Package dk.netarkivet.archive.distribute

Class ArchiveMessageHandler

java.lang.Object

dk.netarkivet.archive.distribute.ArchiveMessageHandler

All Implemented Interfaces:

ArchiveMessageVisitor, javax.jms.MessageListener

Direct Known Subclasses:

ArcRepositoryServer, BitarchiveMonitorServer, BitarchiveServer, ChecksumArchiveServer, NonFunctionalArcRepositoryServer

public abstract class ArchiveMessageHandler
extends Object
implements ArchiveMessageVisitor, javax.jms.MessageListener

This default message handler shields of all unimplemented methods from the ArchiveMessageVisitor interface.

Classes should not implement ArchiveMessageVisitor but extend this class.

See Also:

ArchiveMessageVisitor

Constructor Summary

Constructors

Constructor	Description
ArchiveMessageHandler()	Creates a ArchiveMessageHandler object.

Method Summary

Modifier and Type	Method	Description
void	onMessage(javax.jms.Message msg)	Unpacks and calls accept() on the message object.
void	visit(AdminDataMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(StoreMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(BatchEndedMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(BatchMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(BatchReplyMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(GetFileMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(GetMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(HeartBeatMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(RemoveAndGetFileMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(UploadMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(CorrectMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(GetAllChecksumsMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(GetAllFilenamesMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.
void	visit(GetChecksumMessage msg)	This method should be overridden and implemented by a sub class if message handling is wanted.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArchiveMessageHandler

public ArchiveMessageHandler()

Creates a ArchiveMessageHandler object.

Method Detail

onMessage

public void onMessage(javax.jms.Message msg)

Unpacks and calls accept() on the message object.

This method catches all exceptions and logs them.

Specified by:

onMessage in interface javax.jms.MessageListener

Parameters:

msg - a ObjectMessage

visit

public void visit(BatchEndedMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - a BatchEndedMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(BatchMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - a BatchMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(BatchReplyMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - a BatchReplyMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(GetFileMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - a GetFileMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(GetMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - a GetMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(HeartBeatMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - a HeartBeatMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(StoreMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - a StoreMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(UploadMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - an UploadMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(AdminDataMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - a AdminDataMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(RemoveAndGetFileMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - a RemoveAndGetFile

Throws:

PermissionDenied - when invoked

visit

public void visit(CorrectMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - an CorrectMessage for correcting a record.

Throws:

PermissionDenied - when invoked

visit

public void visit(GetChecksumMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - the GetChecksumMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(GetAllChecksumsMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - the GetAllChecksumMessage

Throws:

PermissionDenied - when invoked

visit

public void visit(GetAllFilenamesMessage msg)
           throws PermissionDenied

This method should be overridden and implemented by a sub class if message handling is wanted.

Specified by:

visit in interface ArchiveMessageVisitor

Parameters:

msg - an GetAllFilenamesMessage

Throws:

PermissionDenied - when invoked