public void testSubst() throws Exception {
    if (!SystemInfo.isWindows) {
      System.err.println("Ignored: Windows required");
      return;
    }

    File targetDir = createTestDir("top");
    File subDir = createTestDir(targetDir, "sub");
    File file = createTestFile(subDir, "test.txt");
    File rootFile = createSubst(targetDir.getAbsolutePath());
    VirtualDirectoryImpl.allowRootAccess(rootFile.getPath());
    VirtualFile vfsRoot = myFileSystem.findFileByIoFile(rootFile);

    try {
      assertNotNull(rootFile.getPath(), vfsRoot);
      File substDir = new File(rootFile, subDir.getName());
      File substFile = new File(substDir, file.getName());
      refresh(targetDir);
      refresh(substDir);

      LocalFileSystem.WatchRequest request = watch(substDir);
      try {
        myAccept = true;
        FileUtil.writeToFile(file, "new content");
        assertEvent(VFileContentChangeEvent.class, substFile.getAbsolutePath());

        LocalFileSystem.WatchRequest request2 = watch(targetDir);
        try {
          myAccept = true;
          FileUtil.delete(file);
          assertEvent(VFileDeleteEvent.class, file.getAbsolutePath(), substFile.getAbsolutePath());
        } finally {
          unwatch(request2);
        }

        myAccept = true;
        FileUtil.writeToFile(file, "re-creation");
        assertEvent(VFileCreateEvent.class, substFile.getAbsolutePath());
      } finally {
        unwatch(request);
      }
    } finally {
      delete(targetDir);
      IoTestUtil.deleteSubst(rootFile.getPath());
      if (vfsRoot != null) {
        ((NewVirtualFile) vfsRoot).markDirty();
        myFileSystem.refresh(false);
      }
      VirtualDirectoryImpl.disallowRootAccess(rootFile.getPath());
    }
  }
  @Override
  protected void setUp() throws Exception {
    LOG.debug("================== setting up " + getName() + " ==================");

    super.setUp();

    myFileSystem = LocalFileSystem.getInstance();
    assertNotNull(myFileSystem);

    myWatcher = ((LocalFileSystemImpl) myFileSystem).getFileWatcher();
    assertNotNull(myWatcher);
    assertFalse(myWatcher.isOperational());
    myWatcher.startup(myNotifier);
    assertTrue(myWatcher.isOperational());

    myAlarm = new Alarm(Alarm.ThreadToUse.POOLED_THREAD, getProject());
    myTimeout = NATIVE_PROCESS_DELAY;

    myConnection = ApplicationManager.getApplication().getMessageBus().connect();
    myConnection.subscribe(
        VirtualFileManager.VFS_CHANGES,
        new BulkFileListener.Adapter() {
          @Override
          public void after(@NotNull List<? extends VFileEvent> events) {
            synchronized (myEvents) {
              myEvents.addAll(events);
            }
          }
        });

    ((LocalFileSystemImpl) myFileSystem).cleanupForNextTest();

    LOG = FileWatcher.getLog();
    LOG.debug("================== setting up " + getName() + " ==================");
  }
  private List<VFileEvent> getEvents(String msg, @Nullable Runnable action) {
    LOG.debug("** waiting for " + msg);
    myAccept = true;

    if (action != null) {
      action.run();
    }

    int timeout = myTimeout;
    try {
      synchronized (myWaiter) {
        //noinspection WaitNotInLoop
        myWaiter.wait(timeout);
      }
    } catch (InterruptedException e) {
      LOG.warn(e);
    }

    LOG.debug("** waited for " + timeout);
    myFileSystem.refresh(false);

