private static async Task <ImplementationContainer> CreateImplementation(int appInstanceId, IServiceScopeFactory scopeFactory)
{
using (var scope = scopeFactory.CreateScope())
using (var dbContext = scope.ServiceProvider.GetService <MetadataDbContext>())
{
return(await ImplementationContainer.Create(scope, dbContext, appInstanceId));
}
}
public static async Task <ImplementationContainer> Create(IServiceScope scope, MetadataDbContext dbContext, int appInstanceId)
{
var instance = await dbContext.AppInstances.FirstOrDefaultAsync(x => x.Id == appInstanceId);
if (instance == null)
{
return(null);
}
if (!instance.IsEnabled)
{
return(null);
}
var appType = await dbContext.AppTypes.FirstOrDefaultAsync(x => x.Id == instance.AppTypeId);
var bundle = await MetadataBundle.FromDbWithoutNavigations(dbContext, instance.AppTypeId, instance.Id);
bundle.FixupRelationships();
var metadataCache = new MetadataCache(bundle);
var metadataModel = new MetadataModel(bundle);
var globalConfig = scope.ServiceProvider.GetRequiredService <IOptions <GlobalConfiguration> >().Value;
var config = scope.ServiceProvider.GetRequiredService <IConfiguration>();
var dataConnectionStringTemplate = config.GetConnectionString(instance.DataConnectionStringTemplateName);
if (string.IsNullOrWhiteSpace(dataConnectionStringTemplate))
{
var logger = scope.ServiceProvider.GetRequiredService <ILogger <ImplementationContainer> >();
logger.LogError($"No connection stirng named \"{instance.DataConnectionStringTemplateName}\" which is required for app instance {instance.Name}");
}
var lobConnectionStringTemplate = config.GetConnectionString(instance.LobConnectionStringTemplateName);
if (string.IsNullOrWhiteSpace(lobConnectionStringTemplate))
{
var logger = scope.ServiceProvider.GetRequiredService <ILogger <ImplementationContainer> >();
logger.LogError($"No connection stirng named \"{instance.LobConnectionStringTemplateName}\" which is required for app instance {instance.Name}");
}
InstanceSettings instanceSettings = null;
globalConfig?.InstanceSettings?.TryGetValue(instance.Name, out instanceSettings);
var instanceInfo = new InstanceInfo
{
AppInstanceId = appInstanceId,
AppTypeId = appType.Id,
InstanceName = instance.Name,
Provider = instance.DatabaseProviderId,
DataConnectionString = GetConnectionString(dataConnectionStringTemplate, instance.MainDatabaseName),
LobConnectionString = GetConnectionString(lobConnectionStringTemplate, instance.LobDatabaseName),
MigrateDatabase = instance.MigrateDatabase,
GeneratedCodeNamespace = instance.GeneratedCodeNamespace,
DbContextName = instance.DbContextName,
InstanceSettings = instanceSettings,
LoadBusinessFromAssemblyName = instanceSettings?.LoadBusinessFromAssemblyName,
SortOrder = instance.SortOrder,
};
var bridge = new BusinessAssemblyBridge(
instanceInfo, globalConfig,
scope.ServiceProvider.GetRequiredService <ILogger <BusinessAssemblyBridge> >());
var reflector = new BusinessReflector(metadataCache);
var implementationsContainer = new ImplementationContainer
{
Metadata = metadataCache,
MetadataModel = metadataModel,
BusinessAssemblyBridge = bridge,
Reflector = reflector,
InstanceInfo = instanceInfo
};
switch (instanceInfo.Provider)
{
case DatabaseProviderEnum.MySql:
var mySqlDbContextOptionsBuilder = new DbContextOptionsBuilder <LobToolsDbContext_MySql>();
implementationsContainer._lobToolsDbContextOptions = mySqlDbContextOptionsBuilder
.UseMySql(instanceInfo.LobConnectionString, ServerVersion.AutoDetect(instanceInfo.LobConnectionString)).Options;
break;
case DatabaseProviderEnum.SqlServer:
var lobToolsDbContextOptionsBuilder = new DbContextOptionsBuilder <LobToolsDbContext>();
implementationsContainer._lobToolsDbContextOptions = lobToolsDbContextOptionsBuilder.UseSqlServer(instanceInfo.LobConnectionString).Options;
break;
case DatabaseProviderEnum.PostgreSql:
var postgreSqlDbContextOptionsBuilder = new DbContextOptionsBuilder <LobToolsDbContext_PostgreSql>();
