Java Code Examples for org.apache.commons.net.ftp.ftpclient#printWorkingDirectory()

The following examples show how to use org.apache.commons.net.ftp.ftpclient#printWorkingDirectory() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: FTPFileSystem.java    From hadoop-gpu with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean mkdirs(FTPClient client, Path file, FsPermission permission)
    throws IOException {
  boolean created = true;
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.getName();
  if (!exists(client, absolute)) {
    Path parent = absolute.getParent();
    created = (parent == null || mkdirs(client, parent, FsPermission
        .getDefault()));
    if (created) {
      String parentDir = parent.toUri().getPath();
      client.changeWorkingDirectory(parentDir);
      created = created & client.makeDirectory(pathName);
    }
  } else if (isFile(client, absolute)) {
    throw new IOException(String.format(
        "Can't make directory for path %s since it is a file.", absolute));
  }
  return created;
}
 
Example 2
Source File: FTPFileSystem.java    From hadoop with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean delete(FTPClient client, Path file, boolean recursive)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.toUri().getPath();
  try {
    FileStatus fileStat = getFileStatus(client, absolute);
    if (fileStat.isFile()) {
      return client.deleteFile(pathName);
    }
  } catch (FileNotFoundException e) {
    //the file is not there
    return false;
  }
  FileStatus[] dirEntries = listStatus(client, absolute);
  if (dirEntries != null && dirEntries.length > 0 && !(recursive)) {
    throw new IOException("Directory: " + file + " is not empty.");
  }
  for (FileStatus dirEntry : dirEntries) {
    delete(client, new Path(absolute, dirEntry.getPath()), recursive);
  }
  return client.removeDirectory(pathName);
}
 
Example 3
Source File: FTPFileSystem.java    From hadoop with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private FileStatus[] listStatus(FTPClient client, Path file)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  FileStatus fileStat = getFileStatus(client, absolute);
  if (fileStat.isFile()) {
    return new FileStatus[] { fileStat };
  }
  FTPFile[] ftpFiles = client.listFiles(absolute.toUri().getPath());
  FileStatus[] fileStats = new FileStatus[ftpFiles.length];
  for (int i = 0; i < ftpFiles.length; i++) {
    fileStats[i] = getFileStatus(ftpFiles[i], absolute);
  }
  return fileStats;
}
 
Example 4
Source File: FTPFileSystem.java    From hadoop-gpu with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean delete(FTPClient client, Path file, boolean recursive)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.toUri().getPath();
  FileStatus fileStat = getFileStatus(client, absolute);
  if (!fileStat.isDir()) {
    return client.deleteFile(pathName);
  }
  FileStatus[] dirEntries = listStatus(client, absolute);
  if (dirEntries != null && dirEntries.length > 0 && !(recursive)) {
    throw new IOException("Directory: " + file + " is not empty.");
  }
  if (dirEntries != null) {
    for (int i = 0; i < dirEntries.length; i++) {
      delete(client, new Path(absolute, dirEntries[i].getPath()), recursive);
    }
  }
  return client.removeDirectory(pathName);
}
 
Example 5
Source File: FTPFileSystem.java    From hadoop with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean mkdirs(FTPClient client, Path file, FsPermission permission)
    throws IOException {
  boolean created = true;
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.getName();
  if (!exists(client, absolute)) {
    Path parent = absolute.getParent();
    created = (parent == null || mkdirs(client, parent, FsPermission
        .getDirDefault()));
    if (created) {
      String parentDir = parent.toUri().getPath();
      client.changeWorkingDirectory(parentDir);
      created = created && client.makeDirectory(pathName);
    }
  } else if (isFile(client, absolute)) {
    throw new ParentNotDirectoryException(String.format(
        "Can't make directory for path %s since it is a file.", absolute));
  }
  return created;
}
 
Example 6
Source File: FTPFileSystem.java    From RDFS with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 * 
 * @param client
 * @param src
 * @param dst
 * @return
 * @throws IOException
 */
private boolean rename(FTPClient client, Path src, Path dst)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absoluteSrc = makeAbsolute(workDir, src);
  Path absoluteDst = makeAbsolute(workDir, dst);
  if (!exists(client, absoluteSrc)) {
    throw new IOException("Source path " + src + " does not exist");
  }
  if (exists(client, absoluteDst)) {
    throw new IOException("Destination path " + dst
        + " already exist, cannot rename!");
  }
  String parentSrc = absoluteSrc.getParent().toUri().toString();
  String parentDst = absoluteDst.getParent().toUri().toString();
  String from = src.getName();
  String to = dst.getName();
  if (!parentSrc.equals(parentDst)) {
    throw new IOException("Cannot rename parent(source): " + parentSrc
        + ", parent(destination):  " + parentDst);
  }
  client.changeWorkingDirectory(parentSrc);
  boolean renamed = client.rename(from, to);
  return renamed;
}
 
