public DatabaseInstance GenerateDatabaseInstance(ServerInstance serverInstance, Slice slice, DatabaseVersion databaseVersion)
{
return GenerateDatabaseInstance(
serverInstance,
slice,
databaseVersion,
databaseDefinition.DatabaseInstanceNamePattern,
databaseDefinition.DatabaseNamePattern,
databaseVersion.SizeMultiplier,
true);
}
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>
/// Creates a deep copy of the passed object.
/// </summary>
/// <param name="old">A <b>Database Version</b> object to create the deep copy from.</param>
private void CopyMembers(DatabaseVersion old)
{
this.sizeMultiplier = old.sizeMultiplier;
}
/// <summary>
/// Copy contructor for doing deep copy of the <b>Database Version</b> objects.
/// </summary>
/// <param name="old">The <b>Database Version</b> to copy from.</param>
public DatabaseVersion(DatabaseVersion old)
: base(old)
{
CopyMembers(old);
}
public DatabaseInstance GenerateDatabaseInstance(ServerInstance serverInstance, List<DiskVolume> dataDiskVolumes, List<DiskVolume> logDiskVolumes, Slice slice, DatabaseVersion databaseVersion, string namePattern, string databaseNamePattern, double sizeFactor, bool generateFileGroups)
{
// --- Create the new database instance and set name
DatabaseInstance ndi = new DatabaseInstance(databaseDefinition);
ndi.ServerInstanceReference.Guid = serverInstance.Guid;
ndi.SliceReference.Guid = slice.Guid;
ndi.DatabaseVersionReference.Guid = databaseVersion.Guid;
ndi.Name = ExpressionProperty.ResolveExpression(ndi, namePattern);
ndi.DatabaseName = ExpressionProperty.ResolveExpression(ndi, databaseNamePattern);
ndi.Save();
if (generateFileGroups)
{
ndi.ServerInstance.Machine.LoadDiskVolumes(false);
databaseDefinition.LoadFileGroups(false);
slice.LoadPartitions(false);
List<Partition> partitions = new List<Partition>(slice.Partitions.Values.OrderBy(i => i.Number));
List<FileGroup> filegroups = new List<FileGroup>(databaseDefinition.FileGroups.Values.OrderBy(i => i.Number));
for (int fi = 0; fi < filegroups.Count; fi++)
{
// --- Create data and "log" file groups ---
if (filegroups[fi].LayoutType == FileGroupLayoutType.Monolithic ||
filegroups[fi].FileGroupType == FileGroupType.Log)
{
DatabaseInstanceFileGroup nfg = new DatabaseInstanceFileGroup(ndi);
nfg.FileGroupType = filegroups[fi].FileGroupType;
nfg.FileGroupName = nfg.Name = filegroups[fi].FileGroupName;
nfg.FileGroupReference.Guid = filegroups[fi].Guid;
nfg.PartitionReference.Guid = Guid.Empty;
nfg.AllocatedSpace = (long)(filegroups[fi].AllocatedSpace * sizeFactor);
nfg.Save();
nfg.GenerateInstanceFiles(dataDiskVolumes, sizeFactor);
}
else if (filegroups[fi].LayoutType == FileGroupLayoutType.Sliced)
{
for (int pi = 0; pi < partitions.Count; pi++)
{
DatabaseInstanceFileGroup nfg = new DatabaseInstanceFileGroup(ndi);
nfg.FileGroupType = filegroups[fi].FileGroupType;
nfg.FileGroupName = nfg.Name = string.Format("{0}_{1}", filegroups[fi].FileGroupName, pi);
nfg.FileGroupReference.Guid = filegroups[fi].Guid;
nfg.PartitionReference.Guid = partitions[pi].Guid;
nfg.AllocatedSpace = (long)(filegroups[fi].AllocatedSpace * sizeFactor);
nfg.Save();
nfg.GenerateInstanceFiles(dataDiskVolumes, sizeFactor);
}
}
else
{
throw new NotImplementedException();
}
}
}
return ndi;
}
public DatabaseInstance GenerateDatabaseInstance(ServerInstance serverInstance, Slice slice, DatabaseVersion databaseVersion, string namePattern, string databaseNamePattern, double sizeFactor, bool generateFileGroups)
{
return GenerateDatabaseInstance(serverInstance, null, null, slice, databaseVersion, namePattern, databaseNamePattern, sizeFactor, generateFileGroups);
}
//
public DatabaseInstance GetDatabaseInstance(DatabaseVersion databaseVersion, long partitionKeyValue)
{
// *** TODO: partitioning key interval limits (inclusive, exclusive!)
LoadSlices(false);
Slice slice = this.Slices.Values.First(x => x.From <= partitionKeyValue && x.To >= partitionKeyValue);
this.LoadDatabaseInstances(false);
return this.DatabaseInstances.Values.First(x => x.DatabaseVersionReference.Guid == databaseVersion.Guid && x.Slice.Guid == slice.Guid);
}
/// <summary>
/// Constructor for creating a new entity with object context and parent entity set.
/// </summary>
/// <param name="context">An object context class containing session information.</param>
/// <param name="parent">The parent entity in the entity hierarchy.</param>
public UserDatabaseInstance(DatabaseVersion parent)
: base(parent.Context, parent)
{
InitializeMembers();
}
/// <summary>
/// Copy contructor for doing deep copy of the <b>Database Version</b> objects.
/// </summary>
/// <param name="old">The <b>Database Version</b> to copy from.</param>
public DatabaseVersion(DatabaseVersion old)
: base(old)
{
CopyMembers(old);
}
/// <summary>
/// Initializes a database definition.
