dk.netarkivet.archive.bitarchive.distribute
Class HeartBeatMessage

java.lang.Object
  dk.netarkivet.common.distribute.NetarkivetMessage
      dk.netarkivet.archive.distribute.ArchiveMessage
          dk.netarkivet.archive.bitarchive.distribute.HeartBeatMessage

All Implemented Interfaces:

java.io.Serializable

public class HeartBeatMessage
extends ArchiveMessage

Simple class representing a HeartBeat message from a bit archive application. A heartbeat has an applicationId, that identifies the application that generated the heartbeat. TODO This class should probably contain more status data from bit archive application later.

See Also:

Serialized Form

Field Summary

Fields inherited from class dk.netarkivet.common.distribute.NetarkivetMessage

replyOfId

Constructor Summary

HeartBeatMessage(ChannelID inReceiver, java.lang.String applicationId)
Creates a heartbeat message.

Method Summary

void	accept(ArchiveMessageVisitor v) Should be implemented as a part of the visitor pattern.
java.lang.String	getBitarchiveID()
long	getTimestamp()
java.lang.String	toString() Retrieval of a string representation of this instance.

Methods inherited from class dk.netarkivet.common.distribute.NetarkivetMessage

getErrMsg, getID, getReplyOfId, getReplyTo, getTo, hasBeenSent, isOk, setNotOk, setNotOk

Methods inherited from class java.lang.Object

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

Constructor Detail

HeartBeatMessage

public HeartBeatMessage(ChannelID inReceiver,
                        java.lang.String applicationId)

Creates a heartbeat message. The time of the heartbeat is set to the creation of this object.

Parameters:

inReceiver - ChannelID for the recipient of this message.

applicationId - - id of the application that sent the heartbeat

Method Detail

getTimestamp

public long getTimestamp()

Returns:

time of heartbeat occurrence.

getBitarchiveID

public java.lang.String getBitarchiveID()

Returns:

id of the application that generated the heartbeat.

toString

public java.lang.String toString()

Retrieval of a string representation of this instance.

Overrides:

toString in class NetarkivetMessage

Returns:

The string representation of this instance.

accept

public void accept(ArchiveMessageVisitor v)

Should be implemented as a part of the visitor pattern. fx.: public void accept(ArchiveMessageVisitor v) { v.visit(this); }

Specified by:

accept in class ArchiveMessage

Parameters:

v - A message visitor

See Also:

ArchiveMessageVisitor