mcs/class/Mainsoft.Web/Mainsoft.Web.Hosting/ServletFacesPageHandler.cs

   1 using System;\r
   2 using System.Collections.Generic;\r
   3 using System.Text;\r
   4 using System.Web;\r
   5 using javax.faces.component;\r
   6 using System.Web.UI;\r
   7 using javax.faces.context;\r
   8 using javax.faces.lifecycle;\r
   9 using javax.faces;\r
  10 using javax.servlet;\r
  11 using javax.faces.webapp;\r
  12 using javax.servlet.http;\r
  13 using vmw.common;\r
  14 using System.Diagnostics;\r
  15 using javax.faces.render;\r
  16 using System.IO;\r
  17 \r
  18 namespace Mainsoft.Web.Hosting\r
  19 {\r
  20         public abstract class BaseFacesPageHandler\r
  21         {\r
  22                 static protected void SetupResponseWriter (AspNetFacesContext facesContext, string contentType, string characterEncoding) {\r
  23                         RenderKit renderKit = BaseHttpServlet.RenderKitFactory.getRenderKit (facesContext, facesContext.getViewRoot ().getRenderKitId ());\r
  24                         ResponseWriter writer = renderKit.createResponseWriter (new AspNetResponseWriter (facesContext.Context.Response.Output), contentType, characterEncoding);\r
  25                         facesContext.setResponseWriter (writer);\r
  26                 }\r
  27 \r
  28                 #region AspNetResponseWriter\r
  29                 private sealed class AspNetResponseWriter : java.io.Writer\r
  30                 {\r
  31                         readonly TextWriter _writer;\r
  32                         public AspNetResponseWriter (TextWriter writer) {\r
  33                                 _writer = writer;\r
  34                         }\r
  35                         public override void close () {\r
  36                                 _writer.Close ();\r
  37                         }\r
  38 \r
  39                         public override void flush () {\r
  40                                 _writer.Flush ();\r
  41                         }\r
  42 \r
  43                         public override void write (char [] __p1, int __p2, int __p3) {\r
  44                                 _writer.Write (__p1, __p2, __p3);\r
  45                         }\r
  46 \r
  47                         public override void write (int __p1) {\r
  48                                 _writer.Write ((char) __p1);\r
  49                         }\r
  50 \r
  51                         public override void write (char [] __p1) {\r
  52                                 _writer.Write (__p1);\r
  53                         }\r
  54 \r
  55                         public override void write (string __p1) {\r
  56                                 _writer.Write (__p1);\r
  57                         }\r
  58 \r
  59                         public override void write (string __p1, int __p2, int __p3) {\r
  60                                 _writer.Write (__p1, __p2, __p3);\r
  61                         }\r
  62                 }\r
  63                 #endregion\r
  64         }\r
  65 \r
  66         public class ServletFacesPageHandler : BaseFacesPageHandler, IHttpHandler, IServiceProvider\r
  67         {\r
  68                 readonly FacesContextFactory _facesContextFactory;\r
  69                 readonly Lifecycle _lifecycle;\r
  70                 readonly string _executionFilePath;\r
  71                 readonly Type _pageType;\r
  72                 Page _page;\r
  73 \r
  74                 public bool IsReusable {\r
  75                         get { return false; }\r
  76                 }\r
  77 \r
  78                 public ServletFacesPageHandler (string executionFilePath, Type pageType, FacesContextFactory facesContextFactory, Lifecycle lifecycle) {\r
  79                         _facesContextFactory = facesContextFactory;\r
  80                         _lifecycle = lifecycle;\r
  81                         _executionFilePath = executionFilePath;\r
  82                         _pageType = pageType;\r
  83                 }\r
  84 \r
  85                 protected virtual ServletFacesContext GetFacesContext (FacesContextFactory facesContextFactory,\r
  86                                                                                                                                         ServletContext servletContext,\r
  87                                                                                                                                         ServletRequest servletRequest,\r
  88                                                                                                                                         ServletResponse servletResponse,\r
  89                                                                                                                                         Lifecycle lifecycle,\r
  90                                                                                                                                         HttpContext httpContext,\r
  91                                                                                                                                         string executionFilePath) {\r
  92                         return ServletFacesContext.GetFacesContext (facesContextFactory, servletContext, servletRequest, servletResponse, lifecycle, httpContext, executionFilePath);\r
  93                 }\r
  94 \r
  95                 public void ProcessRequest (HttpContext context) {\r
  96                         ServletWorkerRequest wr = (ServletWorkerRequest) ((IServiceProvider) context).GetService (typeof (HttpWorkerRequest));\r
  97                         ServletContext servletContext = wr.GetContext ();\r
  98                         HttpServletRequest request = wr.ServletRequest;\r
  99                         HttpServletResponse response = wr.ServletResponse;\r
 100 \r
 101                         ServletFacesContext facesContext = GetFacesContext (_facesContextFactory, servletContext, request, response, _lifecycle, context, _executionFilePath);\r
 102                         try {\r
 103                                 try {\r
 104                                         try {\r
 105                                                 Trace.WriteLine ("FacesPageHandler: before execute");\r
 106                                                 _lifecycle.execute (facesContext);\r
 107                                                 Trace.WriteLine ("FacesPageHandler: after execute");\r
 108                                         }\r
 109                                         finally {\r
 110                                                 UIViewRoot viewRoot = facesContext.getViewRoot ();\r
 111                                                 if (viewRoot != null && viewRoot.getChildCount () > 0)\r
 112                                                         _page = (Page) viewRoot.getChildren ().get (0);\r
 113                                         }\r
 114                                         Trace.WriteLine ("FacesPageHandler: before render");\r
 115                                         SetupResponseWriter (facesContext, response.getContentType (), response.getCharacterEncoding ());\r
 116                                         _lifecycle.render (facesContext);\r
 117                                         Trace.WriteLine ("FacesPageHandler: after render");\r
 118                                 }\r
 119                                 catch (FacesException fex) {\r
 120                                         Exception inner = fex.InnerException;\r
 121                                         if (inner != null)\r
 122                                                 TypeUtils.Throw (inner);\r
 123                                         throw;\r
 124                                 }\r
 125                         }\r
 126                         finally {\r
 127                                 facesContext.release ();\r
 128                         }\r
 129                 }\r
 130 \r
 131                 public object GetService (Type serviceType) {\r
 132                         if (serviceType == typeof (Type))\r
 133                                 return _pageType;\r
 134                         if (serviceType == typeof (Page))\r
 135                                 return _page;\r
 136                         return null;\r
 137                 }\r
 138         }\r
 139 }\r