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