Coverage Report - org.apache.tapestry.asset.ContextAsset
 
Classes in this File Line Coverage Branch Coverage Complexity
ContextAsset
0%
0/12
0%
0/2
2.333
 
 1  
 // Copyright 2004, 2005 The Apache Software Foundation
 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  
 package org.apache.tapestry.asset;
 16  
 
 17  
 import org.apache.hivemind.ApplicationRuntimeException;
 18  
 import org.apache.hivemind.Location;
 19  
 import org.apache.hivemind.Resource;
 20  
 import org.apache.hivemind.util.Defense;
 21  
 import org.apache.tapestry.IAsset;
 22  
 import org.apache.tapestry.IRequestCycle;
 23  
 import org.apache.tapestry.Tapestry;
 24  
 
 25  
 import java.io.InputStream;
 26  
 import java.net.URL;
 27  
 
 28  
 /**
 29  
  * An asset whose path is relative to the {@link javax.servlet.ServletContext} containing the
 30  
  * application.
 31  
  *
 32  
  * @author Howard Lewis Ship
 33  
  */
 34  
 
 35  
 public class ContextAsset extends AbstractAsset implements IAsset
 36  
 {
 37  
     private String _contextPath;
 38  
 
 39  
     private String _resolvedURL;
 40  
 
 41  
     private IRequestCycle _requestCycle;
 42  
 
 43  
     public ContextAsset(String contextPath, Resource resource, Location location, IRequestCycle cycle)
 44  
     {
 45  0
         super(resource, location);
 46  
 
 47  0
         Defense.notNull(contextPath, "contextPath");
 48  
 
 49  0
         _contextPath = contextPath;
 50  
 
 51  0
         _requestCycle = cycle;
 52  0
     }
 53  
 
 54  
     /**
 55  
      * Generates a URL for the client to retrieve the asset. The context path is prepended to the
 56  
      * asset path, which means that assets deployed inside web applications will still work (if
 57  
      * things are configured properly).
 58  
      */
 59  
 
 60  
     public String buildURL()
 61  
     {
 62  0
         if (_resolvedURL == null)
 63  0
             _resolvedURL = _contextPath + getResourceLocation().getPath();
 64  
 
 65  0
         return _resolvedURL;
 66  
     }
 67  
 
 68  
     public InputStream getResourceAsStream()
 69  
     {
 70  
         try
 71  
         {
 72  0
             URL url = getResourceLocation().getResourceURL();
 73  
 
 74  0
             return url.openStream();
 75  
         }
 76  0
         catch (Exception ex)
 77  
         {
 78  0
             throw new ApplicationRuntimeException(Tapestry.format(
 79  
               "ContextAsset.resource-missing",
 80  
               getResourceLocation()), ex);
 81  
         }
 82  
     }
 83  
 }