@Nullable
  private VirtualFileSystemEntry findChild(
      @NotNull String name,
      boolean doRefresh,
      boolean ensureCanonicalName,
      @NotNull NewVirtualFileSystem delegate) {
    boolean ignoreCase = !delegate.isCaseSensitive();
    Comparator comparator = getComparator(ignoreCase);
    VirtualFileSystemEntry result = doFindChild(name, ensureCanonicalName, delegate, comparator);

    if (result == NULL_VIRTUAL_FILE) {
      result = doRefresh ? createAndFindChildWithEventFire(name, delegate) : null;
    } else if (result != null
        && doRefresh
        && delegate.isDirectory(result) != result.isDirectory()) {
      RefreshQueue.getInstance().refresh(false, false, null, result);
      result = findChild(name, false, ensureCanonicalName, delegate);
    }

    if (result == null) {
      addToAdoptedChildren(!delegate.isCaseSensitive(), name, comparator);
    }

    return result;
  }
示例#2
0
  @Nullable
  private VirtualFileSystemEntry findFileById(
      int id, boolean cachedOnly, TIntArrayList visited, int mask) {
    VirtualFileSystemEntry cached = myIdToDirCache.get(id);
    if (cached != null) return cached;

    if (visited != null
        && (visited.size() >= DEPTH_LIMIT || (mask & id) == id && visited.contains(id))) {
      @NonNls
      String sb =
          "Dead loop detected in persistent FS (id=" + id + " cached-only=" + cachedOnly + "):";
      for (int i = 0; i < visited.size(); i++) {
        int _id = visited.get(i);
        sb +=
            "\n  "
                + _id
                + " '"
                + getName(_id)
                + "' "
                + String.format("%02x", getFileAttributes(_id))
                + ' '
                + myIdToDirCache.containsKey(_id);
      }
      LOG.error(sb);
      return null;
    }

    int parentId = getParent(id);
    if (parentId >= id) {
      if (visited == null) visited = new TIntArrayList(DEPTH_LIMIT);
    }
    if (visited != null) visited.add(id);

    VirtualFileSystemEntry result;
    if (parentId == 0) {
      myRootsLock.readLock().lock();
      try {
        result = myRootsById.get(id);
      } finally {
        myRootsLock.readLock().unlock();
      }
    } else {
      VirtualFileSystemEntry parentFile = findFileById(parentId, cachedOnly, visited, mask | id);
      if (parentFile instanceof VirtualDirectoryImpl) {
        result = ((VirtualDirectoryImpl) parentFile).findChildById(id, cachedOnly);
      } else {
        result = null;
      }
    }

    if (result != null && result.isDirectory()) {
      VirtualFileSystemEntry old = myIdToDirCache.put(id, result);
      if (old != null) result = old;
    }
    return result;
  }