Package com.atlassian.confluence.impl.backuprestore.restore.persisters

Class ObjectPersister

java.lang.Object

com.atlassian.confluence.impl.backuprestore.restore.persisters.ObjectPersister

public class ObjectPersister
extends Object

Composite persister. Stores imported objects in batches using different persisters. The purpose of this class is to combine multiple Persisters. The class breaks down the list of imported objects into smaller batches and stores each batch asynchronously using multiple/different persisters.

Since:

8.2.0

Constructor Summary

Constructors

Constructor	Description
ObjectPersister(ParallelTasksExecutor parallelTasksExecutor, List<Persister> persisters)
ObjectPersister(ParallelTasksExecutor parallelTasksExecutor, List<Persister> persisters, int batchSize)	Provides an ability to change batch size for tests.

Method Summary

Modifier and Type	Method	Description
Collection<Future<?>>	persistAsynchronously(Collection<ImportedObjectV2> objectsToPersist, String info)	Run object persisting asynchronously.
Future<?>	persistAsynchronouslyInOneTransaction(Collection<ImportedObjectV2> objectsToPersist, String info)	Persist a collection on objects in one transaction asynchronously.
void	waitUntilAllJobsFinish(Collection<Future<?>> futures)

Methods inherited from class java.lang.Object

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

Constructor Details

ObjectPersister

public ObjectPersister(ParallelTasksExecutor parallelTasksExecutor,
 List<Persister> persisters)

ObjectPersister

public ObjectPersister(ParallelTasksExecutor parallelTasksExecutor,
 List<Persister> persisters,
 int batchSize)

Provides an ability to change batch size for tests.

Method Details

persistAsynchronously

public Collection<Future<?>> persistAsynchronously(Collection<ImportedObjectV2> objectsToPersist,
 String info)

Run object persisting asynchronously. Can accept any number of records and can split them to a few partitions and persist them in a few different transactions. Returns the collections of the async task futures.

persistAsynchronouslyInOneTransaction

public Future<?> persistAsynchronouslyInOneTransaction(Collection<ImportedObjectV2> objectsToPersist,
 String info)

Persist a collection on objects in one transaction asynchronously. It guarantees that all records will be persisted in one and only one transaction. The caller is responsible for not providing large amount of objects. Returns the future of the async persisting task.

waitUntilAllJobsFinish

public void waitUntilAllJobsFinish(Collection<Future<?>> futures)
                            throws BackupRestoreException

Throws:

BackupRestoreException