org.argeo.slc.factory/src/org/argeo/slc/factory/A2Factory.java

   1 package org.argeo.slc.factory;
   2
   3 import static java.lang.System.Logger.Level.DEBUG;
   4 import static org.argeo.slc.ManifestConstants.BUNDLE_LICENSE;
   5 import static org.argeo.slc.ManifestConstants.BUNDLE_SYMBOLICNAME;
   6 import static org.argeo.slc.ManifestConstants.BUNDLE_VERSION;
   7 import static org.argeo.slc.ManifestConstants.EXPORT_PACKAGE;
   8 import static org.argeo.slc.ManifestConstants.SLC_ORIGIN_M2;
   9
  10 import java.io.FileNotFoundException;
  11 import java.io.IOException;
  12 import java.io.InputStream;
  13 import java.io.OutputStream;
  14 import java.io.Writer;
  15 import java.lang.System.Logger;
  16 import java.lang.System.Logger.Level;
  17 import java.net.URL;
  18 import java.nio.file.DirectoryStream;
  19 import java.nio.file.FileSystem;
  20 import java.nio.file.FileSystems;
  21 import java.nio.file.FileVisitResult;
  22 import java.nio.file.Files;
  23 import java.nio.file.Path;
  24 import java.nio.file.PathMatcher;
  25 import java.nio.file.Paths;
  26 import java.nio.file.SimpleFileVisitor;
  27 import java.nio.file.attribute.BasicFileAttributes;
  28 import java.util.ArrayList;
  29 import java.util.HashMap;
  30 import java.util.List;
  31 import java.util.Map;
  32 import java.util.Properties;
  33 import java.util.TreeMap;
  34 import java.util.jar.Attributes;
  35 import java.util.jar.JarEntry;
  36 import java.util.jar.JarInputStream;
  37 import java.util.jar.JarOutputStream;
  38 import java.util.jar.Manifest;
  39
  40 import org.argeo.slc.DefaultNameVersion;
  41 import org.argeo.slc.ManifestConstants;
  42 import org.argeo.slc.NameVersion;
  43 import org.argeo.slc.factory.m2.DefaultArtifact;
  44 import org.argeo.slc.factory.m2.MavenConventionsUtils;
  45
  46 import aQute.bnd.osgi.Analyzer;
  47 import aQute.bnd.osgi.Jar;
  48
  49 /** The central class for A2 packaging. */
  50 public class A2Factory {
  51         private final static Logger logger = System.getLogger(A2Factory.class.getName());
  52
  53         private final static String COMMON_BND = "common.bnd";
  54
  55         private Path originBase;
  56         private Path a2Base;
  57
  58         /** key is URI prefix, value list of base URLs */
  59         private Map<String, List<String>> mirrors = new HashMap<String, List<String>>();
  60
  61         public A2Factory(Path a2Base) {
  62                 this.originBase = Paths.get(System.getProperty("user.home"), ".cache", "argeo/slc/origin");
  63                 this.a2Base = a2Base;
  64
  65                 // TODO make it configurable
  66                 List<String> eclipseMirrors = new ArrayList<>();
  67                 eclipseMirrors.add("https://archive.eclipse.org/");
  68                 eclipseMirrors.add("http://ftp-stud.hs-esslingen.de/Mirrors/eclipse/");
  69                 eclipseMirrors.add("http://ftp.fau.de/eclipse/");
  70
  71                 mirrors.put("http://www.eclipse.org/downloads", eclipseMirrors);
  72         }
  73
  74         public void processCategory(Path targetCategoryBase) {
  75                 try {
  76                         DirectoryStream<Path> bnds = Files.newDirectoryStream(targetCategoryBase,
  77                                         (p) -> p.getFileName().toString().endsWith(".bnd")
  78                                                         && !p.getFileName().toString().equals(COMMON_BND));
  79                         for (Path p : bnds) {
  80                                 processSingleM2ArtifactDistributionUnit(p);
  81                         }
  82
  83                         DirectoryStream<Path> dus = Files.newDirectoryStream(targetCategoryBase, (p) -> Files.isDirectory(p));
  84                         for (Path duDir : dus) {
  85                                 processM2BasedDistributionUnit(duDir);
  86                         }
  87                 } catch (IOException e) {
  88                         throw new RuntimeException("Cannot process category " + targetCategoryBase, e);
  89                 }
  90         }
  91
  92         public void processSingleM2ArtifactDistributionUnit(Path bndFile) {
  93                 try {
  94                         String category = bndFile.getParent().getFileName().toString();
  95                         Path targetCategoryBase = a2Base.resolve(category);
  96                         Properties fileProps = new Properties();
