Package mops.businesslogic.file

Class FileInfoServiceImpl

java.lang.Object

mops.businesslogic.file.FileInfoServiceImpl

All Implemented Interfaces:

FileInfoService

@Service
public class FileInfoServiceImpl
extends java.lang.Object
implements FileInfoService

Handles meta data for files.

Constructor Summary

Constructors

Constructor	Description
FileInfoServiceImpl(FileInfoRepository fileInfoRepo)

Method Summary

Modifier and Type	Method	Description
void	deleteFileInfo(long fileId)	Delete file from database by id.
java.util.Set<java.lang.Long>	fetchAllFileInfoIds()	Fetches all available FileInfo ids.
java.util.List<FileInfo>	fetchAllFilesInDirectory(long dirId)	Lists all files in a specific directory.
java.util.Set<java.lang.Long>	fetchAllOrphanedFileInfos()	Fetches all FileInfos which are in non existing directories.
FileInfo	fetchFileInfo(long fileId)	Get a file by id.
long	getFileCountInGroup(long groupId)	Get the total number of files in a group.
long	getStorageUsageInGroup(long groupId)	Get the total number of bytes used by that group.
long	getTotalFileCount()	Get the total number of files in all groups.
long	getTotalStorageUsage()	Get the total number of bytes used by all groups.
FileInfo	saveFileInfo(FileInfo fileInfo)	Save file to database.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileInfoServiceImpl

public FileInfoServiceImpl(FileInfoRepository fileInfoRepo)

Method Detail

fetchAllFilesInDirectory

public java.util.List<FileInfo> fetchAllFilesInDirectory(long dirId)
                                                  throws MopsException

Lists all files in a specific directory.

Specified by:

fetchAllFilesInDirectory in interface FileInfoService

Parameters:

dirId - directory id

Returns:

a list of files in that directory

Throws:

MopsException

fetchFileInfo

public FileInfo fetchFileInfo(long fileId)
                       throws MopsException

Get a file by id.

Specified by:

fetchFileInfo in interface FileInfoService

Parameters:

fileId - file id

Returns:

a FileInfo object

Throws:

MopsException

saveFileInfo

public FileInfo saveFileInfo(FileInfo fileInfo)
                      throws MopsException

Save file to database.

Specified by:

saveFileInfo in interface FileInfoService

Parameters:

fileInfo - Metadata of a file

Returns:

the freshly saved FileInfo

Throws:

MopsException

deleteFileInfo

public void deleteFileInfo(long fileId)
                    throws MopsException

Delete file from database by id.

Specified by:

deleteFileInfo in interface FileInfoService

Parameters:

fileId - file id

Throws:

MopsException

getStorageUsageInGroup

public long getStorageUsageInGroup(long groupId)
                            throws MopsException

Get the total number of bytes used by that group.

Specified by:

getStorageUsageInGroup in interface FileInfoService

Parameters:

groupId - group

Returns:

bytes used

Throws:

MopsException

getTotalStorageUsage

public long getTotalStorageUsage()
                          throws MopsException

Get the total number of bytes used by all groups.

Specified by:

getTotalStorageUsage in interface FileInfoService

Returns:

bytes used

Throws:

MopsException

getFileCountInGroup

public long getFileCountInGroup(long groupId)
                         throws MopsException

Get the total number of files in a group.

Specified by:

getFileCountInGroup in interface FileInfoService

Parameters:

groupId - group

Returns:

file count

Throws:

MopsException

getTotalFileCount

public long getTotalFileCount()
                       throws MopsException

Get the total number of files in all groups.

Specified by:

getTotalFileCount in interface FileInfoService

Returns:

file count

Throws:

MopsException

fetchAllFileInfoIds

public java.util.Set<java.lang.Long> fetchAllFileInfoIds()
                                                  throws MopsException

Fetches all available FileInfo ids.

Specified by:

fetchAllFileInfoIds in interface FileInfoService

Returns:

all ids

Throws:

MopsException - on error

fetchAllOrphanedFileInfos

public java.util.Set<java.lang.Long> fetchAllOrphanedFileInfos()
                                                        throws MopsException

Fetches all FileInfos which are in non existing directories.

Specified by:

fetchAllOrphanedFileInfos in interface FileInfoService

Returns:

all ids

Throws:

MopsException - on error