implementationsContainer._lobToolsDbContextOptions = postgreSqlDbContextOptionsBuilder.UseNpgsql(instanceInfo.LobConnectionString).Options;
break;
default:
throw new NotImplementedException($"The provider {instanceInfo.Provider} is not implemented");
}
if (bridge.BusinessDbContextFactory == null)
{
scope.ServiceProvider.GetRequiredService <ILogger <ImplementationContainer> >().LogError($"Business assembly not loaded");
}
else
{
var dbContextType = bridge.BusinessDbContextFactory.GetType().Assembly.GetTypes().Single(x => x.IsPublic && x.IsSubclassOf(typeof(DbContext)));
reflector.RegisterAssembly(dbContextType.Assembly);
var dbContextOptionsBuilder = Activator.CreateInstance(typeof(DbContextOptionsBuilder <>).MakeGenericType(dbContextType)) as DbContextOptionsBuilder;
switch (instanceInfo.Provider)
{
case DatabaseProviderEnum.MySql:
implementationsContainer._dbContextOptions = dbContextOptionsBuilder
.UseMySql(instanceInfo.DataConnectionString, ServerVersion.AutoDetect(instanceInfo.DataConnectionString)).Options;
break;
case DatabaseProviderEnum.SqlServer:
implementationsContainer._dbContextOptions = dbContextOptionsBuilder.UseSqlServer(instanceInfo.DataConnectionString).Options;
break;
case DatabaseProviderEnum.PostgreSql:
implementationsContainer._dbContextOptions = dbContextOptionsBuilder.UseNpgsql(instanceInfo.DataConnectionString).Options;
break;
default:
throw new NotImplementedException($"The provider {instanceInfo.Provider} is not implemented");
}
}
return(implementationsContainer);
}
public static async Task <ImplementationContainer> Create(IServiceScope scope, MetadataDbContext dbContext, int appInstanceId)
{
var instance = await dbContext.AppInstances.FirstOrDefaultAsync(x => x.Id == appInstanceId);
if (instance == null)
{
return(null);
}
if (!instance.IsEnabled)
{
return(null);
}
var appType = await dbContext.AppTypes.FirstOrDefaultAsync(x => x.Id == instance.AppTypeId);
var bundle = await MetadataBundle.FromDbWithoutNavigations(dbContext, instance.AppTypeId, instance.Id);
bundle.FixupRelationships();
var metadataCache = new MetadataCache(bundle);
var metadataModel = new MetadataModel(bundle);
var instanceInfo = new InstanceInfo
{
AppInstanceId = appInstanceId,
AppTypeId = appType.Id,
InstanceName = instance.Name,
Provider = instance.DatabaseProviderId,
ConnectionString = instance.DataConnectionString,
MigrateDatabase = instance.MigrateDatabase
};
var bridge = new BusinessAssemblyBridge(
instanceInfo,
scope.ServiceProvider.GetRequiredService <IOptions <GlobalConfiguration> >().Value,
scope.ServiceProvider.GetRequiredService <ILogger <BusinessAssemblyBridge> >());
var reflector = new BusinessReflector(metadataCache);
var implementationsContainer = new ImplementationContainer
{
Metadata = metadataCache,
MetadataModel = metadataModel,
BusinessAssemblyBridge = bridge,
Reflector = reflector,
InstanceInfo = instanceInfo
};
if (bridge.BusinessDbContextFactory == null)
{
scope.ServiceProvider.GetRequiredService <ILogger <ImplementationContainer> >().LogError($"Business assembly not loaded");
}
else
{
var dbContextType = bridge.BusinessDbContextFactory.GetType().Assembly.GetTypes().Single(x => x.IsSubclassOf(typeof(DbContext)));
reflector.RegisterAssembly(dbContextType.Assembly);
var dbContextOptionsBuilder = Activator.CreateInstance(typeof(DbContextOptionsBuilder <>).MakeGenericType(dbContextType)) as DbContextOptionsBuilder;
switch (instanceInfo.Provider)
{
case DatabaseProviderEnum.MySql:
implementationsContainer._dbContextOptions = dbContextOptionsBuilder.UseMySql(instanceInfo.ConnectionString).Options;
break;
case DatabaseProviderEnum.SqlServer:
implementationsContainer._dbContextOptions = dbContextOptionsBuilder.UseSqlServer(instanceInfo.ConnectionString).Options;
break;
default:
throw new NotImplementedException($"The provider {instanceInfo.Provider} is not implemented");
}
}
return(implementationsContainer);
}