Example 7
Source File: FTPFileSystem.java    From RDFS with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean mkdirs(FTPClient client, Path file, FsPermission permission)
    throws IOException {
  boolean created = true;
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.getName();
  if (!exists(client, absolute)) {
    Path parent = absolute.getParent();
    created = (parent == null || mkdirs(client, parent, FsPermission
        .getDefault()));
    if (created) {
      String parentDir = parent.toUri().getPath();
      client.changeWorkingDirectory(parentDir);
      created = created & client.makeDirectory(pathName);
    }
  } else if (isFile(client, absolute)) {
    throw new IOException(String.format(
        "Can't make directory for path %s since it is a file.", absolute));
  }
  return created;
}
 
Example 8
Source File: FTPFileSystem.java    From hadoop-gpu with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 * 
 * @param client
 * @param src
 * @param dst
 * @return
 * @throws IOException
 */
private boolean rename(FTPClient client, Path src, Path dst)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absoluteSrc = makeAbsolute(workDir, src);
  Path absoluteDst = makeAbsolute(workDir, dst);
  if (!exists(client, absoluteSrc)) {
    throw new IOException("Source path " + src + " does not exist");
  }
  if (exists(client, absoluteDst)) {
    throw new IOException("Destination path " + dst
        + " already exist, cannot rename!");
  }
  String parentSrc = absoluteSrc.getParent().toUri().toString();
  String parentDst = absoluteDst.getParent().toUri().toString();
  String from = src.getName();
  String to = dst.getName();
  if (!parentSrc.equals(parentDst)) {
    throw new IOException("Cannot rename parent(source): " + parentSrc
        + ", parent(destination):  " + parentDst);
  }
  client.changeWorkingDirectory(parentSrc);
  boolean renamed = client.rename(from, to);
  return renamed;
}
 
Example 9
Source File: FTPFileSystem.java    From hadoop-gpu with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private FileStatus[] listStatus(FTPClient client, Path file)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  FileStatus fileStat = getFileStatus(client, absolute);
  if (!fileStat.isDir()) {
    return new FileStatus[] { fileStat };
  }
  FTPFile[] ftpFiles = client.listFiles(absolute.toUri().getPath());
  FileStatus[] fileStats = new FileStatus[ftpFiles.length];
  for (int i = 0; i < ftpFiles.length; i++) {
    fileStats[i] = getFileStatus(ftpFiles[i], absolute);
  }
  return fileStats;
}
 
Example 10
Source File: FTPFileSystem.java    From big-c with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean mkdirs(FTPClient client, Path file, FsPermission permission)
    throws IOException {
  boolean created = true;
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.getName();
  if (!exists(client, absolute)) {
    Path parent = absolute.getParent();
    created = (parent == null || mkdirs(client, parent, FsPermission
        .getDirDefault()));
    if (created) {
      String parentDir = parent.toUri().getPath();
      client.changeWorkingDirectory(parentDir);
      created = created && client.makeDirectory(pathName);
    }
  } else if (isFile(client, absolute)) {
    throw new ParentNotDirectoryException(String.format(
        "Can't make directory for path %s since it is a file.", absolute));
  }
  return created;
}
 
Example 11
Source File: FTPFileSystem.java    From RDFS with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private FileStatus[] listStatus(FTPClient client, Path file)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  FileStatus fileStat = getFileStatus(client, absolute);
  if (!fileStat.isDir()) {
    return new FileStatus[] { fileStat };
  }
  FTPFile[] ftpFiles = client.listFiles(absolute.toUri().getPath());
  FileStatus[] fileStats = new FileStatus[ftpFiles.length];
  for (int i = 0; i < ftpFiles.length; i++) {
    fileStats[i] = getFileStatus(ftpFiles[i], absolute);
  }
  return fileStats;
}
 
Example 12
Source File: FTPFileSystem.java    From RDFS with Apache License 2.0 6 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private boolean delete(FTPClient client, Path file, boolean recursive)
    throws IOException {
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  String pathName = absolute.toUri().getPath();
  FileStatus fileStat = getFileStatus(client, absolute);
  if (!fileStat.isDir()) {
    return client.deleteFile(pathName);
  }
  FileStatus[] dirEntries = listStatus(client, absolute);
  if (dirEntries != null && dirEntries.length > 0 && !(recursive)) {
    throw new IOException("Directory: " + file + " is not empty.");
  }
  if (dirEntries != null) {
    for (int i = 0; i < dirEntries.length; i++) {
      delete(client, new Path(absolute, dirEntries[i].getPath()), recursive);
    }
  }
  return client.removeDirectory(pathName);
}
 
