Package com.atlassian.confluence.impl.pages.attachments.filesystem

Class ContentDirectoryStructureAttachmentDataFileSystemAdapter

java.lang.Object

com.atlassian.confluence.impl.pages.attachments.filesystem.ContentDirectoryStructureAttachmentDataFileSystemAdapter

All Implemented Interfaces:

AttachmentDataFileSystem

public final class ContentDirectoryStructureAttachmentDataFileSystemAdapter
extends Object
implements AttachmentDataFileSystem

The purpose of this adapter is to switch between different attachment storage structures implementations AttachmentDataFileSystem. The version 003 needs to be supported while the migration to version 004 is in progress. The class prioritises version 004 and if it can't find a file then it will fallback to version 003.

Since:

8.1.0

Method Summary

Modifier and Type	Method	Description
static ContentDirectoryStructureAttachmentDataFileSystemAdapter	create(ContentDirectoryStructureAttachmentDataFileSystemV003 structureV003, ContentDirectoryStructureAttachmentDataFileSystemV004 structureV004, ZduManager zduManager)
boolean	dataExistsForAttachment(AttachmentRef attachment)	Indicates whether the filesystem contains data for the given attachment
void	deleteAllAttachmentVersions(AttachmentRef attachment, AttachmentRef.Container originalContent)	Delete all data corresponding to all versions of the given attachment
void	deleteSingleAttachmentVersion(AttachmentRef attachment, AttachmentRef.Container originalContent)	Delete the data corresponding to a single attachment version
void	deleteSingleAttachmentVersion(AttachmentRef attachment, AttachmentRef.Container originalContent, AttachmentDataStreamType dataStreamType)	Delete the data of the specified stream type corresponding to a single attachment version
AttachmentDataStream	getAttachmentData(AttachmentRef attachment, AttachmentDataStreamType dataStreamType)	Fetches the data for a given attachment version and data stream type
AttachmentDataStream	getAttachmentData(AttachmentRef attachment, AttachmentDataStreamType dataStreamType, Optional<RangeRequest> range)	Fetches the specified range of data for a given attachment version and data stream type
AttachmentDataFile<com.atlassian.dc.filestore.api.compat.FilesystemPath>	getAttachmentDataFile(long attachmentId, Long containerId, Long spaceId, Integer attachmentVersion, AttachmentDataStreamType dataStreamType)	This method won't support S3 attachment storage.
AttachmentStorageVersion	getStructureVersion()	Version of the attachment storage structure.
void	moveAttachment(AttachmentRef oldAttachment, AttachmentRef newAttachment, AttachmentRef.Container newContent)	Deprecated. since 8.1.0
void	moveAttachments(AttachmentRef.Container contentEntity, AttachmentRef.Space oldSpace, AttachmentRef.Space newSpace)	Deprecated. since 8.1.0.
void	moveDataForAttachmentVersion(AttachmentRef sourceAttachmentVersion, AttachmentRef targetAttachmentVersion)	Deprecated. since 8.1.0
void	prepareForMigrationTo()	Deprecated. since 8.1.0.
boolean	saveAttachmentData(AttachmentRef attachmentVersion, AttachmentDataStream attachmentDataStream, boolean overwrite, org.springframework.util.unit.DataSize expectedFileSize)	Save new data corresponding to the given attachment.

Methods inherited from class java.lang.Object

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

Method Detail

create

public static ContentDirectoryStructureAttachmentDataFileSystemAdapter create(ContentDirectoryStructureAttachmentDataFileSystemV003 structureV003,
                                                                              ContentDirectoryStructureAttachmentDataFileSystemV004 structureV004,
                                                                              ZduManager zduManager)

dataExistsForAttachment

public boolean dataExistsForAttachment(AttachmentRef attachment)

Description copied from interface: AttachmentDataFileSystem

Indicates whether the filesystem contains data for the given attachment

Specified by:

dataExistsForAttachment in interface AttachmentDataFileSystem

moveAttachment

@Deprecated
public void moveAttachment(AttachmentRef oldAttachment,
                           AttachmentRef newAttachment,
                           AttachmentRef.Container newContent)

Deprecated.

since 8.1.0

Description copied from interface: AttachmentDataFileSystem

Move all data relating to one attachment to a new directory corresponding to the given new attachment and content entity.

Specified by:

moveAttachment in interface AttachmentDataFileSystem

Parameters:

oldAttachment - The attachment whose data is to be moved

newAttachment - The attachment to which the data should be moved to

newContent - The content entity corresponding to the new attachment

saveAttachmentData

public boolean saveAttachmentData(AttachmentRef attachmentVersion,
                                  AttachmentDataStream attachmentDataStream,
                                  boolean overwrite,
                                  org.springframework.util.unit.DataSize expectedFileSize)

Description copied from interface: AttachmentDataFileSystem

Save new data corresponding to the given attachment.

