Java FileUtil.FILE_HASHING_STRATEGY屬性代碼示例

private static void initTargetFSState(CompileContext context, BuildTarget<?> target, final boolean forceMarkDirty) throws IOException {
  final ProjectDescriptor pd = context.getProjectDescriptor();
  final Timestamps timestamps = pd.timestamps.getStorage();
  final THashSet<File> currentFiles = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
  FSOperations.markDirtyFiles(context, target, CompilationRound.CURRENT, timestamps, forceMarkDirty, currentFiles, null);

  // handle deleted paths
  final BuildFSState fsState = pd.fsState;
  fsState.clearDeletedPaths(target);
  final SourceToOutputMapping sourceToOutputMap = pd.dataManager.getSourceToOutputMap(target);
  for (final Iterator<String> it = sourceToOutputMap.getSourcesIterator(); it.hasNext(); ) {
    final String path = it.next();
    // can check if the file exists
    final File file = new File(path);
    if (!currentFiles.contains(file)) {
      fsState.registerDeleted(target, file, timestamps);
    }
  }
  pd.fsState.markInitialScanPerformed(target);
}
 

@NotNull
@Override
public Collection<File> getOutputRoots(CompileContext context) {
  MavenModuleResourceConfiguration configuration =
    getModuleResourcesConfiguration(context.getProjectDescriptor().dataManager.getDataPaths());
  if (configuration == null) return Collections.emptyList();

  final Set<File> result = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
  final File moduleOutput = getModuleOutputDir();
  for (ResourceRootConfiguration resConfig : getRootConfigurations(configuration)) {
    final File output = getOutputDir(moduleOutput, resConfig, configuration.outputDirectory);
    if (output != null) {
      result.add(output);
    }
  }
  return result;
}
 

@NotNull
@Override
public List<JavaSourceRootDescriptor> computeRootDescriptors(JpsModel model, ModuleExcludeIndex index, IgnoredFileIndex ignoredFileIndex, BuildDataPaths dataPaths) {
  List<JavaSourceRootDescriptor> roots = new ArrayList<JavaSourceRootDescriptor>();
  JavaSourceRootType type = isTests() ? JavaSourceRootType.TEST_SOURCE : JavaSourceRootType.SOURCE;
  Iterable<ExcludedJavaSourceRootProvider> excludedRootProviders = JpsServiceManager.getInstance().getExtensions(ExcludedJavaSourceRootProvider.class);
  final Set<File> moduleExcludes = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
  moduleExcludes.addAll(index.getModuleExcludes(myModule));

  roots_loop:
  for (JpsTypedModuleSourceRoot<JavaSourceRootProperties> sourceRoot : myModule.getSourceRoots(type)) {
    if (JpsPathUtil.isUnder(moduleExcludes, sourceRoot.getFile())) {
      continue;
    }
    for (ExcludedJavaSourceRootProvider provider : excludedRootProviders) {
      if (provider.isExcludedFromCompilation(myModule, sourceRoot)) {
        continue roots_loop;
      }
    }
    final String packagePrefix = sourceRoot.getProperties().getPackagePrefix();
    roots.add(new JavaSourceRootDescriptor(sourceRoot.getFile(), this, false, false, packagePrefix,
                                           computeRootExcludes(sourceRoot.getFile(), index)));
  }
  return roots;
}
 

public static void clearOutputFiles(CompileContext context, BuildTarget<?> target) throws IOException {
  final SourceToOutputMapping map = context.getProjectDescriptor().dataManager.getSourceToOutputMap(target);
  final THashSet<File> dirsToDelete = target instanceof ModuleBasedTarget? new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY) : null;
  for (String srcPath : map.getSources()) {
    final Collection<String> outs = map.getOutputs(srcPath);
    if (outs != null && !outs.isEmpty()) {
      List<String> deletedPaths = new ArrayList<String>();
      for (String out : outs) {
        BuildOperations.deleteRecursively(out, deletedPaths, dirsToDelete);
      }
      if (!deletedPaths.isEmpty()) {
        context.processMessage(new FileDeletedEvent(deletedPaths));
      }
    }
  }
  registerTargetsWithClearedOutput(context, Collections.singletonList(target));
  if (dirsToDelete != null) {
    FSOperations.pruneEmptyDirs(context, dirsToDelete);
  }
}
 

private Mappings(final Mappings base) throws IOException {
  myLock = base.myLock;
  myIsDelta = true;
  myChangedClasses = new TIntHashSet(DEFAULT_SET_CAPACITY, DEFAULT_SET_LOAD_FACTOR);
  myChangedFiles = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
  myDeletedClasses = new HashSet<Pair<ClassRepr, File>>(DEFAULT_SET_CAPACITY, DEFAULT_SET_LOAD_FACTOR);
  myAddedClasses = new HashSet<ClassRepr>(DEFAULT_SET_CAPACITY, DEFAULT_SET_LOAD_FACTOR);
  myDeltaIsTransient = base.myDeltaIsTransient;
  myRootDir = new File(FileUtil.toSystemIndependentName(base.myRootDir.getAbsolutePath()) + File.separatorChar + "myDelta");
  myContext = base.myContext;
  myInitName = myContext.get("<init>");
  myEmptyName = myContext.get("");
  myObjectClassName = myContext.get("java/lang/Object");
  myDebugS = base.myDebugS;
  createImplementation();
}
 