  97                         try (InputStream in = Files.newInputStream(bndFile)) {
  98                                 fileProps.load(in);
  99                         }
 100
 101                         String m2Coordinates = fileProps.getProperty(SLC_ORIGIN_M2.toString());
 102                         if (m2Coordinates == null)
 103                                 throw new IllegalArgumentException("No M2 coordinates available for " + bndFile);
 104                         DefaultArtifact artifact = new DefaultArtifact(m2Coordinates);
 105                         URL url = MavenConventionsUtils.mavenCentralUrl(artifact);
 106                         Path downloaded = download(url, originBase, artifact.toM2Coordinates() + ".jar");
 107
 108                         Path targetBundleDir = processBndJar(downloaded, targetCategoryBase, fileProps, artifact);
 109
 110                         downloadAndProcessM2Sources(artifact, targetBundleDir);
 111
 112                         createJar(targetBundleDir);
 113                 } catch (Exception e) {
 114                         throw new RuntimeException("Cannot process " + bndFile, e);
 115                 }
 116         }
 117
 118         public void processM2BasedDistributionUnit(Path duDir) {
 119                 try {
 120                         String category = duDir.getParent().getFileName().toString();
 121                         Path targetCategoryBase = a2Base.resolve(category);
 122                         Path commonBnd = duDir.resolve(COMMON_BND);
 123                         Properties commonProps = new Properties();
 124                         try (InputStream in = Files.newInputStream(commonBnd)) {
 125                                 commonProps.load(in);
 126                         }
 127
 128                         String m2Version = commonProps.getProperty(SLC_ORIGIN_M2.toString());
 129                         if (m2Version == null) {
 130                                 logger.log(Level.WARNING, "Ignoring " + duDir + " as it is not an M2-based distribution unit");
 131                                 return;// ignore, this is probably an Eclipse archive
 132                         }
 133                         if (!m2Version.startsWith(":")) {
 134                                 throw new IllegalStateException("Only the M2 version can be specified: " + m2Version);
 135                         }
 136                         m2Version = m2Version.substring(1);
 137
 138                         // String license = commonProps.getProperty(BUNDLE_LICENSE.toString());
 139
 140                         DirectoryStream<Path> ds = Files.newDirectoryStream(duDir,
 141                                         (p) -> p.getFileName().toString().endsWith(".bnd")
 142                                                         && !p.getFileName().toString().equals(COMMON_BND));
 143                         for (Path p : ds) {
 144                                 Properties fileProps = new Properties();
 145                                 try (InputStream in = Files.newInputStream(p)) {
 146                                         fileProps.load(in);
 147                                 }
 148                                 String m2Coordinates = fileProps.getProperty(SLC_ORIGIN_M2.toString());
 149                                 DefaultArtifact artifact = new DefaultArtifact(m2Coordinates);
 150
 151                                 // temporary rewrite, for migration
 152                                 String localLicense = fileProps.getProperty(BUNDLE_LICENSE.toString());
 153                                 if (localLicense != null || artifact.getVersion() != null) {
 154                                         fileProps.remove(BUNDLE_LICENSE.toString());
 155                                         fileProps.put(SLC_ORIGIN_M2.toString(), artifact.getGroupId() + ":" + artifact.getArtifactId());
 156                                         try (Writer writer = Files.newBufferedWriter(p)) {
 157                                                 for (Object key : fileProps.keySet()) {
 158                                                         String value = fileProps.getProperty(key.toString());
 159                                                         writer.write(key + ": " + value + '\n');
 160                                                 }
