public DatagramStringWriter(String host) 
{
                                       
    this(host, SYSLOG_PORT, null, null);
}

This constructor assumes that it is sending to a remote syslog daemon on the normal syslog port (514), and uses the default platform character encoding when converting the message string to a byte sequence.

 public DatagramStringWriter(String host,
    int port) 
{
    this(host, port, null, null);
}

This constructor sends messages to the specified host and port, and uses the default platform character encoding when converting the message string to a byte sequence.

 public DatagramStringWriter(String host,
    int port,
    String encoding) 
{
    this(host, port, null, null);
}

This constructor sends messages to the specified host and port, and uses the specified character encoding when converting the message string to a byte sequence.

 public DatagramStringWriter(String host,
    int port,
    String encoding,
    String prefix) 
{
    this.host = host;
    this.port = port;
    this.encoding = encoding;
    this.prefix = prefix;
    try {
      this.address = InetAddress.getByName(host);
    }
    catch (UnknownHostException e) {
      LogLog.error("Could not find " + host +
			 ". All logging will FAIL.", e);
    }
    try {
      this.ds = new DatagramSocket();
    }
    catch (SocketException e) {
      e.printStackTrace();
      LogLog.error("Could not instantiate DatagramSocket to " + host +
			 ". All logging will FAIL.", e);
    }
}

This constructor sends messages to the specified host and port, and uses the specified character encoding when converting the message string to a byte sequence; the specified prefix (which may be null) is prepended to each message.

 public  void close() 
{

}

 public  void flush() 
{

}

 public  void setPrefix(String prefix) 
{
    this.prefix = prefix;
}

Set a string to be prefixed to every message sent by this Writer. For example, this method could be used to prepend a syslog facility/priority code on the front of each message.

Note that this method is not synchronised, so should not be called in a situation where other threads may be logging messages at the same moment.

 public  void write(String string) throws IOException 
{
    if (prefix != null) {
      string = prefix + string;
    }
    byte[] rawData;
    if (this.encoding == null)
    {
      // convert to byte sequence using platform's default encoding
      rawData = string.getBytes();
    }
    else
    {
      // convert to specified encoding - which may be sequence of
      // 8-bit chars, or multi-byte encodings like UTF-8 or UTF-16.
      // The receiving end had better be expecting whatever encoding
      // is used here on the sending end!
      rawData = string.getBytes(encoding);
    }
    DatagramPacket packet =
      new DatagramPacket(
                 rawData,
					       rawData.length,
					       address,
                 port);
    if(this.ds != null)
    {
      ds.send(packet);
    }
    else
    {
      LogLog.error(
        "write: failed to create DatagramPacket");
    }
}

 public  void write(char[] buf,
    int off,
    int len) throws IOException 
{
    this.write(new String(buf, off, len));
}