Coverage Report - org.apache.maven.shared.runtime.ClassUtils
 
Classes in this File Line Coverage Branch Coverage Complexity
ClassUtils
80%
8/10
N/A
1.333
 
 1  
 package org.apache.maven.shared.runtime;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  *   http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import java.net.MalformedURLException;
 23  
 import java.net.URL;
 24  
 
 25  
 import org.codehaus.plexus.util.StringUtils;
 26  
 
 27  
 /**
 28  
  * Provides various utility methods for working with classes.
 29  
  * 
 30  
  * @author <a href="mailto:markh@apache.org">Mark Hobson</a>
 31  
  * @version $Id: ClassUtils.java 831910 2009-11-02 15:05:33Z markh $
 32  
  */
 33  
 final class ClassUtils
 34  
 {
 35  
     // constructors -----------------------------------------------------------
 36  
 
 37  
     /**
 38  
      * {@code ClassUtils} is not intended to be instantiated.
 39  
      */
 40  
     private ClassUtils()
 41  0
     {
 42  0
         throw new AssertionError();
 43  
     }
 44  
 
 45  
     // public methods ---------------------------------------------------------
 46  
 
 47  
     /**
 48  
      * Gets a URL to the specified class's default package. For example, if the class {@code foo.Bar} is supplied, then
 49  
      * a URL to the directory above {@code foo} is returned.
 50  
      * 
 51  
      * @param klass
 52  
      *            the class to obtain the base URL for
 53  
      * @return a URL to the class's default package
 54  
      * @throws MalformedURLException
 55  
      *             if the base URL cannot be determined
 56  
      */
 57  
     public static URL getBaseURL( Class<?> klass )
 58  
         throws MalformedURLException
 59  
     {
 60  42
         URL url = getURL( klass );
 61  
 
 62  42
         String className = klass.getName();
 63  
 
 64  42
         int n = StringUtils.countMatches( className, "." );
 65  42
         String relativePath = StringUtils.repeat( "../", n );
 66  
 
 67  42
         return new URL( url, relativePath );
 68  
     }
 69  
 
 70  
     /**
 71  
      * Gets a URL to the specified class.
 72  
      * 
 73  
      * @param klass
 74  
      *            the class to obtain the URL for
 75  
      * @return a URL to the class, or {@code null} if it cannot be found
 76  
      */
 77  
     public static URL getURL( Class<?> klass )
 78  
     {
 79  42
         ClassLoader classLoader = klass.getClassLoader();
 80  
 
 81  42
         String path = klass.getName().replace( '.', '/' ) + ".class";
 82  
 
 83  42
         return classLoader.getResource( path );
 84  
     }
 85  
 }