 161                                                 logger.log(DEBUG, () -> "Migrated  " + p);
 162                                         }
 163                                 }
 164
 165                                 artifact.setVersion(m2Version);
 166                                 URL url = MavenConventionsUtils.mavenCentralUrl(artifact);
 167                                 Path downloaded = download(url, originBase, artifact.toM2Coordinates() + ".jar");
 168
 169                                 // prepare manifest entries
 170                                 Properties mergeProps = new Properties();
 171                                 mergeProps.putAll(commonProps);
 172
 173                                 // Map<String, String> entries = new HashMap<>();
 174 //                              for (Object key : commonProps.keySet()) {
 175 //                                      entries.put(key.toString(), commonProps.getProperty(key.toString()));
 176 //                              }
 177                                 fileEntries: for (Object key : fileProps.keySet()) {
 178                                         if (ManifestConstants.SLC_ORIGIN_M2.toString().equals(key))
 179                                                 continue fileEntries;
 180                                         String value = fileProps.getProperty(key.toString());
 181                                         Object previousValue = mergeProps.put(key.toString(), value);
 182                                         if (previousValue != null) {
 183                                                 logger.log(Level.WARNING,
 184                                                                 downloaded + ": " + key + " was " + previousValue + ", overridden with " + value);
 185                                         }
 186                                 }
 187                                 mergeProps.put(ManifestConstants.SLC_ORIGIN_M2.toString(), artifact.toM2Coordinates());
 188                                 Path targetBundleDir = processBndJar(downloaded, targetCategoryBase, mergeProps, artifact);
 189 //                              logger.log(Level.DEBUG, () -> "Processed " + downloaded);
 190
 191                                 // sources
 192                                 downloadAndProcessM2Sources(artifact, targetBundleDir);
 193
 194                                 createJar(targetBundleDir);
 195                         }
 196                 } catch (IOException e) {
 197                         throw new RuntimeException("Cannot process " + duDir, e);
 198                 }
 199
 200         }
 201
 202         protected void downloadAndProcessM2Sources(DefaultArtifact artifact, Path targetBundleDir) throws IOException {
 203                 DefaultArtifact sourcesArtifact = new DefaultArtifact(artifact.toM2Coordinates(), "sources");
 204                 URL sourcesUrl = MavenConventionsUtils.mavenCentralUrl(sourcesArtifact);
 205                 Path sourcesDownloaded = download(sourcesUrl, originBase, artifact.toM2Coordinates() + ".sources.jar");
 206                 processM2SourceJar(sourcesDownloaded, targetBundleDir);
 207                 logger.log(Level.DEBUG, () -> "Processed source " + sourcesDownloaded);
 208
 209         }
 210
 211         protected Path processBndJar(Path downloaded, Path targetCategoryBase, Properties fileProps,
 212                         DefaultArtifact artifact) {
 213
 214                 try {
 215                         Map<String, String> additionalEntries = new TreeMap<>();
 216                         boolean doNotModify = Boolean.parseBoolean(fileProps
 217                                         .getOrDefault(ManifestConstants.SLC_ORIGIN_MANIFEST_NOT_MODIFIED.toString(), "false").toString());
 218
 219                         // we always force the symbolic name
 220
 221                         if (doNotModify) {
 222                                 fileEntries: for (Object key : fileProps.keySet()) {
 223                                         if (ManifestConstants.SLC_ORIGIN_M2.toString().equals(key))
 224                                                 continue fileEntries;
 225                                         String value = fileProps.getProperty(key.toString());
 226                                         additionalEntries.put(key.toString(), value);
 227                                 }
 228                         } else {
