Constructor Detail

• FromNetASCIIInputStream

  public FromNetASCIIInputStream(InputStream input)

  Creates a FromNetASCIIInputStream instance that wraps an existing InputStream.

  Parameters:

  input - the stream to wrap

Method Detail

• isConversionRequired

  public static final boolean isConversionRequired()

  Returns true if the NetASCII line separator differs from the system line separator, false if they are the same. This method is useful to determine whether or not you need to instantiate a FromNetASCIIInputStream object.

  Returns:

  True if the NETASCII line separator differs from the local system line separator, false if they are the same.

• read

  public int read()
           throws IOException

  Reads and returns the next byte in the stream. If the end of the message has been reached, returns -1. Note that a call to this method may result in multiple reads from the underlying input stream in order to convert NETASCII line separators to the local line separator format. This is transparent to the programmer and is only mentioned for completeness.

  Overrides:

  read in class PushbackInputStream

  Returns:

  The next character in the stream. Returns -1 if the end of the stream has been reached.

  Throws:

  IOException - If an error occurs while reading the underlying stream.

• read

  public int read(byte[] buffer)
           throws IOException

  Reads the next number of bytes from the stream into an array and returns the number of bytes read. Returns -1 if the end of the stream has been reached.

  Overrides:

  read in class FilterInputStream

  Parameters:

  buffer - The byte array in which to store the data.

  Returns:

  The number of bytes read. Returns -1 if the end of the message has been reached.

  Throws:

  IOException - If an error occurs in reading the underlying stream.

• read

  public int read(byte[] buffer,
         int offset,
         int length)
           throws IOException

  Reads the next number of bytes from the stream into an array and returns the number of bytes read. Returns -1 if the end of the message has been reached. The characters are stored in the array starting from the given offset and up to the length specified.

  Overrides:

  read in class PushbackInputStream

  Parameters:

  buffer - The byte array in which to store the data.

  offset - The offset into the array at which to start storing data.

  length - The number of bytes to read.

  Returns:

  The number of bytes read. Returns -1 if the end of the stream has been reached.

  Throws:

  IOException - If an error occurs while reading the underlying stream.

• available

  public int available()
                throws IOException

  Returns the number of bytes that can be read without blocking EXCEPT when newline conversions have to be made somewhere within the available block of bytes. In other words, you really should not rely on the value returned by this method if you are trying to avoid blocking.

  Overrides:

  available in class PushbackInputStream

  Throws:

  IOException