protected virtual IApp InitAppInstance(Xml.AppInfo appInfo, PathMap appPathMap, IConfigurationRoot appConfiguration)
{
// Load types described in the application XML file
var appType = this.LoadTypeByName(appInfo.App.Type);
var modules = new AppModuleCollection();
foreach (var module in appInfo.Modules)
{
if (module.Environment != null && !module.Environment.Equals(this.EnvName, StringComparison.OrdinalIgnoreCase))
{
continue;
}
modules.Add(this.LoadTypeByName(module.Type));
}
var startupServices = new StartupServiceCollection();
foreach (var startupService in appInfo.StartupServices)
{
if (startupService.Environment != null && !startupService.Environment.Equals(this.EnvName, StringComparison.OrdinalIgnoreCase))
{
continue;
}
startupServices.Add(this.LoadTypeByName(startupService.Type));
}
// Initialize service container required to build and run an application
var services = new ServiceCollection();
services.AddTransient(appType);
services.AddSingleton(provider => new AppIdentity(appInfo.App.Name, this.AppKind));
services.AddSingleton(provider => new AppEnvironment(this.EnvName, appPathMap));
services.AddSingleton(provider => appConfiguration);
services.AddSingleton <IAppModuleCollection>(provider => modules);
services.AddSingleton <IStartupServiceCollection>(provider => startupServices);
services.AddTransient <AppRunnerModule>();
if (PlatformServices.Default != null)
{
services.AddSingleton(provider => PlatformServices.Default);
}
var container = services.BuildServiceProvider();
// Inject runner module in the app and build the app
if (!this.DisableRunnerModule)
{
modules.StageZero.Add(container.GetRequiredService <AppRunnerModule>());
}
// Create the app
return((IApp)container.GetService(appType));
}
protected virtual PathMap CreateAppPathMap(Xml.AppInfo appInfo, PathMap basePathMap)
{
var appPathMaps = new Dictionary <string, PathMap>();
foreach (var pm in appInfo.PathMaps)
{
var appPathMap = new PathMap(pm.Name, pm.Prefix, basePathMap);
appPathMap.Set("AppName", appInfo.App.Name);
appPathMap.Set("AppKind", this.AppKind);
appPathMap.Set("AppEnvironment", this.EnvName ?? string.Empty);
foreach (var path in pm.Paths ?? new Xml.PathMapPathElement[0])
{
var items = path.Items?.Select(element => element.Path) ?? new[] { path.Path };
appPathMap.Set(path.Name, items);
}
appPathMaps[appPathMap.Name] = appPathMap;
}
foreach (var pm in appInfo.PathMaps)
{
if (!string.IsNullOrEmpty(pm.Extends))
{
var appPathMap = appPathMaps[pm.Name];
if (!appPathMaps.TryGetValue(pm.Extends, out var parentPathMap))
{
throw new Exception($"Can not find base PathMap with name \"{pm.Extends}\"");
}
appPathMap.Merge(parentPathMap);
}
}
if (!appPathMaps.TryGetValue(this.PathMapName, out var currentPathMap))
{
throw new Exception($"Can not find path map \"{this.PathMapName}\".");
}
if (this.PathMapPrefix != null)
{
currentPathMap.Prefix = this.PathMapPrefix;
}
this.ApplyPathMapOverrides(currentPathMap);
return(currentPathMap);
}
protected virtual IConfigurationRoot LoadAppConfiguration(Xml.AppInfo appInfo, PathMap appPathMap)
{
var builder = new ConfigurationBuilder();
foreach (var configuration in appInfo.ConfigurationFiles)
{
if (configuration.Environment != null && !configuration.Environment.Equals(this.EnvName, StringComparison.OrdinalIgnoreCase))
{
continue;
}
if (configuration is ConfigurationEnvironmentVariablesElement environmentVariablesConfiguration)
{
builder.Add(new EnvironmentVariablesConfigurationSource()
{
Prefix = environmentVariablesConfiguration.Prefix,
});
}
else if (configuration is ConfigurationFileElement fileConfiguration)
{
var loaded = false;
foreach (var configPath in appPathMap.Compile(fileConfiguration.Path))
{
if (File.Exists(configPath))
{
try
{
FileConfigurationSource source;
switch (fileConfiguration.Type)
{
case "ini": source = new IniConfigurationSource(); break;
case "xml": source = new XmlConfigurationSource(); break;
case "json": source = new JsonConfigurationSource(); break;
default: throw new Exception("Unknown configuration type.");
}
source.FileProvider = new PhysicalFileProvider(Path.GetDirectoryName(configPath));
source.Path = Path.GetFileName(configPath);
source.ReloadOnChange = fileConfiguration.ReloadOnChange;
builder.Add(source);
}
catch (Exception exception)
{
throw new Exception($"Can not read configuration file \"{configPath}\": {exception.Message}", exception);
}
loaded = true;
break;
}
}
if (!fileConfiguration.Optional && !loaded)
{
throw new Exception($"Can not find required configuration file \"{fileConfiguration.Path}\".");
}
}
}
return(builder.Build());
}