 229                                 if (artifact != null) {
 230                                         if (!fileProps.containsKey(BUNDLE_SYMBOLICNAME.toString())) {
 231                                                 fileProps.put(BUNDLE_SYMBOLICNAME.toString(), artifact.getName());
 232                                         }
 233                                         if (!fileProps.containsKey(BUNDLE_VERSION.toString())) {
 234                                                 fileProps.put(BUNDLE_VERSION.toString(), artifact.getVersion());
 235                                         }
 236                                 }
 237
 238                                 if (!fileProps.containsKey(EXPORT_PACKAGE.toString())) {
 239                                         fileProps.put(EXPORT_PACKAGE.toString(),
 240                                                         "*;version=\"" + fileProps.getProperty(BUNDLE_VERSION.toString()) + "\"");
 241                                 }
 242 //                              if (!fileProps.contains(IMPORT_PACKAGE.toString())) {
 243 //                                      fileProps.put(IMPORT_PACKAGE.toString(), "*");
 244 //                              }
 245
 246                                 try (Analyzer bndAnalyzer = new Analyzer()) {
 247                                         bndAnalyzer.setProperties(fileProps);
 248                                         Jar jar = new Jar(downloaded.toFile());
 249                                         bndAnalyzer.setJar(jar);
 250                                         Manifest manifest = bndAnalyzer.calcManifest();
 251
 252                                         keys: for (Object key : manifest.getMainAttributes().keySet()) {
 253                                                 Object value = manifest.getMainAttributes().get(key);
 254
 255                                                 switch (key.toString()) {
 256                                                 case "Tool":
 257                                                 case "Bnd-LastModified":
 258                                                 case "Created-By":
 259                                                         continue keys;
 260                                                 }
 261                                                 if ("Require-Capability".equals(key.toString())
 262                                                                 && value.toString().equals("osgi.ee;filter:=\"(&(osgi.ee=JavaSE)(version=1.1))\""))
 263                                                         continue keys;// hack for very old classes
 264                                                 additionalEntries.put(key.toString(), value.toString());
 265                                                 logger.log(DEBUG, () -> key + "=" + value);
 266
 267                                         }
 268                                 }
 269
 270 //                              try (Builder bndBuilder = new Builder()) {
 271 //                                      Jar jar = new Jar(downloaded.toFile());
 272 //                                      bndBuilder.addClasspath(jar);
 273 //                                      Path targetBundleDir = targetCategoryBase.resolve(artifact.getName() + "." + artifact.getBranch());
 274 //
 275 //                                      Jar target = new Jar(targetBundleDir.toFile());
 276 //                                      bndBuilder.setJar(target);
 277 //                                      return targetBundleDir;
 278 //                              }
 279                         }
 280                         Path targetBundleDir = processBundleJar(downloaded, targetCategoryBase, additionalEntries);
 281                         logger.log(Level.DEBUG, () -> "Processed " + downloaded);
 282                         return targetBundleDir;
 283                 } catch (Exception e) {
 284                         throw new RuntimeException("Cannot BND process " + downloaded, e);
 285                 }
 286
 287         }
 288
 289         protected void processM2SourceJar(Path file, Path targetBundleDir) throws IOException {
 290                 try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(file), false)) {
 291                         Path targetSourceDir = targetBundleDir.resolve("OSGI-OPT/src");
 292
 293                         // TODO make it less dangerous?
