edu.ucsb.nceas.metacat.replication

Class ForceReplicationHandler

java.lang.Object

edu.ucsb.nceas.metacat.replication.ForceReplicationHandler

All Implemented Interfaces:

java.lang.Runnable

public class ForceReplicationHandler
extends java.lang.Object
implements java.lang.Runnable

A class to asyncronously force the replication of each server that has an entry in the xml_replication table. When run, this thread communicates with each server in the list and solicites a read of an updated or newly inserted document with a certain docid.

Constructor Summary

Constructors

Constructor and Description
ForceReplicationHandler(java.lang.String docid, boolean xml, java.lang.String myNotificationServer) Use this constructor when the action is implied.
ForceReplicationHandler(java.lang.String docid, java.lang.String action, boolean xml, java.lang.String myNotificationServer) Constructor of ForceReplicationHandler

Method Summary

Modifier and Type	Method and Description
void	run() Method to send force replication command to other server to get a new or updated docid

Methods inherited from class java.lang.Object

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

Constructor Detail

ForceReplicationHandler

public ForceReplicationHandler(java.lang.String docid,
                               java.lang.String action,
                               boolean xml,
                               java.lang.String myNotificationServer)

Constructor of ForceReplicationHandler

Parameters:

docid - the docid to force replicate

the - action that is being performed on the document (either INSERT or UPDATE)

xml - the docid is a xml document or not (data file)

notificationServer, - when a metacat A got forcereplication notification from B, then A will update its record. And A will notification other metacat in its serverlist to update this docid if A is a hub. But we don't want A to notify B again. B is nofitification of A.

ForceReplicationHandler

public ForceReplicationHandler(java.lang.String docid,
                               boolean xml,
                               java.lang.String myNotificationServer)

Use this constructor when the action is implied.

Method Detail

run

public void run()

Method to send force replication command to other server to get a new or updated docid

Specified by:

run in interface java.lang.Runnable