MonoRail/Castle.MonoRail.Framework.Views.NVelocity/CustomTemplate.cs

   1 // Copyright 2004-2007 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 using ResourceNotFoundException = NVelocity.Exception.ResourceNotFoundException;
  16 using Template = NVelocity.Template;
  17
  18 namespace Castle.MonoRail.Framework.Views.NVelocity
  19 {
  20         using System.IO;
  21
  22         public class CustomTemplate : Template
  23         {
  24                 private IViewSource viewSource;
  25
  26                 /// <summary>
  27                 /// gets the named resource as a stream, parses and inits
  28                 /// </summary>
  29                 public override bool Process()
  30                 {
  31                         viewSource = ((ResourceLoaderAdapter) resourceLoader).GetViewSource(Name);
  32
  33                         if (viewSource == null)
  34                         {
  35                                 throw new ResourceNotFoundException("Resource could not be located: " + Name);
  36                         }
  37
  38                         return base.Process();
  39                 }
  40
  41                 public bool IsModified
  42                 {
  43                         get
  44                         {
  45                                 return viewSource.EnableCache && viewSource.LastUpdated < viewSource.LastModified;
  46                         }
  47                 }
  48
  49                 protected override Stream ObtainStream()
  50                 {
  51                         return viewSource.OpenViewStream();
  52                 }
  53         }
  54 }