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WebApi.cs
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139 lines (121 loc) · 4.68 KB
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using System;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
using System.Linq;
using System.Net.Http.Formatting;
using System.Reflection;
using System.Web.Http;
using System.Web.Http.Dispatcher;
using ScriptCs.Contracts;
using Owin;
using Microsoft.Owin.Hosting;
namespace ScriptCs.WebApi
{
/// <summary>
/// Creates a web api using an OWIN host
/// </summary>
public class WebApi : IScriptPackContext
{
private readonly ILog _logger;
private readonly IControllerTypeManager _typeManager;
private Action<IAppBuilder> _startupAction;
private HttpConfiguration _config;
private Type[] _controllerTypes;
private bool _useJsonOnly;
private MediaTypeFormatter _theFormatter;
public WebApi(ILog logger, IControllerTypeManager typeManager)
{
_logger = logger;
_typeManager = typeManager;
}
public WebApi Configure(params Type[] controllerTypes)
{
return Configure(b => { }, controllerTypes);
}
public WebApi Configure(params Assembly[] controllerAssemblies)
{
return Configure(b => { }, controllerAssemblies);
}
public WebApi Configure(Action<IAppBuilder> startupAction, params Type[] controllerTypes)
{
_startupAction = startupAction;
return Configure(startupAction, new HttpConfiguration(), controllerTypes);
}
public WebApi Configure(Action<IAppBuilder> startupAction, params Assembly[] controllerAssemblies)
{
_startupAction = startupAction;
return Configure(startupAction, new HttpConfiguration(), controllerAssemblies);
}
public WebApi Configure(Action<IAppBuilder> startupAction, HttpConfiguration config, params Type[] controllerTypes)
{
_startupAction = startupAction;
if (controllerTypes.Length == 0)
{
controllerTypes = _typeManager.GetControllerTypes().ToArray();
}
_controllerTypes = controllerTypes;
_config = config;
ApplyDefaultConfiguration(_config, _controllerTypes);
return this;
}
public WebApi Configure(Action<IAppBuilder> startupAction, HttpConfiguration config, params Assembly[] controllerAssemblies)
{
_startupAction = startupAction;
return Configure(startupAction, config, _typeManager.GetControllerTypes(controllerAssemblies).ToArray());
}
public WebApi Configure(HttpConfiguration config, params Type[] controllerTypes)
{
return Configure(null, config, controllerTypes);
}
public WebApi UseJsonOnly()
{
_useJsonOnly = true;
_theFormatter = null;
return this;
}
public WebApi UseFormatterOnly(MediaTypeFormatter formatter)
{
_theFormatter = formatter;
_useJsonOnly = false;
return this;
}
public IDisposable Start(string baseAddress)
{
return WebApp.Start(baseAddress, appBuilder =>
{
appBuilder.UseWebApi(_config);
if (_startupAction != null)
{
_startupAction(appBuilder);
}
});
}
public FormatterBuilder NewFormatter()
{
return new FormatterBuilder();
}
private void ApplyDefaultConfiguration(HttpConfiguration config,
IEnumerable<Type> controllerTypes)
{
Contract.Requires(controllerTypes != null);
Contract.Requires(ControllerResolver.AllAssignableToIHttpController(controllerTypes));
config.Services.Replace(typeof (IHttpControllerTypeResolver), new ControllerResolver(controllerTypes.ToList()));
config.Routes.Clear();
config.Routes.MapHttpRoute(name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new {id = RouteParameter.Optional}
);
if (_useJsonOnly)
{
var json = config.Formatters.JsonFormatter;
config.Formatters.Clear();
config.Formatters.Add(json);
}
else if (_theFormatter != null)
{
config.Formatters.Clear();
config.Formatters.Add(_theFormatter);
}
}
}
}