 294                         if (Files.exists(targetSourceDir)) {
 295                                 deleteDirectory(targetSourceDir);
 296                         } else {
 297                                 Files.createDirectories(targetSourceDir);
 298                         }
 299
 300                         // copy entries
 301                         JarEntry entry;
 302                         entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 303                                 if (entry.isDirectory())
 304                                         continue entries;
 305                                 if (entry.getName().startsWith("META-INF"))// skip META-INF entries
 306                                         continue entries;
 307                                 Path target = targetSourceDir.resolve(entry.getName());
 308                                 Files.createDirectories(target.getParent());
 309                                 Files.copy(jarIn, target);
 310                                 logger.log(Level.TRACE, () -> "Copied source " + target);
 311                         }
 312                 }
 313
 314         }
 315
 316         public void processEclipseArchive(Path duDir) {
 317                 try {
 318                         String category = duDir.getParent().getFileName().toString();
 319                         Path targetCategoryBase = a2Base.resolve(category);
 320                         Files.createDirectories(targetCategoryBase);
 321                         Files.createDirectories(originBase);
 322
 323                         Path commonBnd = duDir.resolve(COMMON_BND);
 324                         Properties commonProps = new Properties();
 325                         try (InputStream in = Files.newInputStream(commonBnd)) {
 326                                 commonProps.load(in);
 327                         }
 328                         Properties includes = new Properties();
 329                         try (InputStream in = Files.newInputStream(duDir.resolve("includes.properties"))) {
 330                                 includes.load(in);
 331                         }
 332                         String url = commonProps.getProperty(ManifestConstants.SLC_ORIGIN_URI.toString());
 333                         Path downloaded = tryDownload(url, originBase);
 334
 335                         FileSystem zipFs = FileSystems.newFileSystem(downloaded, (ClassLoader) null);
 336
 337                         List<PathMatcher> pathMatchers = new ArrayList<>();
 338                         for (Object pattern : includes.keySet()) {
 339                                 PathMatcher pathMatcher = zipFs.getPathMatcher("glob:/" + pattern);
 340                                 pathMatchers.add(pathMatcher);
 341                         }
 342
 343                         Files.walkFileTree(zipFs.getRootDirectories().iterator().next(), new SimpleFileVisitor<Path>() {
 344
 345                                 @Override
 346                                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
 347                                         pathMatchers: for (PathMatcher pathMatcher : pathMatchers) {
 348                                                 if (pathMatcher.matches(file)) {
 349 //                                                      Path target = targetBase.resolve(file.getFileName().toString());
 350 //                                                      if (!Files.exists(target)) {
 351 //                                                              Files.copy(file, target);
 352 //                                                              logger.log(Level.DEBUG, () -> "Copied " + target + " from " + downloaded);
 353 //                                                      } else {
 354 //                                                              logger.log(Level.DEBUG, () -> target + " already exists.");
 355 //
 356 //                                                      }
 357                                                         if (file.getFileName().toString().contains(".source_")) {
 358                                                                 processEclipseSourceJar(file, targetCategoryBase);
 359                                                                 logger.log(Level.DEBUG, () -> "Processed source " + file);
 360
 361                                                         } else {
 362                                                                 processBundleJar(file, targetCategoryBase, new HashMap<>());
 363                                                                 logger.log(Level.DEBUG, () -> "Processed " + file);
 364                                                         }
 365                                                         continue pathMatchers;
 366                                                 }
 367                                         }
 368                                         return super.visitFile(file, attrs);
 369                                 }
 370                         });
 371
 372                         DirectoryStream<Path> dirs = Files.newDirectoryStream(targetCategoryBase, (p) -> Files.isDirectory(p));
 373                         for (Path dir : dirs) {
 374                                 createJar(dir);
 375                         }
 376                 } catch (IOException e) {
 377                         throw new RuntimeException("Cannot process " + duDir, e);
 378                 }
 379
 380         }
 381
 382         protected Path processBundleJar(Path file, Path targetBase, Map<String, String> entries) throws IOException {
 383                 DefaultNameVersion nameVersion;
 384                 Path targetBundleDir;
 385                 try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(file), false)) {
 386                         Manifest manifest = new Manifest(jarIn.getManifest());
 387
 388                         // remove problematic entries in MANIFEST
 389                         manifest.getEntries().clear();
 390 //                      Set<String> entriesToDelete = new HashSet<>();
