Package dk.netarkivet.harvester.distribute

Class HarvesterMessage

java.lang.Object

dk.netarkivet.common.distribute.NetarkivetMessage

dk.netarkivet.harvester.distribute.HarvesterMessage

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

CrawlProgressMessage, CrawlStatusMessage, DoOneCrawlMessage, FrontierReportMessage, HarvesterReadyMessage, HarvesterRegistrationRequest, HarvesterRegistrationResponse, IndexReadyMessage, IndexRequestMessage, JobEndedMessage

public abstract class HarvesterMessage
extends NetarkivetMessage
implements Serializable

Common base class for messages exchanged between a harvester server and a harvester client.

See Also:

Serialized Form

Field Summary

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

replyOfId

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	HarvesterMessage(ChannelID to, ChannelID replyTo)	Creates a new HarvesterMessage.

Method Summary

Modifier and Type	Method	Description
abstract void	accept(HarvesterMessageVisitor v)	Should be implemented as a part of the visitor pattern.

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

HarvesterMessage

protected HarvesterMessage(ChannelID to,
                           ChannelID replyTo)

Creates a new HarvesterMessage.

Parameters:

to - the initial receiver of the message

replyTo - the initial sender of the message

Throws:

ArgumentNotValid - if to==replyTo or there is a null parameter.

Method Detail

accept

public abstract void accept(HarvesterMessageVisitor v)

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

Parameters:

v - A message visitor