/// <summary>
/// Get a list of restore candidates for the archive.
/// </summary>
/// <remarks>
/// Note that at the current time only one cadidate is returned at a time.
/// </remarks>
/// <returns>A restore candidate. null will be returned if no candidates exist.</returns>
public virtual RestoreQueue GetRestoreCandidate()
{
RestoreQueue queueItem;
using (IUpdateContext updateContext = PersistentStore.OpenUpdateContext(UpdateContextSyncMode.Flush))
{
QueryRestoreQueueParameters parms = new QueryRestoreQueueParameters();
parms.PartitionArchiveKey = _partitionArchive.GetKey();
parms.ProcessorId = ServerPlatform.ProcessorId;
parms.RestoreQueueStatusEnum = RestoreQueueStatusEnum.Pending;
IQueryRestoreQueue broker = updateContext.GetBroker<IQueryRestoreQueue>();
// Stored procedure only returns 1 result.
queueItem = broker.FindOne(parms);
if (queueItem != null)
updateContext.Commit();
}
return queueItem;
}
public override RestoreQueue GetRestoreCandidate()
{
RestoreQueue queueItem;
using (IUpdateContext updateContext = PersistentStore.OpenUpdateContext(UpdateContextSyncMode.Flush))
{
QueryRestoreQueueParameters parms = new QueryRestoreQueueParameters();
parms.PartitionArchiveKey = _partitionArchive.GetKey();
parms.ProcessorId = ServerPlatform.ProcessorId;
parms.RestoreQueueStatusEnum = RestoreQueueStatusEnum.Restoring;
IQueryRestoreQueue broker = updateContext.GetBroker<IQueryRestoreQueue>();
// Stored procedure only returns 1 result.
queueItem = broker.FindOne(parms);
if (queueItem != null)
updateContext.Commit();
}
if (queueItem == null)
{
using (IUpdateContext updateContext = PersistentStore.OpenUpdateContext(UpdateContextSyncMode.Flush))
{
RestoreQueueSelectCriteria criteria = new RestoreQueueSelectCriteria();
criteria.RestoreQueueStatusEnum.EqualTo(RestoreQueueStatusEnum.Restoring);
IRestoreQueueEntityBroker restoreQueueBroker = updateContext.GetBroker<IRestoreQueueEntityBroker>();
if (restoreQueueBroker.Count(criteria) > HsmSettings.Default.MaxSimultaneousRestores)
return null;
QueryRestoreQueueParameters parms = new QueryRestoreQueueParameters();
parms.PartitionArchiveKey = _partitionArchive.GetKey();
parms.ProcessorId = ServerPlatform.ProcessorId;
parms.RestoreQueueStatusEnum = RestoreQueueStatusEnum.Pending;
IQueryRestoreQueue broker = updateContext.GetBroker<IQueryRestoreQueue>();
parms.RestoreQueueStatusEnum = RestoreQueueStatusEnum.Pending;
queueItem = broker.FindOne(parms);
if (queueItem != null)
updateContext.Commit();
}
}
return queueItem;
}