org.apache.directory.server.dns.io.decoder
Class MailExchangeRecordDecoder

java.lang.Object
  org.apache.directory.server.dns.io.decoder.MailExchangeRecordDecoder

All Implemented Interfaces:

RecordDecoder

public class MailExchangeRecordDecoder
extends Object
implements RecordDecoder

A decoder for MX records. MX records are encoded as per RFC-1035:

   3.3.9. MX RDATA format

     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
     |                  PREFERENCE                   |
     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
     /                   EXCHANGE                    /
     /                                               /
     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+

   where:

   PREFERENCE
     A 16 bit integer which specifies the preference given to this RR among 
     others at the same owner. Lower values are preferred. 
     
   EXCHANGE
     A  which specifies a host willing to act as a mail exchange
     for the owner name.
 

Author:

Apache Directory Project

Constructor Summary

MailExchangeRecordDecoder()

Method Summary

Map<String,Object>

decode(org.apache.mina.core.buffer.IoBuffer byteBuffer, short length) Decodes the given length of resource record data into attributes.

Methods inherited from class java.lang.Object

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

Constructor Detail

MailExchangeRecordDecoder

public MailExchangeRecordDecoder()

Method Detail

decode

public Map<String,Object> decode(org.apache.mina.core.buffer.IoBuffer byteBuffer,
                                 short length)
                          throws IOException

Description copied from interface: RecordDecoder

Decodes the given length of resource record data into attributes. The type and number of attributes depends on the type of the resource record.

Specified by:

decode in interface RecordDecoder

Returns:

The map of attributes.

Throws:

IOException