Interface FileProcessor


public interface FileProcessor
A utility component to perform file-based operations.
  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static interface 
    A listener object that is notified for every progress made while copying files.
  • Method Summary

    Modifier and Type
    Method
    Description
    void
    copy(File source, File target)
    Copies the specified source file to the given target file.
    long
    copy(File source, File target, FileProcessor.ProgressListener listener)
    Copies the specified source file to the given target file.
    boolean
    mkdirs(File directory)
    Creates the directory named by the given abstract pathname, including any necessary but nonexistent parent directories.
    void
    move(File source, File target)
    Moves the specified source file to the given target file.
    readChecksum(File checksumFile)
    Reads checksum from specified file.
    void
    write(File target, InputStream source)
    Writes the given stream to a file.
    void
    write(File target, String data)
    Writes the given data to a file.
    void
    writeChecksum(File checksumFile, String checksum)
    Writes checksum to specified file.
  • Method Details

    • mkdirs

      boolean mkdirs(File directory)
      Creates the directory named by the given abstract pathname, including any necessary but nonexistent parent directories. Note that if this operation fails it may have succeeded in creating some of the necessary parent directories.
      Parameters:
      directory - The directory to create, may be null.
      Returns:
      true if and only if the directory was created, along with all necessary parent directories; false otherwise
    • write

      void write(File target, String data) throws IOException
      Writes the given data to a file. UTF-8 is assumed as encoding for the data. Creates the necessary directories for the target file. In case of an error, the created directories will be left on the file system.
      Parameters:
      target - The file to write to, must not be null. This file will be overwritten.
      data - The data to write, may be null.
      Throws:
      IOException - If an I/O error occurs.
    • write

      void write(File target, InputStream source) throws IOException
      Writes the given stream to a file. Creates the necessary directories for the target file. In case of an error, the created directories will be left on the file system.
      Parameters:
      target - The file to write to, must not be null. This file will be overwritten.
      source - The stream to write to the file, must not be null.
      Throws:
      IOException - If an I/O error occurs.
    • move

      void move(File source, File target) throws IOException
      Moves the specified source file to the given target file. If the target file already exists, it is overwritten. Creates the necessary directories for the target file. In case of an error, the created directories will be left on the file system.
      Parameters:
      source - The file to move from, must not be null.
      target - The file to move to, must not be null.
      Throws:
      IOException - If an I/O error occurs.
    • copy

      void copy(File source, File target) throws IOException
      Copies the specified source file to the given target file. Creates the necessary directories for the target file. In case of an error, the created directories will be left on the file system.
      Parameters:
      source - The file to copy from, must not be null.
      target - The file to copy to, must not be null.
      Throws:
      IOException - If an I/O error occurs.
    • copy

      long copy(File source, File target, FileProcessor.ProgressListener listener) throws IOException
      Copies the specified source file to the given target file. Creates the necessary directories for the target file. In case of an error, the created directories will be left on the file system.
      Parameters:
      source - The file to copy from, must not be null.
      target - The file to copy to, must not be null.
      listener - The listener to notify about the copy progress, may be null.
      Returns:
      The number of copied bytes.
      Throws:
      IOException - If an I/O error occurs.
    • readChecksum

      String readChecksum(File checksumFile) throws IOException
      Reads checksum from specified file.
      Throws:
      IOException - in case of any IO error.
      Since:
      1.8.0
    • writeChecksum

      void writeChecksum(File checksumFile, String checksum) throws IOException
      Writes checksum to specified file.
      Throws:
      IOException - in case of any IO error.
      Since:
      1.8.0