, int columns, String data) {
 654                     sb.append("<td colspan=\"").append(columns).append("\">");
 655                     sb.append("<span class=\"").append(selector).append("\">");
 656                     sb.append(data).append("</span></td>");
 657                     return this;
 658                 }
 659 
 660                 TableDataBuilder data(Selector selector, String data) {
 661                     sb.append("<td class=\"").append(selector).append("\">");
 662                     sb.append(data).append("</td>");
 663                     return this;
 664                 }
 665                 String build() {
 666                     sb.append("</tr>");
 667                     return sb.toString();
 668                 }
 669             }
 670         }
 671 
 672         private static final String[] STYLES = new String[]{
 673                 "<link rel=\"stylesheet\" type=\"text/css\" href=\"/.fonts/dejavu.css\"/>",
 674                 "<style type=\"text/css\">",
 675                 "        HTML, BODY, DIV, SPAN, APPLET, OBJECT, IFRAME, H1, H2, H3, H4, H5, H6, P,",
 676                 "        BLOCKQUOTE, PRE, A, ABBR, ACRONYM, ADDRESS, BIG, CITE, CODE, DEL, DFN, EM,",
 677                 "        IMG, INS, KBD, Q, S, SAMP, SMALL, STRIKE, STRONG, SUB, SUP, TT, VAR, B, U,",
 678                 "        I, CENTER, DL, DT, DD, OL, UL, LI, FIELDSET, FORM, LABEL, LEGEND, TABLE,",
 679                 "        CAPTION, TBODY, TFOOT, THEAD, TR, TH, TD, ARTICLE, ASIDE, CANVAS, DETAILS,",
 680                 "        EMBED, FIGURE, FIGCAPTION, FOOTER, HEADER, HGROUP, MENU, NAV, OUTPUT, RUBY,",
 681                 "        SECTION, SUMMARY, TIME, MARK, AUDIO, VIDEO {",
 682                 "          margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit;",
 683                 "          vertical-align: baseline; }",
 684                 "        ARTICLE, ASIDE, DETAILS, FIGCAPTION, FIGURE, ",
 685                 "        FOOTER, HEADER, HGROUP, MENU, NAV, SECTION { display: block; }",
 686                 "        BLOCKQUOTE, Q { quotes: none; }",
 687                 "        BLOCKQUOTE:before, BLOCKQUOTE:after, Q:before, Q:after {",
 688                 "                content: ''; content: none; }",
 689                 "        TABLE { border-collapse: collapse; border-spacing: 0; }",
 690                 "        A { text-decoration: none; }",
 691                 "        A:link { color: #437291; }",
 692                 "        A:visited { color: #666666; }",
 693                 "        A.anchor:link, A.anchor:visited { color: black; }",
 694                 "        A[href]:hover { color: #e76f00; }",
 695                 "        A IMG { border-width: 0px; }",
 696                 "        HTML { font-size: 20px; } /* baseline grid */",
 697                 "        HTML > BODY { font-size: 14px; }",
 698                 "        BODY {",
 699                 "          background: white;",
 700                 "          margin: 40px;",
 701                 "          margin-bottom: 150%;",
 702                 "          line-height: 20px;",
 703                 "          -webkit-text-size-adjust: 100%; /* iOS */",
 704                 "          color: #222;",
 705                 "        }",
 706                 "        BODY { font-family: \"DejaVu Serif\", \"Lucida Bright\", \"Bookman Old Style\",",
 707                 "                            Georgia, serif; }",
 708                 "        CODE, TT, .jref, DIV.spec .open, TABLE.profiles {",
 709                 "          font-family: \"DejaVu Sans\", \"Lucida Sans\", Helvetica, sans-serif; }",
 710                 "        PRE, .code { font-family: \"DejaVu Sans Mono\", \"Bitstream Vera Sans Mono\",",
 711                 "                            Monaco, \"Courier New\", monospace; }",
 712                 "        H1, H2, H3, H4 { color: green; font-weight: bold; }",
 713                 "        I { font-style: italic; }",
 714                 "        TH { font-weight: bold; }",
 715                 "        P { text-indent: 40px; }",
 716                 "        P:first-child, UL + P, OL + P, BLOCKQUOTE + P, TABLE + P, P.subsection,",
 717                 "          P.break, DIV.profiles-table + P { text-indent: 0; }",
 718                 "        P.break { margin-top: 10px; }",
 719                 "        P.subsection { margin-top: 20px; }",
 720                 "        P.subsection SPAN.title { font-weight: bold; padding-right: 20px; }",
 721                 "        UL, OL { margin: 10px 0; padding-left: 40px; }",
 722                 "        LI { margin-bottom: 10px; }",
 723                 "        UL.compact LI { margin-bottom: 0; }",
 724                 "        PRE { padding: 0; margin: 10px 0 10px 20px; background: #eee; width: 45em; }",
 725                 "        BLOCKQUOTE { margin: 10px 0; margin-left: 20px; }",
 726                 "        LI BLOCKQUOTE { margin-left: 0; }",
 727                 "        UL LI { list-style-type: square; }",
 728                 "        .todo { color: darkred; text-align: right; }",
 729                 "        .error { color: red; font-weight: bold; }",
 730                 "        .warn { color: #ee0000; font-weight: bold; }",
 731                 "        DIV.doctitle { margin-top: -13px;",
 732                 "          font-size: 22px; line-height: 40px; font-weight: bold; }",
 733                 "        DIV.twarn { color: #cc0000; font-weight: bold; margin-bottom: 9px; }",
 734                 "        DIV.subtitle { margin-top: 2px; font-size: 18px; font-weight: bold; }",
 735                 "        DIV.authors { margin-top: 10px; margin-bottom: 10px; font-size: 16px; }",
 736                 "        DIV.author A { font-style: italic; }",
 737                 "        DIV.version { margin-top: 10px; font-size: 12px; }",
 738                 "        DIV.version, DIV.legal-notice { font-size: 12px; line-height: 15px; }",
 739                 "        SPAN.hash { font-size: 9px; }",
 740                 "        DIV.version SPAN.modified { color: green; font-weight: bold; }",
 741                 "        DIV.head { margin-bottom: 20px; }",
 742                 "        DIV.section > DIV.title, DIV.section DIV.number SPAN {",
 743                 "          font-size: 15px; font-weight: bold; }",
 744                 "        TABLE { border-collapse: collapse; border: none; }",
 745                 "        TD.number { text-align: right; }",
 746                 "        TD, TH { text-align: left; white-space: nowrap; }",
 747                 "        TD.name, SPAN.name { font-weight: bold; }",
 748                 "        ",
 749                 "        TABLE.module { width: 100%; }",
 750                 "        TABLE.module TD:first-child { padding-right: 10px; }",
 751                 "        TR.module > TD { padding: 10px 0; border-top: 1px solid black; }",
 752                 "        TR > TH { padding-bottom: 10px; }",
 753                 "        TR.br TD { padding-top: 20px; }",
 754                 "        TABLE.modules { margin-top: 20px; }",
 755                 "        TABLE.modules > TBODY > TR > TD:nth-child(even) { background: #eee; }",
 756                 "        TABLE.modules > TBODY > TR > TD, TABLE.modules > TBODY > TR > TH {",
 757                 "          padding-left: 10px; padding-right: 10px; }",
 758                 "        .reexp, .def { font-weight: bold; }",
 759                 "        .agg { font-style: italic; }",
 760                 "        SUP { height: 0; line-height: 1; position: relative;",
 761                 "              vertical-align: baseline; bottom: 1ex; font-size: 11px; }",
 762                 "</style>",
 763         };
 764     }
 765 }