 391 //                      for (String key : manifest.getEntries().keySet()) {
 392 ////                            logger.log(DEBUG, "## " + key);
 393 //                              Attributes attrs = manifest.getAttributes(key);
 394 //                              for (Object attrName : attrs.keySet()) {
 395 ////                                    logger.log(DEBUG, attrName + "=" + attrs.get(attrName));
 396 //                                      if ("Specification-Version".equals(attrName.toString())
 397 //                                                      || "Implementation-Version".equals(attrName.toString())) {
 398 //                                              entriesToDelete.add(key);
 399 //
 400 //                                      }
 401 //                              }
 402 //                      }
 403 //                      for (String key : entriesToDelete) {
 404 //                              manifest.getEntries().remove(key);
 405 //                      }
 406
 407                         String symbolicNameFromEntries = entries.get(BUNDLE_SYMBOLICNAME.toString());
 408                         String versionFromEntries = entries.get(BUNDLE_VERSION.toString());
 409
 410                         if (symbolicNameFromEntries != null && versionFromEntries != null) {
 411                                 nameVersion = new DefaultNameVersion(symbolicNameFromEntries, versionFromEntries);
 412                         } else {
 413                                 nameVersion = nameVersionFromManifest(manifest);
 414                                 if (versionFromEntries != null && !nameVersion.getVersion().equals(versionFromEntries)) {
 415                                         logger.log(Level.WARNING, "Original version is " + nameVersion.getVersion()
 416                                                         + " while new version is " + versionFromEntries);
 417                                 }
 418                                 if (symbolicNameFromEntries != null) {
 419                                         // we always force our symbolic name
 420                                         nameVersion.setName(symbolicNameFromEntries);
 421                                 }
 422                         }
 423                         targetBundleDir = targetBase.resolve(nameVersion.getName() + "." + nameVersion.getBranch());
 424
 425                         // TODO make it less dangerous?
 426                         if (Files.exists(targetBundleDir)) {
 427                                 deleteDirectory(targetBundleDir);
 428                         }
 429
 430                         // copy entries
 431                         JarEntry entry;
 432                         entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 433                                 if (entry.isDirectory())
 434                                         continue entries;
 435                                 if (entry.getName().endsWith(".RSA") || entry.getName().endsWith(".SF"))
 436                                         continue entries;
 437                                 Path target = targetBundleDir.resolve(entry.getName());
 438                                 Files.createDirectories(target.getParent());
 439                                 Files.copy(jarIn, target);
 440                                 logger.log(Level.TRACE, () -> "Copied " + target);
 441                         }
 442
 443                         // copy MANIFEST
 444                         Path manifestPath = targetBundleDir.resolve("META-INF/MANIFEST.MF");
 445                         Files.createDirectories(manifestPath.getParent());
 446                         for (String key : entries.keySet()) {
 447                                 String value = entries.get(key);
 448                                 Object previousValue = manifest.getMainAttributes().putValue(key, value);
 449                                 if (previousValue != null && !previousValue.equals(value)) {
 450                                         if (ManifestConstants.IMPORT_PACKAGE.toString().equals(key)
 451                                                         || ManifestConstants.EXPORT_PACKAGE.toString().equals(key))
 452                                                 logger.log(Level.WARNING, file.getFileName() + ": " + key + " was modified");
 453
 454                                         else
 455                                                 logger.log(Level.WARNING, file.getFileName() + ": " + key + " was " + previousValue
 456                                                                 + ", overridden with " + value);
 457                                 }
 458                         }
 459                         try (OutputStream out = Files.newOutputStream(manifestPath)) {
 460                                 manifest.write(out);
 461                         }
 462                 }
 463                 return targetBundleDir;
 464         }
 465
 466         protected void processEclipseSourceJar(Path file, Path targetBase) throws IOException {
 467                 // NameVersion nameVersion;
 468                 Path targetBundleDir;
 469                 try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(file), false)) {
 470                         Manifest manifest = jarIn.getManifest();
 471                         // nameVersion = nameVersionFromManifest(manifest);
 472
 473                         String[] relatedBundle = manifest.getMainAttributes().getValue("Eclipse-SourceBundle").split(";");
 474                         String version = relatedBundle[1].substring("version=\"".length());
 475                         version = version.substring(0, version.length() - 1);
 476                         NameVersion nameVersion = new DefaultNameVersion(relatedBundle[0], version);
 477                         targetBundleDir = targetBase.resolve(nameVersion.getName() + "." + nameVersion.getBranch());
 478
 479                         Path targetSourceDir = targetBundleDir.resolve("OSGI-OPT/src");
 480
 481                         // TODO make it less dangerous?
