Coverage Report - org.apache.commons.scxml.env.servlet.ServletContextResolver

Classes in this File Line Coverage Branch Coverage Complexity
ServletContextResolver
50% 
100% 
1.667

 1  
 /*
 2  
  *
 3  
  *   Copyright 2005-2006 The Apache Software Foundation.
 4  
  *
 5  
  *  Licensed under the Apache License, Version 2.0 (the "License");
 6  
  *  you may not use this file except in compliance with the License.
 7  
  *  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  *  Unless required by applicable law or agreed to in writing, software
 12  
  *  distributed under the License is distributed on an "AS IS" BASIS,
 13  
  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  *  See the License for the specific language governing permissions and
 15  
  *  limitations under the License.
 16  
  *
 17  
  */
 18  
 package org.apache.commons.scxml.env.servlet;
 19  
 
 20  
 import javax.servlet.ServletContext;
 21  
 
 22  
 import org.apache.commons.scxml.PathResolver;
 23  
 
 24  
 /**
 25  
  * A wrapper around ServletContext that implements PathResolver.
 26  
  *
 27  
  * @see org.apache.commons.scxml.PathResolver
 28  
  */
 29  
 public class ServletContextResolver implements PathResolver {
 30  
 
 31  
     /** Cannot accept a null ServletContext, it will just throw
 32  
      *  NullPointerException down the road. */
 33  
     private static final String ERR_SERVLET_CTX_NULL =
 34  
         "ServletContextResolver cannot be instantiated with a null"
 35  
         + " ServletContext";
 36  
 
 37  
     /** The SevletContext we will use to resolve paths. */
 38  1
     private ServletContext ctx = null;
 39  
 
 40  
     /**
 41  
      * Constructor.
 42  
      *
 43  
      * @param ctx The ServletContext instance for this web application.
 44  
      */
 45  1
     public ServletContextResolver(final ServletContext ctx) {
 46  1
         if (ctx == null) {
 47  1
             throw new IllegalArgumentException(ERR_SERVLET_CTX_NULL);
 48  
         }
 49  0
         this.ctx = ctx;
 50  0
     }
 51  
 
 52  
     /**
 53  
      * Delegates to the underlying ServletContext's getRealPath(String).
 54  
      *
 55  
      * @param ctxPath context sensitive path, can be a relative URL
 56  
      * @return resolved path (an absolute URL) or <code>null</code>
 57  
      * @see org.apache.commons.scxml.PathResolver#resolvePath(java.lang.String)
 58  
      */
 59  
     public String resolvePath(final String ctxPath) {
 60  0
         return ctx.getRealPath(ctxPath);
 61  
     }
 62  
 
 63  
     /**
 64  
      * Retrieve the PathResolver rooted at the given path.
 65  
      *
 66  
      * @param ctxPath context sensitive path, can be a relative URL
 67  
      * @return returns a new resolver rooted at ctxPath
 68  
      * @see org.apache.commons.scxml.PathResolver#getResolver(java.lang.String)
 69  
      */
 70  
     public PathResolver getResolver(final String ctxPath) {
 71  0
         return this;
 72  
     }
 73  
 
 74  
 }
 75