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

   1 // Copyright 2004-2008 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 Resource = NVelocity.Runtime.Resource.Resource;
  16 using ResourceLoader = NVelocity.Runtime.Resource.Loader.ResourceLoader;
  17 using ResourceNotFoundException = NVelocity.Exception.ResourceNotFoundException;
  18
  19 namespace Castle.MonoRail.Framework.Views.NVelocity
  20 {
  21         using System;
  22         using System.IO;
  23
  24         using Commons.Collections;
  25
  26         public class ResourceLoaderAdapter : ResourceLoader
  27         {
  28                 private readonly IViewSourceLoader sourceLoader;
  29
  30                 public ResourceLoaderAdapter(IViewSourceLoader sourceLoader)
  31                 {
  32                         this.sourceLoader = sourceLoader;
  33                 }
  34
  35                 internal IViewSource GetViewSource(String templateName)
  36                 {
  37                         if (sourceLoader.HasSource(templateName))
  38                         {
  39                                 return sourceLoader.GetViewSource(templateName);
  40                         }
  41
  42                         return null;
  43                 }
  44
  45                 public override void Init(ExtendedProperties configuration)
  46                 {
  47                 }
  48
  49                 public override Stream GetResourceStream(string source)
  50                 {
  51                         IViewSource viewSource = GetViewSource(source);
  52
  53                         if (viewSource == null)
  54                         {
  55                                 throw new ResourceNotFoundException(String.Format("Resource could not be located {0}", source));
  56                         }
  57
  58                         return viewSource.OpenViewStream();
  59                 }
  60
  61                 public override bool IsSourceModified(Resource resource)
  62                 {
  63                         CustomTemplate template = resource as CustomTemplate;
  64
  65                         if (template != null)
  66                         {
  67                                 return template.IsModified;
  68                         }
  69
  70                         return false;
  71                 }
  72
  73                 public override long GetLastModified(Resource resource)
  74                 {
  75                         return resource.LastModified;
  76                 }
  77         }
  78 }