1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20
21 package org.apache.directory.server.core.sp.java;
22
23
24 import javax.naming.NamingException;
25
26 import org.apache.directory.shared.ldap.entry.EntryAttribute;
27
28
29 /**
30 * A class loader that loads a class from an attribute.
31 *
32 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
33 * @version $Rev$ $Date$
34 */
35 public class LdapJavaStoredProcClassLoader extends ClassLoader
36 {
37 private EntryAttribute javaByteCodeAttr;
38
39
40 public LdapJavaStoredProcClassLoader( EntryAttribute javaByteCodeAttr )
41 {
42 // Critical call to super class constructor. Required for true plumbing of class loaders.
43 super( LdapJavaStoredProcClassLoader.class.getClassLoader() );
44
45 this.javaByteCodeAttr = javaByteCodeAttr;
46 }
47
48
49 public Class<?> findClass( String name ) throws ClassNotFoundException
50 {
51 byte[] classBytes;
52
53 try
54 {
55 classBytes = javaByteCodeAttr.getBytes();
56 }
57 catch ( NamingException e )
58 {
59 throw new ClassNotFoundException();
60 }
61
62 return defineClass( name, classBytes, 0, classBytes.length );
63 }
64 }