private void ResolveServerFactory(StartInfo info)
{
if (info.ServerFactory != null) return;
var serverName = info.Server ?? _settings.DefaultServer;
// TODO: error message for server assembly not found
var serverAssembly = Assembly.Load(_settings.ServerAssemblyPrefix + serverName);
// TODO: error message for assembly does not have ServerFactory attribute
info.ServerFactory = serverAssembly.GetCustomAttributes(false)
.Cast<Attribute>()
.Single(x => x.GetType().Name == "ServerFactory");
}
private void ResolveUrl(StartInfo info)
{
if (info.Url != null) return;
info.Scheme = info.Scheme ?? _settings.DefaultScheme;
info.Host = info.Host ?? _settings.DefaultHost;
info.Port = info.Port ?? _settings.DefaultPort;
info.Path = info.Path ?? "";
if (info.Path != "" && !info.Path.StartsWith("/"))
{
info.Path = "/" + info.Path;
}
if (info.Port.HasValue)
{
info.Url = info.Scheme + "://" + info.Host + ":" + info.Port + info.Path + "/";
}
else
{
info.Url = info.Scheme + "://" + info.Host + info.Path + "/";
}
}
void ResolveOutput(StartInfo info)
{
if (info.Output != null) return;
if (!string.IsNullOrWhiteSpace(info.OutputFile))
{
info.Output = new StreamWriter(info.OutputFile, true);
}
else
{
info.Output = _settings.DefaultOutput;
}
}
private void ResolveApp(StartInfo info)
{
if (info.App == null)
{
var startup = _settings.Loader.Load(info.Startup);
info.App = _settings.Builder.Build<AppDelegate>(startup);
}
info.App = Encapsulate((AppDelegate)info.App, info.Output);
}
private static IDisposable StartServer(StartInfo info)
{
var serverFactoryMethod = info.ServerFactory.GetType().GetMethod("Create");
var serverFactoryParameters = serverFactoryMethod.GetParameters()
.Select(parameterInfo => SelectParameter(parameterInfo, info))
.ToArray();
return (IDisposable)serverFactoryMethod.Invoke(info.ServerFactory, serverFactoryParameters.ToArray());
}
private static object SelectParameter(ParameterInfo parameterInfo, StartInfo info)
{
switch (parameterInfo.Name)
{
case "url":
return info.Url;
case "port":
return info.Port;
case "app":
return info.App;
case "host":
return info.Host;
case "path":
return info.Path;
case "output":
return info.Output;
}
return null;
}
public IDisposable Start(StartInfo info)
{
ResolveOutput(info);
ResolveServerFactory(info);
ResolveApp(info);
ResolveUrl(info);
return StartServer(info);
}