Example 13
Source File: FTPFileSystem.java    From big-c with Apache License 2.0 5 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private FileStatus getFileStatus(FTPClient client, Path file)
    throws IOException {
  FileStatus fileStat = null;
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  Path parentPath = absolute.getParent();
  if (parentPath == null) { // root dir
    long length = -1; // Length of root dir on server not known
    boolean isDir = true;
    int blockReplication = 1;
    long blockSize = DEFAULT_BLOCK_SIZE; // Block Size not known.
    long modTime = -1; // Modification time of root dir not known.
    Path root = new Path("/");
    return new FileStatus(length, isDir, blockReplication, blockSize,
        modTime, root.makeQualified(this));
  }
  String pathName = parentPath.toUri().getPath();
  FTPFile[] ftpFiles = client.listFiles(pathName);
  if (ftpFiles != null) {
    for (FTPFile ftpFile : ftpFiles) {
      if (ftpFile.getName().equals(file.getName())) { // file found in dir
        fileStat = getFileStatus(ftpFile, parentPath);
        break;
      }
    }
    if (fileStat == null) {
      throw new FileNotFoundException("File " + file + " does not exist.");
    }
  } else {
    throw new FileNotFoundException("File " + file + " does not exist.");
  }
  return fileStat;
}
 
Example 14
Source File: FTPFileSystem.java    From RDFS with Apache License 2.0 5 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private FileStatus getFileStatus(FTPClient client, Path file)
    throws IOException {
  FileStatus fileStat = null;
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  Path parentPath = absolute.getParent();
  if (parentPath == null) { // root dir
    long length = -1; // Length of root dir on server not known
    boolean isDir = true;
    int blockReplication = 1;
    long blockSize = DEFAULT_BLOCK_SIZE; // Block Size not known.
    long modTime = -1; // Modification time of root dir not known.
    Path root = new Path("/");
    return new FileStatus(length, isDir, blockReplication, blockSize,
        modTime, root.makeQualified(this));
  }
  String pathName = parentPath.toUri().getPath();
  FTPFile[] ftpFiles = client.listFiles(pathName);
  if (ftpFiles != null) {
    for (FTPFile ftpFile : ftpFiles) {
      if (ftpFile.getName().equals(file.getName())) { // file found in dir
        fileStat = getFileStatus(ftpFile, parentPath);
        break;
      }
    }
    if (fileStat == null) {
      throw new FileNotFoundException("File " + file + " does not exist.");
    }
  } else {
    throw new FileNotFoundException("File " + file + " does not exist.");
  }
  return fileStat;
}
 
Example 15
Source File: FTPFileSystem.java    From hadoop-gpu with Apache License 2.0 5 votes vote down vote up
/**
 * Convenience method, so that we don't open a new connection when using this
 * method from within another method. Otherwise every API invocation incurs
 * the overhead of opening/closing a TCP connection.
 */
private FileStatus getFileStatus(FTPClient client, Path file)
    throws IOException {
  FileStatus fileStat = null;
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  Path parentPath = absolute.getParent();
  if (parentPath == null) { // root dir
    long length = -1; // Length of root dir on server not known
    boolean isDir = true;
    int blockReplication = 1;
    long blockSize = DEFAULT_BLOCK_SIZE; // Block Size not known.
    long modTime = -1; // Modification time of root dir not known.
    Path root = new Path("/");
    return new FileStatus(length, isDir, blockReplication, blockSize,
        modTime, root.makeQualified(this));
  }
  String pathName = parentPath.toUri().getPath();
  FTPFile[] ftpFiles = client.listFiles(pathName);
  if (ftpFiles != null) {
    for (FTPFile ftpFile : ftpFiles) {
      if (ftpFile.getName().equals(file.getName())) { // file found in dir
        fileStat = getFileStatus(ftpFile, parentPath);
        break;
      }
    }
    if (fileStat == null) {
      throw new FileNotFoundException("File " + file + " does not exist.");
    }
  } else {
    throw new FileNotFoundException("File " + file + " does not exist.");
  }
  return fileStat;
}
 
