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  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  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  
 package org.apache.commons.scxml.env.servlet;
 18  
 
 19  
 import javax.servlet.ServletContext;
 20  
 
 21  
 import org.apache.commons.scxml.PathResolver;
 22  
 
 23  
 /**
 24  
  * A wrapper around ServletContext that implements PathResolver.
 25  
  *
 26  
  * @see org.apache.commons.scxml.PathResolver
 27  
  */
 28  
 public class ServletContextResolver implements PathResolver {
 29  
 
 30  
     /** Cannot accept a null ServletContext, it will just throw
 31  
      *  NullPointerException down the road. */
 32  
     private static final String ERR_SERVLET_CTX_NULL =
 33  
         "ServletContextResolver cannot be instantiated with a null"
 34  
         + " ServletContext";
 35  
 
 36  
     /** The SevletContext we will use to resolve paths. */
 37  1
     private ServletContext ctx = null;
 38  
 
 39  
     /**
 40  
      * Constructor.
 41  
      *
 42  
      * @param ctx The ServletContext instance for this web application.
 43  
      */
 44  1
     public ServletContextResolver(final ServletContext ctx) {
 45  1
         if (ctx == null) {
 46  1
             throw new IllegalArgumentException(ERR_SERVLET_CTX_NULL);
 47  
         }
 48  0
         this.ctx = ctx;
 49  0
     }
 50  
 
 51  
     /**
 52  
      * Delegates to the underlying ServletContext's getRealPath(String).
 53  
      *
 54  
      * @param ctxPath context sensitive path, can be a relative URL
 55  
      * @return resolved path (an absolute URL) or <code>null</code>
 56  
      * @see org.apache.commons.scxml.PathResolver#resolvePath(java.lang.String)
 57  
      */
 58  
     public String resolvePath(final String ctxPath) {
 59  0
         return ctx.getRealPath(ctxPath);
 60  
     }
 61  
 
 62  
     /**
 63  
      * Retrieve the PathResolver rooted at the given path.
 64  
      *
 65  
      * @param ctxPath context sensitive path, can be a relative URL
 66  
      * @return returns a new resolver rooted at ctxPath
 67  
      * @see org.apache.commons.scxml.PathResolver#getResolver(java.lang.String)
 68  
      */
 69  
     public PathResolver getResolver(final String ctxPath) {
 70  0
         return this;
 71  
     }
 72  
 
 73  
 }
 74