001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020 021 package org.apache.directory.server.core.sp.java; 022 023 024 import org.apache.directory.shared.ldap.entry.EntryAttribute; 025 import org.apache.directory.shared.ldap.exception.LdapException; 026 027 028 /** 029 * A class loader that loads a class from an attribute. 030 * 031 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 032 * @version $Rev$ $Date$ 033 */ 034 public class LdapJavaStoredProcClassLoader extends ClassLoader 035 { 036 private EntryAttribute javaByteCodeAttr; 037 038 039 public LdapJavaStoredProcClassLoader( EntryAttribute javaByteCodeAttr ) 040 { 041 // Critical call to super class constructor. Required for true plumbing of class loaders. 042 super( LdapJavaStoredProcClassLoader.class.getClassLoader() ); 043 044 this.javaByteCodeAttr = javaByteCodeAttr; 045 } 046 047 048 public Class<?> findClass( String name ) throws ClassNotFoundException 049 { 050 byte[] classBytes; 051 052 try 053 { 054 classBytes = javaByteCodeAttr.getBytes(); 055 } 056 catch ( LdapException e ) 057 { 058 throw new ClassNotFoundException(); 059 } 060 061 return defineClass( name, classBytes, 0, classBytes.length ); 062 } 063 }