net.clackrouter.protocol
Class VNSProtocolCharCoder

java.lang.Object
  net.clackrouter.protocol.VNSProtocolCharCoder

public class VNSProtocolCharCoder
extends java.lang.Object

Transforms arbitrary strings into a buffer of bytes and vice versa using US ASCII encoding and decoding.

Field Summary

static java.nio.charset.Charset	charset The US ASCII character set of the coder
static java.nio.charset.CharsetDecoder	decoder Decoder of the US ASCII byte buffers
static java.nio.charset.CharsetEncoder	encoder Encoder of the US ASCII strings

Constructor Summary

VNSProtocolCharCoder()

Method Summary

static java.lang.String	decode(java.nio.ByteBuffer byteBuffer) Decodes the supplied byte buffer into a string using US ASCII decoding.
static java.lang.String	decode(java.nio.ByteBuffer byteBuffer, boolean trim) Decodes the supplied byte buffer into a string using US ASCII decoding.
static java.lang.String	decode(java.nio.ByteBuffer byteBuffer, int length) Decodes the supplied byte buffer into a string using US ASCII decoding.
static java.nio.ByteBuffer	encode(java.lang.String message) Encodes the supplied message into a byte buffer using US ASCII encoding.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

charset

public static java.nio.charset.Charset charset

The US ASCII character set of the coder

encoder

public static java.nio.charset.CharsetEncoder encoder

Encoder of the US ASCII strings

decoder

public static java.nio.charset.CharsetDecoder decoder

Decoder of the US ASCII byte buffers

Constructor Detail

VNSProtocolCharCoder

public VNSProtocolCharCoder()

Method Detail

encode

public static java.nio.ByteBuffer encode(java.lang.String message)
                                  throws java.nio.charset.CharacterCodingException

Encodes the supplied message into a byte buffer using US ASCII encoding.

Parameters:

message - Message to be encoded

Returns:

Byte buffer containing the encoded message

Throws:

java.nio.charset.CharacterCodingException

decode

public static java.lang.String decode(java.nio.ByteBuffer byteBuffer)
                               throws java.nio.charset.CharacterCodingException

Decodes the supplied byte buffer into a string using US ASCII decoding.

Parameters:

byteBuffer - Byte buffer containing the encoded messasge

Returns:

Decoded message

Throws:

java.nio.charset.CharacterCodingException

decode

public static java.lang.String decode(java.nio.ByteBuffer byteBuffer,
                                      int length)
                               throws java.nio.charset.CharacterCodingException

Decodes the supplied byte buffer into a string using US ASCII decoding. The returned message is less than or equal to the specified length.

Parameters:

byteBuffer - Byte buffer containing the encoded messasge

length - Length of the returned message

Returns:

Decoded message

Throws:

java.nio.charset.CharacterCodingException

decode

public static java.lang.String decode(java.nio.ByteBuffer byteBuffer,
                                      boolean trim)
                               throws java.nio.charset.CharacterCodingException

Decodes the supplied byte buffer into a string using US ASCII decoding. Remove all the trailing spaces, starting from the first occurence of a space in the string.

Parameters:

byteBuffer - Byte buffer containing the encoded messasge

trim - If true, the message will be trimmed from the right

Returns:

Decoded message

Throws:

java.nio.charset.CharacterCodingException