Method Detail

• copy

  public static long copy(InputStream input,
          OutputStream output)
                   throws IOException

  Copies the content of a InputStream into an OutputStream. Uses a default buffer size of 8024 bytes.

  Parameters:

  input - the InputStream to copy

  output - the target Stream

  Returns:

  the number of bytes copied

  Throws:

  IOException - if an error occurs

• copy

  public static long copy(InputStream input,
          OutputStream output,
          int buffersize)
                   throws IOException

  Copies the content of a InputStream into an OutputStream

  Parameters:

  input - the InputStream to copy

  output - the target Stream

  buffersize - the buffer size to use

  Returns:

  the number of bytes copied

  Throws:

  IOException - if an error occurs

• skip

  public static long skip(InputStream input,
          long numToSkip)
                   throws IOException

  Skips the given number of bytes by repeatedly invoking skip on the given input stream if necessary.

  In a case where the stream's skip() method returns 0 before the requested number of bytes has been skip this implementation will fall back to using the read() method.

  This method will only skip less than the requested number of bytes if the end of the input stream has been reached.

  Parameters:

  input - stream to skip bytes in

  numToSkip - the number of bytes to skip

  Returns:

  the number of bytes actually skipped

  Throws:

  IOException - on error

• readFully

  public static int readFully(InputStream input,
              byte[] b)
                       throws IOException

  Reads as much from input as possible to fill the given array.

  This method may invoke read repeatedly to fill the array and only read less bytes than the length of the array if the end of the stream has been reached.

  Parameters:

  input - stream to read from

  b - buffer to fill

  Returns:

  the number of bytes actually read

  Throws:

  IOException - on error

• readFully

  public static int readFully(InputStream input,
              byte[] b,
              int offset,
              int len)
                       throws IOException

  Reads as much from input as possible to fill the given array with the given amount of bytes.

  This method may invoke read repeatedly to read the bytes and only read less bytes than the requested length if the end of the stream has been reached.

  Parameters:

  input - stream to read from

  b - buffer to fill

  offset - offset into the buffer to start filling at

  len - of bytes to read

  Returns:

  the number of bytes actually read

  Throws:

  IOException - if an I/O error has occurred

• readFully

  public static void readFully(ReadableByteChannel channel,
               ByteBuffer b)
                        throws IOException

  Reads b.remaining() bytes from the given channel starting at the current channel's position.

  This method reads repeatedly from the channel until the requested number of bytes are read. This method blocks until the requested number of bytes are read, the end of the channel is detected, or an exception is thrown.

  Parameters:

  channel - the channel to read from

  b - the buffer into which the data is read.

  Throws:

  IOException - - if an I/O error occurs.

  EOFException - - if the channel reaches the end before reading all the bytes.

• toByteArray

  public static byte[] toByteArray(InputStream input)
                            throws IOException

  Gets the contents of an InputStream as a byte[].

  This method buffers the input internally, so there is no need to use a BufferedInputStream.

  Parameters:

  input - the InputStream to read from

  Returns:

  the requested byte array

  Throws:

  NullPointerException - if the input is null

  IOException - if an I/O error occurs

  Since:

  1.5

• closeQuietly

  public static void closeQuietly(Closeable c)

  Closes the given Closeable and swallows any IOException that may occur.

  Parameters:

  c - Closeable to close, can be null

  Since:

  1.7