Example 16
Source File: FTPFileSystem.java    From hadoop with Apache License 2.0 5 votes vote down vote up
@Override
public FSDataInputStream open(Path file, int bufferSize) throws IOException {
  FTPClient client = connect();
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  FileStatus fileStat = getFileStatus(client, absolute);
  if (fileStat.isDirectory()) {
    disconnect(client);
    throw new FileNotFoundException("Path " + file + " is a directory.");
  }
  client.allocate(bufferSize);
  Path parent = absolute.getParent();
  // Change to parent directory on the
  // server. Only then can we read the
  // file
  // on the server by opening up an InputStream. As a side effect the working
  // directory on the server is changed to the parent directory of the file.
  // The FTP client connection is closed when close() is called on the
  // FSDataInputStream.
  client.changeWorkingDirectory(parent.toUri().getPath());
  InputStream is = client.retrieveFileStream(file.getName());
  FSDataInputStream fis = new FSDataInputStream(new FTPInputStream(is,
      client, statistics));
  if (!FTPReply.isPositivePreliminary(client.getReplyCode())) {
    // The ftpClient is an inconsistent state. Must close the stream
    // which in turn will logout and disconnect from FTP server
    fis.close();
    throw new IOException("Unable to open file: " + file + ", Aborting");
  }
  return fis;
}
 
Example 17
Source File: FTPFileSystem.java    From big-c with Apache License 2.0 5 votes vote down vote up
@Override
public FSDataInputStream open(Path file, int bufferSize) throws IOException {
  FTPClient client = connect();
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  FileStatus fileStat = getFileStatus(client, absolute);
  if (fileStat.isDirectory()) {
    disconnect(client);
    throw new FileNotFoundException("Path " + file + " is a directory.");
  }
  client.allocate(bufferSize);
  Path parent = absolute.getParent();
  // Change to parent directory on the
  // server. Only then can we read the
  // file
  // on the server by opening up an InputStream. As a side effect the working
  // directory on the server is changed to the parent directory of the file.
  // The FTP client connection is closed when close() is called on the
  // FSDataInputStream.
  client.changeWorkingDirectory(parent.toUri().getPath());
  InputStream is = client.retrieveFileStream(file.getName());
  FSDataInputStream fis = new FSDataInputStream(new FTPInputStream(is,
      client, statistics));
  if (!FTPReply.isPositivePreliminary(client.getReplyCode())) {
    // The ftpClient is an inconsistent state. Must close the stream
    // which in turn will logout and disconnect from FTP server
    fis.close();
    throw new IOException("Unable to open file: " + file + ", Aborting");
  }
  return fis;
}
 
Example 18
Source File: FTPFileSystem.java    From RDFS with Apache License 2.0 4 votes vote down vote up
/**
 * A stream obtained via this call must be closed before using other APIs of
 * this class or else the invocation will block.
 */
@Override
public FSDataOutputStream create(Path file, FsPermission permission,
    boolean overwrite, int bufferSize, short replication, long blockSize,
    Progressable progress) throws IOException {
  final FTPClient client = connect();
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  if (exists(client, file)) {
    if (overwrite) {
      delete(client, file);
    } else {
      disconnect(client);
      throw new IOException("File already exists: " + file);
    }
  }
  Path parent = absolute.getParent();
  if (parent == null || !mkdirs(client, parent, FsPermission.getDefault())) {
    parent = (parent == null) ? new Path("/") : parent;
    disconnect(client);
    throw new IOException("create(): Mkdirs failed to create: " + parent);
  }
  client.allocate(bufferSize);
  // Change to parent directory on the server. Only then can we write to the
  // file on the server by opening up an OutputStream. As a side effect the
  // working directory on the server is changed to the parent directory of the
  // file. The FTP client connection is closed when close() is called on the
  // FSDataOutputStream.
  client.changeWorkingDirectory(parent.toUri().getPath());
  FSDataOutputStream fos = new FSDataOutputStream(client.storeFileStream(file
      .getName()), statistics) {
    @Override
    public void close() throws IOException {
      super.close();
      if (!client.isConnected()) {
        throw new FTPException("Client not connected");
      }
      boolean cmdCompleted = client.completePendingCommand();
      disconnect(client);
      if (!cmdCompleted) {
        throw new FTPException("Could not complete transfer, Reply Code - "
            + client.getReplyCode());
      }
    }
  };
  if (!FTPReply.isPositivePreliminary(client.getReplyCode())) {
    // The ftpClient is an inconsistent state. Must close the stream
    // which in turn will logout and disconnect from FTP server
    fos.close();
    throw new IOException("Unable to create file: " + file + ", Aborting");
  }
  return fos;
}
 
