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 021package org.apache.directory.server.core.api.sp.java; 022 023 024import org.apache.directory.api.ldap.model.entry.Attribute; 025import org.apache.directory.api.ldap.model.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 */ 033public class LdapJavaStoredProcClassLoader extends ClassLoader 034{ 035 private Attribute javaByteCodeAttr; 036 037 038 public LdapJavaStoredProcClassLoader( Attribute javaByteCodeAttr ) 039 { 040 // Critical call to super class constructor. Required for true plumbing of class loaders. 041 super( LdapJavaStoredProcClassLoader.class.getClassLoader() ); 042 043 this.javaByteCodeAttr = javaByteCodeAttr; 044 } 045 046 047 /** 048 * {@inheritDoc} 049 */ 050 @Override 051 public Class<?> findClass( String name ) throws ClassNotFoundException 052 { 053 byte[] classBytes; 054 055 try 056 { 057 classBytes = javaByteCodeAttr.getBytes(); 058 } 059 catch ( LdapException e ) 060 { 061 throw new ClassNotFoundException(); 062 } 063 064 return defineClass( name, classBytes, 0, classBytes.length ); 065 } 066}