protected virtual void ConnectToDatabase(DbSettings dbSettings)
{
switch (this.Status)
{
case EntityAppStatus.Created:
this.Init();
break;
case EntityAppStatus.Shutdown:
return;
}
ActivationLog.Info(" Connecting to data source {0}.", dbSettings.DataSourceName);
dbSettings.CheckConnectivity(rethrow: true);
var dbModel = GetCreateDbModel(dbSettings, ActivationLog);
var db = new Database(dbModel, dbSettings);
var ds = new DataSource(dbSettings.DataSourceName, db);
this.DataAccess.RegisterDataSource(ds);
this.DataSourceEvents.OnDataSourceChange(new DataSourceEventArgs(db, dbSettings.DataSourceName, DataSourceEventType.Connecting));
CheckUpgradeDatabase(db);
ActivationLog.Flush();
this.Status = EntityAppStatus.Connected;
this.DataSourceEvents.OnDataSourceChange(new DataSourceEventArgs(db, dbSettings.DataSourceName, DataSourceEventType.Connected));
ActivationLog.Info("Connected to {0}.", dbSettings.DataSourceName);
ActivationLog.Flush();
}
} //method
public void CheckUpgradeDatabase(Database db)
{
//Invoke upgrade
// Update db model
if (db.Settings.UpgradeMode == DbUpgradeMode.Never)
{
ActivationLog.Info("Data source upgrade mode set to Never, skipping db upgrade.");
return;
}
// upgrade
var updateMgr = new DbUpgradeManager(db, ActivationLog);
var upgradeInfo = updateMgr.UpgradeDatabase(); //it might throw exception
// _events.OnDataSourceStatusChanging(new DataSourceEventArgs(dataSource, DataSourceEventType.Connected));
}
public static string LastFatalError; // error log sets this if it fails to persist error
protected virtual void InitApp()
{
Util.Check(this.EntityClassProvider != null,
"EntityApp.{0} may not be null. Use {1} method from Vita.Entities.Emit assembly to create provider instance.",
nameof(EntityClassProvider), "Vita.Entities.Emit.EntityClassEmitter.CreateProvider()");
RegisterService <IEntityClassProvider>(EntityClassProvider);
Status = EntityAppStatus.Initializing;
CreateLogFileWriters();
ActivationLog.Info("Initializing EntityApp {0}.====================================", this.AppName);
this.AppEvents.OnInitializing(EntityAppInitStep.Initializing);
//Check dependencies
foreach (var mod in this.Modules)
{
var depList = mod.GetDependencies();
foreach (var dep in depList)
{
var ok = Modules.Any(m => dep.IsTypeOrSubType(m));
if (!ok)
{
ActivationLog.Error("Module {0} requires dependent module {1} which is not included in the app.", mod.GetType(), dep);
}
}
}
ActivationLog.CheckErrors();
// Init linked apps
foreach (var linkedApp in LinkedApps)
{
if (linkedApp.Status == EntityAppStatus.Created)
{
linkedApp.Init();
}
}
//Build model
var builder = new EntityModelBuilder(this);
builder.BuildModel();
ActivationLog.CheckErrors();
//Notify modules that entity app is constructed
foreach (var module in this.Modules)
{
module.Init();
}
//init services
var servList = this.GetAllServices();
for (int i = 0; i < servList.Count; i++)
{
var service = servList[i];
var iServiceInit = service as IEntityServiceBase;
if (iServiceInit != null)
{
iServiceInit.Init(this);
}
}
//complete initialization
this.AppEvents.OnInitializing(EntityAppInitStep.Initialized);
foreach (var module in this.Modules)
{
module.AppInitComplete();
}
builder.CheckErrors();
Status = EntityAppStatus.Initialized;
ActivationLog.Info("App {0} initialized.", this.AppName);
}