    ArrayList<VFileEvent> result;
    synchronized (myEvents) {
      result = new ArrayList<VFileEvent>(myEvents);
      myEvents.clear();
    }
    LOG.debug("** events: " + result.size());
    return result;
  }
  @NotNull
  private VirtualFilePointer create(
      @Nullable VirtualFile file,
      @NotNull String url,
      @NotNull final Disposable parentDisposable,
      @Nullable VirtualFilePointerListener listener) {
    String protocol;
    VirtualFileSystem fileSystem;
    if (file == null) {
      protocol = VirtualFileManager.extractProtocol(url);
      fileSystem = myVirtualFileManager.getFileSystem(protocol);
    } else {
      protocol = null;
      fileSystem = file.getFileSystem();
    }
    if (fileSystem == TempFileSystem.getInstance()) {
      // for tests, recreate always since
      VirtualFile found =
          fileSystem == null
              ? null
              : file != null ? file : VirtualFileManager.getInstance().findFileByUrl(url);
      return new IdentityVirtualFilePointer(found, url);
    }
    if (fileSystem != LocalFileSystem.getInstance() && fileSystem != JarFileSystem.getInstance()) {
      // we are unable to track alien file systems for now
      VirtualFile found =
          fileSystem == null
              ? null
              : file != null ? file : VirtualFileManager.getInstance().findFileByUrl(url);
      // if file is null, this pointer will never be alive
      return getOrCreateIdentity(url, found);
    }

    String path;
    if (file == null) {
      path = VirtualFileManager.extractPath(url);
      path = cleanupPath(path, protocol);
      url = VirtualFileManager.constructUrl(protocol, path);
    } else {
      path = file.getPath();
      // url has come from VirtualFile.getUrl() and is good enough
    }

    VirtualFilePointerImpl pointer = getOrCreate(file, url, parentDisposable, listener, path);

    int newCount = pointer.incrementUsageCount();

    if (newCount == 1) {
      Disposer.register(parentDisposable, pointer);
    } else {
      // already registered
      register(parentDisposable, pointer);
    }

    return pointer;
  }
 private void delete(File file) throws IOException {
   VirtualFile vFile = myFileSystem.findFileByIoFile(file);
   if (vFile != null) {
     AccessToken token = ApplicationManager.getApplication().acquireWriteActionLock(getClass());
     try {
       vFile.delete(this);
     } finally {
       token.finish();
     }
   }
   if (file.exists()) {
     FileUtil.delete(file);
   }
 }
 private VirtualFile refresh(File file) {
   VirtualFile vFile = myFileSystem.refreshAndFindFileByIoFile(file);
   assertNotNull(file.toString(), vFile);
   VfsUtilCore.visitChildrenRecursively(
       vFile,
       new VirtualFileVisitor() {
         @Override
         public boolean visitFile(@NotNull VirtualFile file) {
           file.getChildren();
           return true;
         }
       });
   return vFile;
 }
Beispiel #7
0
  @Override
  @Nullable
  public VirtualFileSystemEntry findRoot(
      @NotNull String basePath, @NotNull NewVirtualFileSystem fs) {
    if (basePath.isEmpty()) {
      LOG.error("Invalid root, fs=" + fs);
      return null;
    }

    String rootUrl = normalizeRootUrl(basePath, fs);

    myRootsLock.readLock().lock();
    try {
      VirtualFileSystemEntry root = myRoots.get(rootUrl);
      if (root != null) return root;
    } finally {
      myRootsLock.readLock().unlock();
    }

    final VirtualFileSystemEntry newRoot;
    int rootId = FSRecords.findRootRecord(rootUrl);

    VfsData.Segment segment = VfsData.getSegment(rootId, true);
    VfsData.DirectoryData directoryData = new VfsData.DirectoryData();
    if (fs instanceof ArchiveFileSystem) {
      String parentPath =
          basePath.substring(0, basePath.indexOf(ArchiveFileSystem.ARCHIVE_SEPARATOR));
      VirtualFile parentFile = LocalFileSystem.getInstance().findFileByPath(parentPath);
      if (parentFile == null) return null;
      FileType type = FileTypeRegistry.getInstance().getFileTypeByFileName(parentFile.getName());
      if (!(type instanceof ArchiveFileType)) return null;
      newRoot = new ArchiveRoot(fs, rootId, segment, directoryData, parentFile);
    } else {
      newRoot = new FsRoot(fs, rootId, segment, directoryData, basePath);
    }

