public UserDatabaseInstance GenerateUserDatabaseInstance(DatabaseVersion databaseVersion)
{
// TODO: this part probably needs some optimization
// Load server instances that can store user databases
var ef = new EntityFactory(Context);
var sis = ef.FindAll<ServerInstance>()
.Where(i => i.ServerVersionReference.Guid == databaseVersion.ServerVersionReference.Guid)
.OrderBy(i => i.Machine.Number)
.ToArray();
if (sis.Length == 0)
{
throw new InvalidOperationException("At least one server instance has to configured for the database version."); // TODO
}
// Get current number of user databases
var dd = databaseVersion.DatabaseDefinition;
dd.LoadDatabaseInstances(false);
var dbnum = dd.DatabaseInstances.Count;
// Find a server that is available
int off = 0;
int sin = 0;
while (off < sis.Length)
{
sin = (dbnum + 1 + off) % sis.Length;
bool ok = true;
var diag = sis[sin].RunDiagnostics();
foreach (var d in diag)
{
if (d.Status != DiagnosticMessageStatus.OK)
{
ok = false;
break;
}
}
if (ok)
{
break;
}
off++;
}
// Default slice (FULL)
dd.LoadSlices(false);
var sl = dd.Slices[Constants.FullSliceName];
// Create physical database instance
var ddi = new DatabaseInstanceInstaller(databaseVersion.DatabaseDefinition);
var di = ddi.GenerateDatabaseInstance(
sis[sin],
sl,
databaseVersion);
di.Save();
// Add user database mapping
var udi = new UserDatabaseInstance(user);
udi.DatabaseVersion = databaseVersion;
udi.DatabaseInstance = di;
udi.Save();
return udi;
}
/// <summary>
/// Copy contructor for doing deep copy of the <b>Slice</b> objects.
/// </summary>
/// <param name="old">The <b>Slice</b> to copy from.</param>
public UserDatabaseInstance(UserDatabaseInstance old)
: base(old)
{
CopyMembers(old);
}
/// <summary>
/// Creates a deep copy of the passed object.
/// </summary>
/// <param name="old">A <b>Slice</b> object to create the deep copy from.</param>
private void CopyMembers(UserDatabaseInstance old)
{
}
/// <summary>
/// Creates a deep copy of the passed object.
/// </summary>
/// <param name="old">A <b>Slice</b> object to create the deep copy from.</param>
private void CopyMembers(UserDatabaseInstance old)
{
}
/// <summary>
/// Copy contructor for doing deep copy of the <b>Slice</b> objects.
/// </summary>
/// <param name="old">The <b>Slice</b> to copy from.</param>
public UserDatabaseInstance(UserDatabaseInstance old)
: base(old)
{
CopyMembers(old);
}