Specified by:

saveAttachmentData in interface AttachmentDataFileSystem

Parameters:

attachmentVersion - The attachment to which the data should be associated

attachmentDataStream - The new data

overwrite - If true, any existing data will be overwritten. If false, does nothing if data already exists.

expectedFileSize - The expected size of the data being written

Returns:

true if the data was written, false otherwise (e.g. no overwrite)

getAttachmentDataFile

public AttachmentDataFile<com.atlassian.dc.filestore.api.compat.FilesystemPath> getAttachmentDataFile(long attachmentId,
                                                                                                      @Nullable
                                                                                                      Long containerId,
                                                                                                      @Nullable
                                                                                                      Long spaceId,
                                                                                                      Integer attachmentVersion,
                                                                                                      AttachmentDataStreamType dataStreamType)

Description copied from interface: AttachmentDataFileSystem

This method won't support S3 attachment storage. Use at your own risk.

Specified by:

getAttachmentDataFile in interface AttachmentDataFileSystem

deleteAllAttachmentVersions

public void deleteAllAttachmentVersions(AttachmentRef attachment,
                                        AttachmentRef.Container originalContent)

Delete all data corresponding to all versions of the given attachment

This method will remove any empty folders left after removing the attachment data.

Specified by:

deleteAllAttachmentVersions in interface AttachmentDataFileSystem

Parameters:

attachment - the attachment for which data should be removed

originalContent - the content the attachment belongs to

moveDataForAttachmentVersion

@Deprecated
public void moveDataForAttachmentVersion(AttachmentRef sourceAttachmentVersion,
                                         AttachmentRef targetAttachmentVersion)

Deprecated.

since 8.1.0

Description copied from interface: AttachmentDataFileSystem

Move the data associated with one attachment version, to being associated with a different attachment version

Specified by:

moveDataForAttachmentVersion in interface AttachmentDataFileSystem

Parameters:

sourceAttachmentVersion - The attachment version containing the data

targetAttachmentVersion - The attachment version to which the data should be moved

deleteSingleAttachmentVersion

public void deleteSingleAttachmentVersion(AttachmentRef attachment,
                                          AttachmentRef.Container originalContent)

Delete the data corresponding to a single attachment version

This method will remove all attachment files and any empty folders left after removing the attachment data.

Specified by:

deleteSingleAttachmentVersion in interface AttachmentDataFileSystem

Parameters:

attachment - the attachment for which data should be removed

originalContent - the content the attachment belongs to

deleteSingleAttachmentVersion

public void deleteSingleAttachmentVersion(AttachmentRef attachment,
                                          AttachmentRef.Container originalContent,
                                          AttachmentDataStreamType dataStreamType)

Description copied from interface: AttachmentDataFileSystem

Delete the data of the specified stream type corresponding to a single attachment version

Specified by:

deleteSingleAttachmentVersion in interface AttachmentDataFileSystem

Parameters:

attachment - The attachment whose data should be deleted

originalContent - The content entity associated with the attachment

dataStreamType - The attachment stream type

getAttachmentData

public AttachmentDataStream getAttachmentData(AttachmentRef attachment,
                                              AttachmentDataStreamType dataStreamType)

Description copied from interface: AttachmentDataFileSystem

Fetches the data for a given attachment version and data stream type

Specified by:

getAttachmentData in interface AttachmentDataFileSystem

Parameters:

attachment - The attachment version for which the data is to be fetched

dataStreamType - The type of the data stream to be fetched

Returns:

The AttachmentDataStream containing the result

getAttachmentData

public AttachmentDataStream getAttachmentData(AttachmentRef attachment,
                                              AttachmentDataStreamType dataStreamType,
                                              Optional<RangeRequest> range)

Description copied from interface: AttachmentDataFileSystem

Fetches the specified range of data for a given attachment version and data stream type

Specified by:

getAttachmentData in interface AttachmentDataFileSystem

Parameters:

attachment - The attachment version for which the data is to be fetched

dataStreamType - The type of the data stream to be fetched

range - The range of the data stream to be fetched

Returns:

The AttachmentDataStream containing the result

moveAttachments

@Deprecated
public void moveAttachments(AttachmentRef.Container contentEntity,
                            AttachmentRef.Space oldSpace,
                            AttachmentRef.Space newSpace)

Deprecated.

since 8.1.0. Space is no longer a part of the attachment path since storage v004.

Description copied from interface: AttachmentDataFileSystem

Move all data for all versions of all attachments corresponding to the given content entity in the given space, to the same entity in a different space.

Specified by:

moveAttachments in interface AttachmentDataFileSystem

Parameters:

contentEntity - The content entity whose attachment data is to be moved

oldSpace - The original space of the content entity

newSpace - The new space of the content entity

prepareForMigrationTo

@Deprecated
public void prepareForMigrationTo()

Deprecated.

since 8.1.0. Migration DB <-> FS should be already done and is not supported in 8.1.

Description copied from interface: AttachmentDataFileSystem

Prepare the data store for a migration from another type of data store.

Specified by:

prepareForMigrationTo in interface AttachmentDataFileSystem

getStructureVersion

public AttachmentStorageVersion getStructureVersion()

Description copied from interface: AttachmentDataFileSystem

Version of the attachment storage structure.

Specified by:

getStructureVersion in interface AttachmentDataFileSystem