/// </summary>
/// <param name="serverVersion"></param>
public void GenerateDefaultChildren(ServerVersion serverVersion, string databaseVersionName)
{
// If not sliced, then create a default slice of FULL
if (databaseDefinition.LayoutType == DatabaseLayoutType.Mirrored ||
databaseDefinition.LayoutType == DatabaseLayoutType.Monolithic)
{
Slice sl = new Slice(databaseDefinition)
{
Name = Constants.FullSliceName,
System = databaseDefinition.System,
};
sl.Save();
}
else
{
throw new InvalidOperationException();
// Use slicing wizard instead
}
// Add primary filegroup
FileGroupLayoutType fglayout;
switch (databaseDefinition.LayoutType)
{
case DatabaseLayoutType.Sliced:
fglayout = FileGroupLayoutType.Sliced;
break;
case DatabaseLayoutType.Monolithic:
case DatabaseLayoutType.Mirrored:
fglayout = FileGroupLayoutType.Monolithic;
break;
default:
throw new NotImplementedException();
}
FileGroup fg = new FileGroup(databaseDefinition)
{
Name = Constants.PrimaryFileGroupName,
System = databaseDefinition.System,
FileGroupType = FileGroupType.Data,
LayoutType = fglayout,
AllocationType = FileGroupAllocationType.CrossVolume,
DiskVolumeType = DiskVolumeType.Data,
FileGroupName = Constants.PrimaryFileGroupName,
AllocatedSpace = Constants.PrimaryFileGroupSize,
FileCount = 0,
};
fg.Save();
// Add "log" file group
fg = new FileGroup(databaseDefinition)
{
Name = Constants.LogFileGroupName,
System = databaseDefinition.System,
FileGroupType = FileGroupType.Log,
LayoutType = FileGroupLayoutType.Monolithic,
AllocationType = FileGroupAllocationType.CrossVolume,
DiskVolumeType = DiskVolumeType.Log,
FileGroupName = Constants.LogFileGroupName,
AllocatedSpace = Constants.LogFileGroupSize,
FileCount = 0
};
fg.Save();
// Create default database version
DatabaseVersion dv = new DatabaseVersion(databaseDefinition)
{
Name = databaseVersionName,
System = databaseDefinition.System,
ServerVersion = serverVersion,
SizeMultiplier = 1.0f,
};
dv.Save();
}
/// <summary>
/// Creates a deep copy of the passed object.
/// </summary>
/// <param name="old">A <b>Database Version</b> object to create the deep copy from.</param>
private void CopyMembers(DatabaseVersion old)
{
this.sizeMultiplier = old.sizeMultiplier;
}
protected void Page_Load(object sender, EventArgs e)
{
item = new DatabaseDefinition(RegistryContext);
item.Guid = new Guid(Request.QueryString["guid"]);
item.Load();
item.LoadDatabaseVersions(false);
databaseVersions = new List<DatabaseVersion>(item.DatabaseVersions.Values);
if (!IsPostBack)
{
RefreshDatabaseVersionList();
}
// Load currently selected database version
databaseVersion = new DatabaseVersion(RegistryContext);
databaseVersion.Guid = new Guid(databaseVersionList.SelectedValue);
databaseVersion.Load();
// Load server instances
EntityFactory ef = new EntityFactory(RegistryContext);
serverInstances = new List<ServerInstance>(ef.FindAll<ServerInstance>()
.Where(i => i.ServerVersionReference.Guid == databaseVersion.ServerVersionReference.Guid)
.OrderBy(i => i.Machine.Number));
// Load slices
item.LoadSlices(false);
slices = new List<Slice>(item.Slices.Values);
if (!IsPostBack)
{
UpdateForm();
}
GenerateTable();
}
protected void Ok_Click(object sender, EventArgs e)
{
double sizefactor = double.Parse(SizeFactor.Text);
string postfix = String.Empty;
DatabaseVersion rs = new DatabaseVersion(RegistryContext);
rs.Guid = new Guid(databaseVersionList.SelectedValue);
rs.Load();
int q = 0;
for (int sli = 0; sli < slices.Count; sli++)
{
for (int ssi = 0; ssi < serverInstances.Count; ssi++)
{
CheckBox cb = (CheckBox)FindControlRecursive(string.Format("cb_{0}_{1}", sli, ssi));
if (cb.Checked)
{
switch (item.LayoutType)
{
case DatabaseLayoutType.Sliced:
break;
default:
postfix = String.Format("{0}", q.ToString("00"));
break;
}
var dii = new DatabaseInstanceInstaller(item);
dii.GenerateDatabaseInstance(serverInstances[ssi], slices[sli], rs, NamePattern.Text.Replace("[$Number]", postfix), DatabaseNamePattern.Text.Replace("[$Number]", postfix), sizefactor, GenerateFileGroups.Checked);
q++;
}
}
}
Response.Redirect(item.GetDetailsUrl(EntityGroup.Layout));
}
/// <summary>
/// Constructor for creating a new entity with object context and parent entity set.
/// </summary>
/// <param name="context">An object context class containing session information.</param>
/// <param name="parent">The parent entity in the entity hierarchy.</param>
public UserDatabaseInstance(DatabaseVersion parent)
: base(parent.Context, parent)
{
InitializeMembers();
}
public DatabaseInstance GetUserDatabaseInstance(DatabaseVersion databaseVersion)
{
LoadUserDatabaseInstances(true);
var udi = UserDatabaseInstances.Values.FirstOrDefault(i => i.DatabaseVersionReference.Guid == databaseVersion.Guid);
if (udi != null)
{
return udi.DatabaseInstance;
}
else
{
return null;
}
}
