Package com.atlassian.confluence.impl.index

Class NoopIndexRecoveryService

java.lang.Object

com.atlassian.confluence.impl.index.NoopIndexRecoveryService

All Implemented Interfaces:

IndexRecoveryService, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean

public class NoopIndexRecoveryService
extends Object
implements IndexRecoveryService, org.springframework.beans.factory.InitializingBean, org.springframework.beans.factory.DisposableBean

A noop implementation for when index recovery process is not required for nodes to join the cluster, e.g. when using externally-managed index such as OpenSearch.

Since:

8.8

Constructor Summary

Constructors

Constructor	Description
NoopIndexRecoveryService(JournalStateStore journalStateStore, JournalDao journalDao, com.atlassian.event.api.EventPublisher eventPublisher, com.atlassian.plugin.PluginAccessor pluginAccessor)

Method Summary

Modifier and Type	Method	Description
void	afterPropertiesSet()
boolean	createIndexBackup(JournalIdentifier journalId, String indexDirName, IndexRecoverer indexRecoverer)	Creates an index snapshot in the cluster shared home.
void	destroy()
void	handleStartingEvent(com.atlassian.plugin.event.events.PluginFrameworkResumingEvent event)
boolean	isIndexRecoveryRequired(JournalIdentifier journalId, String indexDirName)	Checks to see whether the index needs to be recovered.
boolean	recoverIndex(JournalIdentifier journalId, String indexDirName)	Recovers the index required by asking other nodes in the cluster for a snapshot of their index and copying it to its local home directory.
boolean	recoverIndexFromSharedHome(JournalIdentifier journalId, String indexDirName)	Recovers the index snapshot stored in the shared home.

Methods inherited from class java.lang.Object

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

Constructor Details

NoopIndexRecoveryService

public NoopIndexRecoveryService(JournalStateStore journalStateStore,
 JournalDao journalDao,
 com.atlassian.event.api.EventPublisher eventPublisher,
 com.atlassian.plugin.PluginAccessor pluginAccessor)

Method Details

isIndexRecoveryRequired

public boolean isIndexRecoveryRequired(JournalIdentifier journalId,
 String indexDirName)

Description copied from interface: IndexRecoveryService

Checks to see whether the index needs to be recovered.

This will be true if the index folder does not exist, or, if the index is copied over from a live system and is invalid, or, if the journal has been purged past where the node is currently processing, Note, this will always return false if the instance is not clustered.

Specified by:

isIndexRecoveryRequired in interface IndexRecoveryService

Parameters:

journalId - the index to check whether it needs to be recovered

indexDirName - the name of the subdirectory containing the Lucene index

recoverIndex

public boolean recoverIndex(JournalIdentifier journalId,
 String indexDirName)

Description copied from interface: IndexRecoveryService

Recovers the index required by asking other nodes in the cluster for a snapshot of their index and copying it to its local home directory.

This will overwrite the local index files if it already exists.

Specified by:

recoverIndex in interface IndexRecoveryService

Parameters:

journalId - the index to recover

indexDirName - the name of the subdirectory containing the Lucene index

Returns:

true if index recovery was successful, false otherwise.

recoverIndexFromSharedHome

public boolean recoverIndexFromSharedHome(JournalIdentifier journalId,
 String indexDirName)

Description copied from interface: IndexRecoveryService

Recovers the index snapshot stored in the shared home.

This will overwrite the local index files if it already exists.

Specified by:

recoverIndexFromSharedHome in interface IndexRecoveryService

Parameters:

journalId - the index to recover

indexDirName - the name of the subdirectory where the Lucene index will be moved to

Returns:

true if index recovery was successful, false otherwise.

createIndexBackup

public boolean createIndexBackup(JournalIdentifier journalId,
 String indexDirName,
 IndexRecoverer indexRecoverer)

Description copied from interface: IndexRecoveryService

Creates an index snapshot in the cluster shared home.

This will overwrite existing snapshots of the same index in the shared home.

Specified by:

createIndexBackup in interface IndexRecoveryService

Parameters:

journalId - the index to backup

indexDirName - the name of the subdirectory containing the Lucene index

indexRecoverer - the index recover module that will take the lucene index snapshot

Returns:

true if successful

handleStartingEvent

@EventListener
public void handleStartingEvent(com.atlassian.plugin.event.events.PluginFrameworkResumingEvent event)

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

Throws:

Exception

destroy

public void destroy()
             throws Exception

Specified by:

destroy in interface org.springframework.beans.factory.DisposableBean

Throws:

Exception