/// <summary>
/// Provides services from the referenced host application.
/// Use the <see cref="CreateFrom"/> method instead, it you only need Rhetos context and components.
/// </summary>
public static IServiceProvider GetHostServices(
string rhetosHostAssemblyPath,
Action <IRhetosHostBuilder> configureRhetosHost = null,
Action <HostBuilderContext, IServiceCollection> configureServices = null)
{
// Using the full path for better error reporting.
rhetosHostAssemblyPath = Path.GetFullPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, rhetosHostAssemblyPath));
if (!File.Exists(rhetosHostAssemblyPath))
{
throw new ArgumentException($"Please specify the host application assembly file. File '{rhetosHostAssemblyPath}' does not exist.");
}
var hostBuilder = HostResolver.FindBuilder(rhetosHostAssemblyPath);
hostBuilder.UseContentRoot(Path.GetDirectoryName(rhetosHostAssemblyPath));
hostBuilder.ConfigureServices((hostContext, services) =>
{
services.AddRhetosHost((serviceProvider, rhetosHostBuilder) =>
{
// Overriding Rhetos host application's location settings, because the default values might be incorrect when the host assembly is executed
// from another process with FindBuilder. For example, it could have different AppDomain.BaseDirectory, or the assembly copied in shadow directory.
rhetosHostBuilder.UseRootFolder(Path.GetDirectoryName(rhetosHostAssemblyPath)); // Use host assembly directory as root for all RhetosHostBuilder operations.
rhetosHostBuilder.ConfigureConfiguration(configurationBuilder => configurationBuilder.AddKeyValue(
ConfigurationProvider.GetKey((RhetosAppOptions o) => o.RhetosHostFolder),
Path.GetDirectoryName(rhetosHostAssemblyPath))); // Override the RhetosHostFolder to make sure it is set to the original host folder location, not a shadow copy (for applications such as LINQPad).
configureRhetosHost?.Invoke(rhetosHostBuilder);
});
});
if (configureServices != null)
{
hostBuilder.ConfigureServices(configureServices);
}
return(hostBuilder.Build().Services);
}
