/**
* Instantiates a storage manager by loading an existing volume database.
*
* @param dbs the database system
* @param db the database
*/
public BabuDBStorageManager(BabuDB dbs, Database db) throws DatabaseException {
this.dbMan = dbs.getDatabaseManager();
this.snapMan = dbs.getSnapshotManager();
this.database = db;
this.vcListeners = new LinkedList<VolumeChangeListener>();
volume = new BabuDBVolumeInfo();
volume.init(this);
}
/**
* Instantiates a storage manager by creating a new database.
*
* @param dbs the database system
* @param volumeId the volume ID
*/
public BabuDBStorageManager(
BabuDB dbs,
String volumeId,
String volumeName,
short fileAccessPolicyId,
short[] osdPolicy,
short[] replPolicy,
String ownerId,
String owningGroupId,
int perms,
ACLEntry[] acl,
org.xtreemfs.pbrpc.generatedinterfaces.GlobalTypes.StripingPolicy rootDirDefSp,
boolean allowSnaps,
long volumeQuota,
Map<String, String> attrs)
throws DatabaseException {
this.dbMan = dbs.getDatabaseManager();
this.snapMan = dbs.getSnapshotManager();
this.vcListeners = new LinkedList<VolumeChangeListener>();
this.volume = new BabuDBVolumeInfo();
TransactionalBabuDBUpdate update = new TransactionalBabuDBUpdate(dbMan);
update.createDatabase(volumeId, 5);
// atime, ctime, mtime
int time = (int) (TimeSync.getGlobalTime() / 1000);
// create the root directory; the name is the database name
createDir(1, 0, volumeName, time, time, time, ownerId, owningGroupId, perms, 0, true, update);
setLastFileId(1, update);
volume.init(
this,
update.getDatabaseName(),
volumeName,
osdPolicy,
replPolicy,
fileAccessPolicyId,
allowSnaps,
volumeQuota,
update);
// set the default striping policy
if (rootDirDefSp != null) setDefaultStripingPolicy(1, rootDirDefSp, true, update);
if (acl != null)
for (ACLEntry entry : acl) setACLEntry(1L, entry.getEntity(), entry.getRights(), update);
if (attrs != null)
for (Entry<String, String> attr : attrs.entrySet())
setXAttr(
1L,
SYSTEM_UID,
"xtreemfs.volattr." + attr.getKey(),
attr.getValue().getBytes(),
true,
update);
update.execute();
try {
database = dbMan.getDatabase(update.getDatabaseName());
} catch (Exception exc) {
throw new DatabaseException(exc);
}
notifyVolumeChange(volume);
}