internal static void Initialize(this IHostEnvironment hostingEnvironment, string contentRootPath,
GtkHostOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (string.IsNullOrEmpty(contentRootPath))
{
throw new ArgumentException("A valid non-empty content root must be provided.",
nameof(contentRootPath));
}
if (!Directory.Exists(contentRootPath))
{
throw new ArgumentException($"The content root '{contentRootPath}' does not exist.",
nameof(contentRootPath));
}
hostingEnvironment.ApplicationName = options.ApplicationName;
hostingEnvironment.ContentRootPath = contentRootPath;
hostingEnvironment.ContentRootFileProvider =
new PhysicalFileProvider(hostingEnvironment.ContentRootPath);
hostingEnvironment.EnvironmentName =
options.Environment ??
hostingEnvironment.EnvironmentName;
}
private void ExecuteHostingStartups()
{
var gtkHostOptions =
new GtkHostOptions(_config, Assembly.GetEntryAssembly()?.GetName().Name ?? string.Empty);
if (gtkHostOptions.PreventHostingStartup)
{
return;
}
var exceptions = new List <Exception>();
_hostingStartupGtkHostBuilder = new HostingStartupGtkHostBuilder(this);
foreach (var assemblyName in gtkHostOptions.GetFinalHostingStartupAssemblies()
.Distinct(StringComparer.OrdinalIgnoreCase))
{
try
{
var assembly = Assembly.Load(new AssemblyName(assemblyName));
foreach (var attribute in assembly.GetCustomAttributes <HostingStartupAttribute>())
{
var hostingStartup = (IHostingStartup)Activator.CreateInstance(attribute.HostingStartupType) !;
hostingStartup.Configure(_hostingStartupGtkHostBuilder);
}
}
catch (Exception ex)
{
exceptions.Add(new InvalidOperationException($"启动程序集{assemblyName}无法执行。有关更多详细信息，请参见内部异常。", ex));
}
}
if (exceptions.Count > 0)
{
_hostingStartupErrors = new AggregateException(exceptions);
}
}
private GtkHostBuilderContext GetGtkHostBuilderContext(HostBuilderContext context)
{
if (!context.Properties.TryGetValue(typeof(GtkHostBuilderContext), out var contextVal))
{
var options = new GtkHostOptions(context.Configuration,
Assembly.GetEntryAssembly()?.GetName().Name ?? string.Empty);
var webHostBuilderContext = new GtkHostBuilderContext
{
Configuration = context.Configuration,
HostingEnvironment = new HostingEnvironment(),
};
webHostBuilderContext.HostingEnvironment.Initialize(context.HostingEnvironment.ContentRootPath,
options);
context.Properties[typeof(GtkHostBuilderContext)] = webHostBuilderContext;
context.Properties[typeof(GtkHostOptions)] = options;
return(webHostBuilderContext);
}
// Refresh config, it's periodically updated/replaced
var webHostContext = (GtkHostBuilderContext)contextVal;
webHostContext.Configuration = context.Configuration;
return(webHostContext);
}