com.atlassian.confluence.upgrade.upgradetask

Class DeleteTemporaryAttachmentUploadsUpgradeTask

java.lang.Object

com.atlassian.confluence.upgrade.AbstractUpgradeTask

com.atlassian.confluence.upgrade.upgradetask.DeleteTemporaryAttachmentUploadsUpgradeTask

All Implemented Interfaces:

BackupSupport, UpgradeTask, UpgradeTaskInfo, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware

public class DeleteTemporaryAttachmentUploadsUpgradeTask
extends AbstractUpgradeTask

This upgrade task removes all attachment-*.tmp files from java temp directory.

The system had a bug CONFSERVER-41622 when temporary attachment upload parts were stored to disk, but not removed. As a part of the fix during the upgrade we find and remove all such files to reclaim disk space.

Since:

7.2.0

Field Summary

Fields inherited from interface com.atlassian.confluence.upgrade.UpgradeTask

log

Constructor Summary

Constructors

Constructor and Description
DeleteTemporaryAttachmentUploadsUpgradeTask()

Method Summary

Modifier and Type	Method and Description
boolean	breaksBackwardCompatibility() Returns true if a new export can't be imported in an older instance.
void	doUpgrade() Perform the upgrade.
String	getBuildNumber()
boolean	runOnSpaceImport() Returns true if an older Space can't be imported in a new instance without running this task.

Methods inherited from class com.atlassian.confluence.upgrade.AbstractUpgradeTask

addAllErrors, addError, addError, getConstraint, getErrors, getName, getShortDescription, isDatabaseUpgrade, setBeanName, setBuildNumber, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

DeleteTemporaryAttachmentUploadsUpgradeTask

public DeleteTemporaryAttachmentUploadsUpgradeTask()

Method Detail

getBuildNumber

public String getBuildNumber()

Specified by:

getBuildNumber in interface UpgradeTaskInfo

Overrides:

getBuildNumber in class AbstractUpgradeTask

Returns:

The build number that this upgrade is applicable to

doUpgrade

public void doUpgrade()

Description copied from interface: UpgradeTask

Perform the upgrade.

breaksBackwardCompatibility

public boolean breaksBackwardCompatibility()

Description copied from interface: BackupSupport

Returns true if a new export can't be imported in an older instance.

Breaking compatibility means a snapshot of the new version will not work at all with the previous version. For example:

• A destructive operation (Some data is replaced by another) breaks backwards compatibility
• Adding a optional column does NOT break backwards compatibility
• Data is copied to another column doesn't breaks backwards compatibility
• A build number incrementation doesn't breaks backwards compatibility

The best way to test is whether a newer export can be imported (with fully working features) in an older instance.

runOnSpaceImport

public boolean runOnSpaceImport()

Description copied from interface: BackupSupport

Returns true if an older Space can't be imported in a new instance without running this task. For example:

• A task updating macro names in the BodyContent table would be blocking.
• Tasks which updates data related to the space would be blocking.
• A task upgrading the user table wouldn't be blocking.
• Adding a mandatory column on space-related content breaks space import

Note that tasks don't run on space import yet, so we just reject the import in this case.