 482                         if (Files.exists(targetSourceDir)) {
 483                                 deleteDirectory(targetSourceDir);
 484                         } else {
 485                                 Files.createDirectories(targetSourceDir);
 486                         }
 487
 488                         // copy entries
 489                         JarEntry entry;
 490                         entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 491                                 if (entry.isDirectory())
 492                                         continue entries;
 493                                 if (entry.getName().startsWith("META-INF"))// skip META-INF entries
 494                                         continue entries;
 495                                 Path target = targetSourceDir.resolve(entry.getName());
 496                                 Files.createDirectories(target.getParent());
 497                                 Files.copy(jarIn, target);
 498                                 logger.log(Level.TRACE, () -> "Copied source " + target);
 499                         }
 500
 501                         // copy MANIFEST
 502 //                      Path manifestPath = targetBundleDir.resolve("META-INF/MANIFEST.MF");
 503 //                      Files.createDirectories(manifestPath.getParent());
 504 //                      try (OutputStream out = Files.newOutputStream(manifestPath)) {
 505 //                              manifest.write(out);
 506 //                      }
 507                 }
 508
 509         }
 510
 511         static void deleteDirectory(Path path) throws IOException {
 512                 if (!Files.exists(path))
 513                         return;
 514                 Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
 515                         @Override
 516                         public FileVisitResult postVisitDirectory(Path directory, IOException e) throws IOException {
 517                                 if (e != null)
 518                                         throw e;
 519                                 Files.delete(directory);
 520                                 return FileVisitResult.CONTINUE;
 521                         }
 522
 523                         @Override
 524                         public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
 525                                 Files.delete(file);
 526                                 return FileVisitResult.CONTINUE;
 527                         }
 528                 });
 529         }
 530
 531         protected DefaultNameVersion nameVersionFromManifest(Manifest manifest) {
 532                 Attributes attrs = manifest.getMainAttributes();
 533                 // symbolic name
 534                 String symbolicName = attrs.getValue(ManifestConstants.BUNDLE_SYMBOLICNAME.toString());
 535                 if (symbolicName == null)
 536                         return null;
 537                 // make sure there is no directive
 538                 symbolicName = symbolicName.split(";")[0];
 539
 540                 String version = attrs.getValue(ManifestConstants.BUNDLE_VERSION.toString());
 541                 return new DefaultNameVersion(symbolicName, version);
 542         }
 543
 544         protected Path tryDownload(String uri, Path dir) throws IOException {
 545                 // find mirror
 546                 List<String> urlBases = null;
 547                 String uriPrefix = null;
 548                 uriPrefixes: for (String uriPref : mirrors.keySet()) {
 549                         if (uri.startsWith(uriPref)) {
 550                                 if (mirrors.get(uriPref).size() > 0) {
 551                                         urlBases = mirrors.get(uriPref);
 552                                         uriPrefix = uriPref;
 553                                         break uriPrefixes;
 554                                 }
 555                         }
 556                 }
 557                 if (urlBases == null)
 558                         try {
 559                                 return download(new URL(uri), dir, null);
 560                         } catch (FileNotFoundException e) {
 561                                 throw new FileNotFoundException("Cannot find " + uri);
 562                         }
 563
 564                 // try to download
 565                 for (String urlBase : urlBases) {
 566                         String relativePath = uri.substring(uriPrefix.length());
 567                         URL url = new URL(urlBase + relativePath);
 568                         try {
 569                                 return download(url, dir, null);
 570                         } catch (FileNotFoundException e) {