private void loadModules(Element root, final @Nullable JpsSdkType<?> projectSdkType) {
  Runnable timingLog = TimingLog.startActivity("loading modules");
  Element componentRoot = JDomSerializationUtil.findComponent(root, "ProjectModuleManager");
  if (componentRoot == null) return;

  final Set<File> foundFiles = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
  final List<File> moduleFiles = new ArrayList<File>();
  for (Element moduleElement : JDOMUtil.getChildren(componentRoot.getChild("modules"), "module")) {
    final String path = moduleElement.getAttributeValue("filepath");
    final File file = new File(path);
    if (foundFiles.add(file) && file.exists()) {
      moduleFiles.add(file);
    }
    else {
      LOG.info("Module '" + FileUtil.getNameWithoutExtension(file) + "' is skipped: " + file.getAbsolutePath() + " doesn't exist");
    }
  }

  List<JpsModule> modules = loadModules(moduleFiles, projectSdkType, myPathVariables);
  for (JpsModule module : modules) {
    myProject.addModule(module);
  }
  timingLog.run();
}
 

private boolean _addToRecompiled(BuildRootDescriptor root, Collection<File> filesToAdd) {
  Set<File> files = myFilesToRecompile.get(root);
  if (files == null) {
    files = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
    myFilesToRecompile.put(root, files);
  }
  return files.addAll(filesToAdd);
}
 

public static void pruneEmptyDirs(CompileContext context, @Nullable final Set<File> dirsToDelete) {
  if (dirsToDelete == null || dirsToDelete.isEmpty()) return;

  Set<File> doNotDelete = ALL_OUTPUTS_KEY.get(context);
  if (doNotDelete == null) {
    doNotDelete = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
    for (BuildTarget<?> target : context.getProjectDescriptor().getBuildTargetIndex().getAllTargets()) {
      doNotDelete.addAll(target.getOutputRoots(context));
    }
    ALL_OUTPUTS_KEY.set(context, doNotDelete);
  }

  Set<File> additionalDirs = null;
  Set<File> toDelete = dirsToDelete;
  while (toDelete != null) {
    for (File file : toDelete) {
      // important: do not force deletion if the directory is not empty!
      final boolean deleted = !doNotDelete.contains(file) && file.delete();
      if (deleted) {
        final File parentFile = file.getParentFile();
        if (parentFile != null) {
          if (additionalDirs == null) {
            additionalDirs = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
          }
          additionalDirs.add(parentFile);
        }
      }
    }
    toDelete = additionalDirs;
    additionalDirs = null;
  }
}
 

@NotNull
protected Set<File> computeRootExcludes(File root, ModuleExcludeIndex index) {
  final Collection<File> moduleExcludes = index.getModuleExcludes(getModule());
  if (moduleExcludes.isEmpty()) {
    return Collections.emptySet();
  }
  final Set<File> excludes = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
  for (File excluded : moduleExcludes) {
    if (FileUtil.isAncestor(root, excluded, true)) {
      excludes.add(excluded);
    }
  }
  return excludes;
}
 

public boolean outputRootWasDeleted(CompileContext context) throws IOException {
  List<String> nonexistentOutputRoots = new SmartList<String>();

  final Collection<File> targetRoots = myTarget.getOutputRoots(context);
  synchronized (ALL_DELETED_ROOTS_KEY) {
    Set<File> allDeletedRoots = ALL_DELETED_ROOTS_KEY.get(context);
    for (File outputRoot : targetRoots) {
      boolean wasDeleted = allDeletedRoots != null && allDeletedRoots.contains(outputRoot);
      if (!wasDeleted) {
        wasDeleted = !outputRoot.exists();
        if (wasDeleted) {
          if (allDeletedRoots == null) { // lazy init
            allDeletedRoots = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
            ALL_DELETED_ROOTS_KEY.set(context, allDeletedRoots);
          }
          allDeletedRoots.add(outputRoot);
        }
      }
      if (wasDeleted) {
        nonexistentOutputRoots.add(outputRoot.getAbsolutePath());
      }
    }
  }

  if (nonexistentOutputRoots.isEmpty()) {
    return false;
  }
  
  Set<String> storedNonExistentOutputs;
  File file = getNonexistentOutputsFile();
  if (!file.exists()) {
    storedNonExistentOutputs = Collections.emptySet();
  }
  else {
    List<String> lines = StringUtil.split(FileUtil.loadFile(file), "\n");
    storedNonExistentOutputs = new THashSet<String>(lines, FileUtil.PATH_HASHING_STRATEGY);
  }
  return !storedNonExistentOutputs.containsAll(nonexistentOutputRoots);
}
 

