Package com.atlassian.confluence.impl.index

Class DefaultIndexJournalService

java.lang.Object

com.atlassian.confluence.impl.journal.DefaultJournalService

com.atlassian.confluence.impl.index.DefaultIndexJournalService

All Implemented Interfaces:

IndexJournalService, JournalService

public class DefaultIndexJournalService
extends DefaultJournalService
implements IndexJournalService

Implementation of IndexJournalService. The supplied JournalManager is configured with the JournalStateStore implementation that's specific for indexing.

Since:

8.8

Constructor Summary

Constructors

Constructor	Description
DefaultIndexJournalService(JournalManager journalManager, SearchPlatformConfig searchPlatformConfig, com.atlassian.beehive.ClusterLockService clusterLockService)

Method Summary

Modifier and Type	Method	Description
<V> V	processNewEntries(@NonNull JournalIdentifier journalId, int maxEntries, @NonNull Function<Iterable<JournalEntry>,EntryProcessorResult<V>> entryProcessor)	Processes journal entries that were added since the last time this method was called for this journal on this cluster node.

Methods inherited from class com.atlassian.confluence.impl.journal.DefaultJournalService

countEntries, enqueue, peek, reset, waitForRecentEntriesToBecomeVisible

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.atlassian.confluence.api.service.journal.JournalService

countEntries, enqueue, peek, processEntries, reset, waitForRecentEntriesToBecomeVisible

Constructor Detail

DefaultIndexJournalService

public DefaultIndexJournalService(JournalManager journalManager,
                                  SearchPlatformConfig searchPlatformConfig,
                                  com.atlassian.beehive.ClusterLockService clusterLockService)

Method Detail

processNewEntries

public <V> V processNewEntries(@NonNull JournalIdentifier journalId,
                               int maxEntries,
                               @NonNull Function<Iterable<JournalEntry>,EntryProcessorResult<V>> entryProcessor)
                        throws ServiceException

Description copied from interface: JournalService

Processes journal entries that were added since the last time this method was called for this journal on this cluster node.

This method does not return entries that were added immediately before calling this method. Use JournalService.waitForRecentEntriesToBecomeVisible() for ensuring these entries will be included.

This method can miss some entries due to identifier assignment and entry insertion not being an atomic operation. The risk of missed entries can be reduced by creating new entries as close to transaction commit as possible.

If entryProcessor throws an exception, the same entries will be returned again when this method is next called for this journal on this cluster node.

New journal is automatically created if a journal with the given name does not exists.

Specified by:

processNewEntries in interface JournalService

Overrides:

processNewEntries in class DefaultJournalService

Parameters:

journalId - only entries with this journal id will be returned

maxEntries - maximum number of entries to process

entryProcessor - function that will process entries that were added since the last time

Returns:

result of entryProcessor

Throws:

ServiceException - if entries could not be fetched or the journal state could not be saved