 571                                 logger.log(Level.WARNING, "Cannot download " + url + ", trying another mirror");
 572                         }
 573                 }
 574                 throw new FileNotFoundException("Cannot find " + uri);
 575         }
 576
 577 //      protected String simplifyName(URL u) {
 578 //      String  name = u.getPath().substring(u.getPath().lastIndexOf('/') + 1);
 579 //
 580 //      }
 581
 582         protected Path download(URL url, Path dir, String name) throws IOException {
 583
 584                 Path dest;
 585                 if (name == null) {
 586                         name = url.getPath().substring(url.getPath().lastIndexOf('/') + 1);
 587                 }
 588
 589                 dest = dir.resolve(name);
 590                 if (Files.exists(dest)) {
 591                         logger.log(Level.TRACE, () -> "File " + dest + " already exists for " + url + ", not downloading again");
 592                         return dest;
 593                 }
 594
 595                 try (InputStream in = url.openStream()) {
 596                         Files.copy(in, dest);
 597                         logger.log(Level.DEBUG, () -> "Downloaded " + dest + " from " + url);
 598                 }
 599                 return dest;
 600         }
 601
 602         protected Path createJar(Path bundleDir) throws IOException {
 603                 Path jarPath = bundleDir.getParent().resolve(bundleDir.getFileName() + ".jar");
 604                 Path manifestPath = bundleDir.resolve("META-INF/MANIFEST.MF");
 605                 Manifest manifest;
 606                 try (InputStream in = Files.newInputStream(manifestPath)) {
 607                         manifest = new Manifest(in);
 608                 }
 609                 try (JarOutputStream jarOut = new JarOutputStream(Files.newOutputStream(jarPath), manifest)) {
 610                         Files.walkFileTree(bundleDir, new SimpleFileVisitor<Path>() {
 611
 612                                 @Override
 613                                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
 614                                         if (file.getFileName().toString().equals("MANIFEST.MF"))
 615                                                 return super.visitFile(file, attrs);
 616                                         JarEntry entry = new JarEntry(bundleDir.relativize(file).toString());
 617                                         jarOut.putNextEntry(entry);
 618                                         Files.copy(file, jarOut);
 619                                         return super.visitFile(file, attrs);
 620                                 }
 621
 622                         });
 623                 }
 624                 deleteDirectory(bundleDir);
 625                 return jarPath;
 626         }
 627
 628         public static void main(String[] args) {
 629                 Path factoryBase = Paths.get("../../output/a2").toAbsolutePath().normalize();
 630                 A2Factory factory = new A2Factory(factoryBase);
 631
 632                 Path descriptorsBase = Paths.get("../tp").toAbsolutePath().normalize();
 633
 634 //              factory.processSingleM2ArtifactDistributionUnit(descriptorsBase.resolve("org.argeo.tp.apache").resolve("org.apache.xml.resolver.bnd"));
 635 //              factory.processM2BasedDistributionUnit(descriptorsBase.resolve("org.argeo.tp.apache/apache-sshd"));
 636 //              factory.processM2BasedDistributionUnit(descriptorsBase.resolve("org.argeo.tp.jetty/jetty"));
 637 //              factory.processM2BasedDistributionUnit(descriptorsBase.resolve("org.argeo.tp.jetty/jetty-websocket"));
 638                 factory.processCategory(descriptorsBase.resolve("org.argeo.tp.eclipse.rcp"));
 639                 System.exit(0);
 640
 641                 // Eclipse
 642                 factory.processEclipseArchive(
 643                                 descriptorsBase.resolve("org.argeo.tp.eclipse.equinox").resolve("eclipse-equinox"));
 644                 factory.processEclipseArchive(descriptorsBase.resolve("org.argeo.tp.eclipse.rap").resolve("eclipse-rap"));
 645                 factory.processEclipseArchive(descriptorsBase.resolve("org.argeo.tp.eclipse.rcp").resolve("eclipse-rcp"));
 646
 647                 System.exit(0);
 648
 649                 // Maven
 650                 factory.processCategory(descriptorsBase.resolve("org.argeo.tp.sdk"));
 651                 factory.processCategory(descriptorsBase.resolve("org.argeo.tp"));
 652                 factory.processCategory(descriptorsBase.resolve("org.argeo.tp.apache"));
 653                 factory.processCategory(descriptorsBase.resolve("org.argeo.tp.jetty"));
 654                 factory.processCategory(descriptorsBase.resolve("org.argeo.tp.jcr"));
 655         }
 656 }