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Java > Open Source Codes > org > jruby > runtime > load > ClassExtensionLibrary


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2  * Version: CPL 1.0/GPL 2.0/LGPL 2.1
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14  * Copyright (C) 2006 Ola Bini <ola@ologix.com>
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28 package org.jruby.runtime.load;
29
30 import java.io.IOException JavaDoc;
31 import org.jruby.Ruby;
32
33 /**
34  * The ClassExtensionLibrary wraps a class which implements BasicLibraryService,
35  * and when asked to load the service, does a basicLoad of the BasicLibraryService.
36  *
37  * When the time comes to add other loading mechanisms for loading a class, this
38  * is the place where they will be added. The load method will check interface
39  * you can load a class with, and do the right thing.
40  */
41 public class ClassExtensionLibrary implements Library {
42     private Class JavaDoc theClass;
43     public ClassExtensionLibrary(Class JavaDoc extension) {
44         theClass = extension;
45     }
46
47     public void load(Ruby runtime) throws IOException JavaDoc {
48         if(BasicLibraryService.class.isAssignableFrom(theClass)) {
49             try {
50                 ((BasicLibraryService)theClass.newInstance()).basicLoad(runtime);
51             } catch(final Exception JavaDoc ee) {
52                 throw new RuntimeException JavaDoc(ee.getMessage());
53             }
54         }
55     }
56 }
57
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