Package fr.gouv.vitam.storage.cold.server.simulator.service

Class InaLibraryService

java.lang.Object

fr.gouv.vitam.storage.cold.server.simulator.service.InaLibraryService

public class InaLibraryService
extends Object

Library Service for INA. Handles robotic commands (move, rewind, load, eject, etc.), virtual tape lifecycle (capacity, load/unload, slot allocation) and status queries. Source of truth: - Slots: TapeCatalogModel collection (tapes with slotIndex != null occupy that slot) - Drives: TapeDriveModel collection (persisted drive state) - TapeLibrarySpec is built dynamically on each getLibraryStatus() call; it is never stored in the database.

Constructor Summary

Constructors

Constructor	Description
InaLibraryService(InaTapeProxyConfiguration configuration, TapeCatalogRepository tapeCatalogRepository, TapeDriveRepository tapeDriveRepository, InaTapeHelper inaTapeHelper)

Method Summary

Modifier and Type	Method	Description
void	eject(int driveIndex)	Eject tape (simulated)
TapeDriveState	getDriveStatus(int driveIndex)	Retrieves the drive status from the persisted TapeDriveModel.
TapeLibraryState	getLibraryStatus()	Builds the library status dynamically.
void	goToEnd(int driveIndex)	Go to end of data (simulated)
void	loadTape(int slotNumber, int driveIndex)	Load tape from slot into drive.
void	move(int driveIndex, int position, boolean backward)	Move tape position (simulated)
void	rewind(int driveIndex)	Rewind tape (simulated)
void	unloadTape(int slotNumber, int driveIndex)	Unload tape from drive back to a slot.

Methods inherited from class java.lang.Object

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

Constructor Details

InaLibraryService

public InaLibraryService(InaTapeProxyConfiguration configuration,
 TapeCatalogRepository tapeCatalogRepository,
 TapeDriveRepository tapeDriveRepository,
 InaTapeHelper inaTapeHelper)

Method Details

move

public void move(int driveIndex,
 int position,
 boolean backward)
          throws InaTapeProxyException

Move tape position (simulated)

Throws:

InaTapeProxyException

rewind

public void rewind(int driveIndex)
            throws InaTapeProxyException

Rewind tape (simulated)

Throws:

InaTapeProxyException

goToEnd

public void goToEnd(int driveIndex)
             throws InaTapeProxyException

Go to end of data (simulated)

Throws:

InaTapeProxyException

eject

public void eject(int driveIndex)
           throws InaTapeProxyException

Eject tape (simulated)

Throws:

InaTapeProxyException

loadTape

public void loadTape(int slotNumber,
 int driveIndex)
              throws InaTapeProxyException

Load tape from slot into drive. Looks up the tape currently in the given slot, validates its status, then moves it into the drive (clears slotIndex on the tape, sets tape on drive). Thread-safety is ensured by: - synchronized method to prevent concurrent access - optimistic locking in repositories (version field)

Throws:

InaTapeProxyException

unloadTape

public void unloadTape(int slotNumber,
 int driveIndex)
                throws InaTapeProxyException

Unload tape from drive back to a slot. Assigns the next available slot to the tape, clears the drive. Thread-safety is ensured by: - synchronized method to prevent concurrent access - optimistic locking in repositories (version field)

Throws:

InaTapeProxyException

getDriveStatus

public TapeDriveState getDriveStatus(int driveIndex)
                              throws InaTapeProxyException

Retrieves the drive status from the persisted TapeDriveModel.

Throws:

InaTapeProxyException

getLibraryStatus

public TapeLibraryState getLibraryStatus()
                                  throws InaTapeProxyException

Builds the library status dynamically.

Throws:

InaTapeProxyException