Example 19
Source File: FTPFileSystem.java    From big-c with Apache License 2.0 4 votes vote down vote up
/**
 * A stream obtained via this call must be closed before using other APIs of
 * this class or else the invocation will block.
 */
@Override
public FSDataOutputStream create(Path file, FsPermission permission,
    boolean overwrite, int bufferSize, short replication, long blockSize,
    Progressable progress) throws IOException {
  final FTPClient client = connect();
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  FileStatus status;
  try {
    status = getFileStatus(client, file);
  } catch (FileNotFoundException fnfe) {
    status = null;
  }
  if (status != null) {
    if (overwrite && !status.isDirectory()) {
      delete(client, file, false);
    } else {
      disconnect(client);
      throw new FileAlreadyExistsException("File already exists: " + file);
    }
  }
  
  Path parent = absolute.getParent();
  if (parent == null || !mkdirs(client, parent, FsPermission.getDirDefault())) {
    parent = (parent == null) ? new Path("/") : parent;
    disconnect(client);
    throw new IOException("create(): Mkdirs failed to create: " + parent);
  }
  client.allocate(bufferSize);
  // Change to parent directory on the server. Only then can we write to the
  // file on the server by opening up an OutputStream. As a side effect the
  // working directory on the server is changed to the parent directory of the
  // file. The FTP client connection is closed when close() is called on the
  // FSDataOutputStream.
  client.changeWorkingDirectory(parent.toUri().getPath());
  FSDataOutputStream fos = new FSDataOutputStream(client.storeFileStream(file
      .getName()), statistics) {
    @Override
    public void close() throws IOException {
      super.close();
      if (!client.isConnected()) {
        throw new FTPException("Client not connected");
      }
      boolean cmdCompleted = client.completePendingCommand();
      disconnect(client);
      if (!cmdCompleted) {
        throw new FTPException("Could not complete transfer, Reply Code - "
            + client.getReplyCode());
      }
    }
  };
  if (!FTPReply.isPositivePreliminary(client.getReplyCode())) {
    // The ftpClient is an inconsistent state. Must close the stream
    // which in turn will logout and disconnect from FTP server
    fos.close();
    throw new IOException("Unable to create file: " + file + ", Aborting");
  }
  return fos;
}
 
Example 20
Source File: FTPFileSystem.java    From hadoop with Apache License 2.0 4 votes vote down vote up
/**
 * A stream obtained via this call must be closed before using other APIs of
 * this class or else the invocation will block.
 */
@Override
public FSDataOutputStream create(Path file, FsPermission permission,
    boolean overwrite, int bufferSize, short replication, long blockSize,
    Progressable progress) throws IOException {
  final FTPClient client = connect();
  Path workDir = new Path(client.printWorkingDirectory());
  Path absolute = makeAbsolute(workDir, file);
  FileStatus status;
  try {
    status = getFileStatus(client, file);
  } catch (FileNotFoundException fnfe) {
    status = null;
  }
  if (status != null) {
    if (overwrite && !status.isDirectory()) {
      delete(client, file, false);
    } else {
      disconnect(client);
      throw new FileAlreadyExistsException("File already exists: " + file);
    }
  }
  
  Path parent = absolute.getParent();
  if (parent == null || !mkdirs(client, parent, FsPermission.getDirDefault())) {
    parent = (parent == null) ? new Path("/") : parent;
    disconnect(client);
    throw new IOException("create(): Mkdirs failed to create: " + parent);
  }
  client.allocate(bufferSize);
  // Change to parent directory on the server. Only then can we write to the
  // file on the server by opening up an OutputStream. As a side effect the
  // working directory on the server is changed to the parent directory of the
  // file. The FTP client connection is closed when close() is called on the
  // FSDataOutputStream.
  client.changeWorkingDirectory(parent.toUri().getPath());
  FSDataOutputStream fos = new FSDataOutputStream(client.storeFileStream(file
      .getName()), statistics) {
    @Override
    public void close() throws IOException {
      super.close();
      if (!client.isConnected()) {
        throw new FTPException("Client not connected");
      }
      boolean cmdCompleted = client.completePendingCommand();
      disconnect(client);
      if (!cmdCompleted) {
        throw new FTPException("Could not complete transfer, Reply Code - "
            + client.getReplyCode());
      }
    }
  };
  if (!FTPReply.isPositivePreliminary(client.getReplyCode())) {
    // The ftpClient is an inconsistent state. Must close the stream
    // which in turn will logout and disconnect from FTP server
    fos.close();
    throw new IOException("Unable to create file: " + file + ", Aborting");
  }
  return fos;
}