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Java > Open Source Codes > org > apache > commons > discovery > ResourceClass


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57
58 package org.apache.commons.discovery;
59
60 import java.net.URL JavaDoc;
61
62 import org.apache.commons.discovery.log.DiscoveryLogFactory;
63 import org.apache.commons.logging.Log;
64
65
66 /**
67  * 'Resource' located by discovery.
68  * Naming of methods becomes a real pain ('getClass()')
69  * so I've patterned this after ClassLoader...
70  *
71  * I think it works well as it will give users a point-of-reference.
72  *
73  * @author Richard A. Sitze
74  */
75 public class ResourceClass extends Resource
76 {
77     private static Log log = DiscoveryLogFactory.newLog(ResourceClass.class);
78     public static void setLog(Log _log) {
79         log = _log;
80     }
81     protected Class JavaDoc resourceClass;
82
83     public ResourceClass(Class JavaDoc resourceClass, URL JavaDoc resource) {
84         super(resourceClass.getName(), resource, resourceClass.getClassLoader());
85         this.resourceClass = resourceClass;
86     }
87
88     public ResourceClass(String JavaDoc resourceName, URL JavaDoc resource, ClassLoader JavaDoc loader) {
89         super(resourceName, resource, loader);
90         this.resourceClass = resourceClass;
91     }
92     
93     /**
94      * Get the value of resourceClass.
95      * @return value of resourceClass.
96      */
97     public Class JavaDoc loadClass() {
98         if (resourceClass == null && getClassLoader() != null) {
99             if (log.isDebugEnabled())
100                 log.debug("loadClass: Loading class '" + getName() + "' with " + getClassLoader());
101
102             try {
103                 resourceClass = getClassLoader().loadClass(getName());
104             } catch (ClassNotFoundException JavaDoc e) {
105                 resourceClass = null;
106             }
107         }
108         return resourceClass;
109     }
110     
111     public String JavaDoc toString() {
112         return "ResourceClass[name='" + getName() + "', url='" + getResource() + "', loader='" + getClassLoader() + "']";
113     }
114 }
115
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