Constructor Detail

• IOUtils

  public IOUtils()

Method Detail

• copy

  public static void copy(InputStream inputStream,
                          OutputStream outputStream)
                   throws IOException

  Writes the content provided by the given source input stream into the given destination output stream.

  The input stream is guaranteed to be closed at the end of this method.

  Sample use:

    static void copy(InputStream inputStream, File file) throws IOException {
      FileOutputStream out = new FileOutputStream(file);
      try {
        IOUtils.copy(inputStream, out);
      } finally {
        out.close();
      }
    }
   

  Parameters:

  inputStream - source input stream

  outputStream - destination output stream

  Throws:

  IOException

• copy

  public static void copy(InputStream inputStream,
                          OutputStream outputStream,
                          boolean closeInputStream)
                   throws IOException

  Writes the content provided by the given source input stream into the given destination output stream, optionally closing the input stream.

  Sample use:

    static void copy(InputStream inputStream, File file) throws IOException {
      FileOutputStream out = new FileOutputStream(file);
      try {
        IOUtils.copy(inputStream, out, true);
      } finally {
        out.close();
      }
    }
   

  Parameters:

  inputStream - source input stream

  outputStream - destination output stream

  closeInputStream - whether the input stream should be closed at the end of this method

  Throws:

  IOException

• computeLength

  public static long computeLength(StreamingContent content)
                            throws IOException

  Computes and returns the byte content length for a streaming content by calling StreamingContent.writeTo(OutputStream) on a fake output stream that only counts bytes written.

  Parameters:

  content - streaming content

  Throws:

  IOException

• serialize

  public static byte[] serialize(Object value)
                          throws IOException

  Serializes the given object value to a newly allocated byte array.

  Parameters:

  value - object value to serialize

  Throws:

  IOException

  Since:

  1.16

• serialize

  public static void serialize(Object value,
                               OutputStream outputStream)
                        throws IOException

  Serializes the given object value to an output stream, and close the output stream.

  Parameters:

  value - object value to serialize

  outputStream - output stream to serialize into

  Throws:

  IOException

  Since:

  1.16

• deserialize

  public static <S extends Serializable> S deserialize(byte[] bytes)
                                                throws IOException

  Deserializes the given byte array into to a newly allocated object.

  Parameters:

  bytes - byte array to deserialize or null for null result

  Returns:

  new allocated object or null for null input

  Throws:

  IOException

  Since:

  1.16

• deserialize

  public static <S extends Serializable> S deserialize(InputStream inputStream)
                                                throws IOException

  Deserializes the given input stream into to a newly allocated object, and close the input stream.

  Parameters:

  inputStream - input stream to deserialize

  Throws:

  IOException

  Since:

  1.16

• isSymbolicLink

  public static boolean isSymbolicLink(File file)
                                throws IOException

  Returns whether the given file is a symbolic link.

  Throws:

  IOException

  Since:

  1.16