Examples of tachyon.thrift.ClientFileInfo$ClientFileInfoStandardScheme

tachyon.thrift.ClientFileInfo

   * @param path The path of the folder in the filesystem
   * @return the generated ClientFileInfo
   */
  @Override
  public ClientFileInfo generateClientFileInfo(String path) {
    ClientFileInfo ret = new ClientFileInfo();


    ret.id = getId();
    ret.name = getName();
    ret.path = path;
    ret.ufsPath = "";

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   * @param blockIndex The index of the block in the file.
   * @return the block id if exists
   * @throws IOException if the file does not exist, or connection issue.
   */
  public synchronized long getBlockId(int fileId, int blockIndex) throws IOException {
    ClientFileInfo info = getFileStatus(fileId, true);


    if (info == null) {
      throw new IOException("File " + fileId + " does not exist.");
    }

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   * 
   * @return TachyonFile of the file id, or null if the file does not exist.
   */
  public synchronized TachyonFile getFile(int fid, boolean useCachedMetadata) throws IOException {
    if (!useCachedMetadata || !mIdToClientFileInfo.containsKey(fid)) {
      ClientFileInfo clientFileInfo = getFileStatus(fid, TachyonURI.EMPTY_URI);
      if (clientFileInfo == null) {
        return null;
      }
      mIdToClientFileInfo.put(fid, clientFileInfo);
    }

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   * to the file's pin setting, or other dynamic properties.
   */
  public synchronized TachyonFile getFile(TachyonURI path, boolean useCachedMetadata)
      throws IOException {
    validateUri(path);
    ClientFileInfo clientFileInfo = getFileStatus(-1, path, useCachedMetadata);
    if (clientFileInfo == null) {
      return null;
    }
    return new TachyonFile(this, clientFileInfo.getId());
  }

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  }


  @Override
  public ClientFileInfo getFileStatus(int fileId, TachyonURI path) throws IOException {
    validateUri(path);
    ClientFileInfo info = mMasterClient.getFileStatus(fileId, path.getPath());
    return info.getId() == -1 ? null : info;
  }

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   * @return the ClientFileInfo of the file. null if the file does not exist.
   * @throws IOException
   */
  public synchronized ClientFileInfo getFileStatus(int fileId, TachyonURI path,
      boolean useCachedMetadata) throws IOException {
    ClientFileInfo info = null;
    boolean updated = false;


    validateUri(path);


    if (fileId != -1) {
      info = mIdToClientFileInfo.get(fileId);
      if (!useCachedMetadata || info == null) {
        info = getFileStatus(fileId, TachyonURI.EMPTY_URI);
        updated = true;
      }


      if (info == null) {
        mIdToClientFileInfo.remove(fileId);
        return null;
      }


      path = new TachyonURI(info.getPath());
    } else {
      info = mPathToClientFileInfo.get(path.getPath());
      if (!useCachedMetadata || info == null) {
        info = getFileStatus(-1, path);
        updated = true;
      }


      if (info == null) {
        mPathToClientFileInfo.remove(path.getPath());
        return null;
      }


      fileId = info.getId();
    }


    if (updated) {
      // TODO LRU on this Map.
      mIdToClientFileInfo.put(fileId, info);

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    }


    List<ClientFileInfo> files = mTFS.listStatus(tPath);
    FileStatus[] ret = new FileStatus[files.size()];
    for (int k = 0; k < files.size(); k ++) {
      ClientFileInfo info = files.get(k);
      // TODO replicate 3 with the number of disk replications.
      ret[k] =
          new FileStatus(info.getLength(), info.isFolder, 3, info.getBlockSizeByte(),
              info.getCreationTimeMs(), info.getCreationTimeMs(), null, null, null, new Path(
                  mTachyonHeader + info.getPath()));
    }
    return ret;
  }

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   */
  public ClientFileInfo getClientFileInfo(int fid) throws InvalidPathException {
    synchronized (mRootLock) {
      Inode inode = mFileIdToInodes.get(fid);
      if (inode == null) {
        ClientFileInfo info = new ClientFileInfo();
        info.id = -1;
        return info;
      }
      return inode.generateClientFileInfo(getPath(inode).toString());
    }

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   */
  public ClientFileInfo getClientFileInfo(TachyonURI path) throws InvalidPathException {
    synchronized (mRootLock) {
      Inode inode = getInode(path);
      if (inode == null) {
        ClientFileInfo info = new ClientFileInfo();
        info.id = -1;
        return info;
      }
      return inode.generateClientFileInfo(path.toString());
    }

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      FileDoesNotExistException, TException {
    int fileId1 =
        TestUtils.createByteFile(mTfs, "/file1", WriteType.MUST_CACHE,
            (int) WORKER_CAPACITY_BYTES / 3);
    Assert.assertTrue(fileId1 >= 0);
    ClientFileInfo fileInfo1 = mMasterInfo.getClientFileInfo(new TachyonURI("/file1"));
    Assert.assertEquals(100, fileInfo1.inMemoryPercentage);
    int fileId2 =
        TestUtils.createByteFile(mTfs, "/file2", WriteType.MUST_CACHE,
            (int) WORKER_CAPACITY_BYTES / 3);
    Assert.assertTrue(fileId2 >= 0);
    fileInfo1 = mMasterInfo.getClientFileInfo(new TachyonURI("/file1"));
    ClientFileInfo fileInfo2 = mMasterInfo.getClientFileInfo(new TachyonURI("/file2"));
    Assert.assertEquals(100, fileInfo1.inMemoryPercentage);
    Assert.assertEquals(100, fileInfo2.inMemoryPercentage);
    int fileId3 =
        TestUtils.createByteFile(mTfs, "/file3", WriteType.MUST_CACHE,
            (int) WORKER_CAPACITY_BYTES / 2);
    CommonUtils.sleepMs(null, WORKER_TO_MASTER_HEARTBEAT_INTERVAL_MS);
    fileInfo1 = mMasterInfo.getClientFileInfo(new TachyonURI("/file1"));
    fileInfo2 = mMasterInfo.getClientFileInfo(new TachyonURI("/file2"));
    ClientFileInfo fileInfo3 = mMasterInfo.getClientFileInfo(new TachyonURI("/file3"));
    Assert.assertTrue(fileId3 >= 0);
    Assert.assertEquals(0, fileInfo1.inMemoryPercentage);
    Assert.assertEquals(100, fileInfo2.inMemoryPercentage);
    Assert.assertEquals(100, fileInfo3.inMemoryPercentage);
  }

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tachyon.client.TachyonFS

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