    FileAttributes attributes =
        fs.getAttributes(
            new StubVirtualFile() {
              @NotNull
              @Override
              public String getPath() {
                return newRoot.getPath();
              }

              @Nullable
              @Override
              public VirtualFile getParent() {
                return null;
              }
            });
    if (attributes == null || !attributes.isDirectory()) {
      return null;
    }

    boolean mark = false;

    myRootsLock.writeLock().lock();
    try {
      VirtualFileSystemEntry root = myRoots.get(rootUrl);
      if (root != null) return root;

      VfsData.initFile(rootId, segment, -1, directoryData);
      mark = writeAttributesToRecord(rootId, 0, newRoot, fs, attributes);

      myRoots.put(rootUrl, newRoot);
      myRootsById.put(rootId, newRoot);
    } finally {
      myRootsLock.writeLock().unlock();
    }

    if (!mark && attributes.lastModified != FSRecords.getTimestamp(rootId)) {
      newRoot.markDirtyRecursively();
    }

    LOG.assertTrue(
        rootId == newRoot.getId(),
        "root=" + newRoot + " expected=" + rootId + " actual=" + newRoot.getId());

    return newRoot;
  }
  @Override
  @Nullable
  public VirtualFileSystemEntry findRoot(
      @NotNull String basePath, @NotNull NewVirtualFileSystem fs) {
    String rootUrl = normalizeRootUrl(basePath, fs);
    boolean isFakeRoot = basePath.isEmpty();
    VirtualFileSystemEntry root;

    myRootsLock.readLock().lock();
    try {
      root = isFakeRoot ? mySuperRoot : myRoots.get(rootUrl);
      if (root != null) return root;
    } finally {
      myRootsLock.readLock().unlock();
    }

    myRootsLock.writeLock().lock();
    try {
      root = isFakeRoot ? mySuperRoot : myRoots.get(rootUrl);
      if (root != null) return root;

      int rootId = FSRecords.findRootRecord(rootUrl);
      root = myRootsById.get(rootId);
      if (root != null) return root;

      if (isFakeRoot) {
        // fake super-root
        root = new FakeRoot(fs, rootId);
      } else if (fs instanceof JarFileSystem) {
        // optimization: for jar roots do not store base path in the myName field, use local FS
        // file's getPath()
        String parentPath = basePath.substring(0, basePath.indexOf(JarFileSystem.JAR_SEPARATOR));
        VirtualFile parentLocalFile = LocalFileSystem.getInstance().findFileByPath(parentPath);
        if (parentLocalFile == null) return null;

        // check one more time since the findFileByPath could have created the root (by reentering
        // the findRoot)
        root = myRoots.get(rootUrl);
        if (root != null) return root;
        root = myRootsById.get(rootId);
        if (root != null) return root;

        root = new JarRoot(fs, rootId, parentLocalFile);
      } else {
        root = new FsRoot(fs, rootId, basePath);
      }

      if (isFakeRoot) {
        mySuperRoot = root;
      } else {
        FileAttributes attributes = fs.getAttributes(root);
        if (attributes == null || !attributes.isDirectory()) {
          return null;
        }
        final boolean newRoot = writeAttributesToRecord(rootId, 0, root, fs, attributes);
        if (!newRoot && attributes.lastModified != FSRecords.getTimestamp(rootId)) {
          root.markDirtyRecursively();
        }

        myRoots.put(rootUrl, root);
        myRootsById.put(rootId, root);

        if (rootId != root.getId()) throw new AssertionError();
      }

      return root;
    } finally {
      myRootsLock.writeLock().unlock();
    }
  }