private void createImplementation() throws IOException {
  if (!myIsDelta) {
    myContext = new DependencyContext(myRootDir);
    myDebugS = myContext.getLogger(LOG);
  }

  myRemovedSuperClasses = myIsDelta ? new IntIntTransientMultiMaplet() : null;
  myAddedSuperClasses = myIsDelta ? new IntIntTransientMultiMaplet() : null;

  final CollectionFactory<File> fileCollectionFactory = new CollectionFactory<File>() {
    public Collection<File> create() {
      return new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY); // todo: do we really need set and not a list here?
    }
  };
  if (myIsDelta && myDeltaIsTransient) {
    myClassToSubclasses = new IntIntTransientMultiMaplet();
    myClassToClassDependency = new IntIntTransientMultiMaplet();
    myShortClassNameIndex = null;
    mySourceFileToClasses = new ObjectObjectTransientMultiMaplet<File, ClassRepr>(FileUtil.FILE_HASHING_STRATEGY, ourClassSetConstructor);
    myClassToSourceFile = new IntObjectTransientMultiMaplet<File>(fileCollectionFactory);
  }
  else {
    if (myIsDelta) {
      myRootDir.mkdirs();
    }
    myClassToSubclasses = new IntIntPersistentMultiMaplet(DependencyContext.getTableFile(myRootDir, CLASS_TO_SUBCLASSES), INT_KEY_DESCRIPTOR);
    myClassToClassDependency = new IntIntPersistentMultiMaplet(DependencyContext.getTableFile(myRootDir, CLASS_TO_CLASS), INT_KEY_DESCRIPTOR);
    myShortClassNameIndex = myIsDelta? null : new IntIntPersistentMultiMaplet(DependencyContext.getTableFile(myRootDir, SHORT_NAMES), INT_KEY_DESCRIPTOR);
    mySourceFileToClasses = new ObjectObjectPersistentMultiMaplet<File, ClassRepr>(
      DependencyContext.getTableFile(myRootDir, SOURCE_TO_CLASS), new FileKeyDescriptor(), ClassRepr.externalizer(myContext),
      ourClassSetConstructor
    );
    myClassToSourceFile = new IntObjectPersistentMultiMaplet<File>(DependencyContext.getTableFile(myRootDir, CLASS_TO_SOURCE), INT_KEY_DESCRIPTOR, new FileKeyDescriptor(), fileCollectionFactory);
  }
}
 

private static Set<File> toFiles(List<String> classpath) {
  Set<File> result = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
  for (String path : classpath) {
    result.add(new File(path));
  }
  return result;
}
 

public TargetOutputIndexImpl(Collection<? extends BuildTarget<?>> allTargets, CompileContext context) {
  myOutputToTargets = new THashMap<File, List<BuildTarget<?>>>(FileUtil.FILE_HASHING_STRATEGY);
  for (BuildTarget<?> target : allTargets) {
    Collection<File> roots = target.getOutputRoots(context);
    for (File root : roots) {
      List<BuildTarget<?>> targets = myOutputToTargets.get(root);
      if (targets == null) {
        targets = new SmartList<BuildTarget<?>>();
        myOutputToTargets.put(root, targets);
      }
      targets.add(target);
    }
  }
}
 

public BuildRootIndexImpl(BuildTargetRegistry targetRegistry, JpsModel model, ModuleExcludeIndex index,
                          BuildDataPaths dataPaths, final IgnoredFileIndex ignoredFileIndex) {
  myIgnoredFileIndex = ignoredFileIndex;
  myRootsByTarget = new HashMap<BuildTarget<?>, List<? extends BuildRootDescriptor>>();
  myRootToDescriptors = new THashMap<File, List<BuildRootDescriptor>>(FileUtil.FILE_HASHING_STRATEGY);
  myFileFilters = new ConcurrentHashMap<BuildRootDescriptor, FileFilter>(16, 0.75f, 1);
  final Iterable<AdditionalRootsProviderService> rootsProviders = JpsServiceManager.getInstance().getExtensions(AdditionalRootsProviderService.class);
  for (BuildTargetType<?> targetType : TargetTypeRegistry.getInstance().getTargetTypes()) {
    for (BuildTarget<?> target : targetRegistry.getAllTargets(targetType)) {
      addRoots(dataPaths, rootsProviders, target, model, index, ignoredFileIndex);
    }
  }
}
 

@NotNull
@Override
public Collection<File> getOutputRoots(CompileContext context) {
  GradleModuleResourceConfiguration configuration =
    getModuleResourcesConfiguration(context.getProjectDescriptor().dataManager.getDataPaths());
  final Set<File> result = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
  final File moduleOutput = getModuleOutputDir();
  for (ResourceRootConfiguration resConfig : getRootConfigurations(configuration)) {
    final File output = getOutputDir(moduleOutput, resConfig, configuration.outputDirectory);
    if (output != null) {
      result.add(output);
    }
  }
  return result;
}